High-oxidation-rate copper-cobalt ore quality-dividing and flow-dividing beneficiation-metallurgy combined process method

Abstract

The invention discloses a high-oxidation-rate copper-cobalt ore quality-dividing and flow-dividing beneficiation-metallurgy combined process method. Firstly, raw ore is divided into lump ore and fine ore; the lump ore is subjected to ore grinding, copper sulfide flotation, copper oxide flotation, cobalt flotation and magnetic separation, gradient mineral separation is carried out, and concentrate with the high grade and the low leaching acid consumption is obtained; and the ore grinding product of the fine ore is subjected to a copper sulphide flotation process and regrinding, and copper sulphide concentrate and sulfur separation tailings suitable for wet leaching are obtained. According to the method, the high-oxidation-rate copper-cobalt ore is subjected to quality-divided and flow-divided beneficiation and smelting treatment, the beneficiation recovery rate is increased, the leaching acid consumption is reduced, and beneficiation and smelting economic benefits are increased.

Description

Technical Field

[0001] This invention relates to the fields of mineral processing and smelting, and specifically to a combined process for the beneficiation and smelting of high-oxidation-rate copper-cobalt ore. Background Technology

[0002] With continued economic development, the demand for copper and cobalt metals is increasing, but high-quality resources that are easy to mine and beneficiate are gradually being depleted. High-oxidation-rate copper-cobalt ores with complex mineral compositions, prone to mud formation, and low ore grades have become important raw material sources. Currently, for easily beneficiated high-oxidation-rate copper-cobalt ores, especially those with minimal mud formation, most are processed using a combined beneficiation and metallurgical process. This involves first performing systematic beneficiation and purification to obtain a concentrate with fewer impurities, higher grade, and lower acid consumption. The concentrate product is then subjected to wet leaching. For difficult and extremely difficult-to-beneficiate high-oxidation-rate copper-cobalt ores, due to high reagent consumption, low beneficiation recovery rates, and poor economic benefits, chemical methods are generally the only option. Existing processing methods suffer from low beneficiation recovery rates and high production costs. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to overcome the above-mentioned defects of the prior art and provide a combined process for the separate beneficiation and smelting of high oxidation rate copper-cobalt ore that can improve the beneficiation recovery rate.

[0004] The technical solution adopted by the present invention to solve its technical problem is as follows: a combined process for the fractional beneficiation and smelting of high oxidation rate copper-cobalt ore, wherein the raw ore is first divided into lump ore and fine ore, wherein the particle size of the fine ore is less than 250 mm and the particle size of the lump ore is greater than 250 mm; The lump ore is ground to obtain a lump ore slurry, during which a sulfidating agent and a collector are added; the lump ore slurry is then subjected to copper sulfide roughing to obtain copper sulfide rough concentrate and copper sulfide roughing tailings; the copper sulfide rough concentrate is then subjected to copper sulfide cleaning to obtain copper sulfide concentrate and copper sulfide cleaning tailings; the copper sulfide roughing tailings are then subjected to copper sulfide scavenging to obtain copper sulfide scavenging concentrate and copper sulfide scavenging tailings; the copper sulfide cleaning tailings and / or copper sulfide scavenging concentrate are returned to the copper sulfide roughing process. The copper sulfide scavenging tailings are subjected to copper oxide flotation to obtain copper oxide concentrate and copper oxide flotation tailings; the copper oxide flotation tailings are subjected to cobalt flotation to obtain cobalt concentrate and cobalt flotation tailings; the cobalt flotation tailings are subjected to magnetic separation to obtain magnetic concentrate, magnetically separated concentrate and magnetically separated tailings. Fine ore is ground to obtain a fine ore slurry, with a sulfiding agent and a collector added during the grinding process; the fine ore slurry is then subjected to copper sulfide roughing (B) to obtain copper sulfide rough concentrate (B) and copper sulfide roughing tailings (B); the copper sulfide roughing tailings (B) are then subjected to copper sulfide scavenging (B) to obtain copper sulfide scavenging concentrate (B) and copper sulfide scavenging tailings (B); the copper sulfide rough concentrate (B) and / or copper sulfide scavenging concentrate (B) are regrinded to obtain a regrinded slurry; the regrinded slurry is then subjected to copper sulfide cleaning (B) to obtain copper sulfide concentrate (B) and copper sulfide cleaning tailings (B); the copper sulfide scavenging tailings (B) and copper sulfide cleaning tailings (B) are sulfur beneficiation tailings; The obtained copper sulfide concentrate and / or copper sulfide concentrate B are roasted and then wet leached; one or more of the obtained copper oxide concentrate, cobalt concentrate, magnetic separation concentrate, and sulfur tailings are wet leached; the obtained magnetic separation concentrate is neutralized with the raffinate obtained from the smelting leaching. The raw ore has a copper grade of 1wt%~4wt%, a cobalt grade of 0.05wt%~1wt%, and an oxidation rate of 60wt%~100wt%; the lump ore slurry has a particle size of -0.074mm, accounting for 70wt%~80wt%; the fine ore slurry has a particle size of -0.074mm, accounting for 58wt%~68wt%; and the regrinding slurry has a particle size of -0.074mm, accounting for 70wt%~80wt%.

[0005] Preferably, the particle size of the lump ore slurry is: 73wt%-78wt% of the particle size is -0.074mm.

[0006] Preferably, the slurry concentration of the lump ore is 28wt%~36wt%.

[0007] Preferably, 20g / t to 400g / t of sulfiding agent and 40g / t to 500g / t of collector are added during the grinding process of lump ore.

[0008] Preferably, the copper sulfide roughing includes one or more stages; the concentrate from each stage of copper sulfide roughing is the copper sulfide rough concentrate, the tailings from the last stage of copper sulfide roughing is the copper sulfide roughing tailings, and the tailings from other stages of copper sulfide roughing are sent to the next stage of operation.

[0009] Preferably, the copper sulfide beneficiation includes one or more stages; the concentrate from the last stage of copper sulfide beneficiation is the copper sulfide concentrate, and the concentrates from other stages of copper sulfide beneficiation are sent to the next stage of operation; the tailings from the first stage of copper sulfide beneficiation are the copper sulfide beneficiation tailings, and the tailings from other stages of copper sulfide beneficiation are returned to the previous stage of operation.

[0010] Preferably, the copper sulfide scavenging includes one or more stages; the concentrate from each stage of copper sulfide scavenging is the copper sulfide scavenging concentrate, the tailings from the last stage of copper sulfide scavenging is the copper sulfide scavenging tailings, and the tailings from other stages of copper sulfide scavenging are sent to the next stage of operation.

[0011] Preferably, a collector and a foaming agent are used in the roughing of the copper sulfide.

[0012] Preferably, the amount of collector used in the roughing of copper sulfide is less than 40 g / t, and the amount of foaming agent is 15 g / t to 130 g / t.

[0013] Preferably, a collector and a foaming agent are used in the copper sulfide scavenging process.

[0014] Preferably, the amount of collector used in the copper sulfide scavenging process is less than 25 g / t, and the amount of foaming agent is less than 25 g / t.

[0015] Preferably, the copper oxide flotation includes copper oxide roughing and copper oxide scavenging, and the copper oxide roughing and copper oxide scavenging each include one or more stages; the concentrate from each stage of copper oxide flotation is the copper oxide concentrate, the tailings from the last stage of copper oxide flotation are the copper oxide flotation tailings, and the tailings from other stages of copper oxide flotation are sent to the next stage of operation.

[0016] Preferably, a sulfiding agent, a collector, and a foaming agent are used in the roughing of copper oxide.

[0017] Preferably, in the roughing process of copper oxide, the amount of sulfiding agent is 650g / t to 6000g / t, the amount of collector is 55g / t to 600g / t, and the amount of foaming agent is 10g / t to 55g / t.

[0018] Preferably, a sulfiding agent, a collector, and a foaming agent are used in the copper oxide scavenging process.

[0019] Preferably, the amount of sulfiding agent used in the copper oxide scavenging process is 150g / t to 1500g / t, the amount of collector is 15g / t to 150g / t, and the amount of foaming agent is less than 15g / t.

[0020] Preferably, the cobalt flotation includes cobalt roughing and cobalt scavenging, and the cobalt roughing and cobalt scavenging each include one or more stages; the concentrate from each stage of cobalt flotation is the cobalt concentrate, the tailings from the last stage of cobalt flotation are the cobalt flotation tailings, and the tailings from other stages of cobalt flotation are sent to the next stage of operation.

[0021] Preferably, the cobalt roughing process uses an activator, a sulfiding agent, a collector, and a foaming agent.

[0022] Preferably, the amount of activator used in the cobalt roughing process is 150g / t to 1200g / t, the amount of sulfiding agent is 250g / t to 3500g / t, the amount of collector is 40g / t to 350g / t, and the amount of foaming agent is less than 30g / t.

[0023] Preferably, the cobalt scavenging process uses an activator, a sulfiding agent, a collector, and a foaming agent.

[0024] Preferably, the amount of activator used in the cobalt scavenging process is 30g / t to 300g / t, the amount of sulfiding agent is 100g / t to 1500g / t, the amount of collector is 10g / t to 150g / t, and the amount of foaming agent is less than 15g / t.

[0025] Preferably, the magnetic separation includes magnetic roughing, magnetic scavenging, and magnetic cleaning. The tailings from the magnetic roughing are fed into the magnetic scavenging, and the concentrates from the magnetic roughing and magnetic scavenging are fed into the magnetic cleaning. The concentrate from the magnetic cleaning is the magnetic separation concentrate. The tailings from the magnetic cleaning are the magnetic separation ore, and the tailings from the magnetic scavenging are the magnetic separation tailings.

[0026] Preferably, the field strength used in the magnetic coarse separation is 0.8T~1.4T.

[0027] Preferably, the field strength used in the magnetic sweep separation is 0.8T~1.4T.

[0028] Preferably, the field strength used in the magnetic selection is 0.8T~1.4T.

[0029] Preferably, the collector used in the cobalt flotation comprises a combination of xanthate and pentyl xanthate in a mass ratio of 1:3 to 8.

[0030] Preferably, the activator used in the cobalt flotation includes a combination of soluble copper salt and ethylenediamine in a mass ratio of 1:1 to 4.

[0031] Preferably, the particle size of the fine ore slurry is: 60wt%-65wt% of the particle size is -0.074mm.

[0032] Preferably, the slurry concentration of the powdered ore slurry is 60wt%~75wt%.

[0033] Preferably, 20g / t to 400g / t of sulfiding agent and 40g / t to 500g / t of collector are added during the grinding process of fine ore.

[0034] Preferably, the particle size of the regrinding slurry is: 73wt%-78wt% of particles with a particle size of -0.074mm.

[0035] Preferably, the regrinding slurry has a slurry concentration of 60wt% to 75wt%.

[0036] Preferably, the copper sulfide roughing process B includes one or more stages; the concentrate from each stage of the copper sulfide roughing process B is the copper sulfide rough concentrate B, the tailings from the last stage of the copper sulfide roughing process B are the copper sulfide roughing tailings B, and the tailings from other stages of the copper sulfide roughing process B are sent to the next stage of operation.

[0037] Preferably, the copper sulfide scavenging B includes one or more stages; the concentrate from each stage of copper sulfide scavenging B is the copper sulfide scavenging concentrate B, the tailings from the last stage of copper sulfide scavenging B is the copper sulfide scavenging tailings B, and the tailings from other stages of copper sulfide scavenging B are sent to the next stage of operation.

[0038] Preferably, the copper sulfide concentrate B includes one or more stages; the concentrate of the last stage of copper sulfide concentrate B is the copper sulfide concentrate B, and the concentrates of other stages of copper sulfide concentrate B are sent to the next stage of operation; the tailings of the first stage of copper sulfide concentrate B are the copper sulfide concentrate tailings B, and the tailings of other stages of copper sulfide concentrate B are returned to the previous stage of operation.

[0039] Preferably, a collector and a foaming agent are used in the copper sulfide roughing process B.

[0040] Preferably, in the copper sulfide roughing process B, the amount of collector used is less than 40 g / t and the amount of frother used is 15 g / t to 130 g / t.

[0041] Preferably, a collector and a foaming agent are used in the copper sulfide scavenging process B.

[0042] Preferably, the amount of collector and the amount of foaming agent in the copper sulfide scavenging B are both below 25 g / t.

[0043] Preferably, the copper sulfide concentrate B uses a slurry dispersant, a collector, and a foaming agent.

[0044] Preferably, the amount of sludge dispersant used in the copper sulfide concentrate B is 50g / t to 1500g / t.

[0045] Preferably, the amount of collector used in the copper sulfide concentrate B is less than 65 g / t.

[0046] Preferably, the amount of foaming agent used in the copper sulfide concentrate B is less than 65g / t.

[0047] Preferably, the collector added during the grinding process of the ore powder includes a combination of salicylic acid and pentyl xanthate in a mass ratio of 1:2 to 7.

[0048] Preferably, the collector used in the copper sulfide roughing process B comprises a combination of salicylic acid and pentyl xanthate in a mass ratio of 1:2 to 7.

[0049] Preferably, the collector used in the copper sulfide scavenging process B comprises a combination of salicylic acid and pentyl xanthate in a mass ratio of 1:2 to 7.

[0050] Preferably, the slurry dispersant used in the copper sulfide concentrate B includes sodium hexametaphosphate.

[0051] Preferably, the collector used in the copper sulfide concentrate B comprises a combination of salicylic acid and pentyl xanthate in a mass ratio of 1:2 to 7.

[0052] The notation “-0.074mm” and “-200 mesh” is common in the mineral processing field. The negative sign indicates that the value is below that value. For example, the particle size of -0.074mm indicates that the particle size is below 0.074mm.

[0053] The present invention has the following beneficial effects: (1) The combined beneficiation and smelting process for high oxidation rate copper-cobalt ore of the present invention divides high oxidation rate copper-cobalt ore into lump ore and fine ore and processes them with different beneficiation and smelting processes. Among them, lump ore has good beneficiation properties, low flotation reagent consumption, and high leaching acid consumption. Through copper sulfide flotation, copper oxide flotation, cobalt flotation and magnetic separation, a cascade beneficiation separation is carried out to obtain a concentrate with high grade and low leaching acid consumption. This avoids the high oxidation rate copper-cobalt ore with high mud content and poor beneficiation properties from entering the flotation process, which would worsen the flotation, reduce the flotation recovery rate, and cause metal loss to the tailings. On the other hand, fine ore has poor beneficiation properties, but low leaching acid consumption and the fineness of the leached ore is much lower than the required beneficiation fineness. This can reduce grinding losses and avoid a large amount of acid-consuming substances in the lump ore from entering the slurry, thus reducing leaching acid consumption. (2) For high-oxidation-rate copper-cobalt ore, a beneficiation process of first sulfur followed by oxygen and then magnetic separation of flotation tailings is used to obtain copper sulfide concentrate, copper oxide concentrate, cobalt concentrate, magnetic concentrate and magnetically separated ore, so as to achieve the stepwise separation and enrichment of different copper-bearing minerals in high-oxidation-rate copper-cobalt ore; for magnetically separated ore with low grade and high leaching acid consumption, neutralization with the raffinate obtained from smelting leaching can save a lot of sulfuric acid, and the leaching rate can reach 65%-95%; (3) For copper-cobalt ore with high oxidation rate, copper sulfide concentrate B and sulfur tailings are obtained by grinding, copper sulfide flotation process and regrinding. Copper sulfide concentrate B is leached by roasting and sulfur tailings are leached by wet process to improve the overall recovery rate.

[0054] In addition to the objectives, features, and advantages described above, the present invention has other objectives, features, and advantages. The invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0055] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings: Figure 1 This is a flow chart of the beneficiation process for the lump ore portion in the combined beneficiation and smelting process for high-oxidation-rate copper-cobalt ore in Embodiment 1 of the present invention. Figure 2 This is a flow chart of the beneficiation process for the fine ore portion in the combined beneficiation and smelting process for high-oxidation-rate copper-cobalt ore in Embodiment 1 of the present invention. Figure 3 This is a flowchart of the combined process of separating and smelting copper-cobalt ore with high oxidation rate according to Embodiment 1 of the present invention. Detailed Implementation

[0056] To make the objectives, solutions, and beneficial technologies of this invention clearer, the invention will be further described in detail below with reference to embodiments and accompanying drawings. It should be noted that the embodiments described in this specification are merely illustrative of the invention and are not intended to limit the invention.

[0057] For simplicity, this paper only explicitly discloses some numerical ranges. However, any lower limit can be combined with any upper limit to form an undefined range; and any lower limit can be combined with other lower limits to form an undefined range, just as any upper limit can be combined with any other upper limit to form an undefined range. Furthermore, although not explicitly stated, every point or individual value between the endpoints of a range is included within that range. Therefore, each point or individual value can serve as its own lower or upper limit and be combined with any other point or individual value, or with other lower or upper limits, to form an undefined range.

[0058] In this description, it should be noted that, unless otherwise stated, "above" and "below" include the stated number, "multiple" in "one or more" means two or more, and "more than" in "one or more" means two or more.

[0059] The notation “-0.074mm” and “-200 mesh” is common in the mineral processing field. The negative sign indicates that the value is below that value. For example, the particle size of -0.074mm indicates that the particle size is below 0.074mm.

[0060] An embodiment of the present invention provides a combined process for the fractional beneficiation and smelting of high oxidation rate copper-cobalt ore, wherein the raw ore is first divided into lump ore and fine ore, wherein the particle size of the fine ore is less than 250 mm and the particle size of the lump ore is greater than 250 mm; The lump ore is ground to obtain a lump ore slurry, during which a sulfidating agent and a collector are added; the lump ore slurry is then subjected to copper sulfide roughing to obtain copper sulfide rough concentrate and copper sulfide roughing tailings; the copper sulfide rough concentrate is then subjected to copper sulfide cleaning to obtain copper sulfide concentrate and copper sulfide cleaning tailings; the copper sulfide roughing tailings are then subjected to copper sulfide scavenging to obtain copper sulfide scavenging concentrate and copper sulfide scavenging tailings; the copper sulfide cleaning tailings and / or copper sulfide scavenging concentrate are returned to the copper sulfide roughing process. The copper sulfide scavenging tailings are subjected to copper oxide flotation to obtain copper oxide concentrate and copper oxide flotation tailings; the copper oxide flotation tailings are subjected to cobalt flotation to obtain cobalt concentrate and cobalt flotation tailings; the cobalt flotation tailings are subjected to magnetic separation to obtain magnetic concentrate, magnetically separated concentrate and magnetically separated tailings. Fine ore is ground to obtain a fine ore slurry, with a sulfiding agent and a collector added during the grinding process; the fine ore slurry is then subjected to copper sulfide roughing (B) to obtain copper sulfide rough concentrate (B) and copper sulfide roughing tailings (B); the copper sulfide roughing tailings (B) are then subjected to copper sulfide scavenging (B) to obtain copper sulfide scavenging concentrate (B) and copper sulfide scavenging tailings (B); the copper sulfide rough concentrate (B) and / or copper sulfide scavenging concentrate (B) are regrinded to obtain a regrinded slurry; the regrinded slurry is then subjected to copper sulfide cleaning (B) to obtain copper sulfide concentrate (B) and copper sulfide cleaning tailings (B); the copper sulfide scavenging tailings (B) and copper sulfide cleaning tailings (B) are sulfur beneficiation tailings; The obtained copper sulfide concentrate and / or copper sulfide concentrate B are roasted and then wet leached; one or more of the obtained copper oxide concentrate, cobalt concentrate, magnetic separation concentrate, and sulfur tailings are wet leached; the obtained magnetic separation concentrate is neutralized with the raffinate obtained from the smelting leaching. The raw ore has a copper grade of 1wt%~4wt%, a cobalt grade of 0.05wt%~1wt%, and an oxidation rate of 60wt%~100wt%; the lump ore slurry has a particle size of -0.074mm, accounting for 70wt%~80wt%; the fine ore slurry has a particle size of -0.074mm, accounting for 58wt%~68wt%; and the regrinding slurry has a particle size of -0.074mm, accounting for 70wt%~80wt%.

[0061] In actual production, it has been found that for the same type of high-oxidation-rate copper-cobalt ore, the beneficiation recovery rate, reagent consumption, and leaching acid consumption differ significantly between lump ore and fine ore. Within the same ore heap, the acid consumption per ton of copper leached from some fine ore is as low as 0.1 tons of acid per ton of copper, while the acid consumption per ton of copper leached from lump ore exceeds 10 tons of acid per ton of copper. Phase analysis also reveals significant differences in the gangue content required for acid leaching between fine ore and lump ore; generally, lump ore has a higher gangue content, while fine ore has a lower gangue content, resulting in a faster leaching rate. Currently, many beneficiation plants process high-oxidation-rate copper-cobalt ore fines and lump ore together, which either greatly reduces the beneficiation recovery rate, causing significant metal loss, or results in high leaching acid consumption, impacting the economic efficiency of beneficiation and metallurgy. This scheme first classifies the ore according to particle size. Lump ore with high oxidation rate copper-cobalt has good floatability but high leaching acid consumption. Through cascade beneficiation separation using copper sulfide flotation, copper oxide flotation, cobalt flotation, and magnetic separation, a higher-grade concentrate with lower leaching acid consumption is obtained. The concentrate product is then subjected to wet leaching. The resulting magnetically separated concentrate has low grade and high acid consumption; this is neutralized with the raffinate from smelting leaching, eliminating the need for additional acid addition, achieving a leaching rate of 65-95%, maximizing efficiency. Fine ore with high oxidation rate copper-cobalt has poor beneficiation, high mud content, and low leaching acid consumption. The grinding product undergoes desulfurization and is then subjected to wet leaching, improving the comprehensive utilization efficiency of high oxidation rate copper-cobalt resources and enhancing beneficiation and smelting economic benefits. Separating lump ore and fine ore allows for different grinding methods to be used for different types of ore, saving resources and improving recovery efficiency.

[0062] In some embodiments of the present invention, the raw ore is washed and screened during separation, and the ore over the screen is classified as lump ore and the ore under the screen is classified as powder ore according to the particle size standard.

[0063] In an embodiment of the present invention, the particle size of the lump ore slurry is: 73wt%-78wt% of the particle size is -0.074mm.

[0064] In an embodiment of the present invention, the slurry concentration of the lump ore slurry is 28wt%~36wt%.

[0065] In embodiments of the present invention, 20 g / t to 400 g / t of sulfiding agent and 40 g / t to 500 g / t of collector are added during the grinding process of lump ore. Experiments have shown that adding sulfiding agent and collector during the grinding process of lump ore significantly improves the flotation effect, increases the interaction time between the collector and copper sulfide minerals, adjusts the pH value of the pulp, adjusts the froth state in the sulfidation section, and results in a higher pulp concentration in the mill, exposing fresh mineral surfaces, which is beneficial for the interaction between reagents and minerals.

[0066] In some embodiments of the present invention, the sulfiding agent added during the grinding process of lump ore includes sodium hydrosulfide and / or sodium sulfide.

[0067] In some embodiments of the present invention, the collectors added during the grinding process of lump ore include pentyl xanthate and / or butyl xanthate.

[0068] In an embodiment of the present invention, the copper sulfide roughing includes one or more stages; the concentrate from each stage of copper sulfide roughing is the copper sulfide rough concentrate, the tailings from the last stage of copper sulfide roughing is the copper sulfide roughing tailings, and the tailings from other stages of copper sulfide roughing are sent to the next stage of operation.

[0069] In an embodiment of the present invention, the copper sulfide beneficiation includes one or more stages; the concentrate from the last stage of copper sulfide beneficiation is the copper sulfide concentrate, and the concentrates from other stages of copper sulfide beneficiation are sent to the next stage of operation; the tailings from the first stage of copper sulfide beneficiation are the copper sulfide beneficiation tailings, and the tailings from other stages of copper sulfide beneficiation are returned to the previous stage of operation.

[0070] In an embodiment of the present invention, the copper sulfide scavenging includes one or more stages; the concentrate from each stage of copper sulfide scavenging is the copper sulfide scavenging concentrate, the tailings from the last stage of copper sulfide scavenging is the copper sulfide scavenging tailings, and the tailings from other stages of copper sulfide scavenging are sent to the next stage of operation.

[0071] In embodiments of the present invention, a collector and a foaming agent are used in the roughing of copper sulfide.

[0072] In an embodiment of the present invention, the amount of collector used in the roughing selection of copper sulfide is less than 40 g / t, and the amount of foaming agent is 15 g / t to 130 g / t.

[0073] In some embodiments of the present invention, the collectors used in the roughing of copper sulfide include pentyl xanthate and / or butyl xanthate.

[0074] In some embodiments of the present invention, the foaming agent used in the roughing of copper sulfide includes pine oil.

[0075] In some embodiments of the present invention, the copper sulfide is selected at a grade of 2 to 4.

[0076] In embodiments of the present invention, a collector and a foaming agent are used in the copper sulfide scavenging process.

[0077] In an embodiment of the present invention, the amount of collector used in the copper sulfide scavenging process is less than 25 g / t, and the amount of foaming agent is less than 25 g / t.

[0078] In some embodiments of the present invention, the collector used in the copper sulfide scavenging includes pentyl xanthate and / or butyl xanthate.

[0079] In some embodiments of the present invention, the foaming agent used in the copper sulfide scavenging includes pine oil.

[0080] In an embodiment of the present invention, the copper oxide flotation includes copper oxide roughing and copper oxide scavenging, each of which includes one or more stages; the concentrate from each stage of copper oxide flotation is the copper oxide concentrate, the tailings from the last stage of copper oxide flotation is the copper oxide flotation tailings, and the tailings from other stages of copper oxide flotation are sent to the next stage of operation.

[0081] In embodiments of the present invention, a sulfiding agent, a collector, and a foaming agent are used in the roughing of copper oxide.

[0082] In an embodiment of the present invention, the amount of sulfiding agent used in the roughing selection of copper oxide is 650g / t to 6000g / t, the amount of collector is 55g / t to 600g / t, and the amount of foaming agent is 10g / t to 55g / t.

[0083] In embodiments of the present invention, a sulfiding agent, a collector, and a foaming agent are used in the copper oxide scavenging process.

[0084] In embodiments of the present invention, the amount of sulfiding agent used in the copper oxide scavenging process is 150g / t to 1500g / t, the amount of collector is 15g / t to 150g / t, and the amount of foaming agent is less than 15g / t.

[0085] In some embodiments of the present invention, the sulfiding agent used in the copper oxide flotation includes sodium hydrosulfide and / or sodium sulfide.

[0086] In some embodiments of the present invention, the collector used in the copper oxide flotation includes pentyl xanthate and / or butyl xanthate.

[0087] In some embodiments of the present invention, the frother used in the copper oxide flotation includes pine oil.

[0088] In an embodiment of the present invention, the cobalt flotation includes cobalt roughing and cobalt scavenging, and the cobalt roughing and cobalt scavenging each include one or more stages; the concentrate from each stage of cobalt flotation is the cobalt concentrate, the tailings from the last stage of cobalt flotation are the cobalt flotation tailings, and the tailings from other stages of cobalt flotation are sent to the next stage of operation.

[0089] In embodiments of the present invention, the cobalt roughing process uses an activator, a sulfiding agent, a collector, and a foaming agent.

[0090] In an embodiment of the present invention, the amount of activator used in the cobalt roughing process is 150g / t to 1200g / t, the amount of sulfiding agent is 250g / t to 3500g / t, the amount of collector is 40g / t to 350g / t, and the amount of foaming agent is less than 30g / t.

[0091] In embodiments of the present invention, an activator, a sulfiding agent, a collector, and a foaming agent are used in the cobalt scavenging process.

[0092] In the embodiments of the present invention, the amount of activator used in the cobalt scavenging process is 30g / t to 300g / t, the amount of sulfiding agent is 100g / t to 1500g / t, the amount of collector is 10g / t to 150g / t, and the amount of foaming agent is less than 15g / t.

[0093] In embodiments of the present invention, the collector used in the cobalt flotation comprises a combination of xanthate and pentyl xanthate in a mass ratio of 1:3 to 8. Using this collector can significantly improve the cobalt flotation recovery rate.

[0094] In embodiments of the present invention, the activator used in the cobalt flotation comprises a combination of soluble copper salt and ethylenediamine in a mass ratio of 1:1 to 4. Using this activator can significantly improve the cobalt flotation recovery rate.

[0095] Soluble copper salts dissociate in water to release Cu 2+ Ethylenediamine (abbreviated as "en") has two amino groups (-NH2), each of which can donate a lone pair of electrons. A Cu 2+ It coordinates with two ethylenediamine molecules to form a stable, water-soluble complex cation [Cu(en)2]. 2+ In the alkaline (pH>9) pulp environment required for flotation, free Cu 2+ It will rapidly form Cu(OH)₂ precipitate and become ineffective. [Cu(en)₂] 2+ It is very stable and can effectively prevent copper ion precipitation, ensuring that the activator components are present in the slurry.

[0096] Free Cu 2+ It is extremely reactive and adsorbs indiscriminately onto the surfaces of almost all minerals (including gangue), resulting in poor selectivity and high reagent consumption. [Cu(en)2] 2+ Due to their size, structure, and electrical properties, complex ions can more selectively adsorb onto the surface of cobalt minerals (such as cobalt pyrite CoAsS) or cobalt-containing pyrite, thus achieving targeted transport.

[0097] When [Cu(en)2] 2+ After the complex ions are adsorbed onto the surface of cobalt minerals, their stable structure is disrupted under the catalytic action of the mineral surface. Ethylenediamine dissociates from the copper ions and is released back into the slurry, where it can continue to bind with new Cu ions. 2+ Recycling. Highly active Cu 2+ It is precisely placed on the mineral surface. It can immediately undergo an ion exchange reaction with the mineral surface to form a hydrophobic layer similar to chalcopyrite (Cu2S) or Cu. 2-xThe active film of S provides ideal adsorption sites for the added collector. The collector undergoes strong chemisorption with the copper film to form hydrophobic copper xanthate (CuX), which greatly increases the hydrophobicity of the cobalt mineral surface, making it easier for it to adhere to the bubbles and float.

[0098] In some embodiments of the present invention, the soluble copper salt is copper sulfate.

[0099] In some embodiments of the present invention, the sulfiding agent used in the cobalt flotation includes sodium hydrosulfide and / or sodium sulfide.

[0100] In some embodiments of the present invention, the frother used in the cobalt flotation includes pine oil.

[0101] In an embodiment of the present invention, the magnetic separation includes magnetic roughing, magnetic scavenging, and magnetic cleaning. The tailings from the magnetic roughing are fed into the magnetic scavenging, and the concentrates from the magnetic roughing and magnetic scavenging are fed into the magnetic cleaning. The concentrate from the magnetic cleaning is the magnetic separation concentrate. The tailings from the magnetic cleaning are the magnetic separation ore, and the tailings from the magnetic scavenging are the magnetic separation tailings.

[0102] In an embodiment of the present invention, the field strength used for magnetic coarse separation is 0.8T~1.4T.

[0103] In an embodiment of the present invention, the field strength used for magnetic scanning is 0.8T~1.4T.

[0104] In an embodiment of the present invention, the field strength used for magnetic selection is 0.8T~1.4T.

[0105] In an embodiment of the present invention, the particle size of the ore slurry is: -0.074mm particles account for 60wt%-65wt%. The ore slurry has a good processing effect even with a low fineness standard. Here, the -0.074mm particles can account for only 60wt%-65wt% in grinding, which can greatly reduce grinding energy consumption and grinding auxiliary materials.

[0106] In an embodiment of the present invention, the slurry concentration of the fine ore slurry is 60wt%~75wt%.

[0107] In an embodiment of the present invention, 20 g / t to 400 g / t of sulfiding agent and 40 g / t to 500 g / t of collector are added during the grinding process of fine ore.

[0108] In embodiments of the present invention, the collector added during the grinding process of the fine ore includes a combination of salicylic acid and pentyl xanthate in a mass ratio of 1:2 to 7.

[0109] In some embodiments of the present invention, the sulfiding agent added during the grinding process of the ore powder includes sodium hydrosulfide and / or sodium sulfide.

[0110] In an embodiment of the present invention, the particle size of the regrinding slurry is: 73wt%-78wt% of particles with a particle size of -0.074mm. Regrinding allows for the complete dissociation of copper sulfide intergrowths, and by incorporating regrinding, only a low degree of grinding is required in the initial stage, thus reducing grinding energy consumption.

[0111] In some embodiments of the present invention, when the copper sulfide crude concentrate B and the copper sulfide scavenging concentrate B are regrinded, hydraulic classification is first performed to grind the large-particle-size sand products and combine them to obtain regrinding slurry.

[0112] In an embodiment of the present invention, the refractory slurry concentration is 60wt%~75wt%.

[0113] In an embodiment of the present invention, the copper sulfide roughing process B includes one or more stages; the concentrate from each stage of the copper sulfide roughing process B is the copper sulfide rough concentrate B, the tailings from the last stage of the copper sulfide roughing process B are the copper sulfide roughing tailings B, and the tailings from other stages of the copper sulfide roughing process B are sent to the next stage of operation.

[0114] In an embodiment of the present invention, the copper sulfide scavenging B includes one or more stages; the concentrate of each stage of copper sulfide scavenging B is the copper sulfide scavenging concentrate B, the tailings of the last stage of copper sulfide scavenging B is the copper sulfide scavenging tailings B, and the tailings of other stages of copper sulfide scavenging B are sent to the next stage of operation.

[0115] In an embodiment of the present invention, the copper sulfide beneficiation B includes one or more stages; the concentrate of the last stage of copper sulfide beneficiation B is the copper sulfide concentrate B, and the concentrates of other stages of copper sulfide beneficiation B are sent to the next stage of operation; the tailings of the first stage of copper sulfide beneficiation B are the copper sulfide beneficiation tailings B, and the tailings of other stages of copper sulfide beneficiation B are returned to the previous stage of operation.

[0116] In an embodiment of the present invention, a collector and a foaming agent are used in the rough selection of copper sulfide B.

[0117] In an embodiment of the present invention, the amount of collector used in the copper sulfide roughing process B is less than 40 g / t, and the amount of frother used is 15 g / t to 130 g / t.

[0118] In an embodiment of the present invention, the collector used in the copper sulfide roughing process B comprises a combination of salicylic acid and pentyl xanthate in a mass ratio of 1:2 to 7.

[0119] In some embodiments of the present invention, the foaming agent used in the copper sulfide roughing B includes pine oil.

[0120] In an embodiment of the present invention, a collector and a foaming agent are used in the copper sulfide scavenging process B.

[0121] In an embodiment of the present invention, the amount of collector used in the copper sulfide scavenging B is less than 25 g / t, and the amount of foaming agent used is less than 25 g / t.

[0122] In an embodiment of the present invention, the collector used in the copper sulfide scavenging B comprises a combination of salicylic acid and pentyl xanthate in a mass ratio of 1:2 to 7.

[0123] In some embodiments of the present invention, the foaming agent used in the copper sulfide scavenging B includes pine oil.

[0124] In an embodiment of the present invention, the copper sulfide concentrate B uses a slurry dispersant, a collector, and a foaming agent.

[0125] In an embodiment of the present invention, the amount of sludge dispersant used in the copper sulfide concentrate B is 50g / t to 1500g / t.

[0126] In an embodiment of the present invention, the amount of collector used in the copper sulfide concentrate B is less than 65 g / t.

[0127] In an embodiment of the present invention, the amount of foaming agent used in the copper sulfide concentrate B is less than 65g / t.

[0128] In embodiments of the present invention, the sludge dispersant used in the copper sulfide concentrate B includes sodium hexametaphosphate. Sodium hexametaphosphate hydrolyzes in water and adsorbs onto the surface of the sludge particles. Its hydrolysis products—polyphosphate ions carrying multiple negative charges—strongly adsorb onto the sludge surface. This adsorption significantly increases the negative charge density on the surface of the sludge particles, thereby increasing the electrostatic repulsion between particles, making them difficult to approach and aggregate, thus promoting dispersion. The relatively long molecular chain of sodium hexametaphosphate, after adsorption onto the particle surface, creates a spatial barrier extending into the solution, physically hindering the approach of other particles, thereby aiding dispersion.

[0129] In an embodiment of the present invention, the collector used in the copper sulfide concentrate B comprises a combination of salicylic acid and pentyl xanthate in a mass ratio of 1:2 to 7.

[0130] In some embodiments of the present invention, the foaming agent used in copper sulfide concentrate B includes pine oil.

[0131] In some embodiments of the present invention, the copper sulfide concentrate B is grade 2 to 4.

[0132] Example The following examples describe the disclosure of this invention in more detail. These examples are merely illustrative, as various modifications and variations will be apparent to those skilled in the art within the scope of this disclosure. Unless otherwise stated, all parts, percentages, and ratios reported in the following examples are based on weight. Unless otherwise stated, all reagents used in the examples are available commercially or synthesized using conventional methods and are ready for use without further processing. Unless otherwise stated, all instruments used in the examples are available commercially.

[0133] Example 1 This embodiment describes a combined process for the fractional beneficiation and smelting of high-oxidation-rate copper-cobalt ore. The raw ore has a copper grade of 2.59 wt%, a cobalt grade of 0.18 wt%, and an oxidation rate of 85 wt%. The raw ore is divided into fine ore with a particle size of less than 250 mm and lump ore with a particle size of more than 250 mm. During the separation process, the ore is washed and screened. According to the particle size standard, the ore over the screen is classified as lump ore, and the ore under the screen is classified as fine ore. The copper and cobalt grades of the lump ore are 2.85 wt% and 0.21 wt%, respectively, with an ore oxidation rate of 80 wt%. The copper and cobalt grades of the fine ore are 2.19 wt% and 0.14 wt%, respectively, with an ore oxidation rate of 93 wt%.

[0134] Lump ore and fine ore are processed using different beneficiation processes. The beneficiation process flow for lump ore in this embodiment is as follows: Figure 1 As shown, the beneficiation process flow for fine ore is as follows: Figure 2 As shown, the specific details are as follows.

[0135] Lump ore beneficiation process: (1) Grinding: Grind the lump ore to obtain lump ore slurry. Sulfidating agent (sodium hydrosulfide, dosage 120g / t) and collector (pentyl xanthate, dosage 150g / t) are added during the grinding process of lump ore. The particle size of the obtained lump ore slurry is: the particle size of -0.074mm accounts for 74wt%, and the slurry concentration is 32wt%. (2) The lump ore slurry is subjected to copper sulfide roughing to obtain copper sulfide rough concentrate and copper sulfide roughing tailings; The copper sulfide roughing is a first stage, the resulting concentrate is the copper sulfide rough concentrate, and the resulting tailings are the copper sulfide roughing tailings. Foaming agent (pine oil, dosage 40g / t) is used in the roughing of copper sulfide. (3) The copper sulfide rough concentrate is subjected to copper sulfide beneficiation to obtain copper sulfide concentrate and copper sulfide beneficiation tailings; the copper sulfide beneficiation tailings are returned to the copper sulfide rough concentrate. The copper sulfide beneficiation process is at least level four; the concentrate from the final copper sulfide beneficiation process is called the copper sulfide concentrate, while the concentrates from other levels of copper sulfide beneficiation process are sent to the next level of operation; the tailings from the first level of copper sulfide beneficiation process are called the copper sulfide beneficiation tailings, while the tailings from other levels of copper sulfide beneficiation process are returned to the previous level of operation. (4) The copper sulfide roughing tailings are subjected to copper sulfide scavenging to obtain copper sulfide scavenging concentrate and copper sulfide scavenging tailings; the copper sulfide scavenging concentrate is returned to the copper sulfide roughing process. The copper sulfide scavenging is a primary process; the resulting concentrate is the copper sulfide scavenging concentrate, and the resulting tailings are the copper sulfide scavenging tailings; The copper sulfide scavenging process uses a collector (pentyl xanthate, dosage 15 g / t). (5) The copper sulfide scavenging tailings are subjected to copper oxide flotation to obtain copper oxide concentrate and copper oxide flotation tailings; The copper oxide flotation includes copper oxide roughing and copper oxide scavenging. The copper oxide roughing is two-stage, and the copper oxide scavenging is one-stage. The concentrates from each stage of copper oxide flotation are combined to form the copper oxide concentrate. The tailings from the last stage of copper oxide flotation are the copper oxide flotation tailings. The tailings from other stages of copper oxide flotation are sent to the next stage of operation. The first-stage roughing of copper oxide uses a sulfiding agent (sodium hydrosulfide, 1500 g / t), a collector (pentyl xanthate, 140 g / t), and a foaming agent (pine oil, 10 g / t). The second-stage roughing of copper oxide uses a sulfiding agent (sodium hydrosulfide, dosage 700 g / t) and a collector (pentyl xanthate, dosage 60 g / t). The copper oxide scavenging process uses a sulfiding agent (sodium hydrosulfide, 700 g / t), a collector (pentyl xanthate, 50 g / t), and a foaming agent (pine oil, 5 g / t). (6) The copper oxide flotation tailings are subjected to cobalt flotation to obtain cobalt concentrate and cobalt flotation tailings; The cobalt flotation includes cobalt roughing and cobalt scavenging. The cobalt roughing is two-stage and the cobalt scavenging is one-stage. The concentrates from each stage of cobalt flotation are combined to form the cobalt concentrate. The tailings from the last stage of cobalt flotation are the cobalt flotation tailings. The tailings from other stages of cobalt flotation are sent to the next stage of operation. The activator used in the cobalt flotation is a combination of copper sulfate and ethylenediamine in a mass ratio of 1:2; The collector used in the cobalt flotation is a combination of black powder and pentyl xanthate in a mass ratio of 1:3; The first stage of cobalt roughing uses an activator (400 g / t), a sulfiding agent (sodium hydrosulfide, 1000 g / t), a collector (60 g / t), and a foaming agent (pine oil, 5 g / t). The second stage of cobalt roughing uses an activator (200 g / t), a sulfiding agent (sodium hydrosulfide, 600 g / t), and a collector (50 g / t). The cobalt scavenging process uses an activator (150 g / t), a sulfiding agent (sodium hydrosulfide, 500 g / t), a collector (30 g / t), and a foaming agent (pine oil, 5 g / t). (7) The cobalt flotation tailings are subjected to magnetic separation to obtain magnetic concentrate, magnetic ore concentrate and magnetic tailings; The magnetic separation includes magnetic roughing, magnetic scavenging, and magnetic cleaning. The tailings from magnetic roughing enter magnetic scavenging, and the concentrates from both magnetic roughing and magnetic scavenging are sent to magnetic cleaning. The concentrate from magnetic cleaning is the magnetic separation concentrate. The tailings from magnetic cleaning are the magnetic separation ore, and the tailings from magnetic scavenging are the magnetic separation tailings. The field strength used for the magnetic coarse separation is 1.3T; the field strength used for the magnetic sweep separation is 1.3T; and the field strength used for the magnetic fine separation is 1.1T.

[0136] Fine ore beneficiation process: (1) Grinding: The fine ore is ground to obtain fine ore slurry. During the grinding process, a sulfiding agent (sodium hydrosulfide, dosage 120g / t) and a collector (a combination of salicylic acid and pentyl xanthate in a mass ratio of 1:3, dosage 150g / t) are added. The particle size of the resulting fine ore slurry is: 60wt% of particles with a particle size of -0.074mm and a slurry concentration of 28wt%. (2) The fine ore slurry is subjected to copper sulfide roughing B to obtain copper sulfide rough concentrate B and copper sulfide roughing tailings B; The copper sulfide roughing process B is a first-stage process; the resulting concentrate is the copper sulfide rough concentrate B, and the resulting tailings are the copper sulfide roughing tailings B; The copper sulfide roughing process B uses a foaming agent (pine oil, dosage 25g / t). (3) The copper sulfide roughing tailings B is subjected to copper sulfide scavenging B to obtain copper sulfide scavenging concentrate B and copper sulfide scavenging tailings B; The copper sulfide scavenging process B is a primary process; the resulting concentrate is the copper sulfide scavenging concentrate B, and the resulting tailings are the copper sulfide scavenging tailings B; The copper sulfide scavenging process B uses a collector (a combination of salicylic acid and pentyl xanthate in a mass ratio of 1:3, at a dosage of 15 g / t) and a foaming agent (pine oil, at a dosage of 5 g / t). (4) The copper sulfide crude concentrate B and the copper sulfide scavenging concentrate B are combined and regrinded to obtain a regrinding slurry; When the copper sulfide crude concentrate B and the copper sulfide scavenging concentrate B are regrinded, hydraulic classification is first performed to grind the large-particle-size sand products into finer particles and combine them to obtain regrinding slurry. The regrinding slurry has the following particle size distribution: -0.074 mm particles account for 75 wt%; the slurry concentration is 65 wt%. (5) The regrinding slurry is subjected to copper sulfide beneficiation B to obtain copper sulfide concentrate B and copper sulfide beneficiation tailings B; the obtained copper sulfide beneficiation tailings B and copper sulfide scavenging tailings B are combined into beneficiation tailings. The copper sulfide beneficiation process B is divided into four stages; the concentrate from the last stage of copper sulfide beneficiation B is called copper sulfide concentrate B, and the concentrates from other stages of copper sulfide beneficiation B are sent to the next stage of operation; the tailings from the first stage of copper sulfide beneficiation B are called copper sulfide beneficiation tailings B, and the tailings from other stages of copper sulfide beneficiation B are returned to the previous stage of operation. The first-stage copper sulfide beneficiation process (B) uses a clay dispersant (sodium hexametaphosphate, 300 g / t), a collector (a combination of salicylic acid and pentyl xanthate in a mass ratio of 1:3, 20 g / t), and a foaming agent (pine oil, 5 g / t). The second-stage copper sulfide beneficiation process (B) uses a clay dispersant (sodium hexametaphosphate, 150 g / t), a collector (a combination of salicylic acid and pentyl xanthate in a mass ratio of 1:3, 10 g / t), and a foaming agent (pine oil, 2 g / t).

[0137] Concentrate trend: like Figure 3 As shown, the copper sulfide concentrate obtained from the lump ore portion is roasted and then subjected to wet leaching, while the copper oxide concentrate, cobalt concentrate, and magnetic separation concentrate are also subjected to wet leaching; the magnetic separation concentrate is neutralized with the raffinate obtained from the smelting leaching. The copper sulfide concentrate B obtained from the fine ore portion is roasted and then subjected to wet leaching, while the tailings from the sulfur beneficiation process are also subjected to wet leaching.

[0138] Comparative Example 1 This comparative example uses the same ore as in Example 1.

[0139] In contrast, this comparative example does not divide high-oxidation-rate copper-cobalt ore into lump ore and fine ore, but processes it entirely according to the lump ore process. The following are the specific differences from Example 1.

[0140] (1) In the grinding process, a sulfiding agent (sodium hydrosulfide, dosage 140g / t) and a collector (pentyl xanthate, dosage 170g / t) are added during the grinding process; the rest is the same as in Example 1; (2) In the roughing process of copper sulfide, a frother (pine oil, dosage 45 g / t) and a collector (pentyl xanthate, dosage 20 g / t) are used; the rest is the same as in Example 1; (3) The copper sulfide beneficiation process is the same as in Example 1; (4) The copper sulfide scavenging process is the same as in Example 1; (5) In the copper oxide flotation process: The first-stage roughing of copper oxide uses a sulfiding agent (sodium hydrosulfide, 1800 g / t), a collector (pentyl xanthate, 160 g / t), and a foaming agent (pine oil, 15 g / t). The second-stage roughing of copper oxide uses a sulfiding agent (sodium hydrosulfide, 800 g / t), a collector (pentyl xanthate, 70 g / t), and a foaming agent (pine oil, 5 g / t). The copper oxide scavenging process uses a sulfiding agent (sodium hydrosulfide, dosage 800 g / t) and a collector (pentyl xanthate, dosage 60 g / t). Everything else is the same as in Example 1; (6) In the cobalt flotation process: The first stage of cobalt roughing uses an activator (500 g / t), a sulfiding agent (sodium hydrosulfide, 1200 g / t), a collector (70 g / t), and a foaming agent (pine oil, 10 g / t). The second stage of cobalt roughing uses an activator (250 g / t), a sulfiding agent (sodium hydrosulfide, 700 g / t), a collector (60 g / t), and a foaming agent (pine oil, 5 g / t). The cobalt scavenging process uses an activator (200 g / t), a sulfiding agent (sodium hydrosulfide, 600 g / t), a collector (35 g / t), and a foaming agent (pine oil, 5 g / t). Everything else is the same as in Example 1; (7) The magnetic separation process is the same as in Example 1.

[0141] Comparative Example 2 This comparative example uses the same ore as in Example 1.

[0142] In contrast, this comparative example does not divide high-oxidation-rate copper-cobalt ore into lump ore and fine ore, but processes it entirely according to the fine ore process. The following are the specific differences from Example 1.

[0143] (1) In the grinding process, a sulfiding agent (sodium hydrosulfide, dosage 150g / t) and a collector (a combination of salicylic acid and pentyl xanthate in a mass ratio of 1:3, dosage 180g / t) are added during the grinding process; other aspects are the same as in Example 1; (2) In the roughing process B of copper sulfide, a foaming agent (pine oil, dosage 35g / t) is used; otherwise, it is the same as in Example 1; (3) In the copper sulfide scavenging process B, the collector (a combination of salicylic acid and pentyl xanthate in a mass ratio of 1:3, with a dosage of 20 g / t) and the foaming agent (pine oil, with a dosage of 5 g / t) are used; the rest is the same as in Example 1; (4) The regrinding process is the same as in Example 1; (5) In the copper sulfide beneficiation process B: The first-stage copper sulfide beneficiation process (B) uses a clay dispersant (sodium hexametaphosphate, 350 g / t), a collector (a combination of salicylic acid and pentyl xanthate in a mass ratio of 1:3, 30 g / t), and a foaming agent (pine oil, 5 g / t). The second-stage copper sulfide beneficiation process (B) uses a clay dispersant (sodium hexametaphosphate, 200 g / t), a collector (a combination of salicylic acid and pentyl xanthate in a mass ratio of 1:3, 15 g / t), and a foaming agent (pine oil, 3 g / t). Everything else is the same as in Example 1.

[0144] The experimental results of Example 1, Comparative Example 1, and Comparative Example 2 are shown in Table 1. Table 1 shows that the recovery rate of lump ore beneficiation in Example 1 was 84.06%; the consumption of sulfiding agent was 5.12 kg / ton of ore, and the consumption of collector was 0.565 kg / ton of ore; the recovery rate of mixed ore beneficiation in Comparative Example 1, without distinguishing between lump ore and fine ore, was 71.23%; while the recovery rate of Comparative Example 1 decreased, the amount of flotation reagents increased, with a sulfiding agent consumption of 6.04 kg / ton of ore and a collector consumption of 0.66 kg / ton of ore; the recovery rate of fine ore beneficiation in Comparative Example 3 was approximately 61%. This indicates that using lump ore beneficiation technology after fine ore enters the lump ore group worsens the flotation effect and consumes more flotation reagents.

[0145] The copper oxide concentrate, cobalt concentrate, and magnetic separation concentrate obtained from the lump ore portion of Example 1 were subjected to wet leaching, with an acid consumption of approximately 4.50 tons of acid per ton of copper. The sulfur tailings obtained from the fine ore portion of Example 1 were subjected to wet leaching, with an acid consumption of approximately 2.57 tons of acid per ton of copper. The acid consumption for leaching the concentrate obtained in Comparative Example 1 was approximately 4.15 tons of acid per ton of copper, and the acid consumption for leaching the sulfur tailings obtained in Comparative Example 2 was approximately 8.35 tons of acid per ton of copper (the acid consumption of copper sulfide roasted sand is very low and negligible). It is evident that dividing high-oxidation-rate copper-cobalt ore into lump ore and fine ore, and using the invented combined beneficiation and smelting process, improves the beneficiation recovery rate, reduces the consumption of flotation reagents, and reduces the leaching acid consumption.

[0146] Table 1. Results of mineral processing tests in Example 1, Comparative Example 1, and Comparative Example 2

[0147] Example 2 This embodiment describes a combined process for the fractional beneficiation and smelting of high-oxidation-rate copper-cobalt ore. The raw ore has a copper grade of 1.76 wt%, a cobalt grade of 0.43 wt%, and an oxidation rate of 82 wt%. The raw ore is divided into fine ore with a particle size of less than 250 mm and lump ore with a particle size of more than 250 mm. During the separation process, the ore is washed and screened. According to the particle size standard, the ore over the screen is classified as lump ore and the ore under the screen is classified as fine ore. The copper and cobalt grades of the lump ore are 1.73 wt% and 0.42 wt%, respectively, with an ore oxidation rate of 75 wt%. The copper and cobalt grades of the fine ore are 1.84 wt% and 0.45 wt%, respectively, with an ore oxidation rate of 90 wt%.

[0148] Lump ore and fine ore are processed using different beneficiation and smelting processes. The specific details are as follows.

[0149] Lump ore beneficiation process: (1) Grinding: Grind the lump ore to obtain lump ore slurry. Sulfidating agent (sodium hydrosulfide, dosage 100g / t) and collector (pentyl xanthate, dosage 120g / t) are added during the grinding process of lump ore. The particle size of the obtained lump ore slurry is: the particle size of -0.074mm accounts for 75wt%, and the slurry concentration is 35wt%. (2) The lump ore slurry is subjected to copper sulfide roughing to obtain copper sulfide rough concentrate and copper sulfide roughing tailings; The copper sulfide roughing is a first stage, the resulting concentrate is the copper sulfide rough concentrate, and the resulting tailings are the copper sulfide roughing tailings. Foaming agent (pine oil, dosage 35g / t) is used in the roughing of copper sulfide. (3) The copper sulfide rough concentrate is subjected to copper sulfide beneficiation to obtain copper sulfide concentrate and copper sulfide beneficiation tailings; the copper sulfide beneficiation tailings are returned to the copper sulfide rough concentrate. The copper sulfide beneficiation process is at least level four; the concentrate from the final copper sulfide beneficiation process is called the copper sulfide concentrate, while the concentrates from other levels of copper sulfide beneficiation process are sent to the next level of operation; the tailings from the first level of copper sulfide beneficiation process are called the copper sulfide beneficiation tailings, while the tailings from other levels of copper sulfide beneficiation process are returned to the previous level of operation. (4) The copper sulfide roughing tailings are subjected to copper sulfide scavenging to obtain copper sulfide scavenging concentrate and copper sulfide scavenging tailings; the copper sulfide scavenging concentrate is returned to the copper sulfide roughing process. The copper sulfide scavenging is a primary process; the resulting concentrate is the copper sulfide scavenging concentrate, and the resulting tailings are the copper sulfide scavenging tailings; The copper sulfide scavenging process uses a collector (pentyl xanthate, dosage 10 g / t). (5) The copper sulfide scavenging tailings are subjected to copper oxide flotation to obtain copper oxide concentrate and copper oxide flotation tailings; The copper oxide flotation includes copper oxide roughing and copper oxide scavenging. The copper oxide roughing is two-stage, and the copper oxide scavenging is one-stage. The concentrates from each stage of copper oxide flotation are combined to form the copper oxide concentrate. The tailings from the last stage of copper oxide flotation are the copper oxide flotation tailings. The tailings from other stages of copper oxide flotation are sent to the next stage of operation. The first-stage roughing of copper oxide uses a sulfiding agent (sodium hydrosulfide, 1200 g / t), a collector (pentyl xanthate, 120 g / t), and a foaming agent (pine oil, 10 g / t). The second-stage roughing of copper oxide uses a sulfiding agent (sodium hydrosulfide, dosage 600 g / t) and a collector (pentyl xanthate, dosage 50 g / t). The copper oxide scavenging process uses a sulfiding agent (sodium hydrosulfide, 600 g / t), a collector (pentyl xanthate, 50 g / t), and a foaming agent (pine oil, 5 g / t). (6) The copper oxide flotation tailings are subjected to cobalt flotation to obtain cobalt concentrate and cobalt flotation tailings; The cobalt flotation includes cobalt roughing and cobalt scavenging. The cobalt roughing is two-stage and the cobalt scavenging is one-stage. The concentrates from each stage of cobalt flotation are combined to form the cobalt concentrate. The tailings from the last stage of cobalt flotation are the cobalt flotation tailings. The tailings from other stages of cobalt flotation are sent to the next stage of operation. The activator used in the cobalt flotation is a combination of copper sulfate and ethylenediamine in a mass ratio of 1:4; The collector used in the cobalt flotation is a combination of black powder and pentyl xanthate in a mass ratio of 1:4. The first stage of cobalt roughing uses an activator (300 g / t), a sulfiding agent (sodium hydrosulfide, 800 g / t), a collector (40 g / t), and a foaming agent (pine oil, 5 g / t). The second stage of cobalt roughing uses an activator (150 g / t), a sulfiding agent (sodium hydrosulfide, 400 g / t), and a collector (35 g / t). The cobalt scavenging process uses an activator (100g / t), a sulfiding agent (sodium hydrosulfide, 400g / t), a collector (30g / t), and a foaming agent (pine oil, 5g / t). (7) The cobalt flotation tailings are subjected to magnetic separation to obtain magnetic concentrate, magnetic ore concentrate and magnetic tailings; The magnetic separation includes magnetic roughing, magnetic scavenging, and magnetic cleaning. The tailings from magnetic roughing enter magnetic scavenging, and the concentrates from both magnetic roughing and magnetic scavenging are sent to magnetic cleaning. The concentrate from magnetic cleaning is the magnetic separation concentrate. The tailings from magnetic cleaning are the magnetic separation ore, and the tailings from magnetic scavenging are the magnetic separation tailings. The field strength used for the magnetic coarse separation is 1.2T; the field strength used for the magnetic sweep separation is 1.2T; and the field strength used for the magnetic fine separation is 1.1T.

[0150] Fine ore beneficiation process: (1) Grinding: The fine ore is ground to obtain fine ore slurry. During the grinding process, a sulfiding agent (sodium hydrosulfide, dosage 100g / t) and a collector (a combination of salicylic acid and pentyl xanthate in a mass ratio of 1:4, dosage 120g / t) are added. The particle size of the resulting fine ore slurry is: 62wt% of particles with a particle size of -0.074mm and a slurry concentration of 28wt%. (2) The fine ore slurry is subjected to copper sulfide roughing B to obtain copper sulfide rough concentrate B and copper sulfide roughing tailings B; The copper sulfide roughing process B is a first-stage process; the resulting concentrate is the copper sulfide rough concentrate B, and the resulting tailings are the copper sulfide roughing tailings B; The copper sulfide roughing process B uses a foaming agent (pine oil, dosage 20g / t). (3) The copper sulfide roughing tailings B is subjected to copper sulfide scavenging B to obtain copper sulfide scavenging concentrate B and copper sulfide scavenging tailings B; The copper sulfide scavenging process B is a primary process; the resulting concentrate is the copper sulfide scavenging concentrate B, and the resulting tailings are the copper sulfide scavenging tailings B; The copper sulfide scavenging process B uses a collector (a combination of salicylic acid and pentyl xanthate in a mass ratio of 1:3, at a dosage of 10 g / t) and a foaming agent (pine oil, at a dosage of 5 g / t). (4) The copper sulfide crude concentrate B and the copper sulfide scavenging concentrate B are combined and regrinded to obtain a regrinding slurry; When the copper sulfide crude concentrate B and the copper sulfide scavenging concentrate B are regrinded, hydraulic classification is first performed to grind the large-particle-size sand products into finer particles and combine them to obtain regrinding slurry. The regrinding slurry has the following particle size distribution: -0.074 mm particles account for 75 wt%; the slurry concentration is 67 wt%. (5) The regrinding slurry is subjected to copper sulfide beneficiation B to obtain copper sulfide concentrate B and copper sulfide beneficiation tailings B; the obtained copper sulfide beneficiation tailings B and copper sulfide scavenging tailings B are combined into beneficiation tailings. The copper sulfide beneficiation process B is divided into four stages; the concentrate from the last stage of copper sulfide beneficiation B is called copper sulfide concentrate B, and the concentrates from other stages of copper sulfide beneficiation B are sent to the next stage of operation; the tailings from the first stage of copper sulfide beneficiation B are called copper sulfide beneficiation tailings B, and the tailings from other stages of copper sulfide beneficiation B are returned to the previous stage of operation. The first-stage copper sulfide beneficiation process (B) uses a clay dispersant (sodium hexametaphosphate, 250 g / t), a collector (a combination of salicylic acid and pentyl xanthate in a mass ratio of 1:3, 20 g / t), and a foaming agent (pine oil, 5 g / t). The second-stage copper sulfide beneficiation process (B) uses a clay dispersant (sodium hexametaphosphate, 120 g / t), a collector (a combination of salicylic acid and pentyl xanthate in a mass ratio of 1:3, 10 g / t), and a foaming agent (pine oil, 2 g / t).

[0151] Concentrate trend: The copper sulfide concentrate obtained from the lump ore portion is roasted and then subjected to wet leaching. The copper oxide concentrate, cobalt concentrate, and magnetically separated concentrate are also subjected to wet leaching. The magnetically separated concentrate is neutralized with the raffinate obtained from the smelting leaching.

[0152] The copper sulfide concentrate B obtained from the fine ore portion was roasted and then subjected to wet leaching, while the sulfur tailings were subjected to wet leaching.

[0153] Comparative Example 3 This comparative example uses the same ore as Example 2.

[0154] In contrast, this comparative example does not divide high-oxidation-rate copper-cobalt ore into lump ore and fine ore, and processes all of them according to the lump ore process. The following are the specific differences from Example 2.

[0155] (1) In the grinding process, a sulfiding agent (sodium hydrosulfide, dosage 120g / t) and a collector (pentyl xanthate, dosage 140g / t) are added during the grinding process; the rest is the same as in Example 2; (2) In the roughing process of copper sulfide, a frother (pine oil, dosage 40 g / t) and a collector (pentyl xanthate, dosage 15 g / t) are used; the rest is the same as in Example 2; (3) The copper sulfide refining process is the same as in Example 2; (4) In the copper sulfide scavenging process, a frother (pine oil, 5 g / t) and a collector (pentyl xanthate, 10 g / t) are used; the rest is the same as in Example 2. (5) In the copper oxide flotation process: The first-stage roughing of copper oxide uses a sulfiding agent (sodium hydrosulfide, 1400 g / t), a collector (pentyl xanthate, 140 g / t), and a foaming agent (pine oil, 15 g / t). The second-stage roughing of copper oxide uses a sulfiding agent (sodium hydrosulfide, dosage 700 g / t) and a collector (pentyl xanthate, dosage 60 g / t). The copper oxide scavenging process uses a sulfiding agent (sodium hydrosulfide, 700 g / t), a collector (pentyl xanthate, 60 g / t), and a foaming agent (pine oil, 5 g / t). Everything else is the same as in Example 2; (6) In the cobalt flotation process: The first stage of cobalt roughing uses an activator (400 g / t), a sulfiding agent (sodium hydrosulfide, 1000 g / t), a collector (70 g / t), and a foaming agent (pine oil, 5 g / t). The second stage of cobalt roughing uses an activator (200 g / t), a sulfiding agent (sodium hydrosulfide, 500 g / t), and a collector (40 g / t). The cobalt scavenging process uses an activator (150 g / t), a sulfiding agent (sodium hydrosulfide, 500 g / t), a collector (35 g / t), and a foaming agent (pine oil, 5 g / t). Everything else is the same as in Example 2; (7) The magnetic separation process is the same as in Example 2.

[0156] Comparative Example 4 This comparative example uses the same ore as Example 2.

[0157] In contrast, this comparative example does not separate high-oxidation-rate copper-cobalt ore into lump ore and fine ore, but processes it entirely according to the fine ore process. The following are the specific differences from Example 2.

[0158] (1) In the grinding process, a sulfiding agent (sodium hydrosulfide, dosage 120g / t) and a collector (a combination of salicylic acid and pentyl xanthate in a mass ratio of 1:3, dosage 140g / t) are added during the grinding process; other aspects are the same as in Example 2; (2) In the rough selection B process of copper sulfide, a foaming agent (pine oil, dosage 30g / t) is used; otherwise, it is the same as in Example 2; (3) In the copper sulfide scavenging process B, the collector (a combination of salicylic acid and pentyl xanthate in a mass ratio of 1:3, with a dosage of 25 g / t) and the foaming agent (pine oil, with a dosage of 5 g / t) are used; the rest is the same as in Example 2; (4) The regrinding process is the same as in Example 2; (5) In the copper sulfide beneficiation process B: The first-stage copper sulfide beneficiation process (B) uses a clay dispersant (sodium hexametaphosphate, 200 g / t), a collector (a combination of salicylic acid and pentyl xanthate in a mass ratio of 1:3, 25 g / t), and a foaming agent (pine oil, 5 g / t). The second-stage copper sulfide beneficiation process (B) uses a clay dispersant (sodium hexametaphosphate, 100 g / t), a collector (a combination of salicylic acid and pentyl xanthate in a mass ratio of 1:3, 15 g / t), and a foaming agent (pine oil, 3 g / t). Everything else is the same as in Example 2.

[0159] The experimental results of Example 2, Comparative Example 3, and Comparative Example 4 are shown in Table 1. Table 2 shows that the recovery rate of lump ore beneficiation in Example 2 was 78.99%; the consumption of sulfiding agent was 4.1 kg / t, and the consumption of collector was 0.46 kg / t; the recovery rate of mixed ore beneficiation in Comparative Example 3, which did not distinguish between lump ore and fine ore, was 65.31%; while the recovery rate of Comparative Example 3 decreased, the amount of flotation reagents increased, with a sulfiding agent consumption of 4.92 kg / t and a collector consumption of 0.57 kg / t. The recovery rate of fine ore beneficiation in Comparative Example 3 was approximately 61%. This indicates that using lump ore beneficiation technology after fine ore enters the lump ore group worsens the flotation effect and consumes more flotation reagents.

[0160] In Example 2, the copper oxide concentrate, cobalt concentrate, and magnetic separation concentrate obtained from the lump ore portion underwent wet leaching, with an acid consumption of approximately 5.6 tons of acid per ton of copper. The sulfur tailings obtained from the fine ore portion of Example 2 underwent wet leaching, with an acid consumption of approximately 3.15 tons of acid per ton of copper. The acid consumption for leaching the concentrate obtained in Comparative Example 3 was approximately 4.85 tons of acid per ton of copper, and the acid consumption for leaching the sulfur tailings obtained in Comparative Example 4 was approximately 10.88 tons of acid per ton of copper (the acid consumption for copper sulfide roasted ore was very low and negligible). It is evident that dividing high-oxidation-rate copper-cobalt ore into lump ore and fine ore, and using the invented combined beneficiation and smelting process, improves the beneficiation recovery rate, reduces the consumption of flotation reagents, and reduces leaching acid consumption.

[0161] Table 2. Results of mineral processing tests in Example 2, Comparative Example 3, and Comparative Example 4

[0162] Comparative Example 5 This comparative example uses the same raw ore, lump ore, and fine ore as Example 1.

[0163] Compared with Example 1, this comparative example also divides high-oxidation-rate copper-cobalt ore into lump ore and fine ore, and processes them according to the beneficiation and smelting processes for lump ore and fine ore respectively. However, some process parameters are different, mainly cobalt flotation, magnetic separation, copper sulfide scavenging B and copper sulfide beneficiation B. The specific differences from Example 1 are as follows.

[0164] Lump ore beneficiation process: (1) The grinding process is the same as in Example 1; (2) The roughing process for copper sulfide is the same as in Example 1; (3) The copper sulfide beneficiation process is the same as in Example 1; (4) The copper sulfide scavenging process is the same as in Example 1; (5) The copper oxide flotation process is the same as in Example 1; (6) In the cobalt flotation process, the collector used is pentyl xanthate, and no activator is used; otherwise, it is the same as in Example 1. (7) In the magnetic separation process, the tailings from magnetic separation (the tailings from magnetic separation in Example 1) and the tailings from magnetic sweeping are combined into magnetic separation tailings, and the rest is the same as in Example 1; Fine ore beneficiation process: (1) The grinding process is the same as in Example 1; (2) The rough selection process B for copper sulfide is the same as in Example 1; (3) In the copper sulfide scavenging process B, the collector used is pentyl xanthate; otherwise, it is the same as in Example 1. (4) The regrinding process is the same as in Example 1; (5) In the copper sulfide beneficiation process B, the collector used is pentyl xanthate, and no slime dispersant is used; otherwise, it is the same as in Example 1.

[0165] The experimental results of Comparative Example 5 are shown in Table 3. When pentyl xanthate was used as the cobalt flotation collector and no activator was used, the total copper recovery rate was 78.57%. Comparing Tables 1 and 3, it can be seen that Example 1, which used a combination collector and activator to enhance cobalt flotation, significantly improved the beneficiation indicators, with a total copper recovery rate of 84.06% (even after removing the magnetically separated ore, the total copper recovery rate reached 82.59%). In addition, since the acid consumption of magnetically separated ore is high (approximately 18 tons of acid per ton of copper, resulting in poor smelting economic benefits), neutralizing the magnetically separated ore with the raffinate obtained from smelting leaching not only avoids additional acid consumption but also achieves a 70% recovery rate for this portion of magnetically separated ore. For fine ore, after using a combination collector and slime dispersant, some difficult-to-beneficiate copper sulfide minerals (copper sulfide concentrate B) in the fine ore were recovered, and the beneficiation recovery rate was improved.

[0166] Table 3 Results of mineral processing tests in Comparative Example 5

[0167] Comparative Example 6 This comparative example uses the same ore as Comparative Example 3.

[0168] Compared with Comparative Example 3, this comparative example also does not divide high-oxidation-rate copper-cobalt ore into lump ore and fine ore, and processes them all according to the lump ore process. However, some process parameters are different, mainly cobalt flotation and magnetic separation. The specific differences from Comparative Example 3 are as follows.

[0169] (1) The grinding process is the same as that in Comparative Example 3; (2) The roughing process of copper sulfide is the same as that of Comparative Example 3; (3) The copper sulfide beneficiation process is the same as that in Comparative Example 3; (4) The copper sulfide scavenging process is the same as that in Comparative Example 3; (5) The copper oxide flotation process is the same as that in Comparative Example 3; (6) In the cobalt flotation process, the collector used is pentyl xanthate, and no activator is used; otherwise, it is the same as Comparative Example 1. (7) In the magnetic separation process, the tailings from magnetic separation (magnetically separated tailings in Comparative Example 3) and the tailings from magnetic sweeping are combined into magnetic separation tailings, and the rest is the same as in Comparative Example 3.

[0170] Comparative Example 7 This comparative example uses the same ore as Comparative Example 4.

[0171] Compared with Comparative Example 4, this comparative example also does not divide high-oxidation-rate copper-cobalt ore into lump ore and fine ore, and processes them all according to the fine ore process. However, some process parameters are different, mainly copper sulfide scavenging B and copper sulfide beneficiation B. The specific differences from Comparative Example 4 are as follows.

[0172] (1) The grinding process is the same as that in Comparative Example 4; (2) The rough selection process B for copper sulfide is the same as that in Comparative Example 4; (3) In the copper sulfide scavenging process B, the collector used is pentyl xanthate; the rest is the same as in Comparative Example 4; (4) The regrinding process is the same as in Comparative Example 4; (5) In the copper sulfide beneficiation process B, the collector used is pentyl xanthate, and no slime dispersant is used; otherwise, it is consistent with Comparative Example 4.

[0173] The experimental results of Comparative Examples 6 and 7 are shown in Table 4. Comparing Tables 1 and 4, it can be seen that for high-oxidation-rate copper-cobalt ores that are a mixture of lump ore and fine ore, the beneficiation recovery rate of lump ore was improved by using a combination of collectors and slime dispersants. In the fine ore process, some difficult-to-process copper sulfide minerals were recovered, resulting in an improved beneficiation recovery rate.

[0174] Table 4. Results of mineral processing tests in Comparative Examples 6 and 7

[0175] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A combined process of high oxidation rate copper-cobalt ore separation and smelting, characterized in that, The raw ore is divided into lump ore and powder ore, the particle size of the powder ore is below 250 mm, and the particle size of the lump ore is above 250 mm; The lump ore is ground to obtain a lump ore slurry, and a sulfidizing agent and a collector are added during the grinding of the lump ore; the lump ore slurry is subjected to copper sulfide roughing to obtain copper sulfide rough concentrate and copper sulfide roughing tailings; the copper sulfide rough concentrate is subjected to copper sulfide cleaning to obtain copper sulfide concentrate and copper sulfide cleaning tailings; the copper sulfide roughing tailings are subjected to copper sulfide scavenging to obtain copper sulfide scavenging concentrate and copper sulfide scavenging tailings; the copper sulfide cleaning tailings and / or the copper sulfide scavenging concentrate are returned to the copper sulfide roughing; The copper sulfide scavenging tailings are subjected to copper oxide flotation to obtain copper oxide concentrate and copper oxide flotation tailings; the copper oxide flotation tailings are subjected to cobalt flotation to obtain cobalt concentrate and cobalt flotation tailings; the cobalt flotation tailings are subjected to magnetic separation to obtain magnetic separation concentrate, magnetic separation middlings and magnetic separation tailings; The powder ore is ground to obtain a powder ore slurry, and a sulfidizing agent and a collector are added during the grinding of the powder ore; the powder ore slurry is subjected to copper sulfide roughing B to obtain copper sulfide rough concentrate B and copper sulfide roughing tailings B; the copper sulfide roughing tailings B are subjected to copper sulfide scavenging B to obtain copper sulfide scavenging concentrate B and copper sulfide scavenging tailings B; the copper sulfide rough concentrate B and / or the copper sulfide scavenging concentrate B are subjected to regrinding to obtain a regrinding slurry; the regrinding slurry is subjected to copper sulfide cleaning B to obtain copper sulfide concentrate B and copper sulfide cleaning tailings B; the copper sulfide scavenging tailings B and the copper sulfide cleaning tailings B are sulfur separation tailings; The obtained copper sulfide concentrate and / or copper sulfide concentrate B are roasted and then subjected to wet leaching; one or more of the obtained copper oxide concentrate, cobalt concentrate, magnetic separation concentrate and sulfur separation tailings is subjected to wet leaching; the obtained magnetic separation middlings are neutralized with the raffinate obtained by smelting leaching; The copper grade of the raw ore is 1wt%-4wt%, the cobalt grade is 0.05wt%-1wt%, and the oxidation rate is 60wt%-100wt%; the particle size of the lump ore slurry is that the particle size of -0.074mm accounts for 70wt%-80wt%; the particle size of the powder ore slurry is that the particle size of -0.074mm accounts for 58wt%-68wt%; the particle size of the regrinding slurry is that the particle size of -0.074mm accounts for 70wt%-80wt%.

2. The process according to claim 1, characterized in that, The particle size of the lump ore slurry is that the particle size of -0.074mm accounts for 73wt%-78wt%; the pulp concentration of the lump ore slurry is 28wt%-36wt%; the sulfidizing agent is added at 20g / t-400g / t, and the collector is added at 40g / t-500g / t during the grinding of the lump ore.

3. The high-oxidation-rate copper-cobalt ore quality separation and flow separation combined process method according to claim 1 or 2, characterized in that: The copper sulfide roughing includes one or more than two stages; the concentrate of each stage of copper sulfide roughing is the copper sulfide rough concentrate, the tailings of the last stage of copper sulfide roughing is the copper sulfide roughing tailings, and the tailings of other stages of copper sulfide roughing are sent to the next stage of operation; The copper sulfide concentration includes one or more than two stages; the concentrate of the last stage of copper sulfide concentration is the copper sulfide concentrate, and the concentrate of each stage of copper sulfide concentration is sent to the next stage; the tailings of the first stage of copper sulfide concentration is the copper sulfide concentration tailings, and the tailings of each stage of copper sulfide concentration is returned to the previous stage; The copper sulfide concentration includes one or more than two stages; the concentrate of the last stage of copper sulfide concentration is the copper sulfide concentrate, and the concentrate of each stage of copper sulfide concentration is sent to the next stage; the tailings of the first stage of copper sulfide concentration is the copper sulfide concentration tailings, and the tailings of each stage of copper sulfide concentration is returned to the previous stage; The collector and the frother are used in the copper sulfide roughing; The dosage of the collector is less than or equal to 40 g / t, and the dosage of the frother is 15 g / t to 130 g / t in the copper sulfide roughing; The collector and the frother are used in the copper sulfide roughing; The dosage of the collector is less than or equal to 25 g / t, and the dosage of the frother is less than or equal to 25 g / t in the copper sulfide roughing.

4. The process of combined separation and smelting of high oxidation rate copper-cobalt ores according to claim 1 or 2, characterized in that, The copper sulfide concentration includes one or more than two stages; the concentrate of the last stage of copper sulfide concentration is the copper sulfide concentrate, and the concentrate of each stage of copper sulfide concentration is sent to the next stage; the tailings of the first stage of copper sulfide concentration is the copper sulfide concentration tailings, and the tailings of each stage of copper sulfide concentration is returned to the previous stage; The sulfidizing agent, the collector and the frother are used in the copper sulfide roughing; The dosage of the sulfidizing agent is 650 g / t to 6000 g / t, the dosage of the collector is 55 g / t to 600 g / t, and the dosage of the frother is 10 g / t to 55 g / t in the copper sulfide roughing; The sulfidizing agent, the collector and the frother are used in the copper sulfide roughing; The dosage of the sulfidizing agent is 150 g / t to 1500 g / t, the dosage of the collector is 15 g / t to 150 g / t, and the dosage of the frother is less than or equal to 15 g / t in the copper sulfide roughing.

5. The process of combined separation and smelting of high oxidation rate copper-cobalt ores according to claim 1 or 2, characterized in that, The copper sulfide concentration includes one or more than two stages; the concentrate of the last stage of copper sulfide concentration is the copper sulfide concentrate, and the concentrate of each stage of copper sulfide concentration is sent to the next stage; the tailings of the first stage of copper sulfide concentration is the copper sulfide concentration tailings, and the tailings of each stage of copper sulfide concentration is returned to the previous stage; The activator, the sulfidizing agent, the collector and the frother are used in the copper sulfide roughing; The dosage of the activator is 150 g / t to 1200 g / t, the dosage of the sulfidizing agent is 250 g / t to 3500 g / t, the dosage of the collector is 40 g / t to 350 g / t, and the dosage of the frother is less than or equal to 30 g / t in the copper sulfide roughing; The activator, the sulfidizing agent, the collector and the frother are used in the copper sulfide roughing; The dosage of the activator is 30 g / t to 300 g / t, the dosage of the sulfidizing agent is 100 g / t to 1500 g / t, the dosage of the collector is 10 g / t to 150 g / t, and the dosage of the frother is less than or equal to 15 g / t in the copper sulfide roughing.

6. The process of combined separation and smelting of high oxidation rate copper-cobalt ores according to claim 1 or 2, characterized in that, The copper sulfide concentration includes one or more than two stages; the concentrate of the last stage of copper sulfide concentration is the copper sulfide concentrate, and the concentrate of each stage of copper sulfide concentration is sent to the next stage; the tailings of the first stage of copper sulfide concentration is the copper sulfide concentration tailings, and the tailings of each stage of copper sulfide concentration is returned to the previous stage; The field strength used in the magnetic roughing is 0.8T~1.4T; the field strength used in the magnetic sweeping is 0.8T~1.4T; the field strength used in the magnetic cleaning is 0.8T~1.4T. 7.The high-oxidation-rate copper-cobalt ore separate-quality-dividing and combined beneficiation-metallurgy process method according to any one of claims 1-6, characterized in that: The collector used in the cobalt flotation comprises a combination of sodium diethyl dithiocarbamate and amyl xanthate at a mass ratio of 1:3-8; The activator used in the cobalt flotation comprises a combination of soluble copper salt and ethylenediamine at a mass ratio of 1:1-4.

8. The process of combined separation and smelting of high oxidation rate copper-cobalt ore according to claim 1, characterized in that, The particle size of the fine ore slurry is that the particle size of -0.074mm accounts for 60wt%-65wt%; the slurry concentration of the fine ore slurry is 60wt%-75wt%; and the grinding process of the fine ore adds sulfidizing agent 20g / t-400g / t and collector 40g / t-500g / t; The particle size of the regrinding slurry is that the particle size of -0.074mm accounts for 73wt%-78wt%; the slurry concentration of the regrinding slurry is 60wt%-75wt%.

9. The process of combined separation and smelting of high oxidation rate copper-cobalt ores according to claims 1 or 8, characterized in that: The copper sulfide roughing B comprises one or more than two stages; the concentrate of each stage of the copper sulfide roughing B is the copper sulfide rough concentrate B, the tailings of the last stage of the copper sulfide roughing B is the copper sulfide roughing tailings B, and the tailings of other stages of the copper sulfide roughing B are sent to the next stage; The copper sulfide sweeping B comprises one or more than two stages; the concentrate of each stage of the copper sulfide sweeping B is the copper sulfide sweeping concentrate B, the tailings of the last stage of the copper sulfide sweeping B is the copper sulfide sweeping tailings B, and the tailings of other stages of the copper sulfide sweeping B are sent to the next stage; The copper sulfide cleaning B comprises one or more than two stages; the concentrate of the last stage of the copper sulfide cleaning B is the copper sulfide concentrate B, the concentrate of other stages of the copper sulfide cleaning B is sent to the next stage; the tailings of the first stage of the copper sulfide cleaning B is the copper sulfide cleaning tailings B, and the tailings of other stages of the copper sulfide cleaning B are returned to the previous stage; The copper sulfide roughing B uses collector and frother; The dosage of the collector in the copper sulfide roughing B is 40g / t or less, and the dosage of the frother is 15g / t-130g / t; The copper sulfide sweeping B uses collector and frother; The dosage of the collector in the copper sulfide sweeping B is 25g / t or less, and the dosage of the frother is 25g / t or less; The copper sulfide cleaning B uses slime dispersant, collector and frother; The dosage of the slime dispersant in the copper sulfide cleaning B is 50g / t-1500g / t; the dosage of the collector in the copper sulfide cleaning B is 65g / t or less; and the dosage of the frother in the copper sulfide cleaning B is 65g / t or less. 10.The high-oxidation-rate copper-cobalt ore separate-quality-dividing and combined beneficiation-metallurgy process method according to any one of claims 1, 8 and 9, characterized in that: The collector added in the grinding process of the fine ore comprises a combination of salicylhydroxamic acid and amyl xanthate at a mass ratio of 1:2-7; The collector used in the copper sulfide roughing B comprises a combination of salicylhydroxamic acid and amyl xanthate at a mass ratio of 1:2-7; The copper sulfide scavenging B uses the collector including the combination of salicylhydroxamic acid and amyl xanthate with the mass ratio of 1:2-7; The copper sulfide scavenging B uses the collector including the combination of salicylhydroxamic acid and amyl xanthate with the mass ratio of 1:2-7; The copper sulfide scavenging B uses the collector including the combination of salicylhydroxamic acid and amyl xanthate with the mass ratio of 1:2-7;

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