76results about How to "Reduce flotation costs" patented technology

The invention discloses a method for the dressing, desilicication and desulfuration of sulfur-containing bauxite, which relates to a method for the dressing, desilicication and desulfuration of low-quality sulfur-containing bauxite and is characterized in that: a dressing process to mill the sulfur-containing bauxite, regulate the pH to 3 to 6 by using sulfuric acid, add an inhibitor, an activator, a silicate mineral collector and a sulfur-containing gangue collector in turn, stir, perform size mixing and perform flotation; and after flotation, the silicate minerals and sulfur-containing gangue in a major part of the sulfur-containing bauxite are enriched in foam as tailings, and the ore pulp obtained after flotation is used as concentrate. When the method disclosed by the invention is used, the synchronous dressing, desulfuration and desilicication of the sulfur-containing bauxite can be realized quickly. The method has the characteristics of short flow and simple process.

The invention relates to the field of coal slurry mixing and flotation treatment, and specifically relates to swinging-stirring flotation equipment with a self-slurry-mixing function. The swinging-stirring flotation equipment disclosed by the invention at least comprises a flotation cell, wherein a micro-bubble generation bed is arranged in the flotation cell; the micro-bubble generation bed comprises micro-bubble tubes; and a connection arm is arranged at each of the two ends of each micro-bubble tube to fix the co-end part of the micro-bubble tube. The equipment further comprises a gas pipeline, wherein the gas pipeline is communicated with the tube cavity of each micro-bubble tube through a prearranged gas channel in the corresponding connection arm; and micro-bubble generation holes used for ejecting a gas are densely distributed in the tube wall of each micro-bubble tube. The equipment further comprises power arms, wherein the two power arms are provided, and symmetrically arranged at the two sides of the micro-bubble generation bed; and a stirring baffle extends from the bottommost end of each micro-bubble tube, and the surface of each stirring baffle is vertical to the swinging direction of the micro-bubble generation bed. The equipment disclosed by the invention has the advantages of being great in micro-bubble flotation effect, easier in bubble mineralization, free from flotation 'dead areas' in the flotation cell, and more stable in foam layer; and the working efficiency and the flotation effect can both be effectively ensured.

The present invention relates to a mineral processing technology and method for refractory chalcopyrite ores, particularly to a mineral processing technology and method for the separation of chalcopyrite from multiple natural types of copper ores containing chalcopyrite, pyrrhotite, talc and serpentine, which belongs to the technical field of mineral processing. It's characterized by: conducting a two-stage grinding on the chalcopyrite ore, with each grinding stage followed by size grading, and treating ores in different size fractions separately, wherein coarse-grain ores are separated in the presence of xanthate, with calcium oxide and CMC controlling the pH and acting as depressor respectively, while fine-grained ores are subjected to rougher in the presence of kerosene, and subsequently subjected to cleaner in the presence of xanthate.

The invention discloses a floatation method for a silica-calcium collophane with difficult separation. According to the detailed technology, the floatation method includes the steps that (1) breaking and grinding are performed on the silica-calcium collophane; (2), a sulfate mineral negative ion collecting agent, a phosphate mineral negative ion collecting agent and a carbonate mineral negative ion collecting agent are respectively added into ore pulp for mixing and mineralizing, and air inflation is performed for reverse floatation; (3), magnesium removal phosphate ore concentrate is graded; (4), the ore pulp concentration of a coarsely graded phosphate ore concentrate is controlled, then sodium carbonate mineral positive ions and silicate mineral positive ions are respectively added for pulp mixing and mineralizing, and air inflation is performed for reverse floatation; (5), a finely graded phosphate ore concentrate and a desilication phosphate ore concentrate are mixed, and carbonate impurities and silicate impurities are mixed. The problems that because the carbonate impurities are removed only through single reverse floatation, the phosphate ore concentrate is not high in content and high in silicate impurity content, the requirement for the phosphate ore concentrate used for wet-process phosphoric acid can not be met, and then in the process that the silicate impurities are removed through reverse floatation, floatation froth is sticky, not prone to breaking and poor in ore pulp flowability due to the existence of a great deal of slurry are solved, and the floatation method is adaptive to the silica-calcium collophane and efficient in impurity removal.

The invention discloses a low-cost deironing quality-improving beneficiation method for high-impurity-content feldspar quarry. Inferior fine magnetite concentrates of low-intensity magnetic separation operation are divided into four fractions through grading operation of three times, and the concentrates of the coarse fraction of grading operation of the first time are directly thrown out as tailings (3). Rough flotation, fine flotation and the high-intensity magnetic separation process are adopted on the concentrates of the rough fraction of grading operation of the second time. The concentrates of the fine fraction of grading operation of the second time are graded through grading of the third time, and rough flotation, fine flotation and the high-intensity magnetic separation process are adopted on the concentrates of the rough fraction of grading operation of the third time. High-intensity magnetic separation operation is directly carried out on the concentrates of the fine fraction of grading operation of the third time to obtain concentrates (3). The grading treatment process is adopted, and products of different qualities and purposes can be obtained according to different purposes. The particle size of products of all fractions after grading is concentrated, few flotation reagents are adopted, and the flotation cost is low. The productivity and ferric oxide recycling rate of grading flotation are high, and all flotation indexes are good. The deironing beneficiation process for feldspar is good in applicability, and can be used for grading various types of feldspar quarry.

The invention provides a floatation separation technology of refractory lead-zinc sulphide ores. The floatation separation technology comprises the steps that rough grinding is conducted on the lead-zinc sulphide ores, a pH regulator, a collector and a foaming agent are added, so that lead-zinc bulk floatation is conducted and lead-zinc bulk concentrates are obtained; and fine grinding is conducted on the lead-zinc bulk concentrates, a pH regulator, an electric potential regulator, an inhibitor and the like are added, so that lead ore floatation is conducted and lead concentrates are obtained,in the process, an electric potential of ore pulp is adjusted to be 210-350 mv by the electric potential regulator, and a pH value of the ore pulp is adjusted to be 9-11 by the pH regulator. A pH regulator, an activating agent and the like are added into lead ore floatation tailings, zinc ore floatation is conducted, and zinc concentrates and zinc ore floatation tailings are obtained. The lead-zinc floatation separation difficulty is reduced by adding the electric potential regulator, meanwhile waste water produced at various floatation stages is separated and independently recovered, the floatation separation technology is suitable for floatation separation of the lead concentrates and the zinc concentrates with high grades and recovery rates at low production cost from the refractory lead-zinc ores which are low in lead content and high in zinc content, and the application prospect is good.

The invention relates to a hematite low temperature flotation agent and a preparation method thereof; the agent is the water solution of 2-hydroxyl-5-alkyl-sodium benzoic acid ammonium salt and sodium aliphatate in a ratio of 1:1-3 and the concentration of each solute is not less than 0.02mol/L. The preparation method comprises the following steps: preparing sodium aliphatate solution, preparing hematite collector 2-hydroxyl-5-alkyl-sodium benzoic acid ammonium salt solution, and then mixing the two solutions. The agent can be used for hematite roughing, the dosage is 0.01-0.18% of hematite and the flotation temperature is 20-30 DEG C. the preparation method of the invention has simple method, non-toxic and sate raw materials and stable chemical compositions and properties of the preparedflotation agent.

The process of producing zinc concentrate and lead concentrate with zinc oxide and zinc slag includes the following steps: grinding material to granularity of 0.1-1mm, leaching in strong alkaline solution, stirring at 10-100deg.c for 60-100 min to leach out zinc and lead from the material; filtering, water washing filter residue, and producing slag brick or land filling of filter residue; adding precipitant in 0.5-3 times the lead content, stirring for 60 min, and filtering to obtain lead concentrate; adding precipitant in the amount of 0.5-5 times zinc content, stirring at 10-100 for 1-5 hr and filtering to obtain zinc concentrate; and returning filtrate and washing water for reuse. The present invention has simple technological process, low production cost and no environmental pollution, and can utilize zinc and lead resource, especially low grade resource, effectively.

The invention discloses a coal dressing composite reagent and a preparing method thereof. Raw materials used in the preparing method of the coal dressing composite reagent include, by mass percent, 65% of arene residual liquid, 15% of butanol and octanol residual liquid, 5% of light diesel oil, 1%-5% of an emulsifying agent and 10%-14% of water. The manufacturing method of the coal dressing composite reagent comprises the following steps that the arene residual liquid, the butanol and octanol residual liquid and the light diesel oil are mixed according to a required proportion and put into a reaction kettle with a stirring function, stirring is conducted for 30 min, and mixed oil liquid is formed; and the emulsifying agent and the water are mixed according to a required proportion, a mixed solution of the emulsifying agent and the water is obtained, the mixed solution of the emulsifying agent and the water is added to the obtained mixed oil liquid under the stirring condition at the stirring rate of 100 rmp, and stirring is conducted continuously till the solution is brown. Selectivity of hydrocarbon oil on cleaned coal can be improved through the coal dressing composite reagent, a floatation effect is improved, the floatation cost is saved, in addition, products high in additional value are produced by reasonably utilizing the arene residual liquid, and very good economic benefits and social benefits are achieved; and meanwhile the beneficial effects of facilitating energy saving and emission reducing, improving the economic benefits and the like are achieved.

The invention provides a method for removing titanium minerals in high-sulfur bauxite, and the method comprises the following steps: crushing and grinding high-sulfur bauxite raw ore to obtain ore pulp, and adding an activating agent, a desulfurization collecting agent and a foaming agent to perform sulfur mineral flotation to allow sulfur minerals to float upwards to obtain desulfurized aluminumconcentrate; and grinding the aluminum concentrate again, adding an adjusting agent and a composite titanium removal collecting agent for titanium mineral flotation to allow the titanium minerals to float upwards and separate to can be removed. According to the method for removing the titanium minerals in the high-sulfur bauxite, an asynchronous reverse flotation method is adopted for treating thehigh-sulfur bauxite, the sulfur minerals and the titanium minerals are removed respectively, the content of the titanium minerals in the bauxite is reduced, harm of the titanium minerals in the subsequent Bayer process dissolution process is reduced, and efficient utilization of high-sulfur bauxite resources can be achieved.

The invention discloses a method for preparing a low-rank coal slime bipolar collecting agent through modification of hydrocarbon-type oil. The bipolar collecting agent is formed through reaction of the hydrocarbon-type oil and air. The preparing process comprises the following steps that 1, the conventional hydrocarbon-type oil is fed into a low-temperature plasma reaction chamber; 2, a reactionchamber body is placed in an oscillator for 3-5 min, and medicament is evenly distributed in the reaction chamber; 3, air with the quantity of flow being 30 L/(min.m<2>) is led into a plasma reactor;4, the low-temperature plasma reactor is started to make the hydrocarbon-type oil react with the air for 5-10 min; 5, the low-temperature plasma reactor is shut down; and 6, air leading is stopped, reaction products are taken out of the reactor, and the bipolar collecting agent is prepared. The method for preparing the low-rank coal slime bipolar collecting agent through modification of the hydrocarbon-type oil has the advantages that the preparation method is simple, raw materials are easy to get, the process is efficient, and the medicament property is stable by taking chemical change as priority; and by using the collecting agent prepared through the method, the low-rank coal slime flotation clean coal productivity can be greatly improved under the same medicament dosage.

The invention belongs to the technical field of mineral processing, and particularly relates to a multi-polar-group non-vulcanized ore flotation combined collecting agent and a preparation and use method thereof. The multi-polar-group non-vulcanized ore flotation combined collecting agent is prepared from the following components in mass percentage: 82-94% of 1-octoxyl 5-carboxyl para-decyl amine, 3-9% of alpha-bromo-octanoic acid and 3-9% of 3-octoxyl propylamine. The multi-polar-group non-vulcanized ore flotation combined collecting agent disclosed by the invention is used for reverse flotation of quartz with hematite iron ore, direct flotation of CaF2 with fluorite ore and direct flotation of apatite with phosphorite, is good in selectivity and high in collecting performance, and can realize effective separation of target minerals from other minerals.

The invention discloses a coal flotation capsule slow-release collecting agent as well as a preparation method and application thereof. The collecting agent comprises a collecting agent, a functional agent and an emulsifier, wherein the collecting agent comprises the following components: diesel oil, pine oil and oleic acid ester; the functional medicament is formed by mixing a water glass solution and a sulfuric acid solution in proportion; and the emulsifier is a nonionic surfactant. Compared with a conventional collecting agent, the capsule slow-release collecting agent is of a special capsule structure and has the dual effects of collecting and selective inhibition; when a collecting agent capsule shell acts on a coal molecule hydrophobic point, an original capsule structure collapses, an inhibitor component of a capsule inner core is released, and when a collecting agent does not act on coal molecules, an inhibitor is temporarily sealed and stored by the collecting agent. And due to slow release of the inhibitor, excessive consumption in a short time is avoided, the problem that the inhibition effect becomes poor along with reduction of the concentration of the inhibitor is solved, and the capsule slow-release collecting agent is higher in selectivity and has a wide application prospect.