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Novel technics of rough-flotation high concentration high-efficient flotation

A high-concentration, new process technology, applied in flotation, solid separation and other directions, can solve the problem of no more research on the separation of sulfide ore and oxide ore, so as to improve flotation efficiency, ensure quality, and improve operation recovery. Effect

Active Publication Date: 2007-12-05
广西华锡矿业有限公司铜坑矿业分公司
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Problems solved by technology

[0014] In the above correlation search, some studies involved the research on cassiterite beneficiation technology, but no more research was done on the mixed flotation of sulfide ore and the separation of sulfide ore and oxide ore under the condition of lean, miscellaneous and fine ore resources.

Method used

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  • Novel technics of rough-flotation high concentration high-efficient flotation
  • Novel technics of rough-flotation high concentration high-efficient flotation

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Embodiment 1

[0039] Mixed flotation feed ore (pulp with a concentration of 45-60%) enters flotation and undergoes four times of roughing, and separates the previous flotation tailings separately, without forming middle ore, and the flotation foam concentrate of four times of roughing Concentrate on selection, in these four rough selections, gradually strengthen the flotation intensity (weak selection with good buoyancy, strong selection with poor buoyancy), increase the dosage (such as xanthate and copper sulfate, concentration 1-2% ) and prolong the flotation time (2 to 5 minutes), that is to say, dosing in stages is intensified sequentially, the time of the four roughings is 2 minutes, 3 minutes, 4 minutes, and 5 minutes in turn, and the amount of medicine (such as xanthate and copper sulfate, etc.) ) and dosing sequence (sulfuric acid→copper sulfate→xanthate→2 # Oil, sulfuric acid, copper sulfate, and xanthate each have a concentration of 1-2%, 2 # The oil is added drop by drop accordi...

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Abstract

The present invention relates to bulk floatation process of different kinds of sulfide mineral. The bulk floatation process includes four times of roughing to separate out the floatation tailing, collecting the foamed concentrate from the four times of roughing and concentrating. During the four times of roughing, the floatation strength, the floatation agent amount and the floatation period are increased gradually, so as to float out different floatable minerals in different floatation steps. The bulk floatation process has enhanced separation between the sulfide minerals and the oxide minerals, raised metal sulfide mineral recovering rate, raised floatation efficiency and capacity of ensuring the recovery of cassiterite in the post operation. The foamed concentrate are further separated in three times of concentration and once scavenging to decrease the entrained cassiterite in the sulfide minerals and raise the quality of sulfide concentrate.

Description

technical field [0001] The invention relates to a non-ferrous metal beneficiation process, in particular to a new process of mixed flotation of various metal sulfide minerals. Background technique [0002] The Dachang ore body in Guangxi is a complex tin-poor polymetallic sulfide ore body. The main oxidized minerals are: cassiterite, zoetite, quartz, calcite, etc. The main metal sulfide minerals are: brittle stimonite, sphalerite ore, pyrrhotite, pyrite, arsenopyrite, chalcopyrite, sphalerite, galena, etc., the practice in the past has been (see Figure 1 in the manual) in the floating operation of sulfide ore, using Conventional agents xanthate, copper sulfate, sulfuric acid, 2 # Oil, through two-stage flotation to complete the mixed flotation of sulfide ore, realize the separation of sulfide ore and oxidized ore, in the first flotation, after a roughing, second selection, and a sweep, most of the sulfide ores are floated out, The remaining primary flotation tailings enter...

Claims

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Application Information

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IPC IPC(8): B03D1/00B03D1/018B03D101/00B03D103/02
Inventor 吴伯增陈建明王熙黄承波王万忠余忠保
Owner 广西华锡矿业有限公司铜坑矿业分公司
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