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Talc and serpentine inhibitor and beneficiation method applying inhibitor

A beneficiation method and inhibitor technology, which are applied in flotation, solid separation and other directions, can solve the problems of worsening flotation indicators, reducing the quality of useful mineral concentrates in sulfide ore, and the adverse effects of concentrate filtration and tailings concentration. The effect of good operability, improved quality and strong adaptability

Inactive Publication Date: 2014-11-05
BEIJING GENERAL RES INST OF MINING & METALLURGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Second, in the flotation process, the buoyancy of talc and serpentine often exceeds that of the associated sulfide ore, which has a great negative impact on the flotation of sulfide ore and greatly reduces the usefulness of sulfide ore. Quality of Mineral Concentrates
[0005] Third, in the flotation process, talc and serpentine are easy to muddy, which will seriously deteriorate the flotation index
[0006] In the prior art, the beneficiation process of sulfide ore usually selects sodium carboxymethyl cellulose (CMC), high molecular weight organic matter such as guar gum, water glass, sodium hexametaphosphate or their combination as the inhibitor of talc and serpentine. However, these inhibitors also have an inhibitory effect on the useful minerals in sulfide ore, so this not only reduces the concentrate grade of useful minerals and the recovery rate of useful minerals, but also causes great disadvantages to concentrate filtration and tailings concentration influences

Method used

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  • Talc and serpentine inhibitor and beneficiation method applying inhibitor
  • Talc and serpentine inhibitor and beneficiation method applying inhibitor
  • Talc and serpentine inhibitor and beneficiation method applying inhibitor

Examples

Experimental program
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Effect test

Embodiment 1

[0034] In a copper-nickel sulfide ore, by weight percentage, the content of pentlandite is 2.2%, the content of chalcopyrite is 0.34%, the content of serpentine is 22.76%, the content of talc is 7.95%, and the content of magnesium oxide is 27.4%. .

[0035] Adopt the flotation method in the prior art to carry out mixed flotation of copper-nickel serpentine talc to the copper-nickel sulfide ore, and add the inhibitor provided by the embodiment of the present invention in the mixed rough concentrate, to the copper-nickel sulfide Pumiceous gangue such as talc and serpentine in the ore can be inhibited; specifically, the inhibitor is formed by mixing 50% to 80% of sodium carbonate and 20% to 50% of zinc sulfate (preferably made of The weight percentage is 60% sodium carbonate and 40% zinc sulfate mixed), and the inhibitor is added to the mixed coarse concentrate according to the ratio of adding 6000 grams per ton of copper-nickel sulfide ore. After three times of beneficiation, t...

Embodiment 2

[0042] In a copper-nickel sulfide ore, by weight percentage, the content of pentlandite is 2.3%, the content of chalcopyrite is 0.53%, the content of serpentine is 9.6%, the content of talc is 12.9%, and the content of magnesium oxide is 25.1%. .

[0043] Adopt the flotation method in the prior art to carry out mixed flotation of copper-nickel serpentine talc to the copper-nickel sulfide ore, and add the inhibitor provided by the embodiment of the present invention in the mixed rough concentrate, to the copper-nickel sulfide Pumiceous gangues such as talc and serpentine in the ore are inhibited; specifically, the inhibitor is mixed with 50% to 80% by weight of potassium carbonate and 20% to 50% of aluminum sulfate (preferably made of The percentage by weight is 60% potassium carbonate and 40% aluminum sulfate mixed), and the inhibitor is added to the mixed coarse concentrate according to the ratio of 5000 grams per ton of copper-nickel sulfide ore. After three times of benefi...

Embodiment 3

[0049] In a copper sulfide ore, by weight percentage, the content of chalcopyrite is 2.61%, the content of serpentine is 7.55%, the content of talc is 5.11%, and the content of magnesium oxide is 4.84%.

[0050] Adopt the flotation method in the prior art to carry out copper serpentine talc mixed flotation to this copper sulfide ore, and add the inhibitor provided by the embodiment of the present invention in the mixed coarse concentrate, to this copper sulfide nickel ore Pumice gangue such as talc and serpentine are inhibited; specifically, the inhibitor is mixed with 50% to 80% potassium carbonate and 20% to 50% aluminum sulfate by weight percentage (preferably by weight percentage It is mixed with 60% potassium carbonate and 40% aluminum sulfate), and the inhibitor is added to the mixed rough concentrate according to the ratio of 2000 grams per ton of copper sulfide ore. After secondary beneficiation, the beneficiation results are shown in Table 4 below.

[0051] Under the...

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Abstract

The invention discloses a talc and serpentine inhibitor containing and a beneficiation method applying the inhibitor. The talc and serpentine inhibitor is formed by mixing the following raw materials, by weight, soluble carbonate 50%-80% and soluble sulfate without copper ions 20%-50%. The beneficiation method applying the inhibitor comprises the step of adding the inhibitor in or pulp, wherein the adding proportion of the inhibitor is 2000-6000 grams per ton of ore pulp. The inhibitor is good in adaptability, can meet the demands of various flotation technologies and can effectively inhibit talc and serpentine under the condition that the inhibitor does not play inhibiting effect on sulfide ores. Therefore, by means of the inhibitor, the quality of valuable mineral concentrates and recovery rate of valuable mineral are improved, and no adverse influence is produced on concentrate filtration and tailing concentration.

Description

technical field [0001] The invention relates to the technical field of mineral processing, in particular to an inhibitor of talc and serpentine in sulfide ore and a mineral processing method using the inhibitor. Background technique [0002] Talc and serpentine are common unwanted minerals in sulfide deposits. They have the following characteristics in sulfide ore: [0003] First, in sulfide deposits, talc and serpentine are widely distributed; but in different sulfide deposits, the content of talc and serpentine fluctuates greatly, for example: molybdenum sulfide ore, copper sulfide ore, nickel sulfide ore, Copper-nickel sulfide ore and lead-zinc sulfide ore are usually associated with talc and serpentine, but their contents are quite different, ranging from about 3% to over 30%. [0004] Second, in the flotation process, the buoyancy of talc and serpentine often exceeds that of the associated sulfide ore, which has a great negative impact on the flotation of sulfide ore ...

Claims

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Application Information

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IPC IPC(8): B03D1/018B03D1/00B03D101/06
Inventor 于传兵李成必胡志凯周少珍宋振国宋磊于洋王荣生
Owner BEIJING GENERAL RES INST OF MINING & METALLURGY