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Fine grinding and comprehensive recycling beneficiation process of copper-containing sulfur concentrate

A combined process and fine grinding technology, applied in chemical instruments and methods, flotation, wet separation, etc., can solve problems such as difficult to achieve effective recycling of sulfur concentrate, achieve the effect of suppressing pyrite and reducing environmental pollution

Active Publication Date: 2016-02-17
YUNNAN TIN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing technical methods are difficult to realize the effective recycling of the sulfur concentrate produced by the sulfide ore dressing of some enterprises in Gejiu, Yunnan

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The fine grinding and comprehensive recovery and utilization of copper-containing sulfur concentrate ore dressing process are as follows:

[0024] 1) Concentration and graded fine grinding and drug removal: the copper-containing sulfur concentrate is precipitated, concentrated and dehydrated, and then the slurry is adjusted, and then the combined process of small steel forging ratio and high-efficiency long cone cyclone is used for graded fine grinding and drug removal. Dissociate valuable metal mineral monomers, and remove the residual flotation agents in the copper-sulfur concentrate; the grinding concentration of graded fine grinding is 50%, and the graded fineness of grinding γ-200 mesh content is greater than 90%. The selected concentration is 30%; then add inhibitors, including lime 10000g / t, sodium humate 400g / t, pH 10;

[0025] The classification and fine grinding of the combination process of the small steel forging ratio and the high-efficiency long cone cyclo...

Embodiment 2

[0030] The fine grinding and comprehensive recovery and utilization of copper-containing sulfur concentrate ore dressing process are as follows:

[0031] 1) Concentration and graded fine grinding and drug removal: the copper-containing sulfur concentrate is precipitated, concentrated and dehydrated, and then the slurry is adjusted, and then the combined process of small steel forging ratio and high-efficiency long cone cyclone is used for graded fine grinding and drug removal. Dissociate valuable metal mineral monomers, and remove the residual flotation agents in the copper-sulfur concentrate; the grinding concentration of graded fine grinding is 60%, and the graded fineness of grinding grade γ-200 mesh content is more than 90%. The selected concentration is 25%; then add inhibitors, including lime 2000g / t, sodium humate 200g / t, pH 12;

[0032] The classification and fine grinding of the combination process of the small steel forging ratio and the high-efficiency long cone cyc...

Embodiment 3

[0037] The fine grinding and comprehensive recovery and utilization of copper-containing sulfur concentrate ore dressing process are as follows:

[0038] 1) Concentration and graded fine grinding and drug removal: the copper-containing sulfur concentrate is precipitated, concentrated and dehydrated, and then the slurry is adjusted, and then the combined process of small steel forging ratio and high-efficiency long cone cyclone is used for graded fine grinding and drug removal. Dissociate valuable metal mineral monomers and remove the residual flotation reagents in the copper-sulfur concentrate; the grinding concentration of graded fine grinding is 40%, and the graded fineness of grinding grade γ-200 mesh content is more than 90%. The selected concentration is 20%; then add inhibitors for re-inhibition, the inhibitors are lime 12000g / t, sodium humate 600g / t, pH11;

[0039] The classification and fine grinding of the combination process of the small steel forging ratio and the h...

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Abstract

The invention discloses a fine grinding and comprehensive recycling beneficiation process of copper-containing sulfur concentrate. The process comprises the steps of performing concentration, graded fine grinding and reagent removal on copper-containing sulfur concentrate; performing bulk flotation during which one-time rough copper flotation, two-time scavenging and three-time precise copper flotation are carried out, so as to produce a copper rough concentrate product with the copper content of 10% or above; performing wet permanent magnet magnetic separation on the flotation tailings, so as to obtain a high-iron sulfur concentrate product of pyrrhotite with the sulphur content of 33% or above and the iron content of 50% or above; and feeding the tailings of magnetic separation into a two-stage shaking table for gravity separation, separating heavy metal minerals to produce a mixed product of tin, tungsten, bismuth and arsenic valuable metal heavy minerals, and dehydrating the gravity separation tailings to obtain a sulfur concentrate product. The fine grinding and comprehensive recycling beneficiation process is economic and practical, and is relatively low in treatment cost, good in treatment effect, and relatively small in influence to the environment, and the sulfur concentrate produced during sulphide ore beneficiation can be effectively recycled.

Description

technical field [0001] The invention belongs to the technical field of mineral processing, in particular to a recovery and utilization mineral processing technology of copper-sulfur-containing concentrate. Background technique [0002] In the non-ferrous metal beneficiation process, the produced sulfur concentrate is usually a by-product, which contains a variety of valuable metal minerals, and the content and type of valuable metals are different due to the changes in the original ore. At present, sulfur concentrate is mainly used in the production of fertilizers and sulfuric acid, and some enterprises use acid leaching to recover copper to produce copper sulfate, or sell it as iron raw materials. In the field of chemical industry and hydrometallurgy, comprehensive recycling of valuable metal minerals in sulfur concentrates has already been carried out. For example, Chinese patent CN104831062A discloses a method for extracting valuable elements from sulfur concentrates, and...

Claims

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Application Information

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IPC IPC(8): B03B9/00B03B7/00B02C17/10B03C1/02B03D1/018B03D101/04B03D103/02
Inventor 袁经中姚建伟陈明生张汝红杨永林石丽芬赵荣杨权志
Owner YUNNAN TIN
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