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Beneficiation and metallurgy combined treatment technology for recovering copper of complex copper sulfide ore

A technology for combination of beneficiation and metallurgy and processing technology, applied in the fields of beneficiation and metallurgy, can solve the problems of poor recovery index, unstable foam, easy sludge, etc., and achieve the effects of improving grade, improving selectivity and improving recovery rate.

Active Publication Date: 2017-06-20
有研资源环境技术研究院(北京)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a combined dressing and smelting process for colloidal copper-sulphide ore in the actual production process, which is easy to oxidize, easy to muddy, unstable in the middle ore sequence return foam, and poor recovery index. Greatly reduce the amount of middle ore slime, reduce the concentration of residual chemicals, avoid the impact of water-soluble metal ions on the main process, greatly improve the grade of copper concentrate and the comprehensive recovery rate of copper, reduce the metal grade of tailings, and improve the comprehensive utilization rate of resources

Method used

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  • Beneficiation and metallurgy combined treatment technology for recovering copper of complex copper sulfide ore
  • Beneficiation and metallurgy combined treatment technology for recovering copper of complex copper sulfide ore

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Embodiment 1

[0028] 1. The nature of the raw ore

[0029] A sulfide ore in Tongling, Anhui Province contains 1.65% copper, 28.6% sulfur, and 31.24% iron. The metal minerals mainly include chalcopyrite, colloidal chalcopyrite, copper blue, pyrite, and colloidal pyrite. There are also a small amount of chalcocite, etc.; gangue mainly include quartz, calcite and so on. Metal minerals account for 70.26% of the ore, and gangue accounts for 29.74%. Among them, secondary copper minerals account for 32.5% of the total copper, colloidal chalcopyrite in chalcopyrite accounts for 40%, and colloidal pyrite in pyrite accounts for 35%.

[0030] Two, utilize process of the present invention to handle

[0031] See the process flow figure 1 , the specific process is as follows:

[0032] (1) Grinding the raw ore to -0.074mm accounts for 65%.

[0033] (2) After the ore grinding, one rough, one sweep and two fine operations are carried out to obtain copper concentrate. Among them, the concentration of r...

Embodiment 2

[0044] 1. The nature of the raw ore

[0045] A colloidal copper-sulfur ore in Chifeng, Inner Mongolia, the ore contains 0.88% copper and 18.36% sulfur. The main metal minerals are pyrite, pyrrhotite and arsenopyrite, followed by chalcopyrite, chalcocite and blue chalcocite; gangue minerals are quartz, calcite and chlorite. The ore structure mainly includes dissolution metasomatism and colloid co-precipitation. Metal minerals account for 41.32% of the ore, and gangue accounts for 58.68%. Among them, secondary copper minerals accounted for 36.8% of the total copper, colloidal chalcopyrite in chalcopyrite accounted for 31.9%, and colloidal pyrite in pyrite accounted for 32.6%.

[0046] Two, utilize process of the present invention to process

[0047] See the process flow figure 1 , the specific process is as follows:

[0048] (1) Grinding the raw ore to -0.074mm accounts for 73%.

[0049] (2) After the ore grinding, one rough, one sweep and two fine operations are carried o...

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Abstract

The invention relates to a beneficiation and metallurgy combined treatment technology for recovering copper of complex copper sulfide ore, and aims to provide a flotation-bioleaching combined treatment technology so as to solve the problems that in the practical production process, the gluey copper sulfide ore is prone to oxidization and degradation in water, sequentially returning foam of middling ore is unstable, and the recovery indexes are low. By the adoption of the technology, the quantity of middling ore slurry can be greatly reduced, the concentration of residual agents can be reduced, the influence of water-soluble metal ions on the flotation main process can be avoided, micro-fine particle secondary copper ore which cannot be recovered from the middling ore through flotation is recovered, the grade of copper concentrate and the comprehensive recovery rate of copper are substantially improved, the grade of metal in tailings is reduced, and the comprehensive utilization rate of resources is improved.

Description

technical field [0001] The invention belongs to the technical field of beneficiation and metallurgy, and in particular relates to a combined beneficiation and smelting process for recovering copper from complex copper-sulfur ores. Background technique [0002] my country's copper deposits mainly include porphyry copper deposits, volcanic copper deposits, layered copper deposits, and skarn copper deposits. Generally speaking, copper sulfide ores have good buoyancy. However, since several copper minerals are often contained in the same ore, the copper content, over-crushing phenomenon, interaction with oxygen, collectors, regulators during the flotation process, and the requirements for the optimal pH value of these copper minerals, etc. There are certain differences in all aspects, resulting in different types of copper minerals in the ore, and their buoyancy is also different. Even for the same copper mineral, there are differences in its buoyancy under different media and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B3/18B03D1/00C22B15/00
CPCB03D1/00C22B3/18C22B15/0065Y02P10/20
Inventor 陈勇宋永胜李文娟温建康周桂英
Owner 有研资源环境技术研究院(北京)有限公司
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