Comprehensive treatment method for high-mud content high-combination rate mixed copper ore

A technology of mixed copper ore and comprehensive treatment, which is applied in the comprehensive treatment of copper ore, and the comprehensive treatment of mixed copper ore with high binding rate. For the field with high mud content, it can solve the problems of high cost, large mud content, and large process investment. Achieve the effects of low cost, efficient recycling, and small process investment

Active Publication Date: 2010-12-15
YUNNAN DIQING MINING DEV
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Problems solved by technology

[0003] In order to solve the problem that Yunnan Yangla mixed copper mine cannot be processed normally due to the large mud content and high harmful impurities such as iron, calcium and magnesium, as well as the problems of large process investment, high cost and no benefit, to achieve low investment and low cost , high-efficiency recovery and utilization of existing copper ore resources, the present invention provides a comprehensive treatment method for mixed copper ore with high mud content and high binding rate

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  • Comprehensive treatment method for high-mud content high-combination rate mixed copper ore

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Embodiment 1

[0019] The chemical composition of the raw ore of mixed copper ore processed in this embodiment is shown in Table 1, the results of phase analysis of copper in the raw ore are shown in Table 2, and the results of phase analysis of iron in the raw ore are shown in Table 3.

[0020] Process steps (in addition to conventional grinding and conventional magnetic separation, the rest of the roughing, beneficiation and sweeping are conventional flotation):

[0021] A. Coarsely grind the mixed copper ore with high mud content and high binding rate. After the primary screening, the mixed copper ore on the sieve is returned to the coarse grinding, and the mixed copper ore under the sieve is screened for the second time. Finely grind the mixed copper ore, and then return to the secondary screening. The mixed copper ore on the secondary sieve continues to be finely ground, and the mixed copper ore with a particle size of -0.074mm under the secondary sieve accounts for 87% of the mass ratio...

Embodiment 2

[0031] The chemical composition of the mixed copper ore raw ore processed in this embodiment is shown in Table 5, the copper phase analysis results in the raw ore are shown in Table 6, and the iron phase analysis results in the raw ore are shown in Table 7. The process steps are the same as in Example 1.

[0032] Process steps (in addition to conventional grinding and conventional magnetic separation, the rest of the roughing, beneficiation and sweeping are conventional flotation):

[0033] A. Coarsely grind the mixed copper ore with high mud content and high binding rate. After the primary screening, the mixed copper ore on the sieve is returned to the coarse grinding, and the mixed copper ore under the sieve is screened for the second time. Finely grind the mixed copper ore, and then return to the secondary screening. The mixed copper ore on the secondary sieve continues to be finely ground, and the -0.074mm particle size under the secondary sieve accounts for 85% of the mixe...

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Abstract

The invention provides a comprehensive treatment method for high-mud content high-combination rate mixed copper ore, which comprises the following steps of: grinding the mixed copper ore and roughing copper sulfur so as to obtain copper sulfur ore and tailings; concentrating the copper sulfur ore to obtain the copper ore and middlings; concentrating the copper ore to obtain the copper concentrate, and performing copper rough concentration on the middlings to obtain the copper ore and middlings simultaneously; concentrating the copper ore to obtain the copper concentrate, and performing copper scavenging on the middlings to prepare sulfur concentrate for recovery; performing magnetic separation on the middlings subjected to the copper scavenging so as to obtain magnetic for recovery, and returning the tailings to copper sulfur roughing. In the method, the pyrite (sulfur concentrate) is separated from the copper concentrate successfully in the flotation process for the first time so as to obtain high-quality copper concentrate; meanwhile, a large amount of magnetic pyrite is separated from the middlings subjected to flotation through the magnetic separation step, the iron sulfur content in the middlings is reduced to the greatest degree, the middlings become high-quality sulfur concentrate which can be directly used as raw materials for producing sulfuric acid, the tailings subjected to magnetic separation return to the system for recycled production, and valuable resources are fully recycled.

Description

technical field [0001] The invention relates to a comprehensive treatment method for copper ore, in particular to a comprehensive treatment method for mixed copper ore with high mud content and high binding rate, and belongs to the technical field of mineral separation. Background technique [0002] Copper minerals located in Yangla, Yunnan Province have extremely fine particle size, and the amount of symbiotic iron sulfide minerals such as pyrite and pyrrhotite is large, usually around 50%. Dissociation, and difficult to separate, is an ore that is extremely difficult to float. After testing and research before this, only the grade of copper concentrate was 13.89%, the copper recovery rate was 54.87%, the gold content of copper concentrate was 1.2g / t, the gold recovery rate was 15.12%, and the silver content of copper concentrate was 161.04% g / t, an indicator of a silver recovery rate of 32.63%. After that, the test and research were continued, and the copper concentrate ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03B7/00
Inventor 张新普张仪顾晓春刘松华彭玉昆钱国春周志鹏孔令堂和少英
Owner YUNNAN DIQING MINING DEV
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