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A comprehensive treatment method for mixed copper ore

A mixed copper ore and comprehensive treatment technology, which is applied to the comprehensive treatment of mixed copper ore with high oxidation rate, comprehensive treatment of copper ore resources, and can solve the problems of high cost, high mud content and high oxidation rate in areas with high mud content. Achieve the effect of small investment, low cost and efficient recycling

Inactive Publication Date: 2011-12-07
YUNNAN DIQING MINING DEV
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AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems of high mud content, high oxidation rate, high iron, calcium, magnesium and other impurities, copper oxide ore cannot be normally processed, and the problems of large investment, high cost and no economic benefit, the present invention provides a mixed copper ore Comprehensive treatment method

Method used

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  • A comprehensive treatment method for mixed copper ore
  • A comprehensive treatment method for mixed copper ore
  • A comprehensive treatment method for mixed copper ore

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Embodiment 1

[0019] The raw ore chemical composition analysis results of this embodiment 1 are shown in Table 1, the copper phase analysis results in the raw ore are shown in Table 2, the iron phase analysis results in the raw ore are shown in Table 3, and the technical indicators after beneficiation are shown in Table 4.

[0020] In Example 1, the total dosage of chemicals is: xanthate 35g / t, YL-1 45g / t, sodium sulfide 20g / t, lime 8kg / t, butyl ammonium black medicine 5g / t, soda ash 0.35kg / t.

[0021] Above-mentioned raw ore is passed through following steps:

[0022] 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 subjected to secondary screening, and the secondary sieved After the mixed copper ore on the sieve is finely ground, return to the secondary screening, and the mixed copper ore on the secondary sieve co...

Embodiment 2

[0029] The chemical composition analysis results of the raw ore in this embodiment 2 are shown in Table 5, the copper phase analysis results in the raw ore are shown in Table 6, the iron phase analysis results in the raw ore are shown in Table 7, and the technical indicators after beneficiation are shown in Table 8.

[0030] In Example 2, the total amount of chemicals used is: xanthate 34g / t, YL-1 46g / t, sodium sulfide 21g / t, lime 8kg / t, butyl ammonium black medicine 5g / t, soda ash 0.36kg / t.

[0031] Above-mentioned raw ore is passed through following steps:

[0032] 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 subjected to secondary screening, and the secondary sieved After the mixed copper ore on the sieve is finely ground, return to the secondary screening, and the mixed copper ore on the second...

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Abstract

The invention provides a comprehensive treatment method for mixed copper ore, which successfully separates sulfur concentrate and copper concentrate through the process steps of rough grinding, screening, fine grinding, rough flotation, fine flotation, magnetic separation, and sweeping. , so as to obtain high-quality copper concentrate, and then select a large amount of pyrrhotite from the middling ore through the magnetic separation step, which minimizes the iron and sulfur content of the middling ore, and can make the middling ore a high-quality Good sulfur concentrate can be directly used as raw material for sulfuric acid production, and the tailings after magnetic separation can be returned to the system for circular production, so that valuable resources can be fully recycled, and the tailings are discharged to the tailings dam after multi-stage screening Storage, to overcome the problems of heavy production load caused by the return of tailings, low concentrate grade and low recovery rate, the comprehensive recovery rate of copper is over 80%, the concentrate grade is over 19%, and the gold content of copper concentrate is 6g / t Above, the gold recovery rate is over 45%, the copper concentrate contains more than 418g / t of silver, and the silver recovery rate is over 50%.

Description

[0001] technical field [0002] The invention relates to a comprehensive treatment method for copper ore resources, in particular to a comprehensive treatment method for mixed copper ore with high mud content and high oxidation rate, and belongs to the technical field of mineral separation. Background technique [0003] For copper oxide ore with high mud content and impurities such as iron, calcium, magnesium, etc., because its oxidation rate is as high as 40%, the bonding rate is about 15%, and the mineral embedded particle size is extremely fine, iron sulfide ore Minerals such as pyrite and pyrrhotite have a grade of 50%, and are very easy to float, and it is difficult to dissociate and even more difficult to separate after symbiosis with copper minerals. Therefore, it is an ore that is extremely difficult to float. After treatment with the method of the prior art, the grade of the obtained copper concentrate is only 12.22%, the recovery rate of copper is 33.94%, the gold ...

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张朝新周志鹏孔令堂钱国春杨东和少英李昌祜李成相
Owner YUNNAN DIQING MINING DEV
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