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Method for intensively extracting copper in high-grade chalcocite

A high-grade, chalcocite technology, applied in the direction of improving process efficiency, can solve the problems of long leaching cycle, low resource utilization rate, slow copper leaching, etc., and achieve the effect of shortening leaching cycle, accelerating copper leaching and efficient utilization

Pending Publication Date: 2021-04-09
WANBAO MINING
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Problems solved by technology

[0004] The technical problem to be solved by the present invention is how to provide a method for intensified extraction of copper in high-grade chalcocite, so as to solve the shortcomings of existing copper extraction methods such as long leaching cycle, slow copper leaching, and low resource utilization rate.

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  • Method for intensively extracting copper in high-grade chalcocite

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Embodiment Construction

[0024] In order to make the purpose, content and advantages of the present invention clearer, the specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0025] The purpose of the present invention is to provide a process for intensively extracting copper from high-grade chalcocite, which can not only shorten the leaching period but also speed up copper leaching, efficiently utilize high-grade chalcocite, and realize resource utilization maximization.

[0026] A process for intensively extracting copper from high-grade chalcocite ore. Firstly, the high-grade chalcocite ore is crushed and piled up, and then after the pile is completed, the bacteria-containing raffinate with high acid and high iron is used for cyclic leaching operation. The leachate is regularly Sampling is carried out to analyze the copper concentration. When the copper concentration of the leaching soluti...

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Abstract

The invention relates to a method for intensively extracting copper in high-grade chalcocite, and belongs to the field of wet nonferrous metallurgy. According to the method, the high-grade chalcocite ore is crushed and heaped, after heaped, high-acid and high-iron bacterium-containing raffinate is adopted for cyclic leaching operation, leachate is sampled at regular intervals to analyze the copper concentration, when the copper concentration of the leachate is larger than 3.5 g / l, the leachate is extracted, and the extracted raffinate returns to continue to be leached. According to the method, a high-acid and high-iron leaching system is formed in a high-grade chalcocite dump leaching system in a manner of combining biological dump leaching circulating leaching and extraction acid returning, and rapid leaching of the chalcocite is enhanced and promoted, so that the leaching period is shortened, massive leaching of copper metal is realized, and the utilization rate of copper resources is increased.

Description

technical field [0001] The invention belongs to the technical field of wet nonferrous metallurgy, and in particular relates to a method for intensively extracting copper from high-grade chalcocite. Background technique [0002] Chalcocite (Cu 2 S), as the most common secondary copper sulfide mineral in nature, is also the copper mineral with the highest copper content. It is one of the most important copper resources and has always been favored by the copper smelting industry. The industrial grade generally contains about 0.4% copper, and the industrial grade greater than 1% can be called a rich ore. Generally, the copper ore with an industrial grade less than 5% is enriched into copper concentrate by beneficiation method. High-grade mines are generally developed by flotation-fire refining after crushing and grinding, while low-grade mines are mostly produced by bioheap leaching-extraction-electrodeposition of raw ore or crushed ore. However, the ore grade varies with diff...

Claims

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Application Information

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IPC IPC(8): C22B3/18C22B15/00C22B3/30
CPCC22B3/18C22B15/0071Y02P10/20
Inventor 杨均流徐敬元钟传刚梁新星赵声贵刘云峰张罗虎
Owner WANBAO MINING
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