Method of preparing high purity copper by bacteria of primary leaching sulfide ore

A technology for sulfide ore and high-purity copper, which is applied in the improvement of process efficiency, photography process, instruments, etc., can solve the loss of high-value cobalt, the unstable extraction of extraction, and the impact on the quality of cathode copper. and other problems, to achieve the effect of enhancing the synergistic leaching effect, eliminating the formation of the third phase of extraction, and reducing the amount of
CN100460532CInactive Publication Date: 2009-02-11CENT SOUTH UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CENT SOUTH UNIV
Publication Date
2009-02-11
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a method of preparing high pure copper from the leachate of primary sulfide ore bacteria, including: it leaches the primary sulfide ores and its mixture by using the mixture of middle and mesophilic bacterias. It filters and extracts the bacterial leaching solution, and conducts thin-layer wash-condensate, coalescence phase, and back-extraction electrowinning for the organic phase load. The invention uses hybrid strains of bacteria and sub-culture techniques to enhance the synergy of the bacterial leaching role and the minerals leaching rate, uses gelatin and other additives without sulfur element to reduce the sulfur impurities.
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Description

technical field

[0001] The invention relates to a method for preparing high-purity copper with a percentage of more than 99.999%, which is suitable for bacterial leaching of primary sulfide ore, and belongs to the technical field of biometallurgy. Background technique

[0002] The preparation of high-purity cathode copper is divided into two technical routes: pyrometallurgy and hydrometallurgy.

[0003] When preparing high-purity copper by pyrometallurgical process technology, it is generally necessary to grind ore and beneficiate to obtain concentrate, and then undergo pyrometallurgical smelting to make anode copper (crude copper), and the anode copper is further electrolyzed to make 4N (99.99%) cathode Copper, 4N cathode copper is made into higher purity copper through various methods. At present, the main production technologies for purifying 4N (99.99%) cathode copper to 5N-8N cathode copper include area smelting and solution technology. Among them, the solution purifi...

Claims

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