Biological metallurgy mineral leaching microorganism combined bacterium fluid for copper ore and method for recycling metallic copper

A technology of leaching microorganisms and biometallurgy, which is applied in the direction of improving process efficiency to achieve the effects of reducing production costs, improving resource utilization efficiency, and protecting the ecological environment
CN101956071AInactive Publication Date: 2011-01-26CENT SOUTH UNIV
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
CENT SOUTH UNIV
Publication Date
2011-01-26
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses biological metallurgy mineral leaching microorganism combined bacterium fluid for a copper ore and a method for recycling metallic copper. The method comprises the following steps that: mineral leaching microorganisms after adaptive culture, continuous amplification culture and ore pile adaptive culture are combined and used for mineral leaching, and different leaching methods are adopted aiming at the ore of different objects, which comprise a biological metallurgy processing method for lump ores, powder ores, tailings, copper smelting slags and the like; and the obtained qualified leaching solution is used to prepare two products, namely electrolytic copper by an extraction-electrodeposition method and spongy copper by a short stage displacement method. The method has the advantages of suitability for industrial production under different conditions, efficient utilization of low-grade copper ore resources and capacity of effectively protecting the ecological environment of mine areas and achieving a win-win situation of economic benefit and environmental friendliness.
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Description

technical field

[0001] The invention belongs to the field of biometallurgy, and in particular relates to a biometallurgical ore leaching microbial composition bacterial liquid of copper ore and a method for recovering copper metal. Background technique

[0002] Copper is an important strategic non-ferrous metal, used in electrical, machinery manufacturing, defense industry and other fields. The world's copper resources are mainly concentrated in Chile, the United States, Zambia and other countries. Zambia's copper reserves account for 6.4% of the world's total, but among the proven copper resources, a considerable number of copper mines have yet to be developed due to the lack of efficient utilization of new technologies. In particular, the large amount of tailings and mining waste rock resources stockpiled in Zambia requires a lot of government funds to maintain the waste rock piles. However, due to the lack of effective technology, a large amount of heavy metal-containing...

Claims

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