Leaching-ore bacteria and biological indium extraction process in sphalerite concentrate ore

A technology of leaching bacteria and zinc concentrate, which is applied in the field of biological indium extraction technology, can solve the problems of not having a very ideal smelting treatment method and the like
CN101748085AActive Publication Date: 2010-06-23有研资源环境技术研究院(北京)有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
有研资源环境技术研究院(北京)有限公司
Publication Date
2010-06-23

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Abstract

The invention provides leaching-ore bacteria and a biological indium extraction process in a sphalerite concentrate ore. The name of the leaching-ore bacteria is Leptospirillum ferrooxidans Retech-SPL-1, the preservation register number of the leaching-ore bacteria is CCTCC NO:M 208162, the preservation data is on October 17th in 2008, the preservation unit of the leaching-ore bacteria is China Center for Type Culture Collection, and the address of China Center for Type Culture Collection is in the Wuhan University. The biological indium extraction process in the sphalerite concentrate ore comprises the following steps: carrying out acclimatisation and amplification culture on the leaching-ore bacteria; putting the cultivated leaching-ore bacteria in a stirring pot containing ore pulp; completing the leaching process by aerating and stirring; and sending leaching solution obtained by the leaching step to the step of iron removing and indium extracting back-extraction electrodeposition. The invention has the advantages of being benefit for environment protection and also being used for developing the low grade indium resource which is not easily comprehensively utilized by the conventional beneficiation and metallurgy technology, enlarging the utilization range of the indium mineral resource and improving the comprehensive utilization of the indium.
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Description

technical field

[0001] The invention relates to a bio-indium extraction process from a leaching bacteria and zinc concentrate, in particular to a bio-indium extraction process from a leaching bacteria and sphalerite concentrate. Background technique

[0002] Indium, as an advantageous scattered metal resource in my country, is often associated with polymetallic zinc concentrates. After beneficiation, indium is mainly enriched in zinc concentrates. Therefore, the zinc concentrate after flotation is the largest raw material source for extracting indium, and the research on extracting indium from zinc concentrate has always been one of the focuses of metallurgists at home and abroad. The traditional refining process not only has a long process, many procedures, complex equipment, large investment, but also a large amount of slag treatment, and the recovery rate of indium is mostly below 50%. For a long time, the enrichment and comprehensive recovery of indium has been a very d...

Claims

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