发明申请
- 专利标题： Heap bioleaching process for the extraction of zinc
- 专利标题（中）： 用于提取锌的堆生物浸出过程
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申请号： US10483334申请日： 2002-07-10
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公开(公告)号： US20070193413A9公开(公告)日： 2007-08-23
- 发明人: Juris Harlamovs , Daniel Ashman , Jose Alberto Dominguez , Hector Lizama , Dilipkumar Makwana , Andrew Stradling
- 申请人： Juris Harlamovs , Daniel Ashman , Jose Alberto Dominguez , Hector Lizama , Dilipkumar Makwana , Andrew Stradling
- 优先权： CA2,353,002 20010713
- 国际申请： PCT/CA02/01053 WO 20020710
- 主分类号： C22B3/18
- IPC分类号： C22B3/18
摘要：
A method of extracting zinc from a sulphidic ore is provided which comprises bioleaching the ore in a heap with acidophilic microorganisms to produce a pregnant leach solution which is recovered from the bottom of the heap. An integrated process which comprises subjecting the pregnant leach solution to neutralization and solvent extraction to produce a concentrated zinc solution is also provided. Zinc may be recovered from the concentrated solution by means of electrowinning, either in the absence or presence of manganese. Alternatively zinc may be recovered in the form of a zinc compound.
公开/授权文献
- US07455715B2 Heap bioleaching process for the extraction of zinc 公开/授权日：2008-11-25
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