发明授权
- 专利标题： PROCESS FOR RECOVERY OF NICKEL AND COBALT BY HEAP LEACHING OF LOW GRADE NICKEL OR COBALT CONTAINING MATERIAL
- 专利标题（中）： 一种获得镍和钴的堆浸低品位镍或钴材料
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申请号： EP04737564.7申请日： 2004-07-13
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公开(公告)号： EP1644541B1公开(公告)日： 2011-08-24
- 发明人: MILLER, Geoffrey, William , LIU, Houyuan
- 申请人： BHP Billiton SSM Development Pty Ltd
- 申请人地址： Level 33, Central Park 152-158 St Georges Terrace Perth, WA 6000 AU
- 专利权人： BHP Billiton SSM Development Pty Ltd
- 当前专利权人： BHP Billiton SSM Development Pty Ltd
- 当前专利权人地址： Level 33, Central Park 152-158 St Georges Terrace Perth, WA 6000 AU
- 代理机构： Moy, David
- 优先权： AU2003903632 20030714
- 国际公布： WO2005005671 20050120
- 主分类号： C22B3/06
- IPC分类号： C22B3/06 ; C22B3/04 ; C22B3/08 ; C22B3/10 ; C22B23/00 ; B03B5/00 ; B03B7/00
摘要：
A process for the recovery of nickel and cobalt from laterite ores, the process including the steps of: a) beneficiating the ore to separate it into a beneficiated upgraded ore fraction and a coarse, siliceous low grade rejects fraction which is substantially free from fines and clay materials; b) separately processing the upgraded ore fraction for the recovery of nickel and cobalt; and c) subjecting the low grade rejects fraction to a heap leach process with an acid supplemented solution to create a heap leachate for further nickel and cobalt recovery processing.
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