发明名称 |
A PROCESS FOR UPGRADING AN ORE OR CONCENTRATE |
摘要 |
<p>According to the present invention there is provided a process for upgrading an ore or concentrate that contains metal sulphur minerals and gangue material. The process includes the stages of: a) selectively leaching the or e or concentrate using an ammoniacal solution containing ammonium carbonate th at forms soluble metal ammine complexes; b) separating the solid and liquid phases formed in stage a) with the liquid phase forming a solution including soluble metal ammine complexes and the solid phase including at least in par t the gangue material; c) removing ammonia and carbon dioxide from the liquid phase formed in step b) under conditions so as to selectively precipitate th e valuable metal(s); and d) separating the solid and liquid phases formed in stage c) with the solid phase forming a more-concentrated source of valuable metal.</p> |
申请公布号 |
CA2533024(A1) |
申请公布日期 |
2005.01.27 |
申请号 |
CA20042533024 |
申请日期 |
2004.07.12 |
申请人 |
ZINIFEX LIMITED |
发明人 |
NEWMAN, OLIVER MICHAEL GRIFFITHS;BRYANT, SALLY ELIZABETH;FREEMAN, PAUL CHRISTOPHER |
分类号 |
C22B3/00;C22B3/04;C22B3/12;C22B3/14;C22B3/44;C22B19/00;C22B19/34 |
主分类号 |
C22B3/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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