发明名称 |
Förfarande för upplösning av sulfidisk och metallisk nickelsten |
摘要 |
<p>The invention relates to a method for leaching pyrometallurgically produced, copper-containing sulfidic nickel matte. The nickel matte is first fed to an atmospheric leach step from which is obtained a nickel-bearing solution and a copper- and nickel-bearing leach residue, wherein the weight ratio of copper to nickel is not more than about 1. This is followed by adding a copper-containing solid matter into the leach residue and conducting the leach residue to pressure leaching. After the pressure leaching, there can be obtained a leach residue, which consists of copper sulfide precipitate relatively pure as regards iron and which also contains the precious metals of nickel matte.</p> |
申请公布号 |
FI20085627(A) |
申请公布日期 |
2009.12.20 |
申请号 |
FI20080005627 |
申请日期 |
2008.06.19 |
申请人 |
NORILSK NICKEL FINLAND OY |
发明人 |
LINDELL, ESA;LATVA-KOKKO, MARKO;KOTUKHOV, SERGEY |
分类号 |
C22B |
主分类号 |
C22B |
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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