发明名称 |
Förfarande för behandling av anodslam |
摘要 |
<p>The invention relates to a hydrometallurgical method for separating the precious metals and impurities of anode sludge obtained from copper electrolysis. According to the method, anode sludge copper is separated in atmospheric leaching; calcinated in two steps for separating selenium and for sulfatizing silver; the sulfatized silver is separated by leaching into a neutral aqueous solution, from which it can be separated by reduction or by extraction.</p> |
申请公布号 |
FI20031366(A) |
申请公布日期 |
2005.03.24 |
申请号 |
FI20030001366 |
申请日期 |
2003.09.23 |
申请人 |
OUTOKUMPU OYJ, |
发明人 |
LINDROOS,LEO;VIRTANEN,HENRI;JAERVINEN,OLLI |
分类号 |
C22B1/06;C22B3/00;C22B7/00;C22B15/00;C22B61/00;(IPC1-7):C22B |
主分类号 |
C22B1/06 |
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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