发明名称 |
Método hidrometalúrgico para separar metais preciosos e as impurezas de lama de anodo |
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 |
BRPI0414606(B1) |
申请公布日期 |
2015.08.11 |
申请号 |
BR2004PI14606 |
申请日期 |
2004.08.31 |
申请人 |
OUTOTEC OYJ |
发明人 |
LINDROOS;LEO;VIRTANEN;HENRI;JÄRVINEN;OLLI |
分类号 |
C22B3/00;C22B1/06;C22B7/00;C22B15/00;C22B61/00 |
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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