发明名称 |
Recovery of non-ferrous metals from zinc residues |
摘要 |
The invention relates to a process for the separation and recovery of non-ferrous metals from zinc-bearing residues, in particular from residues produced by the zinc manufacturing industry. The process allows for the valorisation of metal values in a Zn-, Fe- and Pb-bearing residue, and comprises the steps of: subjecting the residue to a direct reduction step, thereby producing a metallic Fe-bearing phase and Zn- and Pb-bearing first fumes; extracting the Zn- and Pb-bearing first fumes and valorising Zn and Pb; subjecting the metallic Fe-bearing phase to an oxidising smelting step, thereby producing an Fe-bearing slag and second metals-bearing fumes; extracting the second metals-bearing fumes and valorising at least part of their metallic content. The main advantage of this process is that an environmentally acceptable output for Fe is obtained.
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申请公布号 |
US2007125197(A1) |
申请公布日期 |
2007.06.07 |
申请号 |
US20040562347 |
申请日期 |
2004.06.08 |
申请人 |
VAN CAMP MAURITS;AERTS JONATHAN;JANSSENS BENEDICT |
发明人 |
VAN CAMP MAURITS;AERTS JONATHAN;JANSSENS BENEDICT |
分类号 |
C22B13/00;C22B5/10;C22B5/16;C22B7/04;C22B13/02;C22B19/04;C22B19/30;C22B19/34 |
主分类号 |
C22B13/00 |
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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