发明名称 |
RECOVERY OF NON-FERROUS METALS FROM ZINC RESIDUES |
摘要 |
<p>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.</p> |
申请公布号 |
EP1641948(A1) |
申请公布日期 |
2006.04.05 |
申请号 |
EP20040739744 |
申请日期 |
2004.06.08 |
申请人 |
UMICORE |
发明人 |
VAN CAMP, MAURITS;AERTS, JONATHAN;JANSSENS, BENEDICT |
分类号 |
C22B5/10;C22B5/16;C22B7/04;C22B13/02;C22B19/04;C22B19/30;C22B19/34;(IPC1-7):C22B19/04;C22B5/12 |
主分类号 |
C22B5/10 |
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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