发明名称 |
Verfahren zum Extrahieren von Metallen |
摘要 |
<p>A process for extracting metal values especially zinc values from aqueous solutions of metal salts which comprises contacting the aqueous solution with an organic phase comprising a compound of the formula: <CHEM> wherein each of R<1>, R<2>, R<3> and R<4>, independently, represents an optionally substituted hydrocarbyl or hydrocarbyloxy group or R<1> and R<2> together with the attached phosphorus atom and/or R<3> and R<4> together with the attached phosphorus atom form a 5- to 8-membered heterocyclic ring.</p> |
申请公布号 |
DE69327486(D1) |
申请公布日期 |
2000.02.10 |
申请号 |
DE1993627486 |
申请日期 |
1993.05.20 |
申请人 |
AVECIA LTD., MANCHESTER |
发明人 |
CAMPBELL, JOHN;DALTON, RAYMOND FREDERICK;QUAN, PETER MICHAEL |
分类号 |
B01D11/00;C07F9/24;C07F9/28;C07F9/36;C07F9/44;C07F9/6568;C22B3/26;C22B3/28;C22B3/38;C22B19/00;C22B19/20;(IPC1-7):C22B3/38;C07F9/547 |
主分类号 |
B01D11/00 |
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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