| 发明名称 |
PROCESS FOR THE LIQUID-LIQUID EXTRACTION OF RARE-EARTH METALS |
| 摘要 |
<p>Rare-earth elements present in aqueous solutions are separated using a solvent by a process which consists in performing a liquid- liquid extraction between an aqueous phase containing the rare-earth nitrates and an organic phase, characterised in that a mixture of organophosphorus compounds is used as extraction agent. <IMAGE></p> |
| 申请公布号 |
EP0284504(B1) |
申请公布日期 |
1992.06.17 |
| 申请号 |
EP19880400646 |
申请日期 |
1988.03.18 |
| 申请人 |
RHONE-POULENC CHIMIE |
发明人 |
DELLOYE, THIERRY;SABOT, JEAN-LOUIS |
| 分类号 |
B01D11/04;C01F17/00;C22B3/38;C22B59/00 |
主分类号 |
B01D11/04 |
| 代理机构 |
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代理人 |
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