| 发明名称 |
Process for treating ores containing rare earths. |
| 摘要 |
<p>Process for digesting an ore containing rare earths. This process consists in a sulphuric digestion of an ore in the reactor 1 followed by taking up with a solution of calcium nitrate in 3 and, after removal of the insolubles in 5, recovery of the rare earths by a liquid/liquid extraction process in the batteries 6a, 6b. <IMAGE></p> |
| 申请公布号 |
EP0418125(A1) |
申请公布日期 |
1991.03.20 |
| 申请号 |
EP19900402460 |
申请日期 |
1990.09.07 |
| 申请人 |
RHONE-POULENC CHIMIE |
发明人 |
CAILLY, FRANCINET;MOTTOT, YVES |
| 分类号 |
C22B3/20;C01F17/00;C22B3/08;C22B3/26;C22B3/28;C22B3/32;C22B3/38;C22B3/44;C22B3/46;C22B59/00 |
主分类号 |
C22B3/20 |
| 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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