发明名称 |
Process for separation of the rare earths by solvent extraction |
摘要 |
Production rates for solvent extraction separation of the rare earths and yttrium from each other can be improved by the substitution of di(2-ethylhexyl) mono-thiophosphoric acid for di(2-ethylhexyl) phosphoric acid. The di(2-ethylhexyl) mono-thiophosphoric acid does not form an insoluble polymer at approximately 50% saturation as does the former extractant, permitting higher feed solution concentration and thus greater throughput.
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申请公布号 |
US4016237(A) |
申请公布日期 |
1977.04.05 |
申请号 |
US19750611272 |
申请日期 |
1975.09.08 |
申请人 |
THE UNITED STATES OF AMERICA AS REPRESENTED BY THE UNITED STATES ENERGY RESEARCH AND DEVELOPMENT ADMINISTRATION |
发明人 |
MASON, GEORGE W.;LEWEY, SONIA |
分类号 |
C01F17/00;C22B59/00;(IPC1-7):C01F17/00 |
主分类号 |
C01F17/00 |
代理机构 |
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主权项 |
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地址 |
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