发明名称 |
SELEKTIVT TILLVARATAGANDE AV TENN MEDELST EXTRAHERING MED TERTIAERA FOERGRENADE FOSFINOXIDER. |
摘要 |
<p>Disclosed are processes for the selective extraction of tin from aqueous acidic solutions bearing tin and other metal cations. Branched tertiary phosphine oxides comprising at least two branches per alkyl group show higher extraction coefficients, E, for tin than other metals, e.g., zinc (III), iron (II), iron (III), copper (II) and lead (II). Novel compositions for selectively extracting tin comprising combinations of symmetrical branched phosphine oxides and unsymmetrical phosphine oxides are also disclosed.</p> |
申请公布号 |
FI883313(A) |
申请公布日期 |
1989.01.14 |
申请号 |
FI19880003313 |
申请日期 |
1988.07.12 |
申请人 |
AMERICAN CYANAMID COMPANY |
发明人 |
RICKELTON, WILLIAM ANDREW;BOYLE, RICHARD JAMES |
分类号 |
B01D11/04;C01G19/00;C22B3/38;(IPC1-7):C22B/ |
主分类号 |
B01D11/04 |
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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