发明名称 |
Process for extracting heavy metal ions from aqueous solutions |
摘要 |
The disclosure relates to a process for liquid/liquid-extraction of heavy metal ions from acid aqueous solutions with the aid of water-insoluble dithiophosphoric acid diesters as extracting agents. More particularly, use is made of phosphoric acid solutions with a P2O5-content of from 3 to 80 weight %, the solutions being free from emulsion-forming organic contaminants or having previously been freed therefrom in known manner. The resulting aqueous phase is separated from the phase containing the dithiophosphoric acid diester.
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申请公布号 |
US4503016(A) |
申请公布日期 |
1985.03.05 |
申请号 |
US19840582138 |
申请日期 |
1984.02.23 |
申请人 |
HOECHST AKTIENGESELLSCHAFT |
发明人 |
SCHIMMEL, GUENTHER;KRAUSE, WERNER;GRADL, REINHARD |
分类号 |
C02F1/26;C01B25/238;C02F1/62;C22B3/38;(IPC1-7):C01G3/00;C01G11/00;C01G9/00;C01G28/00 |
主分类号 |
C02F1/26 |
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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