发明名称 |
FOERFARANDE FOER EXTRAKTION AV TUNGMETALLJONER UR VATTENHALTIGA LOESNINGAR |
摘要 |
<p>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.</p> |
申请公布号 |
FI822490(A0) |
申请公布日期 |
1982.07.13 |
申请号 |
FI19820002490 |
申请日期 |
1982.07.13 |
申请人 |
HOECHST AKTIENGESELLSCHAFT |
发明人 |
SCHIMMEL, GYNTHER;KRAUSE, WERNER;GRADL, REINHARD |
分类号 |
C02F1/26;C01B25/238;C02F1/62;C22B3/38;(IPC1-7):B01D/ |
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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