| 发明名称 |
Process for extracting cadmium-ions from wet process phosphoric acid. |
| 摘要 |
<p>A process for the removal of cadmium ions by liquid-liquid extraction from wet process phosphoric acid, which had been obtained from crude phosphate ores by dissolution with sulfuric acid, uses salts of long chain alkyl amines or ammonium bases with the chlorocomplexes of polyvalent metal ions, which are dissolved in an inert organic solvent.</p> |
| 申请公布号 |
EP0399521(B1) |
申请公布日期 |
1994.07.27 |
| 申请号 |
EP19900109860 |
申请日期 |
1990.05.23 |
| 申请人 |
CHEMISCHE FABRIK BUDENHEIM RUDOLF A. OETKER |
发明人 |
FRANKENFELD, KLAUS, DR.;BELTZ, KLAUS, DR.;EICH, GERHARD;ENDRICH, KLAUS, DR. |
| 分类号 |
C01B25/238;C01B25/46;C01G11/00;C22B3/28;(IPC1-7):C22B3/28 |
主分类号 |
C01B25/238 |
| 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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