| 发明名称 |
WET-PROCESS TECHNIQUE FOR REFINING PHOSPHORIC ACID |
| 摘要 |
The present invention relates to a wet-process technique for refining phosphoric acid, consisting in multi-step removal of impurities by means of a solvent mixture, which is distillated and cycled. The inventive method permits the economic production of two phosphoric acid qualities with a high yield and purity grade.
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| 申请公布号 |
CA2250914(A1) |
申请公布日期 |
1998.08.06 |
| 申请号 |
CA19982250914 |
申请日期 |
1998.02.02 |
| 申请人 |
BK GIULINI CHEMIE GMBH & CO. OHG |
发明人 |
MAURER, ALEXANDER;POTENCSIK, ISTVAN |
| 分类号 |
C01B25/46;(IPC1-7):C01B25/46;C01B25/222;C01B25/234 |
主分类号 |
C01B25/46 |
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