| 发明名称 |
Process for dearsenifying phosphoric acid solutions |
| 摘要 |
Phosphoric acid solutions are dearsenified by treating them with a sulfide and separating the resulting precipitate from the purified solution. The sulfide is at least one compound of the general formula P4Sx in which x stands for a number of 3 to 10.
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| 申请公布号 |
US4668492(A) |
申请公布日期 |
1987.05.26 |
| 申请号 |
US19850801737 |
申请日期 |
1985.11.26 |
| 申请人 |
HOECHST AKTIENGESELLSCHAFT |
发明人 |
SCHIMMEL, GUENTHER;GRADL, REINHARD;HEYMER, GERO |
| 分类号 |
C01B25/237;C01B25/238;C01B25/30;C01B25/46;(IPC1-7):C01B25/16;C01B25/26 |
主分类号 |
C01B25/237 |
| 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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