发明名称 |
Method for removing organic materials from a wet process phosphoric acid |
摘要 |
A method for removing organic materials from a wet process phosphoric acid obtained by treating an uncalcined phosphate rock with sulfuric acid. The wet process phosphoric acid is contacted with a reducing material having a standard single electrode potential of at most 1.42 V and then further contacted with active carbon.
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申请公布号 |
US4637922(A) |
申请公布日期 |
1987.01.20 |
申请号 |
US19850814298 |
申请日期 |
1985.12.30 |
申请人 |
TOYO SODA MANUFACTURING CO., LTD. |
发明人 |
NAKATANI, MASAKI;HIRAGA, YOICHI |
分类号 |
C01B25/237;C01B25/235;(IPC1-7):C01B25/16 |
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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