| 发明名称 |
Re-post precipitation control |
| 摘要 |
Prevention of re-post precipitation in concentrated wet process phosphoric acid by heating the acid at 55 DEG to 85 DEG C. thereby to dissolve solids without substantial re-post precipitation.
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| 申请公布号 |
US4250154(A) |
申请公布日期 |
1981.02.10 |
| 申请号 |
US19790086640 |
申请日期 |
1979.10.22 |
| 申请人 |
GRACE, W R & |
发明人 |
HILL, RICHARD N |
| 分类号 |
C01B25/235;(IPC1-7):C01B25/16 |
主分类号 |
C01B25/235 |
| 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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