发明名称 |
STABILIZATION OF WET PROCESS PHOSPHORIC ACID |
摘要 |
An improved method for producing wet process phosphoric acid with low post-precipitation characteristics from an unclarified dilute wet process phosphoric feed acid is described. The feed acid is processed through crystallization, centrifugation and concentration steps under controlled conditions to produce the desired products. The method also allows for the simultaneous production of merchant grade phosphoric acid and clarified merchant phosphoric acid. |
申请公布号 |
DE3478303(D1) |
申请公布日期 |
1989.06.29 |
申请号 |
DE19843478303 |
申请日期 |
1984.07.18 |
申请人 |
FREEPORT MINERALS COMPANY |
发明人 |
ASTLEY, VIVIAN, CHARLES;TARAVELLA, JODY, JUDE |
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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