发明名称 |
Manufacture of cyanuric acid |
摘要 |
Waste digester liquor, containing dissolved triazines and iron, is treated with ammonia until the pH is about 2.5 to 4 thereby precipitating most of the triazines while leaving most of the iron in solution. The triazines are separated and recycled back to the digester. The filtrate of ammonium salts is useful as a source of fertilizer nitrogen.
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申请公布号 |
US3996224(A) |
申请公布日期 |
1976.12.07 |
申请号 |
US19750638988 |
申请日期 |
1975.12.09 |
申请人 |
FMC CORPORATION |
发明人 |
GRAY, CHARLES A.;BERKOWITZ, SIDNEY;MANGANARO, JAMES LAWRENCE |
分类号 |
C07D251/32;(IPC1-7):C07D251/32 |
主分类号 |
C07D251/32 |
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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