发明名称 |
Process for ammoniating phosphoric acid |
摘要 |
A process which comprises reacting ammonia with phosphoric acid in a reaction vessel to form a reaction mixture comprising ammonium phosphate characterized in that the reaction mixture is allowed to foam whereby there is formed a foaming reaction mixture comprising steam and ammonium phosphate; and in that steam and ammonium phosphate are discharged from the reaction vessel through a common outlet. Preferably the ammoniation is carried out under pressure and the foam reaction mixture is discharged via a spray nozzle into a zone of lower pressure where water is evolved spontaneously, e.g. by flash evaporation as the product is sprayed, to give a solid particulate product.
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申请公布号 |
US4284613(A) |
申请公布日期 |
1981.08.18 |
申请号 |
US19790081817 |
申请日期 |
1979.10.04 |
申请人 |
FISONS LIMITED |
发明人 |
MARTIN, DONALD M.;ROWE, PETER A. |
分类号 |
C01B25/28;(IPC1-7):C01B25/28 |
主分类号 |
C01B25/28 |
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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