Process for distilling ammoniacal solutions

Details Process for distilling ammoniacal solutions Process for distilling ammoniacal solutions

1981-01-06

1982-03-09

Sever, Frank

Distillation: processes, separatory

Distilling to separate or remove only water

203 20, 203 75, 203 77, 203 78, 203 80, 203 82, 203 84, 203 93, 203 94, 203 98, 423352, B01D 328

Patent

active

043187820

ABSTRACT:
A process for distilling ammoniacal solutions is disclosed comprising the utilization of two distillation columns operating at different pressures, the ammoniacal solution to be distilled being sent--after being mixed with the ammoniacal vapors flowing from the top of the column operating at the lower pressure--to the column operating at the higher pressure, from the bottom of which the partially distilled ammoniacal solution is sent to the column operating at the lower pressure; the liquid ammonia being recovered at the top of the column operating at the higher pressure while the residual ammoniacal solution is withdrawn from the bottom of the column operating at the lower pressure.

REFERENCES:
patent: 2501326 (1950-03-01), Gilmore
patent: 2519451 (1950-08-01), Fulton

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