Process for recovery and recycle of ammonia from an acrylonitril

Details Process for recovery and recycle of ammonia from an acrylonitril Process for recovery and recycle of ammonia from an acrylonitril

1997-10-17

1999-04-20

Langel, Wayne

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Nitrogen or nitrogenous component

558319, C01C 300, C07C25300

Patent

active

058956352

ABSTRACT:
A process for the recovery of unreacted ammonia from the reactor effluent obtained from a reaction zone used to produce acrylonitrile or methacrylonitrile comprising quenching the reactor effluent with an aqueous solution of ammonium phosphate wherein the ratio of ammonium ions to phosphate ions in the solution is between about 0.7 to about 1.3, preferably between about 0.9 to 1.2.

REFERENCES:
patent: 2797148 (1957-06-01), Carlson
patent: 3718731 (1973-02-01), Carlson et al.
patent: 3914386 (1975-10-01), Anderson
patent: 3985863 (1976-10-01), Rice et al.
patent: 4036870 (1977-07-01), Castellion et al.
patent: 4287162 (1981-09-01), Scheibel
patent: 4918214 (1990-04-01), Brazdil, Jr. et al.

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