MY116120A - Process for recovery and recycle of ammonia from an acrylonitrile reactor effluent stream using an ammonium phosphate quench system.
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Process for recovery and recycle of ammonia from an acrylonitrile reactor effluent stream using an ammonium phosphate quench system.
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Organic Low-Molecular-Weight Compounds And Preparation Thereof
(AREA)
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. (FIG.2)
MYPI97002792A1997-06-201997-06-20Process for recovery and recycle of ammonia from an acrylonitrile reactor effluent stream using an ammonium phosphate quench system.
MY116120A
(en)
Process for the manufacture of melamine by means of catalytic conversion of carbamide in the presence of gaseous nh3 or an nh3containing gaseous mixture