METHOD OF REDUCING AMOUNT OF UNREACTED AMMONIA FLOWING OUT FROM REACTOR DURING PREPARATION OF ACRYLONITRILE, AND METHOD OF PREPARATION OF ACRYLONITRILE Russian patent published in 2000 - IPC

FIELD: chemical industry. SUBSTANCE: described is method of reducing amount of waste resulting from manufacture of acrylonitrile. Method comprises adding some amount of oxygen-containing gas, preferably air, with substantially no amount of any oxygen-containing compound into upper part of fluidized catalyst bed reactor to react with at least some amount of unreacted ammonia to reduce amount of unreacted ammonia present in flow leaving the reactor. EFFECT: more efficient title method. 18 cl, 14 ex, 5 tbl