FIELD: organic chemistry, chemical technology. SUBSTANCE: invention relates to the improved method of extraction of acrylonitrile and methacrylonitrile that is used in production of acrylonitrile and methacrylonitrile. Method involves extraction of acrylonitrile and methacrylonitrile obtaining from exhaust current from reactor after reaction of ammoxidation of propylene or isobutylene. Method involves passing exhaust current from reactor through column for rapid cooling, absorption column, distillation column form products extraction and desorption column and provides pressure increase in upper part of distillation column for extraction by using mechanical agent by about from 0.007 to about 0.352 kg/square cm in order to improve hydraulic capacity of columns for extraction and desorption. Method allows to reduce amount of exhaust gas and enhance output by product yield, effectiveness of extraction and quality of product by decrease of organic impurities amount in obtained end product. EFFECT: improved method of extraction. 8 cl
