FIELD: chemistry.
SUBSTANCE: the scope of invention covers economically feasible methods of isolation and purification of valuable nitrogen-containing organic compounds obtained by catalytic ammoxidation of at least one original compound selected from the group consisting of propane, propylene, isobutane and isobutylene in the presence of ammonia with production of gaseous product. The methods described in invention include cooling of gas flow leaving reactor with water-containing liquid coolant; production of water solution containing relevant unsaturated mononitrile, hydrocyanic acid and other organic products; and application of integrated sequence of distillations and phase separations to isolate for recycling useful water-containing liquid and production of desired nitrogen-containing products.
EFFECT: maintenance of effective quantity to inhibit polymerisation.
30 cl, 1 dwg, 3 ex
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