PROCESS FOR RECOVERY OF OLEFINIC NITRILES

摘要

Acrylonitrile or methacrylonitrile was manufd. by the ammoxidn. of propylene or isobutylene and recovered from the reaction mixt. by contacting the product stream with a guenching liq. which forms a gaseous stream, absorbing the gas in water to form a soln. and distg. the soln. to recover acetonitrile by removing the major part of the byproduct and water. The bottom flow from the distn. column is recycled and used at least a part of the quenching liq.