公开(公告)号：FI782217A

公开(公告)日：1979-01-30

申请号：FI782217

申请日：1978-07-11

Applicant: STANDARD OIL CO OHIO

Inventor： FITZGIBBINS WILLIAM OWEN ,  WU HSIN CHIH

IPC: C07C255/03 ,  B01D20060101 ,  B01D3/00 ,  B01D3/40 ,  C07C20060101 ,  C07C67/00 ,  C07C253/00 ,  C07C255/08 ,  C07C

Abstract: The present invention provides a method for greatly reducing the amount of solids-containing waste streams produced during the recovery of acrylonitrile or methacrylonitrile produced by the ammoxidation reaction of propylene or isobutylene with molecular oxygen and ammonia. … This is realized by recycling at least a part of the product column bottoms to the quench column.