公开(公告)号：JPH1129542A

公开(公告)日：1999-02-02

申请号：JP16301897

申请日：1997-06-19

Applicant: STANDARD OIL CO OHIO

Inventor： JAMES FRANK BRAZDIL JR ,  KENNITH PAUL KECKLER ,  RICHARD PAUL HAUSER

IPC: C07C253/24 ,  C07C253/34 ,  C07C255/08

Abstract: PROBLEM TO BE SOLVED: To provide a process for recovering and regenerating ammonia contained in an effluent liquid obtained from a reaction zone for producing a corresponding aliphatic nitrile by reacting ammonia and oxygen with a paraffin. SOLUTION: This process for recovering un-reacted ammonia from an effluent liquid of a reaction vessel obtained from a reaction zone thereof used for producing acrylonitrile or methacrylonitrile, includes a process for quenching the effluent liquid from the reaction vessel with an aqueous solution of ammonium phosphate, in which the ratio of ammonium ion to phosphate ion is between approximately 0.7 to 1.3, preferably approximately 0.9 to 1.2.