IMPROVED PROCESS FOR RECOVERY AND RECYCLE OF AMMONIA FROM A VAPOR STREAM
摘要
A process for the recovery of unreacted ammonia from the effluent from a reaction zone used to produce acrylonitrile or methacrylonitrile comprising quenching the reactor effluent with an aqueous solution of ammonium phosphate in at least two stages, thereby capturing the ammonia component of the effluent. The captured ammonia may be recovered by heating the aqueous ammonium phosphate, which then may be recycled. Contaminants present in the aqueous ammonium phosphate may be removed, for example by solvent extraction or wet oxidation, prior to recycle.
申请公布号
WO2006012606(A2)
申请公布日期
2006.02.02
申请号
WO2005US26283
申请日期
2005.07.21
申请人
THE STANDARD OIL COMPANY;SHUKI, ALBERT, R.;KECKLER, KENNETH, P.;BOWMAN, THOMAS, L.;SZABO, THOMAS, L.
发明人
SHUKI, ALBERT, R.;KECKLER, KENNETH, P.;BOWMAN, THOMAS, L.;SZABO, THOMAS, L.