公开(公告)号：BG101172A

公开(公告)日：1998-01-30

申请号：BG10117297

申请日：1997-01-27

Applicant: STANDARD OIL CO

Inventor： GIBSON JAMES S ,  WACHTENDORF PAUL T ,  RINKER JEFFREY E ,  GODBOLE SANJAY P

IPC: C07B63/00 ,  C07C5/08 ,  C07C253/26 ,  C07C253/32 ,  C07C253/34 ,  C07C255/03 ,  C07C255/08

Abstract: The method of acrylonitrile or methacrylonitrile recyclingproduced from the reactor flow of the reaction of aminooxidationsof propylene or isobutylene consists in the admission in thereactor flow through absorption column of a first decanter,recycling column, second decanter and stripping column. The innertenperature of the first and second decanters is maintainedbetween 0°C and 23.9°C.

公开(公告)号：ZA954931B

公开(公告)日：1996-02-07

申请号：ZA954931

申请日：1995-06-14

Applicant: STANDARD OIL CO OHIO

Inventor： REILING VINCENT G ,  RINKER JEFFREY E ,  MCDONEL TIMOTHY R ,  SARNA JOSEPH C

IPC: B01J8/24 ,  B01J12/02 ,  C01C3/02 ,  C07C253/24 ,  C07C253/26 ,  C07C253/34 ,  C07C255/08 ,  C07C

Abstract: Redn. in the amt. of unreacted ammonia exiting the reactor in acrylonitrile mfr., comprises: (a) contacting with a fluid bed catalyst, in the lower portion of a fluid bed reactor, ammonia, O2 and a hydrocarbon comprising propylene or propane, to produce acrylonitrile; (b) feeding O2 free of any oxygenate cpds. into the upper portion of the fluid bed reactor, at a point where the additional O2 does not affect the reaction, but reacts with at least some of the unreacted ammonia; (c) cooling the reactor effluent contg. acrylonitrile by feeding into a water quench column; (d) removing unwanted impurities; and (e) recovering acrylonitrile from the quench column.