公开(公告)号：ZA9705273B

公开(公告)日：1998-03-25

申请号：ZA9705273

申请日：1997-07-13

Applicant: STANDARD OIL CO

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

IPC: C07C20060101 ,  C07C

公开(公告)号：RO116273B1

公开(公告)日：2000-12-29

申请号：RO9900313

申请日：1999-03-23

Applicant: STANDARD OIL CO

Inventor： BRAZDIL JR JAMES FRANK ,  TOFT MARK ANTHONY

IPC: B01J23/00 ,  B01J23/88 ,  B01J23/28 ,  B01J23/887 ,  B01J37/08 ,  C07B61/00 ,  C07C253/24 ,  C07C255/07 ,  C07C255/08

Abstract: The invention relates to a process for preparing acrylonitrile or methacrylonitrile by means of the catalytic reaction in a vapour phase of a paraffin hydrocarbon, chosen from propane and isobutane, with molecular oxygen and ammonia in a molar ratio paraffin hydrocarbon to ammonia of 2.5 to 16 and a molar ratio paraffin hydrocarbon to oxygen of 1.0 to 10, the catalyst composition corresponding to the following empirical formula : VSBmAaMobDdOx where A is an element selected from among Ti, Sn, Fe, Cr, or Ga; D represents one or more elements selected from among Li, Mg, Ca, Sr, Ba, Co, Ni, Zn, Ge, Nb, Zr, W, Cu, Te, Ta, Se, Bi, Ce, In, As, B and Mn ; m is equal to 0.8 up to 4.0 ; a is equal to 0.01 up to 2.0 ; b is greater than 0 and greater than 0.005 ; d is equal to 0 up to 2.0 ; x has a value determined by the oxidation condition of the present cations, the catalyst being thermally treated at a temperature of at least 780 C degrees .

公开(公告)号：ZA975273B

公开(公告)日：1998-03-25

申请号：ZA975273

申请日：1997-07-13

Applicant: STANDARD OIL CO

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

IPC: C07C20060101 ,  C07C