公开(公告)号：DE2634606A1

公开(公告)日：1977-02-17

申请号：DE2634606

申请日：1976-07-31

Applicant: STANDARD OIL CO OHIO

Inventor： SURESH DEV D ,  BREMER NOEL J ,  GRASSELLI ROBERT K

IPC: C07D307/60 ,  B01J23/00 ,  C07B61/00 ,  C07C51/215 ,  C07C51/25 ,  B01J23/22

Abstract: Catalysts comprising the combined oxides of vanadium and at least one element selected from the group consisting of boron, niobium, tantalum, antimony, tungsten and chromium have been found to be especially effective in the oxidation of n-butane, n-butenes and butadiene, or a mixture thereof with molecular oxygen in the vapor phase to yield maleic anhydride. The catalysts of the present invention may be further promoted with additional elements to enhance activity, stability and selectivity. The reaction with n-butane gives an especially pure product in good yield and selectivity.