Reactivation of maleic anhydride producing phosphorus-...

Details Reactivation of maleic anhydride producing phosphorus-... Reactivation of maleic anhydride producing phosphorus-...

C - Chemistry, Metallurgy

07

D

260/365.7

C07D 307/00 (2006.01) B01J 23/94 (2006.01) B01J 27/28 (2006.01) C07C 51/215 (2006.01) C07C 51/25 (2006.01)

Patent

CA 1096391

REACTIVATION OF A PHOSPHORUS-VANADIUM-OXYGEN COMPLEX OXIDATION CATALYST BY TREATMENT WITH HALIDE CONTAINING MATERIALS ABSTRACT OF THE DISCLOSURE The present disclosure relates to a method of reactivation of certain catalytic properties of a phosphorus-vanadium-oxygen complex catalyst which is used for the oxidation of hydrocarbons in particular acyclic aliphatics such as alkanes or alkenes to oxidation products including aldehydes, ketones, acids and anhydrides. The present method of reactivation is implemented by passing a material containing a halide over the catalyst during normal oxidation operations or in a separate procedure for process improvements. A process using a phos- phorus-vanadium-oxygen complex zinc promoted catalyst wherein butane is passed along with air or oxygen over said catalyst to effect the production of maleic anhydride is suitable for the claimed reactivating procedure.

260198

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