Catalyst for oxidation reactions and process for its production

Details Catalyst for oxidation reactions and process for its production Catalyst for oxidation reactions and process for its production

B - Operations, Transporting

01

J

252/98, 260/365.

B01J 27/18 (2006.01) B01J 27/198 (2006.01) C07C 51/215 (2006.01) C07D 307/60 (2006.01)

Patent

CA 1092086

ABSTRACT Activated catalyst for oxidation reactions on the basis of mixed oxides of vanadium and phosphorus, characterized in that the vanadium has an average valence of less than +3.9. The activated catalyst is produced using a process wherein a mixed oxide, in which the vanadium has an average valence of +3.9 to more than +4, is activated at temperatures of 300° to 500°C. by passing over it a gaseous hydrocarbon component having 2 to 6 carbon atoms with the exclusion of molecular oxygen. The activated catalyst is used for the production of maleic acid anhydride from straight-chain C4-hydrocarbons in the gaseous phase.

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