Attrition resistant microspheroidal fluid bed catalysts...

Details Attrition resistant microspheroidal fluid bed catalysts... Attrition resistant microspheroidal fluid bed catalysts...

B - Operations, Transporting

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252/98, 260/365.

B01J 27/198 (2006.01) C07C 51/215 (2006.01) C07C 51/25 (2006.01) C07D 307/60 (2006.01)

Patent

CA 1197229

ATTRITION RESISTANT MICROSPHEROIDAL FLUID BED CATALYSTS CONTAINING THE MIXED OXIDES OF VANADIUM AND PHOSPHORUS ABSTRACT A process is provided for the preparation of attrition resistant, microspheroidal fluid bed catalysts comprising the mixed oxides of vanadium and phosphorus in which a vanadium phosphorus mixed oxided catalyst precursor is densified, comminuted, formed into fluidizable particles and calcined under fluidization-type conditions. The present invention further provides the attrition resistant fluidizable catalysts prepared by the inventive process, and further provides a process for utilizing such attrition resistant catalysts in the production of maleic anhydride in the vapor phase by the oxidation of 4 carbon atom hydrocarbons.

431131

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