Supported catalyst for the preparation of phthalic anhydride

Details Supported catalyst for the preparation of phthalic anhydride Supported catalyst for the preparation of phthalic anhydride

1981-11-30

1983-08-09

Gantz, Delbert E.

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

252430, 252435, 252477R, B01J 2102, B01J 3102, B01J 2714, B01J 3500

Patent

active

043977685

ABSTRACT:
A catalyst is disclosed comprising an inert carrier supporting a catalytically active mass of vanadium pentoxide, titanium dioxide, promoters and inhibitors for use in the gas phase reaction of ortho-xylene with air to produce phthalic anhydride without addition of sulfur or sulfur dioxide to the ortho-xylene-air mixture.

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