Molecular oxidation of aromatic hydrocarbons to the correspondin

Details Molecular oxidation of aromatic hydrocarbons to the correspondin Molecular oxidation of aromatic hydrocarbons to the correspondin

1984-06-29

1986-04-15

Raymond, Richard L.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

502350, 502353, 549245, 549248, C07D30789, C07D49304

Patent

active

045829110

ABSTRACT:
In accordance with the process of this invention, an improved catalyst for molecular oxidation of an aromatic hydrocarbon to form the corresponding aromatic carboxylic anhydrides is prepared by the steps of forming a catalyst precursor by depositing on titanium dioxide solids in the anatase form a discontinuous monolayer amount of at least one source of tantalum oxide, calcining the thus-formed catalyst precursor under conditions sufficient to convert the tantalum oxide source into the oxide form, depositing upon the calcined catalyst precursor a catalytically effective amount of at least one vanadium compound which is convertible into vanadium oxide upon heating and calcining the vanadium-deposited solids under conditions sufficient to convert the vanadium compound into vanadium oxide.

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German Patent Publication No. 2,030,544, Jan. 2, 1970, BASF.

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