Catalytic oxidation of phenols to 1,4-benzoquinones

Details Catalytic oxidation of phenols to 1,4-benzoquinones Catalytic oxidation of phenols to 1,4-benzoquinones

1980-12-15

1982-03-02

Niebling, John F.

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

252430, 252432, 260396R, C07C 4966

Patent

active

043177450

ABSTRACT:
A catalyst for the oxidation of phenols to 1,4-benzoquinones in the gas phase with an oxygen containing gas such as air, substantially pure oxygen, or mixtures thereof. The composition of the catalyst comprises vanadium pentoxide or ammonium metavanadate, the sulfate salt of an alkali metal or of ammonia, the pyrosulfate salt of an alkali metal or of ammonia, an iron sulfate, boric acid, and silica.

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