Catalyst having a silver-vanadium oxide phase and a promoter...

Details Catalyst having a silver-vanadium oxide phase and a promoter... Catalyst having a silver-vanadium oxide phase and a promoter...

2008-03-04

2008-03-04

Zucker, Paul A. (Department: 1621)

Catalyst, solid sorbent, or support therefor: product or process

Catalyst or precursor therefor

Metal, metal oxide or metal hydroxide

C562S415000, C562S888000, C568S431000

Reexamination Certificate

active

10594128

ABSTRACT:
A catalyst is described which has a catalytically active composition which contains a phase A and a phase B in the form of three-dimensional delimited regions, wherein phase A is a silver-vanadium oxide bronze and phase B a mixed oxide phase based on titanium dioxide and vanadium pentoxide. The catalyst serves to prepare aldehydes, carboxylic acids and/or carboxylic anhydrides from aromatic or heteroaromatic hydrocarbons by gas phase oxidation.

REFERENCES:
patent: 6849574 (2005-02-01), Heidemann et al.
patent: 0 447 267 (1991-09-01), None
patent: 99 62637 (1999-12-01), None
patent: 00 27753 (2000-05-01), None
patent: 01 85337 (2001-11-01), None
patent: 2005 012216 (2005-02-01), None

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