Liquid phase oxygenation reaction using tungsten species

Details Liquid phase oxygenation reaction using tungsten species Liquid phase oxygenation reaction using tungsten species

2008-09-16

2008-09-16

Oh, Taylor Victor (Department: 1625)

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

Catalyst or precursor therefor

Organic compound containing

C568S954000, C568S959000, C549S263000

Reexamination Certificate

active

10621399

ABSTRACT:
The present invention is to provide a method by which, in carrying out a liquid-phase oxidation reaction using a catalyst comprising a tungsten species as an essential component, the catalytic activity performance can be improved or maintained and by which the catalyst component tungsten species can be prevented from being leached into liquid reaction mixtures to thereby control decrease in catalytic activity and make it possible to reuse the catalyst.A method of liquid-phase oxidation reaction using a tungsten species, wherein that, in carrying out said method of liquid-phase oxidation reaction using a catalyst comprising a tungsten species as an essential component, said tungsten species is caused to be supported on a porous support and, further, a third element other than the component elements of said porous support and the tungsten element is caused to coexist in said catalyst.

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Office Action issued on Mar. 10, 2008 in counterpart European Application No. 03291769.2.

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