Process for preparing saturated carboxylic acids having from one to four carbon atoms by gas-phase oxidation of 2-butanone

US6884909B2 · kind B2 · utility

Assignee

• Consortium für elektrochemische Industrie GmbH · DE

Inventors

• Christoph Rüdinger · Starnberg, DE
• Harald Voit · Reischach, DE
• Hans-Jurgen Eberle · Munich, DE

Key dates

• Filing date: Oct 31, 2002
• Grant date: Apr 26, 2005
• Expiry date: Oct 31, 2022

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C51/245
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

A process for preparing saturated carboxylic acids having from one to four carbon atoms by gas-phase oxidation, includes reacting 2-butanone with oxygen over a coated catalyst which is an inert nonporous support body and a catalytically active mixed oxide composition comprising (a) one or more oxides selected from the group consisting of titanium dioxide, zirconium dioxide, tin dioxide and aluminum oxide, and (b) from 0.1% to 1.5% by weight, based on the weight of the component (a) and per m2/g of specific surface area of the component (a), of vanadium pentoxide, applied to the external surface of the support body.