Method for the synthesis of aliphatic carboxylic acids from aldehydes

US6800783B2 · kind B2 · utility

Assignee

• CELANESE CHEMICALS EUROPE GMBH · DE

Inventors

• Helmut Springer · Dinslaken, DE
• Peter Lappe · Dinslaken, DE

Key dates

• Filing date: Sep 5, 2002
• Grant date: Oct 5, 2004
• Expiry date: Sep 5, 2022

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P20/582
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The invention relates to a method for the synthesis of aliphatic carboxylic acids by the catalytic oxidation of aldehydes with oxygen, or oxygen-containing gas mixtures. Metals of groups 5 11 of the periodic table of elements, or the compounds thereof are used as catalyst, in amounts of up to 5 ppm, based upon the amount of aldehyde used.