Patent · US Expired

Method for producing aliphatic carboxylic acids from aldehydes

US6696582B2 · kind B2 · utility

4Cited by

0References

16Claims

0Family size

Assignee

CELANESE CHEMICALS EUROPE GMBH · DE

Inventors

Helmut Springer · Dinslaken, DE
Peter Heymanns · Essen, DE

Key dates

Filing date	Sep 10, 2002
Grant date	Feb 24, 2004
Priority date	—
Expiry date	Oct 2, 2022

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02P20/582
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

The invention relates to a method for producing aliphatic carboxylic acids from aldehydes by means of oxidation with oxygen or gases containing oxygen. This novel process is carried out in at least two stages at different temperatures, preferably in the absence of catalysts.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.