Patent · US Active

Gold-based catalyst for oxidative esterification of aldehydes to carboxylic acid esters

US10906025B2 · kind B2 · utility

0Cited by

6References

20Claims

0Family size

Assignee

Roehm GmbH · DE

Inventors

Alexander Lygin · Griesheim, DE
Steffen Krill · Mühltal, DE
Matthias Groemping · Darmstadt, DE
Andreas Tepperis · Bad König, DE

Key dates

Filing date	Nov 11, 2016
Grant date	Feb 2, 2021
Priority date	—
Expiry date	Dec 26, 2036

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C69/54
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

The present invention relates to novel catalysts for oxidative esterification, by means of which, for example, (meth)acrolein can be converted to methyl (meth)acrylate. The catalysts of the invention are especially notable for high mechanical and chemical stability even over very long periods. This especially relates to an improvement in the catalyst service life, activity and selectivity over prior art catalysts which lose activity and/or selectivity relatively quickly in continuous operation in media having even a small water content.

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