Patent · US Expired

Carrier-supported catalyst for making monocarboxylic anhydrides

US4657884A · kind A · utility

8Cited by

3References

1Claims

0Family size

Assignee

Hoechst GmbH · DE

Inventors

Gerhard Luft · Mühltal, DE
Gebhard Ritter · Ingelheim am Rhein, DE

Key dates

Filing date	Oct 24, 1985
Grant date	Apr 14, 1987
Priority date	—
Expiry date	Oct 24, 2005

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01J2531/847
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

Carrier-supported catalyst for making monocarboxylic anhydrides by subjecting a suitable ester or ether to carbonylation. The carrier supported catalyst has an organosilicon compound containing an alkoxy or halogen group and also an organonitrogen, organophosphorus, organoarsenic, organosulfur, mercapto or thioether group as a polyfunctional adhesion promoter additively combined with the carrier material on the one hand, and with the noble metal compound of the 8th subgroup of the Periodic System of the elements, on the other hand.

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