Patent · US Expired

Catalyst, process for its preparation, and use for synthesis of methyl mercaptan

US5852219A · kind A · utility

14Cited by

3References

12Claims

0Family size

Assignee

Degussa AG · DE

Inventors

Joerg Sauer · Rodenbach, DE
Wolfgang Boeck · Langenselbold, DE
Lukas von Hippel · Alzenau, DE
Werner Burkhardt · Wächtersbach, DE
Stephan Rautenberg · Hanau, DE
Dietrich Arntz · Oberursel, DE
Willi Hofen · Rodenbach, DE

Key dates

Filing date	Jun 30, 1997
Grant date	Dec 22, 1998
Priority date	—
Expiry date	Jun 30, 2017

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C319/08
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

A catalyst for the synthesis of methyl mercaptan from hydrogen sulfide and methanol, as well as a process for preparing the catalyst. The catalyst contains active aluminum oxide on which 15% to 40% by weight cesium tungstate is deposited as the activator. The activator, cesium tungstate, gives an unexpected increase in activity and selectivity as compared with potassium tungstate, which is used exclusively at the present state of the art.

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