Process for the manufacture of methylmercaptan

US7569731B2 · kind B2 · utility

Assignee

• Degussa AG · DE

Inventors

• Yiquan Yang · Xiamen, CN
• Qi Wang · Chesterfield, US
• Renchun Lin · Xiamen, CN
• Hongbin Zhang · College Station, US
• Youzhu Yuan · Xiamen, CN
• Weiping Fang · Xiamen, CN
• Quanxing Zheng · Xiamen, CN
• Shenjun Dai · Xiamen, CN
• Xingguo Yan · Xiamen, CN
• Aiping Chen · Xiamen, CN
• Jan-Olaf Barth · Siegsdorf, DE
• Christoph Weckbecker · Gelnhausen, DE
• Klaus Huthmacher · Gelnhausen, DE
• Hubert Redlingshöfer · Neustadt an der Aisch, DE
• Sabine Ackermann · Hanau, DE

Key dates

• Filing date: Sep 29, 2004
• Grant date: Aug 4, 2009
• Expiry date: Sep 29, 2024

Classification

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

Abstract

The present invention refers to a continuous process for the manufacture of methyl mercaptan using Mo—O—K-based catalysts. It is further described that the total selectivity of methylmercaptan can be increased by at least 1% by lowering the total gas hourly space velocity. The invention further refers to a process for the preparation of a solid, preformed catalyst system.