Process for separating the product gas mixture from the catalytic synthesis of methyl mercaptan

US5866721A · kind A · utility

Assignee

• Degussa AG · DE

Inventors

• Willi Hofen · Rodenbach, DE
• Wolfgang Boeck · Langenselbold, DE
• Stephan Rautenberg · Hanau, DE
• Joerg Sauer · Rodenbach, DE
• Dietrich Arntz · Oberursel, DE
• Ralf Goedecke · Rodenbach, DE
• Wolfgang Taugner · Schongau, DE
• Raymund Sonnenschein · Frankfurt, DE

Key dates

• Filing date: Jun 30, 1997
• Grant date: Feb 2, 1999
• Expiry date: Jun 30, 2017

Classification

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

Abstract

A process for separating the product gas mixture from the catalytic synthesis of methyl mercaptan. Because of improved separation of the product gas mixture into its components, less hydrogen sulfide and methyl mercaptan are lost in discharging the inert gases than in the known process. The inert gases can be burned without after-treatment of the exhaust gas. Likewise, the process water that is discharged is less contaminated with polysulfides.