Process for preparing epsilon-caprolactone

US8217186B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Rolf Pinkos · Bad Dürkheim, DE
• Gerd-Dieter Tebben · Mannheim, DE
• Daniel Breuninger · Frankenthal (Pfalz), DE
• Tilman Sirch · Schifferstadt, DE
• Christophe Bauduin · Ludwigshafen, DE
• Maria Guixa Guardia · Mannheim, DE
• Thomas Krug · Worms, DE

Key dates

• Filing date: Dec 10, 2008
• Grant date: Jul 10, 2012
• Expiry date: Jun 20, 2029

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07D313/04
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The invention relates to a process for preparing ε-caprolactone from 6-hydroxycaproic ester in the gas phase in the presence of activated carbon as a catalyst and subsequent distillation.