Process for the preparation of practically formic acid-free acetic acid

US4380663A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

• Gunter Roscher · Kelkheim, DE
• Helmut Schaum · Bad Soden am Taunus, DE
• Heinz Schmitz · Bochum, DE

Key dates

• Filing date: Oct 20, 1977
• Grant date: Apr 19, 1983
• Expiry date: Oct 20, 1997

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C51/235
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

A process is provided for the preparation of practically formic acid-free acetic acid by oxidation of acetaldehyde in the liquid phase with oxygen or oxygen-containing gases in the presence of mixtures of cobalt, nickel and manganese salts as catalysts.