Continuous production of n-butylacrylate free from dibutylether

US4012439A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

• Heinz Erpenbach · Cologne, DE
• Klaus Gehrmann · Lechenich, DE
• Herbert Joest · Hürth, DE
• Peter Zerres

Key dates

• Filing date: Oct 14, 1975
• Grant date: Mar 15, 1977
• Expiry date: Oct 14, 1995

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C67/08
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

N-Butylacrylate is produced by reacting acrylic acid with n-butanol in liquid phase in contact with an acid cation exchanger as a catalyst. To this end, the acrylic acid and butanol are reacted in a molar ratio from 1:1 to 1:2.5, at 80.degree. to 130.degree. C, under a pressure from 3 to 15 atmospheres gauge, and for 20 - 90 minutes.