Purification of carboxylates containing aldehydes, acetals and/or unsaturated compounds

US4523027A · kind A · utility

Assignee

• BASF SE

Inventors

• Rudolf Kummer · Bischofswerda, DE
• Heinz-Walter Schneider · Ludwigshafen, DE
• Volker Taglieber · Ludwigshafen, DE
• Franz-Josef Weiss · Schifferstadt, DE

Key dates

• Filing date: Jul 28, 1983
• Grant date: Jun 11, 1985
• Expiry date: Jul 28, 2003

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C67/60
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Carboxylates which contain aldehydes, acetals and/or unsaturated compounds and are obtained by reacting an olefinically unsaturated compound with carbon monoxide and an alkanol are purified by a process wherein the said carboxylates are treated with hydrogen at elevated temperatures in the presence of an acidic ion exchanger or zeolite doped with one or more metals of group VIII of the periodic table, and the resulting low and/or high boilers are separated off by distillation.