Process for obtaining isobutene from C.sub.4 -hydrocarbon mixtures containing isobutene

US4287379A · kind A · utility

Assignee

• BASF SE

Inventors

• Erwin Brunner · Meiningen, DE
• Eckart Schubert · Ludwigshafen, DE
• Alfred Lindner · Frankenthal (Pfalz), DE
• Franz Merger · Bischofswerda, DE
• Klaus Volkamer · Bischofswerda, DE
• Max Strohmeyer · Schifferstadt, DE
• Gerhard Sandrock · Bischofswerda, DE

Key dates

• Filing date: Apr 7, 1980
• Grant date: Sep 1, 1981
• Expiry date: Apr 7, 2000

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C41/06
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

A process for obtaining isobutene from a C.sub.4 -hydrocarbon mixture containing isobutene, by reacting the mixture with a primary alcohol in the presence of an acid condensing agent and decomposing the resulting tertiary ether in the presence of an acid catalyst at an elevated temperature, wherein a primary C.sub.3 - or C.sub.4 -alcohol is used.