Process for producing propylene oxide

US7863468B2 · kind B2 · utility

Assignees

• BASF SE
• THE DOW CHEMICAL COMPANY · US

Inventors

• Goetz-Peter Schindler · Mannheim, DE
• Christian Walsdorff · Ludwigshafen, DE
• Reinhard Koerner · Bischofswerda, DE
• Hans-Georg Goebbel · Kallstadt, DE

Key dates

• Filing date: Jun 20, 2006
• Grant date: Jan 4, 2011
• Expiry date: Oct 1, 2026

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07D301/12
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The present invention relates to a process for producing propylene oxide comprising (I) reacting propene with hydrogen peroxide in the presence of a catalyst to give a mixture (GI) comprising propylene oxide, unreacted propene, and oxygen; (II) separating propylene oxide from mixture (GI) to give a mixture (GII) comprising propene and oxygen; (III) reducing the oxygen comprised in mixture (GII) at least partially by reaction with hydrogen in the presence of a catalyst comprising Sn and at least one noble metal.