Process for epoxidizing propene

US7786317B2 · kind B2 · utility

Assignees

• BASF SE
• THE DOW CHEMICAL COMPANY · US

Inventors

• Hans-Georg Goebbel · Kallstadt, DE
• Peter Bassler · Viernheim, DE
• Joaquim Henrique Teles · Waldsee, DE
• Peter Rudolf · Ludwigshafen, DE
• Ulrich Mueller · Hamburg, DE
• Anna Forlin · Vigonza, IT
• Malte Schulz · Stade, DE
• Meinolf Weidenbach · Stade, DE

Key dates

• Filing date: Dec 18, 2006
• Grant date: Aug 31, 2010
• Expiry date: Jan 6, 2027

Classification

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

Abstract

The present invention provides a process for the epoxidation of propene which comprises reacting propene with hydrogen peroxide in the presence of methanol as solvent and a titanium zeolite catalyst, the process further comprising separating propylene oxide from the reaction mixture to obtain a mixture comprising methanol, water, at least one carboxylic acid and at least one carbonyl compound, wherein the at least one carboxylic acid is at least partially neutralized, said process optionally comprising a hydrogenation stage.