Separation of propylene oxide from a mixture comprising propylene oxide and methanol

US7323579B2 · kind B2 · utility

Assignees

• BASF SE
• The Dow Chemical Company Legal Department Intellectual Property Section · US

Inventors

• Hans-Georg Gobbel · Kallstadt, DE
• Henning Schultz · Mannheim, DE
• Peter Schultz · Phoenix, US
• Renate Patrascu · Stade, DE
• Malte Schulz · Stade, DE
• Meinolf Weidenbach · Stade, DE

Key dates

• Filing date: Jul 7, 2004
• Grant date: Jan 29, 2008
• Expiry date: Dec 27, 2024

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07D301/32
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

A method of separating propylene oxide from a mixture (M) comprising 5 to 50 percent by weight propylene oxide and 50 to 85 percent by weight methanol, said method comprising