Method for the production of C5 aldehydes and propene from a C4 stream containing 1-butene and 2-butene

US7714179B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Marcus Sigl · Mannheim, DE
• Markus Schubert · Ludwigshafen, DE
• Jurgen Stephan · Mannheim, DE
• Rainer Papp · Speyer, DE
• Frank Poplow · Overath, DE

Key dates

• Filing date: Aug 6, 2005
• Grant date: May 11, 2010
• Expiry date: Mar 30, 2027

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C45/50
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Processes for preparing a C5 aldehyde and propene are disclosed, the processes comprising: (a) providing a feedstream, the feedstream comprising butane, 1-butene, 2-butene and 1,3-butadiene, the 1,3-butadiene present in the feedstream in an amount up to 1000 ppm; (b) contacting the feedstream with hydrogen and carbon monoxide in the presence of a hydroformylation catalyst to form a 2-butene-rich butane stream and a C5 aldehyde; (c) separating the 2-butene-rich butane stream and the C5 aldehyde; and (d) contacting the 2-butene-rich butane stream with ethene in the presence of a metathesis catalyst to form a propene-containing hydrocarbon stream.