Process for the hydroformylation of olefinically unsaturated compounds

US5756854A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

• Helmut Bahrmann · Hamminkeln, DE
• Peter Lappe · Dinslaken, DE
• Bernhard Fell · Aachen, DE
• Zhigao Xia · Aachen, DE
• Subba Kanagasabapathy · Pune, IN

Key dates

• Filing date: Aug 26, 1996
• Grant date: May 26, 1998
• Expiry date: Aug 26, 2016

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P20/584
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A process for the hydroformylation of olefinically unsaturated compounds whose hydroformylation products are insoluble or only sparingly soluble in water, comprising reacting the olefinically unsaturated compounds at 60.degree. to 180.degree. C. and 1 to 35 MPa with carbon monoxide and hydrogen in a homogeneous phase in a polar organic solvent and in the presence of a catalyst system comprising a rhodium carbonyl compound and a salt of a sulfonated or carboxylated organic monophosphine or polyphosphine, which salt is soluble both in the polar organic solvent and in water, distilling off the polar organic solvent from the reaction mixture and separating the catalyst system from the distillation residue by extraction with water.