Selective hydrogenation of olefinically unsaturated carbonyl compounds

US6916964B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Hans-Georg Gobbel · Kallstadt, DE
• Till Gerlach · Ludwigshafen, DE
• Frank Funke · Bischofswerda, DE
• Klaus Ebel · Lampertheim, DE
• Signe Unverricht · Mannheim, DE
• Gerd Kaibel · Lampertheim, DE

Key dates

• Filing date: Dec 4, 2002
• Grant date: Jul 12, 2005
• Expiry date: Dec 10, 2023

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07B2200/07
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The present invention relates to a continuous process for the selective hydrogenation of olefinically unsaturated carbonyl compounds to give unsaturated alcohols in particular of citral to give a mixture of geraniol and nerol, in a reactor containing a liquid phase, in which at least one catalyst is suspended, and which can additionally contain a gas phase, wherein the liquid phase and, if present, the gas phase are passed through a device in the reactor having openings or channels.