Processes for producing conjugated linoleic acid

US7241910B2 · kind B2 · utility

Assignee

• Cognis Deutschland GmbH & Co. KG · DE

Inventors

• Alfred Westfechtel · Hilden, DE
• Wolfgang Albiez · Illertissen, DE
• Stefan Busch · Mülheim an der Ruhr, DE
• Lars Zander · Rommerskirchen, DE
• Peter Horlacher · Senden, DE

Key dates

• Filing date: Jul 29, 2003
• Grant date: Jul 10, 2007
• Expiry date: Jul 29, 2023

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C67/333
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Processes for producing conjugated linoleic acid are described which comprise: (a) isomerizing a linoleic acid lower alkyl ester in the presence of an alkali metal alcoholate to form a conjugated linoleic acid lower alkyl ester; (b) saponifying the conjugated linoleic acid lower alkyl ester in the presence of an aqueous lye to form a saponification product; and (c) neutralizing the saponification product with phosphoric acid.