Processes for producing sterols from fatty acid production residues

US6956125B2 · kind B2 · utility

Assignee

• Cognis Deutschland GmbH & Co. KG · DE

Inventors

• Gerhard Wollmann · Hilden, DE
• Joerg Schwarzer · Hilden, DE
• Bernhard Gutsche · Hilden, DE

Key dates

• Filing date: Aug 7, 2001
• Grant date: Oct 18, 2005
• Expiry date: Feb 2, 2023

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07J9/00
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The invention relates to a process for the production of sterols from fatty acid distillation residues, characterized in that the partial glycerides are subjected to a first transesterification step under mild conditions and, after working up and the removal of impurities, the sterol esters are subjected to a second transesterification step under more extreme conditions.