Metathesis of unsaturated fatty acid esters or unsaturated fatty acids with lower olefins

US7119216B2 · kind B2 · utility

Assignee

• DOW GLOBAL TECHNOLOGIES LLC · US

Inventors

• Thomas H. Newman · Midland, US
• Cynthia L. Rand · Sanford, US
• Kenneth A. Burdett · Midland, US
• Bob R. Maughon · Midland, US
• Donald L. Morrison · Hurricane, US
• Eric P. Wasserman · Hopewell, US

Key dates

• Filing date: Feb 27, 2002
• Grant date: Oct 10, 2006
• Expiry date: Oct 27, 2023

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P20/10
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

An olefin metathesis process involving contacting an unsaturated fatty acid ester or unsaturated fatty acid, such as methyloleate or oleic acid, with a lower olefin, preferably ethylene, in the presence of a metathesis catalyst so as to prepare a first product olefin, preferably, a reduced chain α-olefin, such as methyl-9-decenoate or 9-decenoic acid, respectively. The metathesis catalyst contains ruthenium or osmium and a chelating ligand, preferably, a chelating ligand containing a carbene moiety and a second donor moiety of a Group 15 or 16 element Optionally, the catalyst can be supported on a catalyst support, such as, a cross-linked polymeric resin.