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Methods for suppressing isomerization of olefin metathesis products

United States Patent

September 22, 2015
View the Complete Patent at the US Patent & Trademark Office
A method for suppressing isomerization of an olefin metathesis product produced in a metathesis reaction includes adding an isomerization suppression agent to a mixture that includes the olefin metathesis product and residual metathesis catalyst from the metathesis reaction under conditions that are sufficient to passivate at least a portion of the residual metathesis catalyst. The isomerization suppression agent is phosphorous acid, a phosphorous acid ester, phosphinic acid, a phosphinic acid ester or combinations thereof. Methods of refining natural oils are described.
Firth; Bruce E. (Woodridge, IL), Kirk; Sharon E. (New Lenox, IL), Gavaskar; Vasudeo S. (Chicago, IL)
Elevance Renewable Sciences, Inc. (Woodridge, IL)
13/ 335,466
December 22, 2011
FEDERALLY SPONSORED RESEARCH AND DEVELOPMENT This invention was made with government support under Contract No. DE-EE0002872 awarded by Department of Energy. The government has certain rights in the invention.