Title: Methods for suppressing isomerization of olefin metathesis products

Abstract

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.

Inventors:

Firth, Bruce E.; Kirk, Sharon E.; Gavaskar, Vasudeo S.

Issue Date:

2015-09-22

Research Org.:

Elevance Renewable Sciences, Inc., Woodridge, IL (United States)

Sponsoring Org.:

USDOE

OSTI Identifier:

1221387

Patent Number(s):

9139493

Application Number:

13/335,466

Assignee:

Elevance Renewable Sciences, Inc. (Woodridge, IL)

Patent Classifications (CPCs):

C - CHEMISTRY C11 - ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES C11C - FATTY ACIDS FROM FATS, OILS OR WAXES

C - CHEMISTRY C11 - ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES C11B - PRODUCING

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C - CHEMISTRY C11 - ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES C11C - FATTY ACIDS FROM FATS, OILS OR WAXES

C11C3/10 - Ester interchange

C - CHEMISTRY C11 - ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES C11B - PRODUCING

C11B1/10 - by extracting

C - CHEMISTRY C07 - ORGANIC CHEMISTRY C07C - ACYCLIC OR CARBOCYCLIC COMPOUNDS

C07C11/02 - Alkenes

C - CHEMISTRY C11 - ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES C11B - PRODUCING

C11B3/006 - {by extraction}

C - CHEMISTRY C07 - ORGANIC CHEMISTRY C07C - ACYCLIC OR CARBOCYCLIC COMPOUNDS

C07C7/20 - Use of additives, e.g. for stabilisation

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DOE Contract Number:  

EE0002872

Resource Type:

Patent

Resource Relation:

Patent File Date: 2011 Dec 22

Country of Publication:

United States

Language:

English

Subject:

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY