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Title: Methods for suppressing isomerization of olefin metathesis products

A method for suppressing isomerization of an olefin metathesis product produced in a metathesis reaction includes adding an isomerization suppression agent that includes nitric acid 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. Methods of refining a natural oil are described.
Inventors:
;
Issue Date:
OSTI Identifier:
1224450
Assignee:
Elevance Renewable Sciences, Inc. (Woodridge, IL) DOEEE
Patent Number(s):
9,169,174
Application Number:
13/335,495
Contract Number:
EE0002872
Resource Relation:
Patent File Date: 2011 Dec 22
Research Org:
Elevance Renewable Sciences, Inc., Woodridge, IL (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Works referenced in this record:

Nitric Acid, Nitrous Acid, and Nitrogen Oxides
book, June 2000
  • Thiemann, Michael; Scheibler, Erich; Wiegand, Karl Wilhelm
  • Ullmann's Encyclopedia of Industrial Chemistry
  • DOI: 10.1002/14356007.a17_293

Improved cross-metathesis of acrylate esters catalyzed by 2nd generation ruthenium carbene complexes
journal, December 2005

Molybdenum and Tungsten Imido Alkylidene Complexes as Efficient Olefin-Metathesis Catalysts
journal, October 2003
  • Schrock, Richard R.; Hoveyda, Amir H.
  • Angewandte Chemie International Edition, Vol. 42, Issue 38, p. 4592-4633
  • DOI: 10.1002/anie.200300576

Developments in the chemistry of tris(hydroxymethyl)phosphine
journal, March 2010
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  • DOI: 10.1016/j.ccr.2009.07.008

A simple oxidative procedure for the removal of ruthenium residues from metathesis reaction products
journal, January 2010

Purification technique for the removal of ruthenium from olefin metathesis reaction products
journal, May 1999

Phase-transfer catalytic reaction of 2,4,6-tribromophenol and dibromomethane: effect of potassium hydroxide
journal, December 1999

Double bond oxidative cleavage of monoenic fatty chains
journal, April 2003