Metathesis of unsaturated fatty acid esters or unsaturated fatty acids with lower olefins
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United States of America Patent
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Oct 10, 2006
Grant Date -
Mar 31, 2005
app pub date -
Feb 27, 2002
filing date -
Mar 26, 2001
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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 .alpha.-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.
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