Methods for oligomerizing olefins with chromium pyridine thioether catalysts
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United States of America Patent
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Nov 29, 2011
Grant Date -
Aug 21, 2008
app pub date -
Dec 13, 2007
filing date -
Jan 8, 2007
priority date (Note) -
Expired
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Abstract
The present invention provides a method of producing oligomers of olefins, comprising reacting olefins with a chromium based catalyst under oligomerization conditions. The catalyst can be the product of the combination of a chromium compound and a pyridyl thioether compound. In particular embodiments, the catalyst compound can be used to trimerize or tetramerize ethylene to 1-hexene, 1-octene, or mixtures of 1-hexene and 1-octene.
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