Methods of making alkyl esters
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United States of America Patent
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Aug 3, 2010
Grant Date -
Nov 6, 2008
app pub date -
May 4, 2007
filing date -
May 4, 2007
priority date (Note) -
Expired
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Abstract
A method comprising contacting an alcohol, a feed comprising one or more glycerides and equal to or greater than 2 wt % of one or more free fatty acids, and a solid acid catalyst, a nanostructured polymer catalyst, or a sulfated zirconia catalyst in one or more reactors, and recovering from the one or more reactors an effluent comprising equal to or greater than about 75 wt % alkyl ester and equal to or less than about 5 wt % glyceride.
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