Patent 7582784 was granted and assigned to Rohm and Haas on September, 2009 by the United States Patent and Trademark Office.
A method for transesterification of triglycerides, especially those containing free fatty acids, with methanol. The method uses a catalyst derived from an acidic ion exchange resin. The catalyst is contacted with a reaction mixture containing a triglyceride and methanol under conditions suitable for transesterification.