Patent ID: 7745652
Filing Date: 2010-06-29
Classification: C07C,C07D,Y02P

Abstract:
1. A fatty acid or fatty acid ester composition comprising one or more unsaturated fatty acids or one or more unsaturated fatty acid esters, characterized as comprising less than 1.5 milliequivalents of metathesis catalyst poison(s) per kilogram (meq/kg) of fatty acid or fatty acid ester composition, wherein the metathesis catalyst poison comprises one or more organic hydroperoxides; the feedstock composition being prepared by hydrolyzing a seed oil with water to obtain one or more unsaturated fatty acids or transesterifying a seed oil with a C 1-8 alkanol to prepare one or more unsaturated fatty acid esters of the C 1-8 alkanol, and thereafter contacting the one or more unsaturated fatty acids or one or more unsaturated fatty acid esters with an adsorbent to remove the metathesis catalyst poison(s) to a concentration of less than 1.5 meq/kg.