METHODS OF REFINING AND PRODUCING ISOMERIZED FATTY ACID ESTERS AND FATTY ACIDS FROM NATURAL OIL FEEDSTOCKS
申请人:ELEVANCE RENEWABLE SCIENCES, INC.
公开号:US20130204022A1
公开(公告)日:2013-08-08
Methods are provided for refining natural oil feedstocks and producing isomerized esters and acids. The methods comprise providing a C4-C18 unsaturated fatty ester or acid, and isomerizing the fatty acid ester or acid in the presence of heat or an isomerization catalyst to form an isomerized fatty ester or acid. In some embodiments, the methods comprise forming a dibasic ester or dibasic acid prior to the isomerizing step. In certain embodiments, the methods further comprise hydrolyzing the dibasic ester to form a dibasic acid. In certain embodiments, the olefin is formed by reacting the feedstock in the presence of a metathesis catalyst under conditions sufficient to form a metathesized product comprising olefins and esters, separating the olefins from the esters in the metathesized product, and transesterifying the esters in the presence of an alcohol to form a transesterified product having unsaturated esters.
提供了一种精制天然油原料和生产异构酯和酸的方法。该方法包括提供C4-C18不饱和脂肪酸酯或酸,并在热或异构化催化剂存在下异构化脂肪酸酯或酸以形成异构化脂肪酸酯或酸。在某些实施例中,该方法包括在异构化步骤之前形成二元酯或二元酸。在某些实施例中,该方法进一步包括水解二元酯以形成二元酸。在某些实施例中,烯烃是通过在丙烯酸酯催化剂存在下反应原料以形成包含烯烃和酯的交换产物,从交换产物中分离烯烃和酯,然后在醇存在下对酯进行酯交换反应以形成具有不饱和酯的酯交换产物来形成的。