Alcoholysis of triacylglycerols by heterogeneous catalysis

摘要

Synthesis of fatty acid esers by alcoholysis,especially methanolysis of triacylglycerols was investigatd using metal salts ofamino acids as catalysts.The methanol to oilmolar ratio was 6:1.It could be shown that salts containing a quaternary amino or a highly basic group as e.g.a guanidino group have catalytic activity in alcoholysis.Some of these salts are insoluble inmonovalent alcohols,glycerol,and fatty acids esters and ae there fore suitable catalysts for heterogeneously catalysed alcoholysis.Zincsalts of arginine,carnitine or histidine ae among others suited for industrial use.These catalysts are also suitable for heterogeneously catalysed interesterification.