Patent ID: 8178326
Filing Date: 2012-05-15
Classification: C10G,C10L,C12P,Y02E,Y02P

Abstract:
1. A process for the production of esters of fatty acids and C1-C3 alkyl alcohols from a fatty material containing free fatty acids, comprising the steps of: (a) providing a reaction mixture that comprises free fatty acids, a lipase and one or more polyhydric alcohols; (b) allowing said reaction mixture to react under formation of esters of fatty acids and polyhydric alcohols until the free fatty acid content has decreased by more than a factor of 2; (c) separating the reaction mixture into a fatty phase and an alcoholic phase; (d) reducing the free fatty acid content of said fatty phase to an acid value below 2 (mg KOH per g) by subjecting it to a process of vacuum stripping or by blending it with a glyceride oil having an acid value below 2 (mg KOH per g) or by a combination of both; (e) transesterifying the fatty material resulting from step (d) with a C1-C3 alkyl alcohol.