Alkoxylation method of fatty acid alkyl esters

摘要

The present invention is directed towards a method of preparing alkoxylated fatty acid alkyl estersin a one-pot alkoxylation reaction in the presence of a catalyst which is an alkaline earth metal oxide/mineral acid combination, preferably a barium oxide/sulfuric acid combination, or a Lewis acid, preferably Sn Cl4, comprising the steps of: a) providing a fatty acid alkyl ester, b) adding a catalyst to said fatty acid alkyl ester to obtain a first mixture, wherein said catalyst is an alkaline earth metal oxide/mineral acid combination or a Lewis acid, c) adding one or more alkylene oxides to said first mixture to obtain a second mixture and (d) isolating the alkoxylated fatty acid alkyl ester.

主权项

1. A method for preparing an alkoxylated fatty acid alkyl ester in a one-pot reaction comprising the steps of:
(a) providing a fatty acid alkyl ester, (b) adding a catalyst to said fatty acid alkyl ester to obtain a first mixture, wherein said catalyst is an alkaline earth metal oxide/mineral acid combination or a Lewis acid that is a halide of the elements of the 3rd an 4th main group and 4th and 8th secondary group of the periodic system of elements, (c) adding one or more alkylene oxides to said first mixture to obtain a second mixture and (d) isolating the alkoxylated fatty acid alkyl ester.