Process for producing fatty acid alkyl ester

Details Process for producing fatty acid alkyl ester Process for producing fatty acid alkyl ester

2005-06-28

2009-02-10

Sullivan, Daniel M (Department: 1621)

Organic compounds -- part of the class 532-570 series

Organic compounds

Fatty compounds having an acid moiety which contains the...

C554S174000, C568S899000

Reexamination Certificate

active

07488837

ABSTRACT:
The present invention relates to a process for preparing an alkyl ester of a fatty acid, including the steps of carrying out an esterification reaction between a free fatty acid contained in a fat or oil and an alcohol; carrying out a transesterification reaction between a fat or oil and an alcohol; and refining an alkyl ester of a fatty acid, wherein at least any one of three steps is carried out in a corresponding step selected from the steps of (a) contacting a fat or oil and an alcohol with a resin foamed article to which a catalyst containing fine strongly acidic particles is supported or a resin foamed article modified to be strongly acidic, and carrying out an esterification reaction between a free fatty acid in the fat or oil and the alcohol; (b) contacting a fat or oil and an alcohol with a resin foamed article to which a catalyst containing fine alkali particles is supported, and carrying out a transesterification reaction between the fat or oil and the alcohol; and (c) contacting a reaction mixture obtained by the transesterification reaction with a resin foamed article to remove impurities via adsorption, and refining an alkyl ester of a fatty acid.

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Schuchardt, U. et al., Transesterification of Vegetable Oils: a Review, 1998, Journal of Brazilian Chemical Society, vol. 9, No. 1, pp. 200-202, 207, 208.
Usmani et al., Porous Ures/Formaldehyde Polymers, Journal of Scientific and Industrial Research, 1980, 39(10), pp. 555 to 562.

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