Process for producing wax ester from dihydroxy fatty acid

Details Process for producing wax ester from dihydroxy fatty acid Process for producing wax ester from dihydroxy fatty acid

2006-10-24

2006-10-24

Carr, Deborah D. (Department: 1621)

Chemistry: molecular biology and microbiology

Micro-organism, tissue cell culture or enzyme using process...

Preparing oxygen-containing organic compound

C554S167000

Reexamination Certificate

active

07125694

ABSTRACT:
A process for producing wax ester comprising of esterifying dihydroxy fatty acid preferably dihydroxystearic acid with at least one alcohol in the presence of lipase as a catalyst which is then remove by filtration. The filtered catalyst could be reuse and provides a number of cost advantages. In the preferred embodiment of the present invention, the dihydroxystearic acid is derived from palm based oleic acid and the alcohol contains 8 to 18 carbon atoms per molecules.

REFERENCES:
patent: 5852080 (1998-12-01), Philbin et al.
Swern et al., JOACS, vol. 67, pp. 902-903, 1945.
Awang et al., Biotechnology Letters, vol. 26, pp. 11-14, Jan. 2004.
WPIDS abstr. of SG 86353, 2002.

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