METHOD FOR MANUFACTURING CALCIUM SALTS OF HIGHLY UNSATURATED FATTY ACIDS

Title:

METHOD FOR MANUFACTURING CALCIUM SALTS OF HIGHLY UNSATURATED FATTY ACIDS

Document Type and Number:

WIPO Patent Application WO2002026666

Kind Code:

A3

Abstract:

A method for the preparation of free-flowing calcium salts of highly unsaturated fatty acids, which includes the steps of: (a) providing a fatty acid feedstock consisting essentially of: (i) from about 50 to 95% by weight of unsaturated C:16-C:22 fatty acids; (ii) from about 5 to about 40% by weight of saturate C:14-C:22 fatty acids; and (iii) no more than about 6% by weight of moisture, insolubles and unsaponifables, with no more than about 20% by weight of the unsaturated feedstock being in the form of glycerides; (b) adding to the unsaturated feedstock from about 1.0 to about 2.5 equivalents of calcium oxide relative to the unsaturated feedstock, so that a reactive admixture is formed; and (c) adding to the reactive admixture from about 2 to about 5 equivalents of water relative to the calcium oxide, so that the calcium oxide hydrates and neutralizes the fatty acids to form the calcium salts; provided that when less than 1.75 equivalents of calcium oxide is added, the unsaturated feedstock comprises at least 25% by weight of the saturated fatty acids and is heated to a temperature above its melting point before the step of adding the calcium oxide. Highly unsaturated fatty acid calcium salts prepared by this method are also disclosed.

Inventors:

STROHMAIER GEORGE K
FREDERIKSEN EILER D

Application Number:

PCT/US2001/030573

Publication Date:

January 30, 2003

Filing Date:

October 01, 2001

Export Citation:

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Assignee:

NOREL ACQUISITION CORP (US)

International Classes:

A23K1/16; C07C51/41; C07C57/02; C11C1/04; C11C3/08; (IPC1-7): C07C51/00

Foreign References:

US5250307A

1993-10-05

Other References: