Method for producing technical oleic acid methyl esters

Details Method for producing technical oleic acid methyl esters Method for producing technical oleic acid methyl esters

2006-06-20

2006-06-20

Carr, Deborah D. (Department: 1621)

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

Organic compounds

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

C514S724000, C514S739000, C568S881000, C568S884000, C554S224000

Reexamination Certificate

active

07064223

ABSTRACT:
A process for making technical oleic acid methyl esters having a stearic acid methyl ester content of less than about 2% by weight, and a palmitic acid methyl ester content of less than about 5%, comprising: (a) providing a C8-18palm kernel oil fatty acid methyl ester; (b) fractionally distilling said C8-18palm kernel oil fatty acid methyl ester to form a C8-14head product and a C16-18bottom product; (c) fractionally distilling the C16-18bottom product to form a short-chain C16head product and a long-chain and unsaturated C18bottom product; (d) fractionally distilling the long-chain and unsaturated C18bottom product to form a predominantly unsaturated head product having a high palmitic acid methyl ester content and a predominantly unsaturated bottom product have a minimal palmitic acid methyl ester content; and (e) fractionally distilling the predominantly unsaturated bottom product have a minimal palmitic acid methyl ester content to form a head product rich in oleic acid methyl ester and poor in stearic acid methyl ester and a bottom product rich in both oleic acid methyl ester and stearic acid methyl ester.

REFERENCES:
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H. Schmid, “Möglichkeiten der Fettchemie für die Schmlermittelindustrie”, Fett Wissenschaft Technologie—Fat Science Technology, vol. 89, No. 6, 1987, pp. 237-248′; XP002232102.

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