Cognis France S.a.

Cognis Oleochemicals Gmbh

Cognis France S.a.s.

Thomas Kapala

Georg Fieg

Bernhard Gutsche

Stephan Heck

Andreas Heidbreder

Albrecht Schwerin

Jean Rigal

Horst Josten

Ingomar Mrozek

Ralf Christoph

Volker Winterhoff

Andreas Suessenbach

Uwe Mueller

Nataly Lausberg

Uwe Müller

The present invention relates to a new process for obtaining fatty acids with improved color, odor and heat stability which is characterized in that:

Process for obtaining fatty acids with improved odor, color and heat stability

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 Cpalm kernel oil fatty acid methyl ester; (b) fractionally distilling said Cpalm kernel oil fatty acid methyl ester to form a Chead product and a Cbottom product; (c) fractionally distilling the Cbottom product to form a short-chain Chead product and a long-chain and unsaturated Cbottom product; (d) fractionally distilling the long-chain and unsaturated Cbottom 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.

Method for producing technical oleic acid methyl esters

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Ratingen, Germany

Thomas Kapala