Cognis Deutschland Gmbh & Co. Kg

Cognis France S.a.

Cognis Oleochemicals Gmbh

Cognis France S.a.s.

Georg Fieg

Bernhard Gutsche

Sabine Both

Erich Reuter

Albrecht Schwerin

Thomas Kapala

Stephan Heck

Andreas Heidbreder

Levent Yueksel

Jean Rigal

Juergen Falkowski

Horst Josten

Ingomar Mrozek

Richard Ridinger

Volker Winterhoff

Uwe Mueller

Ralf Christoph

Frank Bartschick

Andreas Suessenbach

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

Processes for producing branched compounds are described wherein a carbonyl compound is condensed in the presence of a catalyst selected from the group consisting of acids and bases, to form an &#x3b1;,&#x3b2;-unsaturated condensation product; and the &#x3b1;,&#x3b2;-unsaturated condensation product is hydrogenated.

Processes for producing branched compounds via condensation and hydrogenation

Processes for refining dialkyl carbonate-containing compositions are described, wherein a composition comprising a dialkyl carbonate is provided; and the composition is subjected to a rectification wherein low-boiling impurities are removed, and a rectification wherein high-boiling impurities are removed; and subsequently to a deodorization wherein medium-boiling impurities are removed.

Processes for refining compositions containing dialkyl carbonates

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

Guerbet alcohols of the formula (I)CH(CH)CHRCHOH&#x2003;&#x2003;(I)wherein Ris a linear alkyl radical having n-1 carbon atoms and n is a number of from 5 to 11 are produced by a process which comprises contacting a fatty alcohol of the formula (II)ROH&#x2003;&#x2003;(II)wherein Ris a linear alkyl radical having from 6 to 12 carbon atoms with a carbonyl compound and an alkall metal hydroxide. The use of heavy metal catalysts usually associated with the production of Guerbet alcohols is avoided thereby reducing the potential for heavy metal pollution of the environment.

Method for producing guerbet alcohols

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Mettmann, Germany

Georg Fieg