Cognis Deutschland Gmbh & Co. Kg

Kao Corporation

Norbert Klein

Alfred Westfechtel

Norbert Huebner

Stephan Heck

Lothar Friesenhagen

Horst-Dieter Komp

Gerrit Pelzer

Christiane Boehr

Ansgar Behler

Thomas Markert

C William Blewett

Markus Schneider

Thomas B Downing

Steven A Kennedy

Unsaturated coconut and/or palm nut fatty alcohols having an iodine number in the range from 65 to 85, which essentially comprise unsaturated fatty alcohols and mixtures of saturated fatty alcohols of the formula (I):ROH &#x2003;&#x2003;(I)in which Ris a saturated or unsaturated, linear or branched alkyl radical having 12 to 20 carbon atoms, obtainable by fractionating coconut and/or palm nut fatty acid methyl esters to obtain a fraction containing predominantly C-Cportions, fractionating the C-Cfatty acid methyl ester fraction into a predominantly saturated distillate and a predominantly unsaturated bottom product, and hydrogenating the bottom product with retention of the double bonds to give the corresponding alcohols; are disclosed.

Process for making unsaturated coconut and/or palm nut fatty alcohols

Alkyl-substituted butenols having the formula (I):R&#x2014;CH&#x2014;CH&#x2550;CR&#x2014;CHOH &#x2003;&#x2003;(I)wherein Ris a saturated or olefinically unsaturated alkyl or cycloalkyl group having from 4 to 16 carbon atoms and wherein Ris optionally substituted by an alkyl, cycloalkyl, aryl or alkaryl having up to 12 carbon atoms; Ris hydrogen or an alkyl group having from 1 to about 6 carbon atoms are produced by a process which comprises: (1) reacting an aldehyde of the formula (II):R&#x2014;CH&#x2014;CHO &#x2003;&#x2003;(II)wherein Rhas the same meaning as in formula (I), with the corresponding lower aldehyde to form an unsaturated aldehyde in an inert organic solvent; (2) continuously contacting an optionally calcined copper/zinc catalyst with the unsaturated aldehyde under isothermal conditions at temperatures of from about 45 to about 60&#xb0; C. and under a hydrogen pressure of from 1 to about 300 bar.

Method for producing alkyl-substituted butenols

Unsaturated palm oil fatty alcohols with an iodine number in the range from 65 to 85, which contain substantially unsaturated fatty alcohols and mixtures of saturated fatty alcohols of the formula (I):ROH &#x2003;&#x2003;(I)in which Ris a saturated or unsaturated, linear or branched alkyl radical having 14 to 20 carbon atoms, are obtained by (a) fractionating palm oil fatty acid methyl esters into a mainly saturated C-distillate and a mainly unsaturated C-bottom product; and (b) hydrogenating the bottom product with retention of the double bonds to give the corresponding alcohols.

Unsaturated palm oil fatty alcohols

A process for making branched, substantially unsaturated fatty alcohols involving: (a) providing a C fatty acid; (b) dimerizing the C fatty acid to form a monomer fraction containing branched, substantially unsaturated fatty acids; (c) removing the monomer fraction; (d) esterifying the branched, substantially unsaturated fatty acids contained in the monomer fraction into branched, substantially unsaturated fatty acid methyl esters; and (e) hydrogenating the branched, substantially unsaturated fatty acid methyl esters with their double bonds intact, to form the branched, substantially unsaturated fatty alcohols.

Process for making branched, substantially unsaturated fatty alcohols

Growing community of inventors

Mettmann, Germany

Norbert Klein