Henkel Kommanditgesellschaft Auf Aktien

Cognis Deutschland Gmbh & Co. Kg

Kao Corporation

Cognis France S.a.

Cognis France S.a.s.

Stephan Heck

Lothar Friesenhagen

Norbert Huebner

Guenther Demmering

Horst-Dieter Komp

Norbert Klein

Alfred Westfechtel

Ingo Wegener

Christiane Boehr

Bernhard Gutsche

Thomas Markert

Michael Koehler

Georg Fieg

Jean Rigal

Leonhard Wittich

Hans-Juergen Sladek

Gerrit Pelzer

Thomas Kapala

Hans Peter Kubersky

Juergen Falkowski

Markus Schneider

Volker Winterhoff

Uwe Mueller

Uwe Müller

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 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

Oxidic catalysts containing 20 to 25% by weight of aluminum and 40 to 50% by weight of zinc which are suitable for the production of unsaturated fatty alcohols containing 8 to 22 carbon atoms by hydrogenation of unsaturated fatty acids, fatty acid lower alkyl esters or unsaturated fatty acid glycerides are disclosed. A process for the production of the oxidic aluminum/zinc catalysts is also disclosed.

Oxidic aluminum/zinc catalysts and a process of producing unsaturated fatty alcohols

A composition useful as a parting agent for concrete formwork is provided. The composition comprises water; a completely or predominantly unsaturated fatty alcohol containing 6 to 22 carbon atoms and with an iodine value of 40 to 200; and an alkyl or alkenyl oligoglycoside having an alkyl or alkenyl group containing 4 to 22 carbon atoms, a sugar unit containing 5 or 6 carbon atoms and a degree of oligomerization of 1 to 10. The parting agent is particularly storage-stable at low temperatures.

Aqueous concrete parting agents

Release agents for hydraulic binders

C.sub.8-22 fatty alcohols are produced by a process which comprises contacting a triglyceride with hydrogen in the presence of a copper-zinc catalyst and in a reaction zone. The hydrogen pressure in the reaction zone is from about 200 to about 280 bar, the temperature of the entrance of the reaction zone is from about 200.degree. C. to about 230.degree. C., and the temperature of the exit of the reaction zone is from about 190.degree. C. to about 220.degree. C. The amount of 1,2-propanediol formed is optimized by the lower temperature of the exit portion of the reaction zone.

Process for the production of fatty alcohols

Growing community of inventors

Pulheim, Germany

Stephan Heck