Abstract: 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): R1OH ??(I) in which R1 is 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 C16-C18 portions, fractionating the C16-C18 fatty 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.

Abstract: Alkyl-substituted butenols having the formula (I): R1—CH2—CH?CR2—CH2OH ??(I) wherein R1 is a saturated or olefinically unsaturated alkyl or cycloalkyl group having from 4 to 16 carbon atoms and wherein R1 is optionally substituted by an alkyl, cycloalkyl, aryl or alkaryl having up to 12 carbon atoms; R2 is 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): R1—CH2—CHO ??(II) wherein R1 has 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° C. and under a hydrogen pressure of from 1 to about 300 bar.

Abstract: 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): R1OH ??(I) in which R1 is 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 C16-distillate and a mainly unsaturated C16/18-bottom product; and (b) hydrogenating the bottom product with retention of the double bonds to give the corresponding alcohols.

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 C8-18 palm kernel oil fatty acid methyl ester; (b) fractionally distilling said C8-18 palm kernel oil fatty acid methyl ester to form a C8-14 head product and a C16-18 bottom product; (c) fractionally distilling the C16-18 bottom product to form a short-chain C16 head product and a long-chain and unsaturated C18 bottom product; (d) fractionally distilling the long-chain and unsaturated C18 bottom 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 st

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 C8-18 palm kernel oil fatty acid methyl ester; (b) fractionally distilling said C8-18 palm kernel oil fatty acid methyl ester to form a C8-14 head product and a C16-18 bottom product; (c) fractionally distilling the C16-18 bottom product to form a short-chain C16 head product and a long-chain and unsaturated C18 bottom product; (d) fractionally distilling the long-chain and unsaturated C18 bottom 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 st

Abstract: Fatty acids, esters of fatty acids and naturally occurring triglycerides are continuously hydrogenated to fatty alcohols in a fixed-bed reactor in the presence of hydrogen in excess and hydrogenation catalysts under static pressures of 200 to 300 bar and at temperatures of 80 to 150° C. The liquid product is cooled and the excess hydrogen is returned to the reactor entrance by a gas circulation pump as a recycle gas after separation of the liquid product. The expense involved in cooling and reheating the recycle gas is eliminated without any reduction in the quality of the fatty alcohol produced providing the recycle gas is returned to the reactor entrance without reheating. The fatty alcohol produced contains a minimum amount of diol.

Abstract: 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.

Abstract: 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.

Abstract: 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):

Abstract: 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):

Abstract: 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.

Abstract: A composition useful as a release agent for hydraulic binders is provided. The composition comprises water, an oil component comprising a water-immiscible monohydric alcohol component liquid at temperatures of 5.degree. to 15.degree. C. and selected from the group consisting of unsaturated fatty alcohols containing 12 to 22 carbon atoms and having iodine values of 40 to 170, Guerbet alcohols containing 16 to 28 carbon atoms, oxoalcohols containing 8 to 15 carbon atoms, and saturated alcohols containing 6 to 10 carbon atoms, and 0.5 to 5% by weight of an emulsifier, based on the oil component. The release agent is particularly useful for the treatment of formwork material in concrete construction.

Abstract: 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.