摘要:
Fatty alcohols of the formula I R.sup.1 OH (I) wherein R.sup.1 is a saturated or unsaturated, linear or branched aliphatic radical having from about 8 to about 22 carbon atoms are made by an improvement in the process which comprises hydrogenating a fatty acid, a fatty acid methyl ester or a combination thereof to form a fatty alcohol. The improvement comprises removing a head fraction from the fatty acid, the fatty acid methyl ester or the fatty alcohol in such a quantity that the fatty alcohol has an iodine value of from about 20 to about 110 and less than about 4.5% by weight of conjugated compounds.
摘要:
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.
摘要:
A process for the production of a mixture of substantially odorless fatty alcohol ethersulfate salts corresponding to formula (I):R.sup.1 --(OCH.sub.2 CH.sub.2).sub.n --O--SO.sub.3 X (I)in whichR.sup.1 is an alkyl radical containing from 6 to 18 carbon atoms,n is a number of from 1 to 10, andX is an alkali metal, alkaline earth metal, ammonium, or alkanolammonium ion,comprising the steps ofA) ethoxylating a fatty alcohol mixture in which the content of components having a boiling point below 235.degree. C. is not more than 0.5% by weight, based on the weight of the fatty alcohol mixture;B) sulfating the fatty alcohol ethoxylate mixture from step A; andC) neutralizing the sulfated fatty alcohol ethoxylate mixture from step B to form said mixture of substantially odorless fatty alcohol ethersulfate salts.
摘要:
A process for producing unsaturated fatty compounds having improved low-temperature properties bya) splitting lauric oils into fatty acids and glycerol,b) subjecting the fatty acids to fractional crystallization to obtain a fraction of unsaturated fatty acids, andc) hydrogenating the unsaturated fatty acids, optionally after converting the unsaturated fatty acids into their lower alkyl esters, to form unsaturated fatty alcohols having an iodine value of from about 85 to about 100.
摘要:
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.
摘要:
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.