摘要:
A process for the isolation and purification of essentially fatty acid mixtures, which in addition to the methyl branched fatty acids contain saturated and unsaturated, respectively straight chain as well as methyl branched, unsaturated fatty acids, in which the industrial fatty acid mixtures are first hydrogenated by catalysis and then the methyl branched saturated fatty acids are separated, and in which before the hydrogenation if necessary, a separation by the hydrophilization process is provided, this process produces the desired products with a high yield and purity.
摘要:
The invention is cleaning compositions containing Polyethylene-glycol ethers of the formulaR.sub.1 --(CH.sub.2 CH.sub.2 O).sub.n --R.sub.2 (1)in whichR.sub.1 is a straight-chain or branched alkyl- or alkenyl radical having from 20 to 28 carbon atomsR.sub.2 is an alkyl radical having from 4 to 8 carbon atoms and n is an integer from about 6 to about 20as a foam-suppressing additive. The cleaning compositions are stable over a broad temperature range and having low foaming characteristics particularly at about ambient temperatures.
摘要:
A highly effective surfactant mixture which is liquid at room temperature comprising:(1) from 50 to 84.degree. C. by weight ether alcohol corresponding to the general formulaR.sub.1 --O--[PO].sub.0-3 [EO].sub.6-8 H,(2) from 10 to 40% by weight ether alcohol corresponding to the formulaR.sub.2 --O--[PO].sub.0-3 [EO].sub.3-6 H,(3) from 0 to 10% by weight ethoxylation products of polyols which may be obtained by reaction of C.sub.12 -C.sub.18 1,2-epoxides with ethylene glycol, glycerol, trimethylol propane or neopentyl glycol,(4) from 0.1 to 10% by weith of an amino alcohol selected from(A)R.sub.3 --[EO].sub.0-4 N(CH.sub.2 CH.sub.2 OH).sub.2,orR.sub.3 --[EO].sub.0-4 NH--CH.sub.2 CHOH(B) the reaction product of C.sub.12 -C.sub.18 1,2-epoxide with mono- or diethanolamine,(C) reaction product of epoxidized oleyl or linoleyl alcohol with mono- or diethanolamine or(D) reaction product of compound (A), (B) or (C) with from 2 to 12 times the molar quantity of ethylene oxide, and(5) lower carboxylic acids in the quantity required to adjust a 1% aqueous solution to a neutral pH-value; wherein R.sub.1 is a C.sub.9 -C.sub.11 alkyl group, R.sub.2 is a C.sub.12 -C.sub.15 alkyl group, R.sub.3 is a C.sub.12 -C.sub.18 alkyl or alkenyl group, (EO) are ring-opened ethylene oxide residues and (PO) are ring-opened propylene oxide residues.
摘要:
Terminally blocked polyethoxylated fatty alcohols of the formula:R--O--(CH.sub.2 CH.sub.2 O).sub.n --R.sup.1 (I)wherein R is a linear or branched alkyl or alkenyl group having from 6 to 28 carbon atoms, R.sub.1 is a linear alkyl group having from 1 to 8 carbon atoms, and n is an integer having a value of from 2 to 12 are used as anti-foaming additives in the manufacture and/or processing of food stuffs as well as in fermentation processes.
摘要:
Water-soluble corrosion-inhibiting mixtures containing(a) one or more ammonium salts of fatty acids corresponding to the following general formula ##STR1## in which n=1 or 2 while R.sup.1, R.sup.2, R.sup.3 and R.sup.4 may be the same or different and represent hydrogen, unbranched or branched C.sub.1 -C.sub.6 alkyl groups, C.sub.1 -C.sub.6 hydroxyalkylene groups or C.sub.1 -C.sub.8 aminoalkylene groups and R.sup.5 represents C.sub.6 -C.sub.10 alkyl groups, and(b) one or more polyol fatty acids and/or salts thereof corresponding to the following general formula ##STR2## in which R.sup.6 is a C.sub.1 -C.sub.19 alkyl or alkylene group and R.sup.7 represents an organic residue formed from a dihydroxy or polyhydroxy compound by elimination of a hydroxyl group, M.sup.(+) =H.sup.(+), Na.sup.(+), K.sup.(+) or an ammonium ion [R.sup.1 R.sup.2 R.sup.3 R.sup.4 N].sup.n +, as in formula (I), and m is an integer of from 0 to 18, and to a process for preparing these water-soluble mixtures and to the use of these mixtures for inhibiting corrosion in drilling oils, cutting oils, rolling oils, grinding oils, metal-cleaning solutions, coolants and lubricants.
摘要:
Detergents on the basis of anionic and nonionic surfactants contain as laundering power-enhancing additives an aliphatic amine compound which is selected such that its pK.sub.b value is at least equal to 14, minus the initial pH value of a 1% aqueous solution of the detergent containing the amine compound. Laundering power-enhancing amine compounds selected according to the rule mentioned are certain ether amines, amidoamines, glucamine derivatives or morpholine derivatives.
摘要:
The invention is a process for degreasing animal skins in which the animal skin to be degreased is contacted with a mixture of a predominantly saturated C.sub.12 -C.sub.18 fatty alcohol ethoxylate having an average of not more than 15 EO groups and a predominantly saturated C.sub.6-10 fatty alcohol ethoxylate having an average of not more than 3 EO groups.
摘要:
Process for the production of modified triglycerides which contain epoxide groups, secondary hydroxyl groups and ether groups. The invention particularly relates to the production of reaction products of epoxidized triglycerides, for example epoxidized soy oil, with polyfunctional alcohols, for example glycols. The products so prepared are valuable starting materials, particularly for the production of alkyd resins.
摘要:
Improved mouldability and surface smoothness is provided for moulded detergent compositions, for example bar soaps, containing from 30 to 70% by weight of a sodium C.sub.12 -C.sub.18 alkyl sulfate, from 5 to 25% by weight of a C.sub.12 -C.sub.18 fatty alcohol, from 5 to 25% by weight palmitic and/or stearic acid, optionally partially saponified, and from 1 to 30% by weight of an .alpha.-sulfofatty acid salt corresponding to the following formula ##STR1## wherein R.sup.1 is a linear C.sub.9 -C.sub.21 alkyl group, A is an alkali metal, ammonium or alkanolammonium cation, and B is hydrogen or has one of the meanings of A.
摘要:
Soil-collecting detergency enhancers for detergent solutions comprising a substantially water-insoluble polyfunctional quaternary ammonium compound or a water-soluble polyfunctional quaternary ammonium compound fixed to a water-insoluble solid carrier. The detergency enhancers may be used in the cleaning of soiled articles, particularly those soiled with pigments, in aqueous detergent solutions such as for washing fabrics.