Showing papers on "Isopropyl alcohol published in 1989"

Lubricating oil compositions and concentrates

Abstract: Lubricating oil compositions of internal combustion engines are described which comprise (A) a major amount of oil of lubricating viscosity, and minor amounts of (B) at least one carboxylic derivative composition produced by reacting (B-1) at least one substituted succinic acylating agent with (B-2) at least one amine compound characterized by the presence within its structure of at least one HN < group, said acylation agents being characterized by the presence within their structure of an average of at least 1.3 succinic groups, and (C) at least one metal salt of a dihydrocarbyl dithiophosphoric acid wherein (C-1) the dithiophosphoric acid is prepared by reacting phosphorus pentasulfide with an alcohol mixture comprising at least 10 mole percent of isopropyl alcohol and at least one primary aliphatic alcohol containing from about 3 to about 13 carbon atoms, and (C-2) the metal is a Group II metal, aluminum, tin, iron, cobalt, lead, molybdenum, manganese, nickel or copper. The oil compositions of the invention also may contain (D) at least one carboxylic ester derivative composition, and/or (E) at least one neutral or basic alkaline earth metal salt of at least one acidic organic compound, and/or (F) at least one partial fatty acid ester of a polyhydric alcohol.

Properties of molybdate species supported on silica

Abstract: Molybdenum species have been deposited on a high surface area silica by the impregnation method and further calcination at 500 °C in air. Mo loading was varied from 0–10 wt % Mo. I.r., u.v.–visible, XPS and EDX-STEM techniques have been used to characterize the nature of the molybdenum species as a function of Mo loading. At low Mo content ( < 3 wt % Mo) interaction between silanol groups and molybdate ions occurred resulting in the formation of monomeric tetrahedral MoO2–4 species with a u.v. band near 245 nm. For intermediate loadings (3–8 wt %) polymeric octahedral molybdate species were identified with a u.v. band near 340 nm. At high Mo content crystallites of MoO3 were also observed. Catalytic properties for both isopropyl alcohol conversion in air at 100 °C and propene oxidation at 400 °C were studied as a function of Mo loading. It was observed that the catalysts are acidic as evidenced by isopropyl alcohol dehydration into propene at low Mo content and their activity increased with Mo content following the amount of MoO2–4 species. Polymeric molybdate species were observed to exhibit mainly redox-type properties as evidenced by isopropyl alcohol oxidative dehydrogenation into acetone and by propene oxidation into propanal (electrophilic attack) and into acrolein (allylic-type reaction). MoO3 crystallites were observed to exhibit usual properties of unsupported MoO3 catalysts.

Aqueous isopropyl alcohol for extraction of free fatty acids from oils

Abstract: Liquid-liquid extraction of fatty acids from a vegetable oil is accomplished by aqueous isopropyl alcohol in the ratio of 1:1 in two-stage extractions at 30±2°C. The mixtures studied contained 0 to 50 fatty acids in groundnut oil, and aqueous isopropyl alcohol solutions were of 75, 80, 85, 95 and 99% concentrations. Phase separation depends on (i) the fatty acids content in the model mixture, and (ii) the concentration of aqueous isopropyl alcohol. Selective fatty acid separation and phase separation could be achieved by use of aqueous (75 and 80%) isopropyl alcohol over the whole range of fatty acid content in the model mixture.

Effect of fluorination of the meso-phenyl groups on selective tetraphenylporphyrinatoiron(III)-catalysed reactions of propane with molecular oxygen

Abstract: A series of tetrakis(pentafluorophenyl)iron(III) complexes are active catalysts for the selective air oxidation of propane to isopropyl alcohol and acetone under mild conditions, and provide hundreds of catalytic turnovers in the absence of any added co-reductants.

Kinetic Resolution of α-Arylcarboxylic Acid Derivatives by a Catalytic Use of a Chiral Titanium Alkoxide

Abstract: Kinetic resolution of racemic α-arylcarboxylic acids is successfully achieved by a catalytic use of titanium tetraisopropoxide and a chiral 1,4-diol in the reaction of the corresponding 2-pyridinethiol esters and isopropyl alcohol.

The generation of acetonemia/acetonuria following ingestion of a subtoxic dose of isopropyl alcohol.

Abstract: A subtoxic dose of isopropyl alcohol was ingested by three subjects to evaluate the time to and extent of acetone generation and to explore its detection in the urine. Maximal serum isopropyl alcohol concentrations were observed by 30 minutes after ingestion of approximately 1 oz 70% isopropyl alcohol (0.4 mL/kg), but maximal serum acetone concentrations were not recorded until at least four hours postingestion. Urine tested positive (small) for acetone within three hours of ingestion using Acetest urine testing tablets (Ames Labs, Elkhart, IN). It was concluded that acetonemia occurs early after ingestion of isopropyl alcohol and increases as serum isopropyl alcohol concentrations decline. In addition, acetonuria may be qualitatively measured by three hours postingestion with rapid urine screening tests and may remain positive for 24 hours.

Treatment of the effluents from the production of epoxy resins

Abstract: Process for the treatment of aqueous effluents from the production of epoxy resins, which effluents contain as their main impurities chlorohydrins, glycidol, isopropyl alcohol and sodium chloride, which process comprises the following steps: (a) hydrolytic treatment of the effluent under alkaline conditions, until the effluent's content of epichlorohydrin in reduced down to values of about 75 ppm, and the effluent's glycidol content is reduced to values lower than about 4,000 ppm; (b) removal of about 90% of sodium chloride from the hydrolyzed effluent; and (c) anaerobic digestion of the hydrolyzed, sodium chloride-deprived effluent, after preliminary dilution, neutralization and integration with nitrogen and phosphorus sources The (b) step can be carried out by means of a process of concentration of the effluent, in order to cause sodium chloride to precipitate, or by submitting the same effluent to a treatment of electrodialysis

Production of isopropyl alcohol

Abstract: PURPOSE: To economically obtain isopropyl alcohol in high yield by subjecting acetone to heat reaction with hydrogen at a lower molar ratio of hydrogen and acetone in the presence of a copper oxide-chromium oxide catalyst CONSTITUTION: When acetone is reacted with hydrogen or a hydrogen-containing gas consisting of hydrogen and inert gas in the presence of a copper oxide- chromium oxide in vapor phase to afford the subject substance, the reaction is carried out in a molar ratio of hydrogen to acetone of 11-50 or in a molar ratio of hydrogen-containing gas to acetone of ≤50 at 60-200°C reaction temperature and 1-10kg/cm 2 G As for the hydrogen, high-purity hydrogen may be unnecessary and hydrogen containing methane produced in ethylene production plant or hydrogen containing nitrogen can also be used COPYRIGHT: (C)1991,JPO&Japio

Process for the hydration olefins

Abstract: A process for converting propylene to isopropyl alcohol by contacting water with a propylene-containing feed at a mole ratio of water to propylene of at least about 0.5:1 (water:olefin), usually about 1:1-10:1 in the vapor and/or liquid phase under propylene hydration conditions. The hydration is carried out in the presence of a relatively constrained intermediate pore size zeolite such as ZSM-35 or ferrierite as the hydration catalyst. The zeolite is used in the acid form and with a crystal size of not more than 0.2μ to give high activity for conversion to isopropyl alcohol.

Production of isopropyl alcohol

Abstract: PURPOSE: To readily and stably for long time obtain the subject compound in high reactivity and selectivity by reducing acetone with hydrogen using carried ruthenium catalyst and reacting so as concentration of isopropyl alcohol of reaction element to be specific value. CONSTITUTION: Acetone is supplied H 2 in an amount of 1 to 50 times of theoretically required hydrogen to a reducing reaction by hydrogen preferably using isopropyl alcohol(IPA) as a solvent, where the concentration of IPA in the reaction system is made as ≥50wt.%, then reacted at 0 to 200°C under normal pressure or increased pressure in the presence of ruthenium catalyst such as ruthenium chloride carrying 0.01 to 5wt.% carrier such as heat-resistance γ-alumina, silica or activated charcoal of coconut shell to afford the objective compound useful as solvent or raw materials of various organic drugs, etc. COPYRIGHT: (C)1990,JPO&Japio

Catalyst composition for polyurethane production

Abstract: PURPOSE: To enable to form a catalyst for polyurethane foam which can stably retain its effective retarding effect by mixing an organic carboxylic acid salt of a tertiary amine compound with a specified amount of a monoalcohol organic solvent. CONSTITUTION: This catalyst for polyurethane foam is formed by mixing one or a plurality of organic carboxylic acid salts of tertiary amine compounds with a 1-6C monoalcohol organic solvent in an amount of 10-40wt.% based on the both. As the organic carboxylic acid salt, one produced by using 0.1-1.0 equivalent, per equivalent of the nitrogen atoms of the tertiary amine compound, of a monobasic organic carboxylic acid is desirable. As the above organic carboxylic acid, formic acid is particularly desirable. As the monoalcohol organic solvents, methyl alcohol, ethyl alcohol, isopropyl alcohol, etc., are desirable. COPYRIGHT: (C)1990,JPO&Japio

Production of propylene

Abstract: PURPOSE: To obtain the objective substance readily and efficiently by reacting isopropyl alcohol in the presence of an acidic catalyst in a vapor phase CONSTITUTION: Isopropyl alcohol containing 001-10wt% acetone is reacted in the presence of an acidic catalyst (eg zeolite, silica gel or acid clay) under normal pressure at ≥ the boiling point (826°C) of isopropyl alcohol in a vapor phase to give propylene A tubular type reactor is generally used as the reactor since acetone in the raw material is not changed after passing the reactor, acetone is recycled and used COPYRIGHT: (C)1991,JPO&Japio

Aqueous composition for removing wrinkles of cloth and method thereof

Abstract: PURPOSE: To obtain a water-based wrinkle-removing composition that comprises an alcohol, glycerol, a nonionic surfactant and water and can finish fabrics in smooth and wrinkle-free state only by spraying this composition to wrinkled fabrics. CONSTITUTION: This water-based composition comprises (A) 10-60 wt.% of one or more kinds of alcohols selected from the group of ethyl alcohol, propyl alcohol and isopropyl alcohol, (B) 1-10 wt.% of glycerol, (C) a nonionic surfactant in a sufficient amount to enhance the wettability of fabrics and (D) the balance water. The composition is applied to wrinkled fabrics and the treated fabrics are only pulled tightly and dried, whereby the objective smooth and wrinkle-free fabrics are obtained. A silicone compound is added to the glycerol (B) in an amount of 0.05 wt.% thereby reducing the viscosity of the glycerol.

Solvate of cefadroxyl

Abstract: The invention relates to a novel crystalline cefadroxyl hemihydrate having a K.F. between about 3.5 and 2.0%: such compound is more stable than other cefadroxyl molecules. The novel cefadroxyl is obtained preparing and isolating a novel cefadroxil solvate of dimethylacetamide, or of N-methyl-2-pyrrolidone or of monomethylformamide, slurrying said solvate with a mixture methanol/isopropyl alcohol 30:70 to 50:50 by volume at a temperature of about +45° C. to +55° C. and then filtering the so obtained compound.

Surface treatment of glass product

Abstract: PURPOSE:To easily remove the yellowing and vapor-deposited film on the optical glass surface by treating the glass surface with an aq. alkaline soln. contg. an alkali metal salt, an org. complexing agent, and a water-soluble alcohol. CONSTITUTION:The optical glass surface is briefly treated with the aq. alkaline soln. at 60-80 deg.C contg. 5-50wt.% of the alkali hydroxide such as NaOH and an alkali metal silicate such as water glass, 1-20wt.% org. complexing agent such as sodium citrate and sodium ethylenediaminetetraacetate and 1-25wt.% water-soluble alcohol such as isopropyl alcohol and glycol to easily remove yellowing due to the formation of the carbonate and hydrated silicate on the glass surface and to remove the defective vapor-deposited film generated when the vapor-deposited coating films of MgF2, SiO2, Al2O3, ZrO2, etc., are formed to prevent reflection.

Production of isopropylbiphenyls

Abstract: PURPOSE:To obtain the title substance rich in 4-substituted and 4,4'-disubstituted isomers by reaction between biphenyl and propylene or isopropyl alcohol in the presence of a catalyst containing a zeolite of a specific pore diameter and niobium oxide CONSTITUTION:In the reaction between biphenyl and a compound selected from the group consisting of propylene, isopropyl alcohol and isopropylbenzene, a zeolite of 7A pore diameter, or a zeolite having the same X-ray powder diffraction pattern as of mordenite or niobium oxide is used as a catalyst to effect the reaction at 130-350 degC, and 2-20kg/cm The zeolite catalyst is preferably a H-type mordenite of 5-25 silica/alumina ratio, and the niobium catalyst is obtained by heating or roasting a niobate in air The product is used as an intermediate of biphenyl having substituents in the 4-position, or heat medium or a solvent for pressure-sensitive paper

Aerosol germicide composition

Abstract: PURPOSE:To obtain the titled composition having no irritation to a throat during use, capable of being sprayed to the end without leaving a stock solution, having excellent sterilizing effects, containing ethanol, isopropyl alcohol, a liquefied gas and a germicide CONSTITUTION:The titled composition containing 30-60wt% ethanol, 10-30wt% isopropyl alcohol, 30-55wt% liquefied gas (preferably 35-50wt%, 13-25wt% and 35-55wt%, respectively) and 0001-05wt% germicide (preferably N-cocoyl-L-argininethyl ester pyrrolidonecarboxylate) Addition of isopropyl alcohol can reduce irritation to a throat during use and raise sterilizing effects, isopropyl alcohol is an inexpensive substance and does not cause of a problem of raw material cost

Production of 1,1-difluoroethane

Abstract: PURPOSE: To obtain the title compound in high yield without the need for considerable plant investment useful as an alternative to CFC-12 having concern for the ozone layer depletion by reduction of 1-chloro-1,1-difluoroethane as raw material. CONSTITUTION: The objective compound can be obtained by reduction of 1- chloro-1,1-difluoroethane as raw material. The reduction is made e.g. under light irradiation, using zinc or hydrogenation in the presence of a catalyst. When the reduction is made under light irradiation, a secondary alcohol such as isopropyl alcohol is pref. used as proton sauce. It is preferable that the reaction temperature is -20-300°C and the amount of the reducing agent to be used at least stoichiometric. The starting material, 1-chloro-1,1-difluoroethane, can be prepared, for example, by fluorinating methylchloroform. COPYRIGHT: (C)1991,JPO&Japio

Antifouling composition without containing heavy metal

Abstract: PURPOSE:To obtain the titled composition capable of exhibiting repellent action, by respectively dissolving a mixture of an alkylbenzenesulfonic acid or polystyrenesulfonic acid with pyridazines, mixture of the former with dipyridyl or nicotines and mixture of phenols, etc., with an aliphatic aldehyde in a medium. CONSTITUTION:An antifouling composition, obtained by using a mixture of a pyridazine derivative (e.g. 3,6-dichloropyridazine) with an alkylbenzenesulfonic acid or polystyrenesulfonic acid dissolved in a medium, such as isopropyl alcohol, isobutyl alcohol, toluene or xylene or a mixture thereof, mixture of dipyridyl or nicotines with an alkylbenzenesulfonic acid or polystyrenesulfonic acid dissolved in the medium and mixture of phenols or thiophenols with an aliphatic aldehyde dissolved in the medium as essential ingredients and having repellent action on various noxious organisms.

Production of 2-(4-hydroxyphenyl)-2-(4'-maleimidephenyl) propane

Abstract: PURPOSE: To readily, industrially and advantageously obtain the title compound in a simple reaction treatment and high yield and purity by subjecting 2-(4- hydroxyphenyl)-2-(4'-aminophenyl)propane to a dehydrative cyclization reactions with maleic anhydride in specific reaction conditions. CONSTITUTION: 2-(4-Hydroxyphenyl)-2-(4'-aminophenyl)propane is subjected to a dehydrative cyclization reaction with maleic anhydride of 1.0-1.3mol based on 1mol above-mentioned compound in an organic solvent such as toluene capable of forming an azeotropic mixture with water under the presence of an acid catalyst such as 95% sulfuric acid and aprotic polar solvent such as N,N- dimethylacetamide at 80-180°C. The resultant water is subjected to azeotropic separation and after reaction is finished, the reaction mixture is cooled to 60-80°C and the solvent is immediately distilled in vacuo. A mixed solvent of isopropyl alcohol, etc., and water are added thereto to isolate the objective compound useful as a polymer raw material. The amount of the aprotic solvent used is 10-40wt.% based on the weight of organic solvent used. COPYRIGHT: (C)1991,JPO&Japio

Sterilizing solution composition for wet tissue

Abstract: PURPOSE:To obtain the titled composition capable of being thrown into a flush toilet after use, without deteriorating adaptability as wiping caused by dissolution of paper during preservation or use, consisting essentially of ethanol, isopropyl alcohol, water and a germicide. CONSTITUTION:The titled composition containing 50-80wt.% ethanol, 10-35wt.% isopropyl alcohol, 3-32wt.% water (preferably 60-75wt.%, 20-30wt.% and 5-28wt.%, respectively) and 0.005-0.2wt.% germicide (preferably N-cocoyl-L-argininethyl ester pyrrolidonecarboxylate). This composition has excellent water solubility after use, wiper adaptability during preservation and use, characteristics of the organic functions and sterilizing effects during use. A smell of ethanol and de-fatting action during use are reduced.

Overall mildewproofing and termite-proofing method

Abstract: PURPOSE:To perform overall mildewproofing and termite-proofing treatment of building, etc., by using a liquid produced by mixing Chemistop as a water- repellent and impregnation agent with isopropyl alcohol and xylene and dissolving thiabendazole and dichlofluanid as a mildewproofing agent in the liquid mixture. CONSTITUTION:The overall mildewproofing and termite-proofing treatment is carried out by (1) mixing Chemistop (a water-repellent and impregnation agent) with isopropyl alcohol (acting as a sterilizing solvent) and xylene (acting as a diluent), (2) dissolving a mildewproofing agent consisting of thiabendazole [2-(4'-thiazolyl)-benzimidazole], dichlofluanid [N,N-dimethyl-N '-(fluorodichloromethylthio)-N'-phynylsulfamide] and selectively 1-[(diiodomethyl) sulfonyl)]-4-methylbenzene in the mixture and (3) applying the solution to the treating object by coating or spraying. The dissolution of the mildewproofing agent is preferably carried out by heating at 35 deg.C.

Production of paraffinic hydrocarbon compound and/or hydrocarbon compound having hydroxyl group

Abstract: PURPOSE:To obtain a paraffinic hydrocarbon and/or a hydrocarbon compound having OH group in high conversion and selectivity by reacting olefins with an oxygen-containing gas in the presence of a secondary alcohol using a Co complex as a catalyst. CONSTITUTION:The compound of formula III and/or IV (either one of R and R is OH and the other is H) can be produced by reacting a compound of formula I (R is alkyl, aryl, cycloalkyl, etc.; R -R are H, alkyl, aryl, etc.) with an oxygen-containing gas using a compound of formula II [R , R , R and R are H, lower alkyl or aryl; R and R are H, lower alkyl or COOR (R is H or alkyl)] as a catalyst in the presence of a secondary alcohol (e.g. isopropyl alcohol) under an oxygen pressure of 0.2-1.0kg/cm . The Co complex used as the catalyst can be synthesized e.g. from CoCl2 and a diketone by desalting process.

Composition for relieving pain of oral cavity

Abstract: PURPOSE:To obtain a composition for relieving pain of oral cavity, having low irritation on mucosa, showing sustained analgesic action by formation of coating film after administration, by a liquid aromatic compound having local analgesic properties with a lower alcohol and a polyhydric alcohol. CONSTITUTION:(A) A liquid aromatic compound (e.g. eugenol, clove oil or creosote) having local analgesic properties is blended with (B) a water-insoluble high polymer compound (e.g. ethyl cellulose, carboxymethyl cellulose, etc.) sol uble in the component A, (C) 2-4C lower alcohol (e.g. ethanol, isopropyl alcohol, etc.) and (D) a polyhydric alcohol containing 2-3 hydroxyl groups in the mole cule (e.g. glycerin or propylene glycol). The blending amounts are preferably 0.5-45wt.% based on total amounts of the composition of the component A, 0.2-10wt.% component B, 30-70wt.% component C and 10-50% component D.

Production of 2-cyclohexen-1-amine

Abstract: PURPOSE:To obtain a compound useful as a germicide or synthetic intermediate therefor in good yield, by reacting a 1,2-dihalocyclohexane with ammonia in isopropyl alcohol. CONSTITUTION:A 1,2-dihalocyclohexane is reacted with ammonia in the presence of isopropyl alcohol at 90-140 deg.C while being stirred and heated to afford the aimed 2-cyclohexane-1-amine. The reaction is carried out by using the ammonia in a molar amount of 2-20 times based on the 1,2-dihalocyclohexane and the isopropyl alcohol in an amount of 1-9 pts.wt. based on 1 pt.wt. ammonia. trans-1,2-Dibromocyclohexane is preferred as the 1,2-dihalocyclohexane.

Production of paste for forming thick film

Abstract: PURPOSE:To efficiently obtain a paste for forming thick films having high surface activity and a desired composition, by reacting a solution of an alkoxide of metallic element constituting thick films in a wet state to form a (hydroxide) oxide, adding an organic binder, solvent, etc., to the (hydroxide) oxide and removing water by vacuum distillation. CONSTITUTION:A solution (e.g., solution of titanium isopropoxide in isopropyl alcohol) of an alkoxide of metallic element to form thick films and an alkali aqueous solution (e.g., aqueous solution of barium hydroxide) are fed to a container 1 of vacuum distillation. Then the container is heated by an oil bath 5 while agitating by a stirrer 4 and wet reaction is carried out to form a metallic oxide (e.g., barium titanate). Then an organic binder, solvent (e.g., polyvinyl alcohol), etc., are added to the container 1 of vacuum distillation and water is removed by vacuum distillation to obtain a paste for forming thick films having uniformly dispersed fine oxide particles.

Slow release antiinflammatory composition for local administration

Abstract: PURPOSE: To obtain an inflammation inhibitor composition suitable for administration, continuing inflammation suppressing effect, containing (S) 6-methoxy-α- methyl-2-naphthaleneacetic acid piperazine salt, a carrier, a matrix, etc., in a mixed state. CONSTITUTION: This composition comprises 5-20wt.% of (S) 6-methoxy-α- methyl-2-naphthaleneacetic acid piperazine salt as an active ingredient. The composition comprises 70-90wt.% of a carrier selected from the group consisting of polyethylene glycol, propylene glycol, glycerol, pure water, isopropyl alcohol and their mixture and 1.4-4wt.% of a hydrophilic matrix which is composed of an alkyl derivative of cellulose and/or a polyvinyl alcohol and is not influenced by pH. The active ingredient, the carrier and the matrix are pharmaceutically manufactured into a dosage form such as cream, emulsion or get by a conventional method to give the objective composition.

Process for the preparation of sucroesters by reaction of a sugar and a fatty acid in solvent medium and in the presence of an enzyme, and sucroesters thus prepared

Abstract: Process for the preparation of sucroesters by reaction of a sugar and a fatty acid in solvent medium and in the presence of an enzymatic catalyst, characterised in that the solvent medium is a compound chosen from the group consisting of tertiary alcohols and isopropyl alcohol. Application: emulsifying agents for the pharmaceutical, cosmetic or dietetic food industry.

Antiseptic-satd. paper towel prodn.

Abstract: The individually-packed paper towels, for use in minor surgery and medical practice, are impregnated with a biocidal compsn made by (a) placing 450 kg isopropyl alcohol, 300 kg n-propanol and 1 kg perfume in a reactor and homogenising by stirring at 60 rpm (b) separately mixing 10 kg isopropyl myristate and 5 kg condensate from polyester and polysiloxane (c) placing 75 kg sodium salt of o-phenyl phenol and 226 kg deionised water in a reactor, heating to 25-30 degC and adding the above mixts with stirring at 600 rpm for 5 minutes A fixed volume is added to a PE-aluminium-opaline bag in which a folded towel of absorbent paper has been inserted, and the bag then sealed