456 results about "Hexanol" patented technology

Mixed alcohols can be used as a fuel additive in gasoline, diesel, jet fuel or as a neat fuel in and of itself. The mixed alcohols can contain C₁-C₅ alcohols, or in the alternative, C₁-C₈, or higher, alcohols in order to boost energy content. The C₁-C₅ mixed alcohols contain more ethanol than methanol with amounts of propanol, butanol and pentanol. C₁-C₈ mixed alcohols contain the same, with amounts of hexanol, heptanol and octanol. A gasoline-based fuel includes gasoline and the mixed alcohols. A diesel based fuel includes diesel and the mixed alcohols. A jet fuel includes kerosene and the mixed alcohols. The neat fuel of the mixed alcohols has an octane number of at least 109 and the Reid Vapor Pressure is no greater than 5 psi. The gross heat of combustion is at least 12,000 BTU's/lb.

The invention relates to a catalyst for synthesizing hexamethylenediamine. The catalyst is composed of three parts, namely a main active ingredient, aids and a carrier subjected to ammoniated treatment, wherein the main active ingredient is Ni or Co; the aids refer to one or more ofmetals such as Fe, Cu, Ru, Re, K, Zn and B or oxides; and the carrier subjected to ammoniated treatment is selected from SiO2 or Al2O3 subjected to ammoniated treatment. In the total weight of the catalyst, the main active ingredient accounts for 1-40%, and the aids account for 0.1-20%. The catalyst disclosed by the invention has the characteristic that the adopted carrier needs special ammoniated treatment. According to the catalyst disclosed by the invention, an ammonolysis reaction of hexanediol or amino hexanol or a hexanediol/amino hexanol mixture is implemented, the hexamethylenediamine product is synthesized under a hydrogen present condition, and the catalyst has high activity, high selectivity and stability.

A process for the conversion of carbohydrates from any of a number of sources into butanol and hexanol for fuel or chemical use is disclosed. The process includes conducting a homoacetogenic fermentation to produce an acetic acid intermediate which is chemically converted to ethanol. The ethanol and a remaining portion of the acetic acid intermediate are used as a substrate in an acidogenic fermentation to produce butyric and caproic acid intermediates which are then chemically converted to butanol and hexanol.

The invention provides a supercritical CO2 microemulsion and a method for improving an oil recovery factor. The supercritical CO2 microemulsion comprises the following raw materials in percentages by weight: 4.5*10<-3>wt% to 16.5*10<-3>wt% of a surfactant, 12.0wt% to 14.5wt% of a cosurfactant, 0.2wt% to 1.8wt% of water, and 83.7wt% to 87.8wt% of CO2, wherein the surfactant is one of 2-(1-ethyl-2-methyl-1-pentyl) sodium sulfosuccinate or a homolog of 2-(1-ethyl-2-methyl-1-pentyl) sodium sulfosuccinate, polyethylene glycol-2,6,8-trimethyl-4-nonyl ether, perfluorinated alkyl polyoxyethylene, polyacrylic acid 1,1-perfluorooctyl dihydrogen phosphate, polydimethylsiloxane, and polyacrylic acid 1,1-dihydrogen perfluorinated octyl methyl ester-b-polyoxyethylene; and the cosurfactant is ethanol, propyl alcohol, butanol, pentanol or hexyl alcohol. The invention also provides a method for improving an oil recovery factor. The method comprises a step of improving the oil recovery factor by adopting the supercritical CO2 microemulsion.

The invention relates to a method for preparing hexamethylene diamine by using hexanediol, or amino hexanol or a hexanediol/amino hexanol mixture as a raw material. The method comprises the following steps: mixing the hexanediol, or the amino hexanol or the hexanediol/amino hexanol mixture with liquid ammonia according to a certain proportion, pumping the mixture into a reactor, and reacting under the existence of a catalyst and hydrogen. According to the method disclosed by the invention, a novel catalyst is adopted, the catalytic performance is excellent, and long-time operation is easy; production of a hexamethylene diamine product by carrying out hydro-amination on the hexanediol, or the amino hexanol or the hexanediol/amino hexanol mixture can be realized under lower reaction pressure, compositions of the product can be flexibly changed by changing reaction conditions, the selectivity of a target product is increased, a reaction process is simple, the one-time investment and the production cost of a production device are reduced, separation of a reaction product and the catalyst is simple, and large-scale continuous industrial production can be easily realized.

A process for preparing microspheres of TiO2/SiO2, aerogel includes such steps as dissolving TiOSO4 in deionized water, adding ammonia water to make pH=7-8, depositing, washing deposit, adding nitric acid, stirring to obtain TiO2 sol, mixing Si sol with nitric acid, adding alcohol to obtain SiO2 alcohol sol, mixing it with said TiO2 sol, adding formamide and epoxy propane, mixing to obtain TiO2/SiO2 sol, mixing heptane or hexane, Span-80, tween-85 and butanol or hexanol, stirring to obtain oil phase, adding TiO2/SiO2 sol, adding ammonia water to make pH=7-1, centrifugal separation of target microspheres, washing and drying.

The invention provides a method of preparing molybdenum disulfide microspheres through sulfurizing and reducing a soluble molybdenum source in a reversed-phase microemulsion system. The method includes a) a step of preparing a reversed-phase microemulsion A through adopting polyethylene glycol octylphenol ether (Triton X-100), n-hexanol, cyclohexane and an aqueous solution of the soluble molybdenum source as a surfactant, a cosurfactant, an oil phase and a water base respectively, b) a step of adding an aqueous solution containing a sulfur source and a reductant into the reversed-phase microemulsion A to obtain a reversed-phase microemulsion B, and c) a step of transferring the reversed-phase microemulsion B to a hydrothermal reactor, performing crystallization thermal treatment at a certain temperature for a certain period of time, separating, washing, and drying the reaction product to obtain the molybdenum disulfide microspheres. The method is simple and mild in reaction conditions. Through characterization by a scanning electron microscope and a transmission electron microscope, the molybdenum disulfide microspheres have the characteristics of being solid or hollow, smooth or wrinkled in surface, and the like.

The invention discloses a copper-based nano catalyst for preparing high-carbon alcohol from synthetic gas as well as a preparation method and application thereof. The catalyst is a copper-based polymetallic nano catalyst, which is composed of copper and at least one Fischer-Tropsch component. The preparation method is selected from one of replacement reaction method, step-by-step reduction method and simultaneous reduction method. The catalyst disclosed by the invention is small in particle size, large in specific surface and high in utilization rate; the preparing process is simple and convenient for operation; and when the catalyst is used for the synthesis of high-carbon alcohol from synthetic gas, by controlling the component and ratio of the catalyst, the selectivity of the alcohols higher than ethanol in the obtained alcohols is up to 95wt% and the selectivity of high-carbon alcohols higher than hexanol reaches more than 80wt%.

The invention discloses a method for extracting polygahatous polysaccharides from traditional Chinese medicine rhizoma polygonati. The method comprises the steps of cleaning, drying and grinding the rhizoma polygonati; performing secondary microwave auxiliary extraction on rhizoma polygonati powder through hexanol serving as a solvent, filtering and combining secondary extraction liquid; recycling the hexanol from the combined extraction liquid, then concentrating the extraction liquid, adding ethyl alcohol, performing uniform stirring, putting into an ultrasonic oscillator for ultrasonic oscillation, standing, performing centrifugal filtration to obtain precipitates, and drying the precipitates to obtain coarse polygahatous polysaccharides; removing proteins from the coarse polygahatous polysaccharides through an ethanol solution, recycling ethanol, concentrating to concentrated paste, dissolving the concentrated paste into a Tris-HCl buffering solution, and purifying the polygahatous polysaccharides twice through DE-52 cellulose column chromatography; performing third-time purification through distilled water by SephadexG-100 sephadex gel filtration chromatography, concentrating and carrying out freeze drying to obtain a refined polygahatous polysaccharides product. The extraction method disclosed by the invention is simple and feasible; the production efficiency is high; the quality of the prepared product is high; the yield is over 90 percent, and the purity is over 99 percent; the method is suitable for industrial large-scale production.

The invention discloses a hydrothermal synthesis method of a micro-emulsion of nano lithium titanate. According to the method disclosed by the invention, the micro-emulsion is prepared from cetyltrimethylammonium bromide, n-hexanol, cyclohexane and a water phase, and tetrabutyl titanate and lithium hydroxide are used as reaction materials. The method comprises the steps of: (1) preparing the 0.02-2.0 mol/L lithium hydroxide micro-emulsion and 0.025-2.5 mol/L titanium tetraisopropoxide micro-emulsion respectively; and (2) mixing the micro-emulsions in two concentrates, stirring for 5-120 minutes at the room temperature, then transferring a mixture into a 50 ml high-pressure reactor which is lined with polytetrafluoroethylene, carrying out hydrothermal reaction at the temperature of 60-240 DEG C for 1-70 hours, and then carrying out centrifugal separation, washing, drying and thermal treatment on a reactant to obtain spinel type lithium titanate. The method has the characteristics of controllable grain size, controllable morphology, simple process, simple equipment and the like.

A method of making ultra-small chitosan nanoparticles having a size range of approximately 10-20 nm, includes preparing a first microemulsion containing effective amounts of cyclohexane, n-hexanol, chitosan polymer and a nonionic surfactant. A second microemulsion is prepared containing effective amounts of cyclohexane, n-hexanol, tartaric acid, EDC, n-hydroxysuccinimide, and a nonionic surfactant. The method continues by reacting the first and second microemulsions for a time sufficient to form the ultra-small chitosan nanoparticles and recovering the nanoparticles from the reacted microemulsion. The chitosan polymer may be crosslinked and may also be tagged with a fluorescent compound, a radio-opaque compound, a paramagnetic ion, a ligand specific for a predetermined biologic target, a drug, and combinations thereof.

This invention relates to a method for separating and purifying 1,3-dihydroxypropane from microbial fermentation liquor, comprising: after the sterilization and dehydration of fermentation liquor, add in 1-pentanol or isoamyl alcohol, n-butanol and n-hexanol, then remove the sediment in the fermentation liquor by filtration or settlement followed by washing; add in appropriate amount of glycerol or 1,4-butylene glycol to the supernatant to recover 1-pentanol or isoamyl alcohol, n-butanol and n-hexanol, by decompression or normal pressure distillation, so as to produce high-purity 1,3-dihydroxypropane, with more than 95% recovering rate. This invention is characterized of simple separation process, mature technique, low separation cost, and little additional introduced agent with easy recovery. Besides, the crystallization sediment in the fermentation liquor can be efficiently separated, which overcomes the problems of foaming, agglomerating and pipe clogging during distillation, so as to realize continuous operation.

The invention relates to art oil paint with nano-pigment and the preparation method, which is characterized in that the beeswax is added into refined linseed oil and polly seed salad oil and blended evenly to make bond after heating and melting. The nano-pigment is added into the bond to blend evenly and then the pigment is added in and blended evenly. Then aluminum stearate, 2-ethyl hexanol cobalt (CAS No.13586-82-8), silicon dioxide hydrate, hydrafil, phenoxetol, butyl-p-cresol and lithopone are added in and then blended evenly. The product can be obtained after grinding. The preparation method first disperses the nano-pigment into the bond and drains most air on the surface of the common pigment grain, and then disaggregates the large grain and small gobbet of the sizing agent by the large shearing force, extrusion force and grinding force between the two rollers generated by the turn of the three-roller muller. During the grinding process, the bond with nano-pigment or latex covers the surface of the pigment grain and then permeates through the gaps of the grains. The product made has the advantages of rich color, bright colour and luster, fresh tint, strong tinctorial strength and good chromaticity.

The invention provides a process for preparing 1,2-epoxycyclohexane by using cyclohexane as the main raw material and air as the oxygen source, which comprises oxidizing cyclohexane into cyclo-hexyl hydrogen peroxide, then charging cyclo-hexene for epoxidation reaction, thus obtaining 1,2-epoxycyclohexane and cyclo-hexanol, wherein the cyclo-hexanol can be dehydrated to produce cyclo-hexene to be put into circulated use as raw material for epoxidation reaction. The invention can solve the problem of large displacement of waste water.

The invention discloses a novel esterase as well as a coding gene and an application of esterase. The esterase EST04211 has an amino acid sequence shown in SEQ ID NO. 2. The amino acid sequence of the gene of the esterase EST04211 is shown in SEQ ID NO. 1. The novel esterase disclosed by the invention is obtained by cloning Bacillus SCSIO15121 derived from deep sea of the Indian Ocean. The esterase has the largest characteristic that the esterification rate is 97% in catalytic synthesis of ethyl isobutyrate, and under similar conditions, the esterase can also catalyze propionic acid, butyric acid, valeric acid, caproic acid and ethanol, propanol, butanol, pentanol and hexanol to synthesize corresponding short-chain aromatic ester flavors, such as ethyl propionate, propyl propionate and butyl propionate, the esterification rate mostly reaches 85%-95%. The esterase can be applied in the industrial bio-manufacturing of the short-chain aromatic flavors, such as ethyl isobutyrate and the ester flavors are high in quality, belongs to natural products and can be applied in production industries, such as foods, cigarettes and daily chemical products.

The invention discloses an alcohol-ether fuel for diesel engines of ships and vehicles as well as the gas-liquid synthesis method thereof. The alcohol-ether fuel comprises the following components (by weight): methanol 36 parts, diesel oil No.0 30 parts, solvent oil 31 parts, additives 2.5 parts, and dimethyl ether 0.5parts, wherein the additives include tert-butyl alcohol, tween-20, cerium nitrate, n-hexanol and nuclear magnetic resonance agent. The systhesis method comprises the following steps: sequentially adding methanol, diesel oil and solvent oil into a reaction tank, heating to 45 to 55 DEG C, stirring under a pressure of 0.2 kg for 12 to 18 min, adding the additives and dimethyl ether, mixing, stirring for 3 to 5 min, fine-filtering, and standing to obtain the final product. The alcohol-ether fuel has the advantages of no pollution, simple process, rich raw materials, low cost, no lead, high cetane number, and good anti-knock property, safety and stability, and can be used alone or mixed with common diesel oil for alcohol-ether ships and vehicles. The alcohol-ether fuel is an ideal product to substitute for the diesel oil No.0.

Fine particulate polymer drag reducing agents (DRAs) in bi-modal or multi-modal particle size distributions may be produced simply and efficiently without cryogenic temperatures. The grinding or pulverizing of polymer, e.g. non-porous poly(alpha-olefin) suitable for reducing drag in hydrocarbons may be achieved by the use of at least one liquid grinding aid and at least two grinding processors in series. The blades of the stators of the grinders are of different configuration so that granulated polymer fed to the first processor having relatively larger gaps between blades is ground to an intermediate size which is fed to the second processor having relatively smaller gaps between blades which grinds the polymer to a second, smaller size. A non-limiting example of a suitable liquid grinding aid includes a blend of propylene glycol, water and hexanol. Particulate DRA may be produced at a size of 300 microns or less in only two passes.

It is an object of the present invention to provide an inexpensive and efficient industrial method for obtaining (S)-2-pentanol, (S)-2-hexanol, 1-methylalkyl malonic acid and 3-methyl carboxylic acid at a high optical purity. The present invention provides a method of producing (S)-2-pentanol or (S)-2-hexanol which comprises allowing certain types of microorganisms or transformed cells, a product obtained by treating said microorganisms or cells, a culture solution of said microorganisms or cells, and/or a crude purified product or purified product of a carbonyl reductase fraction obtained from said microorganisms or cells, to act on 2-pentanone or 2-hexanone.

The invention discloses a catalyst for eliminating volatile organic compounds and a preparation method thereof. The catalyst is composed of a carrier, an active component and an auxiliary agent. The carrier is Nb2O5-Al2O3-CeVO4; the active component is Pt; and the auxiliary agent is MoO3; specifically, the Nb2O5-Al2O3-CeVO4 carrier is prepared by loading Nb2O5 and Al2O3 on CeVO4, the mass ratio ofNb2O5 to Al2O3 is 1:0.1-2, and the loading amount of Nb2O5-Al2O3 is 2-6wt% of CeVO4; the active component Pt and the auxiliary agent MoO3 are prepared by loading platinum acetylacetonate (II) and molybdenum acetylacetonate to the Nb2O5-Al2O3-CeVO4 carrier, the loading amount of Pt is 0.3wt%, and the mass ratio of Pt to MoO3 is 1:(0.5-3). The catalyst has very high reaction activity on benzene, toluene, ethyl acetate, acetone, n-hexanol and diethyl ether.