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34 results about "Ethyl stearate" patented technology

Ethyl stearate is a flavouring ingredient. Metabolite Description from Human Metabolome Database (HMDB) Ethyl octadecanoate is an octadecanoate ester obtained by formal condensation between the carboxy group of octadecanoic (stearic) acid and the hydroxy group of ethanol .

Method for manufacturing superfine flaky zinc powder with high corrosion resistance

The invention provides a method for manufacturing superfine flaky zinc powder with high corrosion resistance, and belongs to the technology of metallurgical waste utilization and metal powder material manufacturing. Raw zinc powder is commercially available waste sieved out in a battery zinc powder process, the raw zinc powder, industrial auxiliary agents and grinding media are placed into a horizontal type blade high-powered stirring grinder to be ground, the mass ratio of the grinding media to the raw zinc powder is 10:1-20:1, the mass of the industrial auxiliary agents is 1.0-3.0% of the mass of the raw zinc powder, the industrial auxiliary agents are one or two of hexadecanoic acid, dodecyl alcohol, ethyl stearate and silane coupling agents, the grinding media are bearing steel balls with the diameters being 5-7 millimeters, vacuum pumping is conducted firstly, and then inert gas is fed two times for protection; the ground flaky zinc powder is placed in a mixer, and mixing and passivation are conducted in air; the mixed flaky zinc powder is placed in a cyclone classifier and classified so as to obtain the superfine flaky zinc powder. The metallurgical waste can be used; the superfine flaky zinc powder has the high corrosion resistance, and production cost is reduced.
Owner:昆明海创兴科技有限公司

Method for preparing nano titanium dioxide coating on surface of base material made of transparent glass and polymer

InactiveCN104163575AControllable surface structureImprove photocatalytic activityCoatingsEthyl stearateStearic acid
The invention discloses a method for preparing a nano titanium dioxide coating on the surface of a base material made of transparent glass and polymer. The method is characterized by comprising the following steps: taking TiCl4 as the titanium source to obtain a precursor reaction fluid, using a rotation coating instrument to paint 10 to 20 [mu]L of the precursor reaction fluid on a substrate, which has been subjected to a pretreatment, so as to obtain a uniform liquid membrane on the substrate; covering a BOPP film on the substrate, subjecting the substrate to light radiation in an ultraviolet lamp cabinet, taking out the substrate after 5 to 10 minutes, removing the BOPP film, washing the substrate, and finally drying so as to obtain the transparent TiO2 surface coating. If an ethyl stearate solution is painted on the substrate surface before the precursor reaction liquid is spin-painted on the substrate, and the post operations are not changed, a porous transparent TiO2 coating will be formed on the substrate surface. The precursor reaction fluid is prepared by the following steps: taking TiCl4 as the titanium source, and then orderly adding TiCl4 and H2O2 into an acidic water solution of HNO3 under stirring. The provided TiO2 film is composed of pure anatase crystalline phase having a high photocatalytic activity, and the surface structure of the TiO2 film is controllable. The technology is simple, the used facilities are convenient and easily available, the film-forming speed is fast, the post-treatment is convenient, and the reaction mediums are nontoxic and harmless.
Owner:BEIJING UNIV OF CHEM TECH

Preparation technology of molybdenum-niobium alloy sputtering target material

The invention belongs to the technical field of metallurgy materials, and particularly relates to a preparation technology of a molybdenum-niobium alloy sputtering target material. The preparation technology comprises the steps of milling, molding, vacuum sintering, machining, and the like, wherein the milling process comprises the steps of putting molybdenum powder and columbium powder into a ball mill according to the principle that the ratio of molybdenum powder to columbium powder is (6 to 10) to 1; then, adding a process control agent and zirconia grinding balls; carrying out ball milling under argon protection; sieving; and separating to obtain molybdenum-niobium alloy composite powder; weights of the process control agent and the zirconia grinding balls are respectively (0.01 to 0.05) times and (5 to 20) times the total weight of molybdenum powder and columbium powder; and the process control agent is one or more of zinc stearate, palmitic acid, ethyl stearate, polyvinyl alcohol and stearic acid. According to the preparation technology, the obtained molybdenum-niobium alloy sputtering target material is a single phase structure, the structure is uniform and free of holes, the average grain size is 40 to 65 [mu]m, the density is 9.85 g/cm<3> or above, the performance is excellent, and the molybdenum-niobium alloy sputtering target material can be widely applied to the fields such as flat displays.
Owner:洛阳丰联科绑定技术有限公司

Disposable thermometer

The invention discloses a disposable thermometer, which is mainly used for measuring body temperature. The thermometer is totally made of organic matters, and can be disposed through incineration after use. Phase-change material powders are placed in a container made of plastics, and body temperature is represented through the feature that different phase-change materials have phase change under different temperatures. The phase-change materials comprise aliphatic hydrocarbons, fatty alcohol, fatty acid and fatty acid ester. The aliphatic hydrocarbons comprise n-nonadecane-n-tetracosane; the fatty alcohol comprises n-tridecanol-n-hexadecanol; the fatty acid comprises n-capric acid-n-octadecanoic acid; and the fatty acid ester comprises methyl stearate, ethyl stearate, methyl nonadecanoate, ethyl nonadecanoate, eicosanoic acid methyl ester and eicosanoic acid ethyl ester. The phase-change materials having different phase-change temperatures are mixture of two or three kinds of different phase-change materials. The disposable thermometer is cheap, does not need disinfection and is easy to dispose.
Owner:DONGHUA UNIV

Stabilized Synthetic Brood Pheromone and Race-Specific Ratios of Components for Manipulating the Behavior and Physiology of Honey Bees

This invention relates to a 10-component stabilized synthetic honey bee brood pheromone and methods of stabilizing said pheromone by adding one or more antioxidants, thereby enabling the production and sustained use of commercial products based on that pheromone. The 11-component stabilized pheromone composition formed by adding the antioxidant tertiary-butyl hydroquinone to a synthetic blend of ethyl linoleate, ethyl linolenate, ethyl oleate, ethyl palmitate, ethyl stearate, methyl linoleate, methyl linolenate, methyl oleate, methyl palmitate and methyl stearate can be used in generic or race-specific ratios to manipulate the behavior and improve the performance of worker honey bees, resulting in overall increased vigor of the hive.
Owner:TEXAS A&M UNIVERSITY +1

Substance for regulating body satiety hormone and application thereof

The invention relates to a substance for regulating body satiety hormone and application thereof. The substance is prepared from the following components in parts by weight: 6 to 25 parts of coconut aldehyde, 10 to 39 parts of amyl valerate, 13 to 22 parts of nerol, 2 to 42 parts of hexyl caproate, 8 to 28 parts of ethyl palmitate and 1 to 18 parts of ethyl stearate. The invention provides a substance capable of improving body satiety hormone and reducing body hunger sensation hormone, the substance is utilized by the body in an olfactory manner, the application is convenient, the applicationscene and prospect are wide, and as the substance is zero-energy, the problem of extra energy intake during absorption of traditional weight-reducing food or meal replacement is solved.
Owner:河南思迈尔健康科技有限公司 +2

Nano phytoncide composition for bacteriostasis and preparation method thereof

The invention relates to the field of phytoncide compositions, in particular to a nano phytoncide composition for bacteriostasis and a preparation method thereof. The composition provided in the firstaspect comprises the following components in parts by weight: 50-60 parts of nano phytoncide, 25-35 parts of plant extracts and 20-30 parts of water. Under the action of cane sugar, ethyl stearate, potassium aliphatate and sodium ethoxide, the nano phytoncide prepared can be quickly and uniformly mixed in water and other plant extracts, thus reducing production time; meanwhile, a grapefruit extract, a mint extract, a forsythia suspensa extract, a scindapsus aureus extract and the nano phytoncide are adopted to achieve a synergistic bacteriostatic effect, so that the sterilization effect is strong, the effect is remarkable, the 100% sterilization rate can be achieved within a short time, bacteria can be effectively inhibited, and the composition can be widely applied to multiple fields ofdaily chemical products, cosmetics and the like.
Owner:深圳市芬多精纳米生物科技有限公司

Method for simple and rapid determination of six fatty acid ethyl esters in human whole blood

The invention relates to a method for simple and rapid determination of six fatty acid ethyl esters in human whole blood, belonging to the technical fields of drug detection and forensic identification, wherein the six fatty acid ethyl esters include ethyl myristate, ethyl palmitate, ethyl stearate, ethyl oleate, ethyl linoleate and ethyl arachidonate. The method is low in the usage amount of samples, and as few as 200 [mu]L of samples are examined. The process of pretreatment is simple and fast. A HP-5MS capillary gas chromatographic column and a mass spectrometric detector are employed for determination of the contents of the six fatty acid ethyl esters in human whole blood. The method has the advantages of high sensitivity, good specificity, a wide linear range, simple and fast operation and low usage amount of extraction solvents, and is capable of satisfying high requirements of urgent forensic identification tasks on detection time and easy to operate and promote.
Owner:FUDAN UNIV

A kind of preparation method of biodiesel

The invention discloses a preparation method of biomass diesel. The preparation method comprises the following steps: adding rice husks, walnut shell powder, a catalyst and water into an autoclave, sealing the autoclave, heating the autoclave, adjusting the pressure in the autoclave, carrying out a reaction, and naturally cooling the obtained reaction product to room temperature in order to obtainan oil and water mixture; taking the oil and water mixture, stirring the oil and water mixture and diesel to achieve mixing, carrying out ultrasonic treatment, introducing nano-bubbles to the obtained mixed solution in the ultrasonic process, and carrying out standing layering to separate oil and water; and taking the separated oil, adding the oil into a spherical stainless steel container, thenadding 1,2,3-trimethylcyclopentane, ethyl stearate, nitroethane and diphenyl urea, sealing the spherical stainless steel container, arranging the sealed container on a four-axis grinder, and turning on the four-axis grinder to drive the spherical stainless steel container to rotate randomly in order to obtain the biomass diesel. The biomass diesel oil prepared in the invention has the advantages of high calorific value, high cetane number, small acid value and good stability, and the emission of harmful gases (CO, HC, NO) after combustion is decreased.
Owner:李祥
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