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102 results about "Hexadecane" patented technology

Hexadecane (also called cetane) is an alkane hydrocarbon with the chemical formula C₁₆H₃₄. Hexadecane consists of a chain of 16 carbon atoms, with three hydrogen atoms bonded to the two end carbon atoms, and two hydrogens bonded to each of the 14 other carbon atoms.

Preparation method and application of catalyst for preparing olefin through hydrogenation of carbon dioxide

The invention relates to the technical field of catalysts, and discloses a preparation method and application of a catalyst for preparing olefin through carbon dioxide hydrogenation. The preparation method comprises the following steps: fully dipping graphite in a mixed solution of dodecane and hexadecane, and taking out to obtain a catalyst carrier; and loading the Fe element and the Mg element into the catalyst carrier by adopting a method of co-precipitating and then roasting to obtain the catalyst for preparing olefin by hydrogenation of carbon dioxide. The catalyst prepared by the preparation method has high stability when being used in a reaction for preparing olefin through hydrogenation of carbon dioxide, can maintain high catalytic activity after long-term use, and has high olefin selectivity at the same time.
Owner:YILI XINTIAN COAL CHEM CO LTD +1

Highly-transparent bio-based polyurethane fluoride-free antifouling coating as well as preparation method and application thereof

The invention discloses a highly-transparent bio-based polyurethane fluoride-free antifouling coating and a preparation method and application thereof.The highly-transparent bio-based polyurethane fluoride-free antifouling coating is prepared by taking tannic acid (TA) as biological polyol, hexamethylene diisocyanate trimer (HDIT) as a cross-linking agent and monohydroxy polydimethylsiloxane (PDMS-OH) as a low-surface-tension material through thermocuring cross-linking, so that the highly-transparent bio-based polyurethane fluoride-free antifouling coating is prepared. And the tannic acid-based polyurethane fluoride-free antifouling coating is prepared. The coating shows up to 99% of optical transparency, has an ultraviolet shielding effect, and has excellent self-cleaning, anti-doodling and anti-artificial fingerprint pollution capabilities, and water, hexadecane, vegetable oil and pump oil easily slide off from the surface without traces. And even if the coating is repeatedly written and erased for 500 times, the coating still keeps excellent anti-graffiti performance. Due to the excellent adhesive force of the TA, the TA can be applied to various base materials. When the coating is bent and folded, the coating is still kept complete, the coating does not crack or peel off, and the coating has a wide application prospect.
Owner:SOUTH CHINA UNIV OF TECH

Compositions for separating plasma and methods of use thereof

The invention relates to the field of plasma separation and detection, in particular to a composition for separating plasma and a using method thereof. The composition comprises: a phase change component, which is selected from n-alkanes, which are selected from at least one of n-tetradecane, n-pentadecane, n-hexadecane, n-heptadecane, n-octadecane, n-nonadecane, n-eicosane, n-heneicosane or n-docosane; a liquid phase carrier component, wherein the liquid phase carrier component is selected from silicone oil; the structural framework and rheology regulation and control component comprises fumed silica, and the structural framework and rheology regulation and control component comprises fumed silica; the dispersion and stabilization auxiliary agent component is selected from at least one of TiO2 and BaSO4, the density adjusting filler component is selected from at least one of TiO2 and BaSO4, and the dispersion and stabilization auxiliary agent component comprises a silane coupling agent. According to the device, plasma and blood cells can be reliably, rapidly and effectively separated only through one-time low-temperature centrifugation, and remixing caused by transportation jolting can be avoided.
Owner:SHANGHAI WEIHE MEDICAL LAB CO LTD

Thermal insulation and waterproof integrated phase change heat storage mortar and preparation method thereof

PendingCN120483620AHexadecaneThermal insulation
The invention discloses thermal insulation and waterproof integrated phase change heat storage mortar and a preparation method thereof, and belongs to the technical field of building materials. The mortar is prepared from the following raw materials: cement, water, fine aggregate, shape-stabilized phase-change material super-hydrophobic silicon dioxide, a water reducing agent and polysorbate, the preparation method of the shape-stabilized phase change material-coated super-hydrophobic silicon dioxide comprises the following steps: S1, carrying out hydrophobic modification on diatomite to obtain hydrophobic modified diatomite; s2, adding n-hexadecane into the hydrophobic modified diatomite, and obtaining a shape-stabilized phase change material through a vacuum impregnation method; and S3, adding the shape-stabilized phase change material and the super-hydrophobic silicon dioxide into water, stirring, performing ultrasonic dispersion, and filtering and drying to obtain the shape-stabilized phase change material-coated super-hydrophobic silicon dioxide. The shape-stabilized phase-change material and super-hydrophobic silicon dioxide are doped into the mortar, so that the compressive strength, the thermal insulation performance and the waterproof performance of the mortar are remarkably improved, and the mortar has excellent durability.
Owner:WUHAN UNIV

Core-shell structure P (MMA-MBA) copolymer heat storage phase change microcapsule as well as preparation method and application thereof

The invention discloses a core-shell structure P (MMA-MBA) copolymer heat-storage phase-change microcapsule, the microstructure is of a spherical structure, the core-shell structure is adopted, the core structure is hexadecane, the shell structure is a methyl methacrylate (MMA) and N, N-methylene bisacrylamide (MBA) copolymer, the emulsifier is lauryl sodium sulfate (SDS), the initiator is potassium persulfate, and the pH value of the core-shell structure P (MMA-MBA) copolymer heat-storage phase-change microcapsule is 7-8. And the coating efficiency is 70-75%. The preparation method comprises the following steps: 1, preparing an oil phase and a water phase; and 2, polymerization reaction of the microcapsule. A phase change cement material based on a core-shell structure P (MMA-MBA) copolymer heat storage phase change microcapsule is prepared by compounding the P (MMA-MBA) copolymer heat storage phase change microcapsule and a cement matrix, and has hydrophobicity; obvious weightlessness exists in two times.
Owner:GUILIN UNIV OF ELECTRONIC TECH +1

Microflora for producing surfactant by anaerobic hydrocarbon decomposition and application thereof

The invention discloses a flora for producing a surfactant through anaerobic hydrocarbon decomposition and application of the flora, and relates to the field of oil and gas resource exploitation. The flora synergistically degrades petroleum hydrocarbon and generates a surfactant through various bacteria and fungi under an anaerobic condition. The flora can grow by taking crude oil or hexadecane as a sole carbon source under an anaerobic condition and produce surface active substances, the anaerobic degradation rate of the crude oil reaches 20-55%, and the surface tension of an anaerobic culture solution can be reduced to 30.0-40.0 mN / m. The flora disclosed by the invention is high in anaerobic degradation rate on petroleum hydrocarbon and stable in activity, can generate a surfactant, and has an application value in the field of oil and gas resource exploitation.
Owner:QUFU NORMAL UNIV

Aqueous zinc ion battery electrolyte, preparation method thereof and aqueous zinc ion battery

The application belongs to the technical field of zinc ion batteries, and provides a water-based zinc ion battery electrolyte, a preparation method thereof and a water-based zinc ion battery. The application provides a water-based zinc ion battery electrolyte comprising the following components: a water-soluble zinc salt 1-2.5 mol / L, an additive 1-6 g / L and water; the additive is 4,7,13,16,21,24-hexaoxa-1,10-diazabicyclo[8,8,8]hexacosane, and the pH value of the water-based zinc ion battery electrolyte is less than or equal to 1. The additive of the application is preferentially adsorbed on the surface of the zinc negative electrode instead of water molecules, and generates a thin and dense solid-state protective layer in situ, which has good ion conductivity and is electron-insulating. The solid-state protective layer is like a raincoat for the zinc negative electrode, which prevents water molecules from reacting with the zinc negative electrode, and at the same time, the tertiary amine ions formed by the ionization of the bridging crown ether shield the corrosion of hydrogen ions on the zinc negative electrode under strong acid conditions.
Owner:GUIZHOU EDUCATION UNIV +1

Optical laminate

To provide an optical laminate having a surface protective film temporarily bonded onto an optical film, the optical laminate capable of preventing air bubbles from generating at an end part of the surface protective film after an autoclave treatment.SOLUTION: An optical laminate includes: an optical film having a polarizing plate including a polarizer and an antiglare layer arranged on one side of the polarizing plate; and a surface protective film including a base material film and an adhesive layer, and temporarily adhered in a separable manner on the antiglare layer of the optical film, interposing the adhesive layer. The optical film has an arithmetic average roughness Ra of 0.15 μm or more on a surface at a surface protective film side, and a difference is 50° or more between a hexadecane contact angle on a surface at the surface protective film side of the optical film and a hexadecane contact angle on the adhesive layer.SELECTED DRAWING: Figure 1
Owner:NITTO DENKO CORP

Optical laminate

To provide an optical laminate having a surface protective film temporarily bonded onto an optical film, the optical laminate capable of inhibiting a lift at an end part of the surface protective film when treated with edge face processing.SOLUTION: An optical laminate includes: an optical film having a polarizing plate including a polarizer and an antiglare layer arranged on one side of the polarizing plate; and a surface protective film including a base material film and an adhesive layer, and temporarily adhered in a separable manner on the antiglare layer of the optical film, interposing the adhesive layer. The optical film has an arithmetic average roughness Ra of 0.15 μm or more on a surface at a surface protective film side, a hexadecane contact angle of 50° or more, and a water contact angle of 105° or more. A high-speed peel force between the surface protective film and the optical film is 0.08 N / 25 mm or more.SELECTED DRAWING: Figure 1
Owner:NITTO DENKO CORP

Hydrogenation method for preparing octadecane and co-producing hexadecane from stearic acid

The invention discloses a hydrogenation method for preparing octadecane and co-producing hexadecane from stearic acid. A raw material containing stearic acid and hydrogen sequentially pass through a fixed bed reactor containing a stearic acid hydrogenation catalyst A and a stearic acid hydrogenation catalyst B together for hydrogenation reaction, and reaction products are separated to finally obtain octadecane and hexadecane. The surface active site density of nickel in the hydrogenation catalyst A is large, and active metal is dispersed more uniformly; and the binding energy between the active metal of B and the carrier in the hydrogenation catalyst is moderate, so that the hydrogenation catalyst has better water resistance. The method provided by the invention improves the conversion rate of stearic acid, reduces the occurrence of side reactions, and has a longer operation period.
Owner:CHINA PETROLEUM & CHEMICAL CORP +1

A method for promoting production of gamma-polyglutamic acid by bacillus fermentation using an oxygen carrier

PendingCN122466033ABiotechnologyHexadecane
This invention relates to the field of microbial fermentation, specifically to a method for promoting the fermentation of Bacillus atrophaeus to produce γ-polyglutamic acid (PGA) using oxygen carriers. This invention involves adding specific alkane oxygen carriers during the initial stage of γ-PGA production via Bacillus atrophaeus NWS-01 fermentation. Hexane, heptane, and hexadecane were selected as effective oxygen carriers, and the optimal single-addition concentration and optimal synergistic addition ratio of each oxygen carrier were determined. This solves the problem of limited γ-PGA yield due to low oxygen transfer efficiency in traditional fermentation processes. Specifically, adding 0.3% heptane alone achieves a γ-PGA yield of 39.4 ± 0.19 g / L, while the synergistic addition of 0.240% hexane, 0.407% heptane, and 1.014% hexadecane results in a maximum yield of 42.1 g / L, representing a 150.6% increase compared to the fermentation system without added oxygen carriers. This method is simple to operate, has high oxygen utilization, low energy consumption, and produces fewer bubbles and lower liquid shear force in the fermentation system, making it suitable for the industrial-scale aerobic high-density fermentation production of γ-PGA.
Owner:XUANKAI BIOTECHNOLOGY (SHANDONG) CO LTD

Aqueous zinc ion battery electrolyte, preparation method thereof and aqueous zinc ion battery

The invention belongs to the technical field of zinc ion batteries, and provides an aqueous zinc ion battery electrolyte, a preparation method thereof and an aqueous zinc ion battery. The invention provides an aqueous zinc ion battery electrolyte. The aqueous zinc ion battery electrolyte comprises the following components: 1-2.5 mol / L of water-soluble zinc salt, 1-6g / L of an additive and water, the additive is 4, 7, 13, 21, 24-hexaoxa-1, 10-diazabicyclo [8, 8, 8] hexacodecane, and the pH value of the aqueous zinc ion battery electrolyte is less than or equal to 1. The additive is adsorbed on the surface of the zinc negative electrode prior to water molecules, and a thin and compact solid protective layer with good ionic conductivity and electronic insulation is generated in situ. The solid protective layer looks like a'raincoat 'for the zinc negative electrode to prevent the action of water molecules and the zinc negative electrode, and at the same time, the corrosion of hydrogen ions to the zinc negative electrode under strong acid conditions is shielded by tertiary amine ions formed by ionization of tertiary amine in the bridge crown ether.
Owner:GUIZHOU EDUCATION UNIV +1

Modified screening type carbon negative electrode material as well as preparation method and application thereof

The invention relates to the technical field of sodium ion battery preparation, in particular to a modified screening type carbon negative electrode material and a preparation method and application thereof.The modified carbon material is obtained by coating the surface of porous carbon powder with a modified material, and coating of the modified material is double-layer coating of a coating material and a phase change material; the phase change material is at least one of paraffin, n-hexadecane, n-octadecane, fatty acid, stearic acid, palmitic acid high-density polyethylene, polyethylene glycol, alcohols and lipids; the coating material is heated and carbonized to coat the surfaces of the porous carbon particles to form a compact carbon layer, and then the phase change material is used for secondary coating, so that the pore size of the surface of the porous carbon is adjusted, the specific surface area of the porous carbon is reduced, meanwhile, the coherence of internal pore channels of the porous carbon can be reserved, and a solid-phase diffusion channel of sodium ions cannot be damaged; and rapid diffusion and storage of sodium ions in pore channels are facilitated.
Owner:NAKUN CARBON SOURCE (TIANJIN) TECHNOLOGY CO LTD +1

Cellulose nanocrystal modified polylactic acid composite thin film material capable of being subjected to melt blending and nanometer dispersion and preparation method of cellulose nanocrystal modified polylactic acid composite thin film material

PendingCN121574517AHexadecanePolymer science
The invention belongs to the technical field of preparation of nano composite materials, and particularly relates to a melt-blending nano-dispersed cellulose nanocrystal modified polylactic acid composite film material and a preparation method of the melt-blending nano-dispersed cellulose nanocrystal modified polylactic acid composite film material. Comprising polylactic acid and hexadecane modified cellulose nanocrystals, and the addition amount of the hexadecane modified cellulose nanocrystals is 1%-5% of the mass of the polylactic acid. The preparation method comprises the following steps: activating cellulose nanocrystals by adopting sodium hydroxide, and then adding halogenated hexadecane for reaction to obtain the hexadecane modified cellulose nanocrystals. Through surface hydrophobization green modification, agglomeration caused by drying is avoided, the interfacial compatibility with PLA and other hydrophobic polymers is enhanced, and nano dispersion of cellulose nanocrystal powder in a polylactic acid matrix is achieved through shear force in melt processing and melt fluidity of cetane macromolecules. Therefore, crystallization and heat resistance of polylactic acid are improved.
Owner:HUBEI UNIV OF TECH

A positively charged quaternary ammonium salt polymer catalyst and its preparation method and application

The invention belongs to the field of water treatment, and more particularly to a positively charged quaternary ammonium salt polymer catalyst and its preparation method and application. The catalyst provided by the present invention is made of a positively charged quaternary ammonium salt precursor through polymerization and anion exchange, and the positively charged quaternary ammonium salt precursor is the reaction product of acrylate and halogenated alkane; the acrylate is one or more of dimethylaminoethyl acrylate, dimethylaminoethyl methacrylate and 3 (dimethylamino) ethyl acrylate; the halogenated alkane is one or more of undecane bromide, dodecane bromide, tetradecane bromide, hexadecane bromide, eicosane bromide, dodecane chloride, tetradecane chloride and hexadecane chloride. The catalyst provided by the present invention has good stability and antibacterial properties, can efficiently and selectively catalyze the degradation of organic pollutants by peroxide, has important practical significance for removing wastewater rich in organic pollutants, and has a wide range of applications in water pollution control and water environment restoration.
Owner:UNIV OF SCI & TECH OF CHINA

Laminate for thermal molding, molded article using same, and method for manufacturing molded article

According to one embodiment, the present invention provides a laminate for post-curing thermoforming in which a substrate layer, an uncured hard coat layer, and a protective film are laminated in this order, the surface free energy of the surface of the hard coat layer being 20.0 mJ / m2 or less after the protective film is removed and the hard coat layer is cured, and the surface free energy of the surface of the hard coat layer being 20.0 mJ / m2 or less. The surface free energy is calculated according to the value of the average contact angle between the hard coating surface and water and the value of the average contact angle between the hard coating surface and cetane by a Kaelble-Uy method.
Owner:MITSUBISHI GAS CHEM CO INC

A synergistic composition for the treatment of disorders related to central nervous system (CNS) excitability.

The present invention relates to a synergistic composition for the treatment of disorders related to central nervous system (CNS) excitability. The synergistic composition comprises combination of GABA receptor agonists and synaptic plasticity enhancer or salts thereof along with pharmaceutically acceptable excipients. The GABA receptor agonists are selected from the group consisting of 4-[(2R)-2,4-Dihydroxy-3,3-dimethylbutanamido]butanoic acid, 4- (Pyridine-3-carbonylamino)butanoic acid and 4-(hexadecanoylamino)butanoic acid or salts thereof. The synaptic plasticity enhancer are selected from magnesium 2- acetamidoethanesulfonate, magnesium bis (2-aminoethane-1-sulfonate), magnesium;(2S,3R)- 2,3,4-trihydroxybutanoate, N-(2-Hydroxyethyl)hexadecanamide, 1-(4-aminobutyl)guanidine and 5'-inosinic acid or salts thereof.
Owner:CELAGENEX RES INDIA PVT LTD

Optical laminate

Provided is an optical laminate in which a surface protection film is temporarily affixed to an optical film, and in which the generation of air bubbles at the end of the surface protection film after autoclave treatment is suppressed. An optical laminate according to an embodiment of the present invention comprises: an optical film having a polarizing plate including a polarizer and an anti-glare layer disposed on one side of the polarizing plate; and a surface protection film which comprises a base film and an adhesive layer and is temporarily affixed to the anti-glare layer side of the optical film in a peelable manner by means of the adhesive layer. The arithmetic average roughness Ra of the surface of the optical film on the surface protection film side is 0.15 [mu] m or more; the difference between the cetane contact angle of the surface of the optical film on the surface protection film side and the cetane contact angle of the adhesive layer is 50 DEG or less.
Owner:NITTO DENKO CORP

Preparation method and application of sulfur vacancy regionally distributed MoS2 catalyst

The invention relates to a preparation method and application of a sulfur vacancy regional distribution MoS2 catalyst. The preparation method comprises the following steps: uniformly stirring a molybdenum source and a sulfur source in deionized water to form a precursor mixed solution; directly adding tetramethylammonium bromide into the mixed solution, and uniformly stirring to obtain the mixed solution; when the stirring time is 5-30 min, the MoS2 catalyst with the dominant in-plane sulfur vacancy is synthesized; when the stirring time is more than 60-360 minutes, synthesizing a MoS2 catalyst with dominant edge sulfur vacancy; and then reacting, washing, drying and annealing to obtain the catalyst. The catalyst is used for preparing alcohol or alkane through palmitic acid hydrodeoxygenation. The palmitic acid is subjected to full-chain hydrodeoxygenation to obtain hexadecane, and the product selectivity reaches 99%. MoS2 (E)-A dominated by edge sulfur vacancies accurately controls selective partial hydrodeoxygenation to generate hexadecanol, the selectivity reaches up to 80%, and generation of by-products due to excessive hydrogenation is avoided. And the preparation requirements of on-demand products of alkanes / alcohols are met.
Owner:TIANJIN UNIV

Preparation method of copper sheet corrosion inhibitor for gasoline and diesel components produced as by-products from waste lubricating oil hydrogenation

The present invention discloses a method for preparing a copper sheet corrosion inhibitor for gasoline and diesel components produced as byproducts from the hydrogenation of waste lubricating oils, belonging to the technical field of petroleum product corrosion inhibition. The method comprises preparing a saturated isooctane / n-hexadecane solution of tetrazole; preparing an n-octane / n-hexadecane solution of 8-hydroxyquinoline or imidazole; mixing dropwise, adjusting the pH, and heating in a water bath; adding organic cerium, cooling, and aging the solution. The copper sheet corrosion inhibitor for gasoline and diesel components produced as byproducts from the hydrogenation of waste lubricating oils prepared using this method can significantly reduce the corrosion level of the copper sheet produced as a byproduct from the hydrogenation of waste lubricating oils, even at a very low dosage, thereby achieving the technical purpose of inhibiting copper sheet corrosion.
Owner:WUHAN KELIN FINE CHEM

Preparation method of isohexadecane solvent naphtha

The invention discloses a preparation method of isohexadecane solvent naphtha, which comprises the following steps: treating a raw material isohexadecane mixture by a feed adsorption tank and a feed filter, feeding into a feed buffer tank, boosting by a hydrogenation feed pump, mixing with recycle hydrogen, exchanging heat with reaction generated oil, and feeding into a pre-hydrogenation reactor; a pre-hydrogenation reaction product is mixed with high-pressure circulating oil and circulating hydrogen, is subjected to heat exchange with reaction generated oil, is fed into a hydrofining reactor, is subjected to heat exchange, is cooled, and is fed into a high-pressure separator; the reaction generated oil and the hydrogenation generated oil at the bottom of the high-pressure separator are sent to a product separation tower after components are removed by a light component removal tower; the product separation tower is provided with a side stream stripping tower, isohexadecane solvent oil is extracted from the bottom of the side stream stripping tower, and byproducts such as isododecane solvent oil and isoeicosane solvent oil are extracted from the top and the bottom of the separation tower respectively. The method prolongs the service life of the catalyst and the operation cycle of the device, reduces the operation energy consumption of the device, reduces the carbon emission and saves the investment.
Owner:SINOPEC GUANGZHOU ENG CO LTD +1

Modified waste white clay synthetic super-hydrophobic thermal management composite coating and preparation method thereof

ActiveCN119192954BHexadecaneSilicic acid
A modified waste clay synthetic super-hydrophobic thermal management composite coating, a preparation method thereof, one part of waste clay powder is subjected to carbonization treatment in a tube furnace; one part of waste clay powder is subjected to air-burning oxidation treatment in a tube furnace; two parts of waste clay powder are respectively added into a mixed solution of hexadecane trimethyl siloxane, tetraethyl silicate, ammonia and ethanol for hydrophobic treatment to obtain a dispersion; the dispersion is subjected to centrifugal, washing and drying treatment in sequence to obtain modified waste clay powder after oxidation and carbonization; two surfaces of a substrate are sequentially subjected to washing, drying and plasma treatment; the waste clay powder after oxidation and carbonization is mixed with resin and curing agent respectively, and then added into a solvent for stirring treatment and ultrasonic oscillation treatment to prepare a spray coating; the spray coating is sprayed on two surfaces of the prepared substrate respectively, and a modified waste clay synthetic super-hydrophobic thermal management composite coating is obtained after curing. The composite coating prepared by the method can significantly reduce energy consumption in heating and cooling.
Owner:JIANGSU TIANWO HEAVY IND TECH CO LTD +1

Phase-change self-repairing lightweight aggregate concrete material and preparation method thereof

The invention provides a phase-change self-repairing lightweight aggregate concrete material and a preparation method thereof.The method comprises the steps that 1, phase-change self-repairing lightweight aggregates prepared from hexadecane, dodecanol, decanoic acid, lauric acid, tetradecanoic acid and a repairing agent are mixed according to the mass ratio of 1: 1: 1: 1: 1, and composite phase-change self-repairing lightweight aggregates are obtained; secondly, the shale pottery sand is pre-wetted to reach a saturated surface dry state; 3, uniformly dry-mixing silica fume, cement, fly ash, floating beads and nano-silica in a concrete mixer to obtain a primarily mixed dry material; 4, adding composite phase change self-repairing lightweight aggregate, 50% of water, 50% of an additive and 50% of carbon fibers into the primarily mixed dry material, and uniformly stirring to obtain a medium mixed material; and 5, adding shale pottery sand, 50% of water, 50% of an additive and 50% of carbon fibers into the medium mixture, and uniformly stirring to obtain the phase-change self-repairing lightweight aggregate concrete.
Owner:SHANGHAI CONSTRUCTION GROUP CO LTD

Artesunate powders, pharmaceutical compositions and methods of manufacture

Disclosed herein are powders including a therapeutically effective amount of 4-oxo-4-[[(1R,4S,5R,8S,9R,10S,12R,13R)-1,5,9-trimethyl-11,14,15,16-tetraoxatetracyclo[10.3.1.04,13.08,13]1exadecane-10-yl]oxy]butanoic acid (artesunate) or a pharmaceutically acceptable salt thereof that can be easily manufactured, sterilized and packaged. Processes for producing these powders and pharmaceutical compositions containing these powders are also disclosed.
Owner:AMIVAS INC

A Nb-based single-atom catalyst for preparing hexadecane from palmitic acid and its preparation method

The present invention belongs to the field of biomass energy utilization and relates to a Nb-based single-atom catalyst for the production of hexadecane from palmitic acid and its preparation method. The catalyst is synthesized hydrothermally using a co-complexation strategy of ammonium niobium oxalate and chloroplatinic acid to introduce platinum atoms into the niobium oxide framework. Although the added platinum level is only 0.54%, it exhibits excellent selectivity and activity. The catalyst effectively inhibits decarboxylation side reactions, reduces the production of byproducts such as carbon dioxide, and improves selectivity for long-chain alkanes. The palmitic acid hydrodehydration reaction method using this catalyst can achieve high selectivity and high conversion of hexadecane under specific reaction conditions (such as temperature, pressure, reaction time, and catalyst-to-substrate mass ratio). The catalyst and method of the present invention have important application value for biomass energy utilization and reducing carbon dioxide emissions, particularly in the production of long-chain alkanes such as diesel and aviation fuel.
Owner:SOUTHEAST UNIV

High-entropy alloy catalyst for palmitic acid hydrodeoxygenation to hexadecane reaction and preparation method thereof

The application belongs to the technical field of catalyst preparation, and provides a high-entropy alloy catalyst for palmitic acid hydrodeoxygenation to produce hexadecane and a preparation method thereof.The high-entropy alloy catalyst is a PtRuNiCe / MgAlO catalyst, which is composed of a MgAlO carrier prepared by calcining magnesium-aluminum hydrotalcite and Pt, Ru, Ni and Ce four kinds of metals loaded on the MgAlO carrier, and the molar ratio of the four kinds of metals is 1:1:1:1.The PtRuNiCe / MgAlO high-entropy alloy catalyst is used for palmitic acid hydrodeoxygenation to produce hexadecane, and excellent catalytic activity and hexadecane selectivity are exhibited, and the catalyst still maintains relatively excellent catalytic performance and good stability after being used for multiple cycles.
Owner:EAST CHINA UNIV OF SCI & TECH

A long-lasting makeup foundation

PendingCN122251286AReliable moisturizingReliable oil control effectCosmetic preparationsMake-upHexadecaneGlycerol
The application discloses a long-acting makeup holding foundation liquid, which comprises water, titanium dioxide, hydrogenated polydecene, isododecane, isohexadecane, dimethicone, caprylic acid / capric acid triglyceride, dipropylene glycol, silica, polyglyceryl-2 dipolyhydroxystearate, synthetic fluorphlogopite, polymethylsilsesquioxane, a film forming agent, magnesium sulfate, cetyl PEG / PPG-10 / 1 dimethicone, lithium montmorillonite, triethoxysilane, ethanol, dimethicone / vinyl dimethicone crosspolymer, alumina, dimethiconol, collagen, natural extract, a colorant, a moisturizing agent and trace additives. The long-acting makeup holding foundation liquid has reliable water supplementing and moisturizing and oil control effects, can selectively absorb and control oil, has reliable skin friendliness, can reliably protect makeup of oily skin, and avoids the problem of makeup removal caused by facial oil secretion.
Owner:GUANGZHOU YUMING BIOLOGICAL TECH CO LTD

Preparation method and application of aromatic dicarboxylic acid-terbium complex fluorescence sensor array

The invention discloses a preparation method and application of an aromatic dicarboxylic acid-terbium complex fluorescent sensor array. The fluorescent sensor array comprises three fluorescent probes, the terbium complexes are respectively a 5-methoxy isophthalic acid-terbium complex, a 5-hexadecyloxy isophthalic acid-terbium complex and a 5-(6 '-cholesterol) hexyloxy isophthalic acid-terbium complex, and the preparation method comprises the following steps: (1) dissolving an aromatic dicarboxylic acid ligand in DMSO (dimethylsulfoxide) to obtain an aromatic dicarboxylic acid ligand mother solution; dissolving a terbium source in distilled water to obtain terbium ion mother liquor; and (2) adding the terbium ion mother liquor into an HEPES buffer solution, adding an aromatic dicarboxylic acid ligand mother liquor into the HEPES buffer solution, and carrying out constant-temperature reaction at 30-40 DEG C for 40-95 minutes to obtain the aromatic dicarboxylic acid-terbium complex. The fluorescent sensor array can be used for detecting tetracycline, cefixime, chloramphenicol and ciprofloxacin, and is high in accuracy and sensitive.
Owner:XIAN UNVERSITY OF ARTS & SCI

Rubber sign containing epoxy group agglomerated siloxane microsphere emulsion and preparation method of rubber sign

PendingCN121471486ASodium bicarbonateHexadecane
The invention belongs to the technical field of high polymer materials, and particularly relates to a rubber label containing an epoxy group agglomerated siloxane microsphere emulsion and a preparation method thereof.The preparation method comprises the steps that S1, sodium dodecyl sulfate, sodium bicarbonate and sodium dihydrogen phosphate serve as raw materials to prepare a water phase, modified silane, n-hexadecane and azodiisobutyronitrile serve as raw materials to prepare an oil phase, and the oil phase is prepared into an oil phase; carrying out emulsification treatment on the water phase and the oil phase to obtain a miniemulsion, and carrying out polymerization reaction on the miniemulsion to obtain an epoxy group-containing agglomerated siloxane microsphere emulsion; s2, polyol, isocyanate, a chain extender, 1, 4-butanediol and stannous octoate are used as raw materials to prepare a prepolymer; and S3, adding the epoxy group-containing agglomerated siloxane microsphere emulsion into the prepolymer for stirring reaction, and then pouring into a mold for molding to obtain the rubber label containing the epoxy group-containing agglomerated siloxane microsphere emulsion. The hardness and heat resistance of the material are effectively improved, and good flame retardant property is obtained.
Owner:深圳市联星服装辅料有限公司