113 results about "Hexadecane" patented technology

The invention relates to a plasma metabolite composition for auxiliary diagnosis of sub-clinical mastitis of dairy cows and application of the plasma metabolite composition. The plasma metabolite combination is a first combination and / or a second combination, and the first combination is composed of glyceryl monolinoleate, 2-methylthiophene, L-cystine, (S)-(+)-citramalic acid, 9-hydroxy-10, 12-octadecadienoic acid, 16-hydroxyhexadecanoic acid, tyrosine hydroxyproline, stearoyl serotonin and histamine; the first composition is composed of 4, 5-dimethyl-2, 4, 5-trimethyloxazole, 12, 13-epoxy octadecadienoic acid, 2-cyclotetradecene-1-ketone, 4 [alpha]-carboxyl-5 [alpha]-cholest-8-ene-3 [beta]-alcohol, N-arachidonyl dopamine d8, 9 (Z) and 11 (E)-conjugated linoleic acid, and the second composition is composed of 2, 5-dihydro-2, 4, 5-trimethyloxazole, 12, 13-epoxy octadecadienoic acid, 2-cyclotetradecene-1-ketone, 4 [alpha]-carboxyl-5 [alpha]-cholest-8-ene-3 [beta]-alcohol, N-arachidonyl dopamine A product prepared based on the plasma metabolite composition and used for auxiliary diagnosis of cow subclinical mastitis is simple in use method and high in accuracy, can be used for assisting a milk somatic cell number method to diagnose cow subclinical mastitis, and reduces the probability of false negative and false positive.

The invention discloses a BimBH3 analogue containing D-type amino acid and N-terminal fatty acid acylation, a preparation method of the BimBH3 analogue and application of the BimBH3 analogue as a PTPN1 inhibitor to development of hypoglycemic drugs. The structural general formula of the novel BimBH3 mimic peptide analogue is shown as a formula I: # imgabs0 #, wherein Raa2 is equal to D-His, D-Leu, D-Pro, D-Ser, D-Arg, D-Gln, D-Lys, D-Trp, D-Val, D-Tyr, D-Ala, Raa3 is equal to D-Gln, Raa7 is equal to D-Arg, and Raa8 is equal to D-Allo-Ile. The mimic peptide compound is derived from a core region of a Bim-BH3 structural domain, different D-type amino acid site-specific replacement modification and N-terminal conjugated hexadecanoic acid modification are adopted for amino acids at the second, third, seventh and eighth sites respectively, the BimBH3 mimic peptide modified by the D-type amino acid is more stable and has higher metabolic stability, and the target binding capacity and inhibitory activity of the BimBH3 mimic peptide can still be reserved or even improved. The BimBH3 mimic peptide compound shows an excellent PTPN1 inhibitor, the ability of resisting protease hydrolase and various digestive enzymes is also remarkably improved, and the BimBH3 mimic peptide compound has longer pharmacological action time and can play a potential long-acting hypoglycemic role through subcutaneous injection or oral administration. The compound is completely prepared by a polypeptide solid-phase synthesis method, and an obtained crude product is subjected to semi-preparative liquid chromatography purification and freeze-drying to obtain a target compound.

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.

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.

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.

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.

The invention relates to the field of electrolytes for aluminum electrolytic capacitors, in particular to an electrolyte solute and a preparation method thereof, an electrolyte and an aluminum electrolytic capacitor. The electrolyte solute comprises a branched chain polycarboxylic acid ammonium mixture, and the branched chain polycarboxylic acid ammonium mixture comprises 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, the additive is prepared from ammonium 5, 7 '-(octadecane-9, 10-diethyl) dioctyl pentadecanedioic acid, ammonium 8-(5-carboxypentyl)-7-octane hexadecanedioic acid, ammonium 10, 11-dioctyl eicosanedioic acid, ammonium 8-hydroxy-7-octane hexadecanedioic acid, ammonium (E)-7-hexadecane-8-octane enedioic acid and ammonium dodecanedioic acid. The electrolyte solute can obviously improve the conductivity and the sparking voltage of the electrolyte, and the high and low temperature resistance, the voltage resistance, the safety and stability performance and the like of the capacitor. Meanwhile, the preparation method of the solute is simple, high in product yield, low in cost, safe and environment-friendly.

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.

The invention relates to a super-hydrophobic thermal management composite coating synthesized by modified spent bleaching clay and a preparation method thereof. The preparation method comprises the following steps: carbonizing a part of spent bleaching clay powder in a tubular furnace; carrying out air burning oxidation treatment on one part of spent bleaching clay powder in a tubular furnace; the method comprises the following steps: respectively adding two parts of spent bleaching clay powder into a mixed solution of hexadecyl trimethyl siloxane, tetraethyl silicate, ammonia water and ethanol, and carrying out hydrophobic treatment to obtain a dispersion liquid; sequentially centrifuging, washing and drying the dispersion liquid to obtain modified oxidized and carbonized spent bleaching clay powder; sequentially carrying out washing, drying and plasma treatment on the two surfaces of the substrate; mixing the oxidized and carbonized waste white clay powder with resin and a curing agent respectively, then adding the mixture into a solvent for stirring treatment, and preparing a spraying coating through ultrasonic oscillation treatment; the spraying paint is sprayed on the two faces of a prepared substrate respectively, and the modified spent bleaching clay synthesized super-hydrophobic thermal management composite coating is obtained after curing. The composite coating prepared by the method can obviously reduce the energy consumption in the aspects of heating and cooling.

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.

The invention provides a high-durability super-amphiphobic aircraft anti-icing coating and a preparation method thereof.The preparation method comprises the steps that silicon dioxide nanoparticles are loaded on the surfaces of micron attapulgite particles in situ to prepare core-shell structure micro-nano composite particles, and low-surface-energy fluorosilane is added for modification; meanwhile, fluorinated modification is conducted on a waterborne polyurethane adhesive through fluorosilane, the modified micro-nano particles are introduced into the modified polyurethane adhesive, then the surface of semi-cured airplane paint is evenly sprayed with the modified polyurethane adhesive, and the super-amphiphobic anti-icing coating is prepared through curing. The super-double hydrophobic surface prepared by the method shows excellent repellency to liquids (water, rapeseed oil, lubricating oil and hexadecane) with different surface tensions, can delay icing of liquid drops on the surface of a coating for 440 seconds at-15 DEG C, and has excellent comprehensive protection performance of wear resistance, airflow impact resistance, oil stain resistance and acid and alkali corrosion resistance; good super-amphiphobic performance can be kept after mechanical wear and chemical corrosion.

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.

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

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

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

Provided is an article with a film that can achieve high levels of both water repellency and oil repellency and is unlikely to harm the properties of a functional film when a functional film is formed under an antifouling film.　The article with a film 1 is equipped with a base material 2, a functional film 3 provided on the base material 2, and an antifouling film 4 provided on the functional film 3. A surface part 3A of the functional film 3 in contact with the antifouling film 4 contains silicon oxide. The antifouling film 4 is configured by coating the surface part 3A of the functional film 3 with silicone having a dimethylsiloxane unit. The sliding angle of 15 μL of water on the surface 4a of the antifouling film 4 is less than 45°, and the sliding angle of 1 μL of n-hexadecane on the surface 4a of the antifouling film 4 is less than 17°.

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.

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.