24 results about "Dodecanol" patented technology

The invention discloses a generalized pustular psoriasis diagnosis marker based on metabonomics and application of the generalized pustular psoriasis diagnosis marker. The diagnostic marker is prepared from one or more of the following 35 compounds: pyruvic acid, alpha-ketoisovaleric acid, 2-hydroxybutyric acid, 3-hydroxybutyric acid, methane thiophosphoric acid, proline, uracil, tranexamic acid, 4-aminobutyric acid, threonine, scopoletin, dodecanol, N-methyl-L-leucine, L-cysteine-glycine and L-kynurenine. The feed additive is prepared from the following raw materials: 3-hydroxybenzoic acid, allantoin, delta-tocopherol, xylofuranose, glucose-1-phosphoric acid, pyrophosphate, taurine, L-asparagine, phthalic acid, 4-(dimethylamino) azobenzene, 5-tert-butyl-1h-indole-2, 3-dione, quinic acid, glucose, histidine, lysine, palmitic acid, 7-methylguanine, oleic acid and whale acid. The marker can be used for accurately distinguishing patients with generalized pustular psoriasis from healthy people.

The invention relates to a microemulsion type suckercide as well as a preparation method and application thereof, the microemulsion type suckercide comprises the following components in percentage by weight: 30% of mixed ester alcohol component, 10% of absolute ethyl alcohol, 5% of n-butyl alcohol, 25% of emulsifier and 30% of water; the mixed ester alcohol component comprises 36 to 54.6 percent of n-caprylic alcohol, 45 to 63.9 percent of n-decanol and 0.1 to 0.4 percent of dodecanol, and the emulsifier is preferably polyoxyethylene 40 hydrogenated castor oil. The microemulsion type suckercide can be applied as a tobacco suckercide, when the suckercide is applied to tobacco suckercide, the dilution multiple is 8 times, the application method is cup spraying suckercide, and the dosage of the diluted suckercide per plant is 25 mL. The microemulsion type suckercide is green in formula, has an efficient suckercide effect on tobacco, is long in lasting period, does not contain components such as pendimethalin, butralin and flumetralin, and avoids the problem that chemical pesticide residues in tobacco leaves exceed the standard after an existing chemical suckercide is applied.

The invention discloses a generalized pustular psoriasis diagnosis marker based on metabonomics and application of the generalized pustular psoriasis diagnosis marker. The diagnostic marker is prepared from one or more of the following 35 compounds: pyruvic acid, alpha-ketoisovaleric acid, 2-hydroxybutyric acid, 3-hydroxybutyric acid, methane thiophosphoric acid, proline, uracil, tranexamic acid, 4-aminobutyric acid, threonine, scopoletin, dodecanol, N-methyl-L-leucine, L-cysteine-glycine and L-kynurenine. The feed additive is prepared from the following raw materials: 3-hydroxybenzoic acid, allantoin, delta-tocopherol, xylofuranose, glucose-1-phosphoric acid, pyrophosphate, taurine, L-asparagine, phthalic acid, 4-(dimethylamino) azobenzene, 5-tert-butyl-1h-indole-2, 3-dione, quinic acid, glucose, histidine, lysine, palmitic acid, 7-methylguanine, oleic acid and whale acid. The marker can be used for accurately distinguishing patients with generalized pustular psoriasis from healthy people.

The invention discloses a phase change material and an indoor refrigeration air conditioning system using the same, and belongs to an indoor air conditioning system, the phase change material comprises the following components by weight percentage: 78%-82% of modified sodium nitrate hydrate, 9%-11% of dodecanol derivative, 4%-6% of graphite powder, 0.8%-1.2% of borax, 2.5%-3.5% of trichloroethyl phosphate, and 0.8%-1.2% of 2, 6-di-tert-butyl-4-methylphenol. The phase change temperature of the composite-formula phase change material is controlled to be 10 + / -0.5 DEG C, the composite-formula phase change material is more suitable for the requirement of indoor refrigeration, the latent heat of the composite-formula phase change material reaches 200J / g, the absorption duration is remarkably prolonged, and the requirement of long-acting cooling can be met. And after the composite phase change material is applied to an air conditioning system, cold storage can be carried out through a refrigerating machine during off-peak electricity, cold energy is released by the phase change material in non-off-peak electricity time, the electric charge cost can be remarkably saved in long-term use, and the load pressure on a power grid is reduced in peak hours.

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.

This invention discloses an ultra-low friction lubricating material system with self-catalytic effect and its preparation method, belonging to the field of lubricant technology. The ultra-low friction lubricating material system is composed of a base oil, an organometallic catalyst, and organic additives. The organometallic catalyst is at least one selected from ferrocene, cobalt carbonate, cobalt oxalate, copper acetate, and nickel oxalate. The organic additives are at least one selected from o-xylene, ethylene glycol, dodecanol, oleic acid, and tetraethyl orthosilicate. During friction, the organometallic catalyst releases metal ions, which, under the action of frictional heat and contact pressure, catalyze the base oil components to form a carbonaceous lubricating film in situ on the surface of the friction pair. The organic additives provide an additional carbon source during friction, working together with the organometallic catalyst to reduce the break-in time for the friction pair to reach a stable state. This lubricating material system not only significantly reduces the coefficient of friction and wear rate but also significantly shortens the break-in time.

The invention relates to a tobacco bud inhibitor based on fatty alcohol, which comprises the following components in percentage by weight: 30% of mixed ester alcohol component, 15% of polyoxyethylene 40 hydrogenated castor oil and 55% of absolute ethyl alcohol, the mixed ester alcohol component comprises 35%-54.6% of n-caprylic alcohol, 45%-64.6% of n-decanol and 0.1%-0.4% of dodecanol, the tobacco suckercide is an emulsifiable concentrate suckercide, and the tobacco suckercide effect can reach 80% or above. The tobacco suckercide is reasonable in formula, good in suckercide effect, long in lasting period and free of pendimethalin, butralin, flumetralin and other components, and the problem that after an existing chemical suckercide is applied, tobacco leaf chemical pesticide residues exceed the standard is solved.

The application belongs to the technical field of isomer separation, and particularly relates to a metal oxide modified MgO-SiO2 solid alkali catalyst, a preparation method and application thereof. The metal oxide modified MgO-SiO2 solid alkali catalyst is prepared first, and under the catalyst, the secondary ester in dodecanol ester isomers reacts with acid or acyl chloride as much as possible, and the reaction of the hydroxyl on the primary ester is reduced as much as possible. After the dodecanol ester formed by the reaction is separated, the content of the primary ester in the dodecanol ester is naturally obviously improved. There are a large number of basic centers on the surface of the catalyst, the steric hindrance of the hydroxyl on the secondary ester is small, the secondary ester is more easily combined with the basic centers on the surface of the carrier and subjected to subsequent reaction, and the steric hindrance of the hydroxyl on the primary ester is large, so the primary ester is not easily adsorbed on the basic centers of the catalyst, thereby reducing the reaction probability of the primary ester.

The invention discloses a generalized pustular psoriasis diagnosis marker based on metabonomics and application of the generalized pustular psoriasis diagnosis marker. The diagnostic marker is prepared from one or more of the following 35 compounds: pyruvic acid, alpha-ketoisovaleric acid, 2-hydroxybutyric acid, 3-hydroxybutyric acid, methane thiophosphoric acid, proline, uracil, tranexamic acid, 4-aminobutyric acid, threonine, scopoletin, dodecanol, N-methyl-L-leucine, L-cysteine-glycine and L-kynurenine. The feed additive is prepared from the following raw materials: 3-hydroxybenzoic acid, allantoin, delta-tocopherol, xylofuranose, glucose-1-phosphoric acid, pyrophosphate, taurine, L-asparagine, phthalic acid, 4-(dimethylamino) azobenzene, 5-tert-butyl-1h-indole-2, 3-dione, quinic acid, glucose, histidine, lysine, palmitic acid, 7-methylguanine, oleic acid and whale acid. The marker can be used for accurately distinguishing patients with generalized pustular psoriasis from healthy people.

The invention discloses a preparation method of dodecyl chloroformate, which comprises the following steps: heating dodecanol to melt the dodecanol into a liquid state, introducing phosgene for reaction, reducing the reaction temperature to 0-20 DEG C in the reaction process, continuing the reaction until the content of the dodecanol in the reaction system is less than 0.5%, stopping introducing the phosgene, and keeping the temperature to obtain a reaction liquid; and heating the reaction liquid to 30 DEG C or above, introducing nitrogen, and removing impurities in the reaction liquid to obtain dodecyl chloroformate. Compared with the conventional method, the preparation method of dodecyl chloroformate can effectively improve the reaction conversion rate and selectivity by optimizing the reaction temperature of each stage in the reaction process, and can quickly and simply prepare high-yield and high-purity dodecyl chloroformate, the content is greater than or equal to 98%, the yield is greater than or equal to 98%, the product competitiveness can be improved, and the method is suitable for industrial production. The industrial application is convenient to realize and the industrial practicability is high.

The application discloses molybdenum-doped nano zinc oxide with high visible light photocatalytic performance and a preparation method and application thereof. The molybdenum-doped nano zinc oxide is prepared from 1-octadecene, 1-dodecanol, oleic acid, a zinc source and a molybdenum source through vacuum degassing treatment, uniform stirring under a nitrogen atmosphere, heating to 100-140 DEG C, keeping warm until solid particles are dissolved, heating to 220-250 DEG C, keeping warm for 0.5-1 h of reaction, and cooling, washing and drying. The molybdenum-doped nano zinc oxide produces a local surface plasmon resonance absorption peak in the range of 600-700 nm through molybdenum ion doping, and the nano powder has a diameter of 5-20 nm; and the visible light photocatalytic performance of the zinc oxide material is greatly improved under the condition of visible light.

The invention relates to a rectification process parameter optimization method for wastewater treatment of a sodium flotation agent workshop, which comprises the following steps: system pretreatment: starting a cooling system and a heating system of a rectification system, and checking the pressure state of a dehydrating tower (T0101) at the same time; and checking whether the filler in the dehydrating tower is blocked or not, and cleaning if the filler is blocked. By optimizing key process parameters of a dehydrating tower (T0101) and a separating tower (T0102) and combining step-by-step adjustment of an operation process, dual goals of up-to-standard discharge of wastewater and efficient recovery of raw materials are achieved, the tower top temperature of the dehydrating tower is set to be 92 DEG C, the tower kettle temperature is set to be 130 DEG C, the feeding amount is set to be 0.178 m < 3 > / h, the reflux ratio is set to be 5, the tower top temperature of the separating tower is set to be 127 DEG C, the tower kettle temperature is set to be 200 DEG C, the feeding amount is set to be 0.152 m < 3 > / h, and the reflux ratio is set to be 5. The method has the advantages that the content of organic matters in the wastewater can be controlled within a standard range by matching with specific start-stop and regulation processes, the recovery rates of morpholine and dodecanol are obviously improved, the energy consumption is reduced, the existing rectification system does not need to be massively transformed, and the method can be directly applied to industrial production.

The invention relates to hard film anti-rust oil and a preparation method thereof. The hard film anti-rust oil comprises the following raw materials: base oil, a film-forming agent, a plasticizer and an anti-rust agent, the film-forming agent comprises rosin, and the plasticizer comprises dodecanol. The hard film anti-rust oil contains rosin and dodecanol at the same time, the rosin and the dodecanol are compounded, high adhesive force brought by polar groups of the rosin is reserved, the flowability of molecular chains is improved through long-chain alkyl of the dodecanol, and the bending performance is improved while the high adhesive force of a film layer is kept. In addition, conjugated double bonds in the rosin are easy to oxidize and yellow under the action of illumination and oxygen, so that the appearance of the film becomes poor; long-chain alkyl of dodecanol can wrap rosin molecules, contact between the rosin molecules and air and ultraviolet rays is reduced, and through an accelerated aging test, the yellowing degree of a mixed system is reduced to 3.2 or below from 8.5 of pure rosin.

This invention provides a thickener for fracturing, its preparation method, and a fracturing fluid. The thickener preparation method includes: reacting monomers in an aqueous environment using an azo initiator and a redox initiator; the reaction products are then sequentially granulated, hydrolyzed, dried, and powdered to obtain the fracturing thickener; the monomers include a hydrophilic monomer, a cationic monomer, a first anionic monomer, a second anionic monomer, and a composite supramolecular monomer composed of octylphenol polyoxyethylene ether acrylate and nonylphenol polyoxyethylene ether acrylate in a mass ratio of 3.5-4:1. The fracturing fluid contains the above-mentioned thickener and a nano-penetrating agent; the raw material components of the nano-penetrating agent include limonene, water, a dihexyldimethylammonium chloride modified flake molybdenum disulfide nanofluid solution, dodecanol, Tween-80, and Span-80 in a mass ratio of 2.5-3.5:2:4.5-5.5:0.8-1.2:0.4-0.6:0.4-0.6.

The application belongs to the technical field of functional polymer materials, and particularly relates to a magnetic nanoparticle modified polymer monolithic column, a preparation method and application. The monolithic column is prepared by an in-situ thermal initiation polymerization method, styrene is used as a functional monomer, divinylbenzene is used as a crosslinking agent, dodecanol and toluene are used as binary pore-forming agents, azobisisobutyronitrile is used as an initiator, and Fe3O4 / SiO2 composite nanoparticles are added, and the magnetic nanoparticle modified polymer monolithic column is prepared through a polymerization reaction. The preparation method is simple, easy to operate and mild in reaction conditions, the prepared monolithic column is uniform in structure, good in permeability and large in specific surface area, and has good separation performance. As a separation medium, the prepared monolithic column is combined with a USB4000 optical fiber spectrometer by using high-frequency electromagnetic induction heating technology, a new online detection method of benzene series is established, the application range of the monolithic column is expanded, and a novel idea is provided for chromatographic separation and detection technology.

The invention discloses lightweight thermal insulation concrete as well as a preparation method and application thereof, and belongs to the technical field of lightweight thermal insulation materials. The concrete comprises cement, fly ash, expanded perlite, polystyrene foam particles, a water reducing agent, a functional foaming liquid, a foam stabilizer, cellulose ether and water. Wherein the functional foaming liquid is formed by compounding sodium dodecyl benzene sulfonate, terephthalic acid, sodium carboxymethyl cellulose and tannic acid, and the foam stabilizer is composed of dodecanol and decyl glucoside according to the mass ratio of 1: 1. According to the invention, a nanotube network is formed in situ on a bubble interface through the functional foaming liquid, and the synergistic foam stabilizing effect of the composite foam stabilizer is combined, so that the foam stability is remarkably improved, and the pore structure of a hardened body is optimized. The obtained concrete has the advantages of low density, low heat conductivity coefficient, high compressive strength, excellent freeze-thaw resistance, chloride ion permeation resistance, carbonization resistance and durability, and is suitable for building non-bearing wall self-insulation systems, roof insulation layers and fireproof isolation belts.

The invention relates to the technical field of sodium flotation reagents, and discloses a process optimization method for improving the conversion rate of dodecanol in a sodium flotation reagent and reducing the COD (Chemical Oxygen Demand) of wastewater, which comprises the following steps: preparing three reaction kettles, transforming a No.3 reaction kettle, namely transforming a gas phase system of the reaction kettle, additionally installing a temperature monitoring device, and carrying out a pressure resistance experiment. A segmented control strategy is adopted: the dripping speed of morpholine and the reaction temperature of a No.3 reaction kettle are regulated and controlled, the stirring speed, the catalyst dosage and the hydrogen flow are regulated and controlled, a condensate discharge control experiment is carried out, finally, a rectification system experiment is carried out, and parameters of a dehydration tower rectification system are monitored. According to the present invention, the condenser, the gas phase pipe, the thermometer, the sight glass and the like of the reaction kettle are transformed so as to ensure the safe and stable experiment, provide the good foundation for the process optimization, and significantly improve the conversion rate and the grade of the product by adjusting the morpholine dropping speed and time, the stirring speed, the reaction kettle temperature, the catalyst consumption and other parameters.

The invention discloses a preparation method of an early-strength quick-hardening micro-expansion grouting material for a reinforcing steel bar sleeve. A production raw material formula comprises the following components in parts by mass: 720 parts of sulfur silicate cement, 80-125 parts of a composite retarding regulator, 100-154 parts of a composite micro-expansion regulator, 50-150 parts of silicon nitride powder, 750-850 parts of brown aluminum oxide, 0.6-1.2 parts of dodecanol random polyether and 9-13 parts of a polycarboxylate superplasticizer. The composite retarding regulator comprises phosphorus slag powder; the composite micro-expansion regulator comprises a calcium-based solid waste admixture. The grouting material has the advantages that the effects of high early strength, excellent flowability and micro-expansibility of the grouting material for the reinforcing steel bar sleeve can be realized, the grouting material has good mechanical property, flowability and durability, can permeate into fine gaps and is good in compactness by optimizing the formula design, and the good flowability ensures that the grouting material is free of bleeding and segregation during construction, and the grouting material has good durability. And the strict requirement of a fabricated building on the connecting joint is met.

The application discloses a preparation method of a barrier antibacterial TPU composite film. Graphene oxide is prepared by using an improved hummers method, fluorinated graphene is prepared by using hydrofluoric acid as a fluorine source, the fluorinated graphene is used as a carbon source, and fluorinated graphene quantum dots are prepared under the action of an oxidant and an alkaline condition. Chitosan is dissolved in an acetic acid solution and reacts with the FGQDs under the action of dodecanol to form a barrier antibacterial agent CS / FGQDs. The TPU composite film produced by using the barrier antibacterial agent not only has a certain improvement in antibacterial performance, but also has improved barrier performance, and can generate great social and economic benefits.

The invention discloses a generalized pustular psoriasis diagnosis marker based on metabonomics and application of the generalized pustular psoriasis diagnosis marker. The diagnostic marker is prepared from one or more of the following 35 compounds: pyruvic acid, alpha-ketoisovaleric acid, 2-hydroxybutyric acid, 3-hydroxybutyric acid, methane thiophosphoric acid, proline, uracil, tranexamic acid, 4-aminobutyric acid, threonine, scopoletin, dodecanol, N-methyl-L-leucine, L-cysteine-glycine and L-kynurenine. The feed additive is prepared from the following raw materials: 3-hydroxybenzoic acid, allantoin, delta-tocopherol, xylofuranose, glucose-1-phosphoric acid, pyrophosphate, taurine, L-asparagine, phthalic acid, 4-(dimethylamino) azobenzene, 5-tert-butyl-1h-indole-2, 3-dione, quinic acid, glucose, histidine, lysine, palmitic acid, 7-methylguanine, oleic acid and whale acid. The marker can be used for accurately distinguishing patients with generalized pustular psoriasis from healthy people.

The present application relates to the technical field of pest control, and further provides a method for extracting and identifying locust sex pheromone, which comprises the following steps: extracting locust volatile matter, and identifying the main components of the volatile matter as (Z)-2-pentene-1-ol, benzaldehyde, 2-ethyl-1-hexanol, 3-ethyl-benzaldehyde, 2-hexyl-1-dodecanol, 2-methoxyphenol, 4-ethyl-acetophenone, butyl benzoate, phenol, 2-ethyl-4,5-dimethylphenol, dimethyl phthalate, 2,4-di-tert-butylphenol, methyl hexanoate, isooctyl phthalate and dibutyl phthalate. Experiments show that dibutyl phthalate (DBP) as locust sex pheromone has a good attraction to male locusts, and can be applied to the biological control of locusts. The present application provides a new method for the biological control of locusts, and has a wide application prospect.

The application belongs to the technical field of asphalt materials, and discloses a high-tack asphalt additive, a preparation method and use thereof, and high-tack asphalt. The high-tack asphalt additive comprises the following components in parts by mass: thermoplastic elastomer 30-50 parts, toughening resin 20-40 parts, alcohol solvent 40-60 parts, polyethylene wax 10-20 parts, and polymerization inhibitor 1-2 parts. The alcohol solvent is one or both of decanol and dodecanol. The alcohol solvent in the high-tack asphalt additive can dissolve the thermoplastic elastomer and the toughening resin well, so that the mixture is very uniform, thereby reducing the softening point and melting point of the resin mixture, and the additive has the characteristics of low melting point, rapid melting and stable performance. The modification of asphalt can be completed by adding the additive in the asphalt mixture mixing process. Meanwhile, the synergistic effect between the components significantly increases the comprehensive performance of the modified asphalt.

The invention provides a preparation method for synthesizing fatty acid by oxidizing higher alcohol, which is mainly technically characterized in that the higher alcohol is RCH2OH (C12-C18, octadecanol, hexadecanol and dodecanol), 4 tons of higher alcohol is used in each tower, pure oxygen is used, and the flow rate is 0.04 m / (h.kg); the catalyst is Pd / C nano powder (such as 5% Pd / C, and the dosage is 20kg / 4 tons of higher alcohol). The reaction general formula is RCH2OH + O2-RCOOH (synthetic fatty acid). The method has the advantage that the yield of pure oxygen supply is higher than that of air direct oxygen supply. The oxygen concentration is improved, air recycling is achieved, and the rate and efficiency of the oxidation reaction are directly determined through oxygen concentration adjustment and temperature control. And the method can be widely applied to the fields of industry, food and feed, medicine and cosmetics, new energy, environmental protection and the like.

A use of a higher fatty alcohol in preparation of a fungistatic and fungicidal formulation, a use of a higher fatty alcohol in preparation of a formulation for controlling diseases caused by plant pathogenic fungi, a use of a higher fatty alcohol in preparation of an oomycetostatic and oomyceticidal formulation, and a use of a higher fatty alcohol in preparation of a formulation for controlling diseases caused by plant pathogenic oomycetes, wherein the higher fatty alcohol includes one or a mixture of n-decanol and n-dodecanol.