21results about How to "High industrial value" patented technology

The invention discloses an atmosphere post-processing method of a perovskite thin film and a perovskite solar cell, and belongs to the technical field of solar cells. The atmosphere post-processing method of the perovskite thin film comprises the following steps: S1, preparing a perovskite precursor solution into a perovskite precursor thin film, and carrying out heat treatment on the perovskite precursor thin film to form a perovskite thin film; s2, placing the perovskite thin film in a constant-temperature and constant-humidity atmosphere condition for perovskite thin film recrystallization; and S3, cooling the recrystallized perovskite thin film in a dry environment to room temperature to prepare a perovskite layer. According to the perovskite thin film, due to the recrystallization and defect passivation effects assisted by the constant-temperature and constant-humidity atmosphere, the grain size of the perovskite thin film is increased, the crystallization quality is improved, the grain boundary of perovskite is reduced, the defect density is reduced, a perovskite layer which is uniform in coverage and smooth in surface can be prepared, and then the photoelectric performance of a battery is efficiently improved.

Provided in the present invention are an insulated gate bipolar transistor with a super junction structure, and a preparation method therefor. The transistor comprises a drift region of a first conduction type, an epitaxial layer, a plurality of trenches arranged at intervals, filling layers of a second conduction type, gate electrode structures, a body region, a body contact region, a source region, an isolation dielectric layer and a source electrode conductive layer, wherein the epitaxial layer is located on an upper surface of the drift region; the filling layers and the gate electrode structures are sequentially arranged in the trenches from bottom to top; each gate electrode structure comprises a gate conductive layer, and a gate dielectric layer, which is located on inner walls of the trench and an upper surface of the filling layer and wrap side walls and a bottom face of the gate conductive layer; the body contact region and the source region are located on an upper surface layer of the body region and are adjacent to an upper surface of the body region; the isolation dielectric layer is provided with a contact hole, which penetrates the isolation dielectric layer and exposes the source region and the body contact region; and the source electrode conductive layer fills the contact hole and covers the isolation dielectric layer. In the present invention, the filling layer is formed at the bottom of each trench so as to shield the overlapping area between the bottom of the trench and the drift region, thereby reducing gate electrode charges Qgc.

The invention provides a domestication method of a nicotine degrading strain, which is characterized by comprising the following steps: S1, providing a starting strain: acquiring a Sphingobacterium psychromonas strain or a flora containing the Sphingobacterium psychromonas strain, and preparing a bacterial solution; s2, strain domestication: inoculating the bacterial liquid into a domestication culture medium for domestication, gradually increasing the concentration of nicotine in the domestication culture medium in a gradient manner, gradually reducing the concentration of a yeast extract in a gradient manner, and domesticating for 2-20 generations to obtain a domesticated strain. The strain obtained by the method has the capability of efficiently degrading nicotine, can survive in high-concentration nicotine wastewater, can degrade organic matters in the wastewater, plays a dual role, and has a relatively high industrial value.

The invention discloses a method for preparing a tinib drug intermediate, which can be used for the synthesis of multiple drugs, including ensartinib, crizotinib, etc. The method comprises a transition metal salt / chiral phosphine ligand catalytic system, and an asymmetric hydrogenation reaction to achieve asymmetric synthesis of a chiral alcohol intermediate. The method of the invention has simple steps, simple operation, mild conditions, rapid reaction, low pollution, high efficiency, and provides a new method for the efficient and green asymmetric hydrogenation synthesis of drugs such as ensartinib and crizotinib, and has great industrial application value.

The invention belongs to but is not limited to the technical field of molding manufacturing, and discloses an intelligent stone molding manufacturing device and method based on three-dimensional scanning and a multi-level process. Through automatic and intelligent design, multifunctional operation units such as material proportioning, mixing, injection molding, curing, polishing, coloring and quality detection are integrated; the whole manufacturing process achieves high automation and accurate control, simulation molding with the appearance, hardness and specific gravity similar to those of real rocks and fossils can be rapidly and efficiently manufactured, and the simulation molding device is suitable for exhibition requirements of museum exhibition and education places. The intelligent stone molding manufacturing device integrates an advanced automatic and intelligent control system through efficient raw material conveying, mixing, injection molding, curing, polishing and coloring processes, and can quickly manufacture highly-simulated rock and fossil molding products. An intelligent detection system ensures the quality of finished products, and a waste recovery mechanism realizes environment-friendly manufacturing.

There are provided a metal member-polyarylene sulfide resin member complex (hereinafter referred to as the complex) superior in airtightness between the metal member and the polyarylene sulfide resin (hereinafter referred to as PAS resin) member and a production method therefor. The complex comprises a metal member and a PAS member combined together into a one-piece shaped article by injection molding and satisfies 1) and 2). 1) The arithmetic mean roughness Ra1, maximum height roughness Rz1 and root mean square height Rq1 of a surface of the metal member in a measurement according to JIS B 0601-2001 performed using an atomic force microscope set to a field of view range of 2 µm or a confocal laser scanning microscope (hereinafter referred to as the measurement) and the arithmetic mean roughness Ra2, maximum height roughness Rz2 and root mean square height Rq2 of a surface of the PAS resin member in the measurement satisfy |(Ra1-Ra2)| / (Ra1+Ra2)≤0.2, |(Rz1-Rz2)| / (Rz1+Rz2)≤0.2 and / or |(Rq1-Rq2)| / (Rq1+Rq2)≤0.2. 2) The PAS resin member contains a PAS resin and a modified ethylene copolymer.

The invention discloses a polymerizable compound containing a chromophoric group for a reverse wavelength dispersion phase difference film and a liquid crystal composition thereof. According to the compound, benzothiazole is used as a chromophoric nucleus, strong electron-withdrawing trifluoromethyl is introduced to a specific position, and a side chain is connected through a thioether bond, so that high reverse wavelength dispersity, extremely high solubility and excellent compatibility with a conventional positive dispersion monomer are synchronously realized. After a liquid crystal composition containing the compound is subjected to orientation coating and photopolymerization, a high-transparency reverse wavelength dispersion phase difference film which is extremely low in haze, uniform in orientation and small in shrinkage stress can be prepared, the contradiction between the optical performance of an existing material and the stability of a film forming process is thoroughly solved, and the high-transparency reverse wavelength dispersion phase difference film is suitable for high-end OLED and Mini / Micro-LED wide-color-gamut displays.

The application discloses a metal complex and a preparation method and application thereof. Specifically, the metal complex catalyst is prepared by complexing a chiral tetradentate ligand with a metal precursor, the catalyst can realize asymmetric hydrogenation of a ketone, and through comparison of different preparation catalyst processes, an easy-to-prepare and simple-to-operate method is determined, the metal complex catalyst prepared by the method is stable in property, has certain tolerance to water and oxygen, can greatly improve catalytic efficiency, is suitable for industrial production, has a wide substrate application range, and has important practical value and industrialization prospect.

This invention relates to the field of ore flotation technology, specifically a low-consumption, high-efficiency flotation reagent for high-calcium, fine-muddy fluorite ore, its application, and a flotation method. The flotation reagent includes a modifier, a compound depressant, a compound collector, and a frother. The modifier includes sodium carbonate; the compound depressant includes water glass, carboxymethyl starch, sodium hexametaphosphate, and sodium lignosulfonate; the compound collector includes oleic acid, oxidized paraffin soap, sodium dodecyl sulfonate, and benzoyl hydroxamic acid; and the frother includes pine oil. Through the complementary functions of the compound depressant and the compound collector, highly efficient selective inhibition of high-calcium gangue and highly selective collection of fluorite are achieved, effectively dispersing fine mud, reducing froth entrainment, and ultimately obtaining a fluorite concentrate with a stable grade ≥97.0%, meeting the quality requirements of metallurgical and acid-grade fluorite products. This reduces the negative impact of fine nuclei on flotation, stabilizes the fluorite recovery rate, and increases the fluorite recovery rate by 3-6%, achieving dual stability in grade and recovery rate.

The application belongs to the technical field of functional polymer materials, and particularly relates to an acid and alkali resistant polytetrafluoroethylene composite material and a preparation method and application thereof, wherein the polytetrafluoroethylene composite material comprises the following raw materials in parts by weight: PFA 89 parts, plasticizer 1-4.5 parts, coupling agent 0.5-2 parts, weathering agent 0.5 part and functional additive 4-9 parts; the functional additive prepared from flake graphite, polyamide acid and PFPE-DMA is uniformly coated on the surface of the PFA and the like in the form of a polar dispersion liquid, can play a role of filling structure and thermal self-polymerization in the PFA melt extrusion molding process, construct a rigid-flexible polymer anti-permeation acid and alkali resistant network, and is suitable for manufacturing complex corrosion prevention parts under extreme working conditions.

The method for preparing tetrahydropyrrole by catalyzing tetrahydrofuran amination through rare earth metal ion doped gamma-aluminum oxide comprises the following steps: S1, adding gamma-aluminum oxide into a rare earth chloride aqueous solution, fully mixing, and soaking at 80 DEG C for 5-10 hours; removing moisture, washing the gamma-aluminum oxide with deionized water, and roasting to obtain the rare earth metal ion doped gamma-aluminum oxide catalyst. And S2, loading the catalyst obtained in the step S1 into a fixed bed reactor, heating to 250-450 DEG C, and continuously introducing tetrahydrofuran and ammonia gas to obtain tetrahydropyrrole. The catalyst disclosed by the invention has relatively high mechanical strength and catalytic activity, and the yield and selectivity of tetrahydropyrrole are relatively high; in-situ activation and regeneration can be carried out, the use cost is low, and the industrial value is very high.

The invention relates to a processing method for adjusting the yield of ethylene and propylene in the catalytic cracking process of n-butane, which comprises the following steps: S1, providing a dehydrogenation performance catalyst and a cracking performance catalyst, coupling the two catalysts to obtain a composite catalyst, mixing the composite catalyst and quartz sand, and filling the mixture into a reactor for pretreatment; and S2, providing a mixed feed gas flow of n-butane and N2, and under reaction conditions, contacting the mixed feed gas flow with the composite catalyst in the reactor to carry out catalytic cracking reaction. According to the invention, by optimizing a coupling mode between different catalytic activities of the catalysts, an integration mode of optimally combining an upper-layer dehydrogenation performance catalyst and a lower-layer cracking performance catalyst is constructed, so that the catalytic performance of cascade reaction is improved, and n-butane is firstly subjected to dehydrogenation reaction on the dehydrogenation performance catalyst to generate butene; butene is further diffused to the surface of the cracking performance catalyst to generate cracking performance, so that the cooperation of active sites and acidic sites is realized.

The invention discloses a catalyst for preparing C4 hydrocarbon from synthesis gas and a preparation method of the catalyst, and relates to the field of heterogeneous catalysis. The catalyst provided by the invention comprises an active component, a first metal additive, a second metal additive and a carrier, wherein the active component exists in a pore channel and on the outer surface of the carrier in a cluster form. The invention also provides at least three preparation methods of the catalyst, and provides application and application conditions of the catalyst in preparation of C4 hydrocarbon from synthesis gas. The catalyst is prepared through an in-situ packaging synthesis method, the carrier in the catalyst has a specific pore channel structure easy to diffuse and shape-selective catalytic characteristics, composite metal oxide clusters can be effectively limited, migration and agglomeration of the composite metal oxide clusters can be inhibited, and the selectivity of the packaging structure catalyst to low-carbon hydrocarbons, especially C4 hydrocarbons is improved; in addition, the stability of the packaging structure catalyst at high temperature can be improved, and the packaging structure catalyst has important industrial application potential.

The utility model relates to a continuous efficient reaction device for glycol ketal or acetal, and relates to the field of fine chemical production, the continuous efficient reaction device for glycol ketal or acetal comprises a condensation tower, an oil-water separator and a rectifying tower, the condensation tower is filled with a catalyst; the oil-water separator is communicated to the output end of the condensation tower and is provided with a first discharge hole for outputting a water phase; the rectifying tower is communicated to the first discharge hole of the oil-water separator, and the rectifying tower is provided with a second discharge hole for outputting dihydric alcohol and a third discharge hole for outputting water; the third discharge hole is communicated to the output end of the condensation tower and is used for supplementing raw materials to the condensation tower. The dihydric alcohol separated after water is removed through rectification can be used as a raw material to be re-put into the condensation tower to be subjected to condensation reaction with ketone or aldehyde, and the method has the characteristics of continuous process, low investment and capability of promoting ketal or aldolization reaction without carrying water through an entrainer, and has relatively high industrial value.

The invention belongs to the technical field of epoxy resin materials, and particularly relates to a P / N / S type flame retardant, a synthesis method and application of the P / N / S type flame retardant in epoxy resin. 2-aminobenzothiazole and phenylphosphonic acid react in an alcohol solvent system under the heating condition, white crystals are separated out after cooling, and the novel flame retardant is synthesized. In the chemical structural formula of the flame retardant, 2-aminobenzothiazole and phenylphosphonic acid are combined by electrostatic attraction to form an ionic compound. The flame retardant is directly mixed with a bisphenol A diglycidyl ether monomer and is used for preparing an epoxy resin material. The synthesized novel flame retardant is high in flame retardant efficiency, when the adding amount is 5 wt%, the oxygen index of epoxy resin cured products can be increased to 36.4%, and vertical combustion passes the UL-94V-0 level. More importantly, the mechanical strength of the EP material is 1.7 times higher than that of pure EP.

The invention provides a synthetic method and application of a disperse dye intermediate, and relates to the technical field of dyes. According to the disperse dye intermediate synthesis method, m-aminoacetanilide and chloroethane are subjected to an alkylation reaction, filtrate is an ammonium chloride solution after an alkylation product is crystallized, ammonium chloride as a byproduct is concentrated after decoloration, and the step is applied after a water phase is condensed; the layered water phase is ammonium sulfate and an ammonium acetate solution, decoloring and concentrating to obtain a byproduct ammonium fertilizer, and applying the step after the water phase is condensed. The obtained salt crystals are sodium chloride and a small amount of sodium carbonate and sodium bicarbonate salt crystals which are not completely reacted, the salt crystals are dissolved with water and neutralized into a sodium chloride solution with hydrochloric acid, a byproduct sodium chloride is concentrated after decoloration, and the step is applied after a water phase is condensed. And recycling the solvent by distillation, and applying the raw materials to the step. The method has the advantages of mild reaction conditions, low equipment requirements and high process safety; product conversion rate is high, and raw material cost is low; three wastes are easy to treat, environment-friendly treatment cost is low, and pollution is small.

The invention discloses a method for continuously synthesizing 3-methyl-1-phenyl-1,2,4-triazole-5-ketone metal salt, the method uses a compound of formula 1 as a raw material, forms a salt with a metal carbonate in water, obtains a compound of formula 2, the compound of formula 2 and hydrogen peroxide are subjected to an oxidation reaction in a microchannel reactor to synthesize a compound of formula 3, after the reaction is completed, the water is removed by negative pressure, and the product is obtained by drying to a moisture content of <0.1%. The method of the present invention uses water as a single solvent, is easy to recycle, and is simple to apply. The raw material is more soluble in water after being formed into salt, increases contact with hydrogen peroxide, greatly improves the reaction rate, and hydrogen peroxide is less in excess, suitable for industrial production, and uses a microchannel reactor as a reaction device, and can be directly seamlessly amplified for production, the method has low production cost, simple process, no three wastes, and has a high industrial value.

The invention relates to a synthesis method of an edoxaban intermediate, which comprises the following steps: by taking N-methyl-4-piperidone as a raw material, carrying out halogenation reaction and thioformamide cyclization, and then carrying out Friedel-Crafts acylation and hydrolysis reaction to synthesize 4, 5, 6, 7-tetrahydro-5-methylthiazolo [5, 4-c] pyridine-2-formic acid hydrochloride. In the reaction process, thioformamide is used for cyclization, so that the existing dangerous diazo reaction is omitted, and the process operation is safe; meanwhile, the diazo reaction is omitted, a large amount of alkali is not needed for adjusting the pH value in the post-treatment process to generate a large amount of high-salinity wastewater, the post-treatment steps are simple, and the burden on the environment is reduced; the method disclosed by the invention is low in reaction cost, high in product purity and yield and relatively high in industrial value.

The invention belongs to the technical field of carbon materials, and particularly relates to an aperture-adjustable graded porous carbon material as well as a preparation method and application thereof. Tripotassium ethylenediaminetetraacetate and sodium phytate are blended and dried and then subjected to two-step programmed heating calcination, and then the nitrogen and phosphorus co-doped graded porous carbon material is obtained through the processes of acid pickling, water washing and vacuum drying. The carbon material prepared by the method has a hierarchical porous structure and is doped with abundant heteroatoms, the specific surface area can be up to 2015.4 m < 2 > / g, and the total pore volume is 1.64 m < 2 > / g. The graded porous carbon material is wide in application, can be applied to the field of devices such as supercapacitors and zinc ion capacitors, can achieve high electrochemical performance as an electrode material, and can remarkably solve the problem that the electrochemical performance of the material is poor.

The application relates to the technical field of aluminum alloy materials, and specifically discloses a new energy battery package shell aluminum-silicon binary alloy and a preparation method thereof, which comprises the following steps: double-component independent precise smelting, smelt purification technology, smelt degassing and standing, high-low temperature double smelt synchronous diffusion mixing, low superheat laminar flow stable-pressure pouring, liquid nitrogen cooling and natural aging, so that the technical problems of large deformation, many defects and poor air tightness of a power battery shell are solved. The alloy is composed of aluminum and silicon and does not contain modification elements such as copper, magnesium, zirconium, titanium, rare earth and strontium, and has simple formula and strong recyclability; the method can refine the crystal grains; the residual stress of the aluminum alloy is greatly reduced, the air holes and shrinkage holes are eliminated, the size stability and sealing performance are improved, and the alloy is suitable for the harsh working conditions of long-term high-low temperature alternation and vehicle vibration of a new energy power battery.

The invention discloses a synthesis method of N-cyclohexylthiophthalimide, which comprises the following steps: firstly, carrying out nucleophilic addition reaction on cyclohexene and hydrogen sulfide gas to obtain cyclohexyl mercaptan; then further oxidizing the obtained cyclohexyl mercaptan to obtain cyclohexyl disulfide; reacting the obtained cyclohexyl disulfide with chlorine in an organic solvent to obtain cyclohexyl sulfenyl chloride; and finally, the cyclohexyl sulfenyl chloride and the phthalimide sodium are subjected to a reaction, and the N-cyclohexyl thio-phthalimide is synthesized. The synthesis method is easy to operate, low in energy consumption and small in investment, continuous production can be achieved, compared with the prior art, a large amount of waste water and waste residues cannot be generated, and industrial application and popularization are facilitated. Therefore, the method has a wide application prospect.