34results about How to "Good prospects for industrial production" patented technology

The invention provides a preparation method for a biomass charcoal adsorbent loaded with chitosan magnetic nanoparticles. The preparation method comprises the following steps: preparing biomass charcoal, preparing a chitosan-acetic acid solution, preparing an iron solution and preparing biomass charcoal loaded with the chitosan magnetic nanoparticles. The invention further provides the biomass charcoal adsorbent loaded with the chitosan magnetic nanoparticles. According to the adsorbent, the biomass charcoal is used as a base material and the surface of the adsorbent is loaded with the chitosan magnetic nanoparticles. The adsorbent prepared through the preparation method can adsorb heavy metal, dye and partial anions, and has the advantages of high adsorption capacity, strong magnetism, stable property and high mechanical performance.

The invention discloses a high-speed centrifugal spinning device for producing nanofiber yarn. The high-speed centrifugal spinning device is characterized by comprising a hollow rotating centrifugal column, a rotating cylinder collector, a roller, a winding unit and a transmission gear; a plurality of spray nozzles are arranged in the outer wall of the rotating centrifugal column, and the spray nozzles are communicated with a central cavity of the rotating centrifugal column through radial channels in the rotating centrifugal column; the rotating cylinder collector is located on the outer periphery of the rotating centrifugal column; the roller is located on the upper side of the rotating cylinder collector; the winding unit is located at the rear end of the roller, and the transmission gear drives the winding unit to rotate. The invention further discloses a production method of the nanofiber yarn. According to the advantages of the high-speed centrifugal spinning device in producing the nanofiber yarn, and spinning of the collector is combined technically, the nanofiber yarn which is controllable and highly oriented is obtained; the yield is greatly increased as compared with that of the nanofiber yarn obtained by other production methods, spinning quality is greatly improved, mechanical property of the nanofiber yarn is enhanced, machining reproducibility is good, and good industrial production prospect is achieved.

The invention discloses a titanium oxide porous optical catalyst and making method, which is made of nanometer titanium oxide with 0.14%-2.0% nitrogen and 1.3-19.7% phosphor to synthesize titanium based primer to sinter at 350-550 deg.c.

The invention relates to a tin-doped indium oxide (ITO) / gallium oxide (Ga2O3) double-layer structure deep-ultraviolet transparent conductive film and a preparation method thereof, and belongs to the technical field of electronic materials. The preparation method comprises the following steps: ultraviolet optical quartz glass is used as the substrate, and radio-frequency magnetron sputtering is carried out on the Ga2O3 ceramic target to prepare a Ga2O3 layer the thickness of which is 30-60 nm; and direct-current magnetron sputtering is carried out on an ITO target to prepare an ITO layer the thickness of which is 15-29 nm. The pressure intensity of argon gas for sputtering is 0.2-2 Pa, the power for radio-frequency sputtering is 50-100 W, the substrate temperature is 200-300 DEG C, the current for direct-current sputtering is 80-150 mA, and the voltage for direct-current sputtering is 200-400 V. The prepared film has the advantages of low resistivity, high transmittivity within the range of visible light, ultraviolet light and deep-ultraviolet light, and other favorable photoelectric properties. The film otained by the method of the invention has wide application prospects in the fields of ultraviolet photoelectric devices and the like.

The invention relates to a preparing method of a nanometer calcium hydroxide powder material for fixing ancient murals. The preparing method comprises the steps of firstly dissolving calcium chlorideinto water, and afterwards, adding dimethyl formamide; mixing a calcium chloride aqueous solution with a sodium hydroxide aqueous solution to prepare nanometer calcium hydroxide. By means of the preparing method, heating is not needed, preparation is conducted at the normal temperature, and synthesized nanometer calcium hydroxide has high stability, and does not precipitate for 3 months in ethyl alcohol. The synthesis process is very simple, the time is saved, and it takes less than 1 h in the whole process. Besides, the method is low in synthesis cost, overcomes shortcomings of a current method of synthesizing nanometer calcium hydroxide, and has a very good industrial production prospect. As is shown by mural reinforcing experiments, the material is suitable for reinforcing the murals ofhumid burial chambers, and particularly well protects mural efflorescent and flaking of the murals. Compared with the prior art, the preparing process of the nanometer calcium hydroxide material is very simple, the time is saved, the preparation is controllable, and the cost is low. Besides, heating is not needed, preparation is conducted at the normal temperature, and energy consumption is low.

The invention relates to a preparation method for a plurality of photoinitiators containing phosphorus. The preparation method comprises the steps of taking 2,4,6-trimethylphenyl halogen methane as a raw material, allowing 2,4,6-trimethylphenyl halogen methane to react with sodium phosphine to be oxidized, obtaining a phosphine oxide intermediate, finally, executing a key reaction step, namely the reaction that alpha-carbon is oxidized into ketone, and obtaining a high-yield target oxidation product through oxidation with an oxidizer under the action of a catalyst. The raw material required by the method is low in price and easy to obtain; process equipment is simple; and the method is easy to operate and low in cost.

The invention discloses a biochar-supported magnetic substance composite adsorption material, and a preparation method and application method thereof, and belongs to the field of water treatment. The biochar-supported magnetic substance composite adsorption material is prepared by the following steps: mixing and uniformly grinding a biomass, a cobalt salt and a nickel salt to obtain a mixture, calcining the obtained mixture under the protection of inert gas, and performing cooling. The preparation scheme requires few steps, is environment-friendly, and has broad industrial production prospect, and the biochar-supported magnetic substance composite adsorption material prepared by the preparation method has a good adsorption effect.

The invention relates to a synthesis method of a key sofosbuvir intermediate shown as a formula (I). The synthesis method comprises the following steps: with a compound 3,5-dibenzoyl-2-deoxy-2-fluoro-2methyl-D-ribose-gamma-lactone as a raw material, selectively reducing by using modified passivated red aluminum to produce a compound [(2R,3R,4R)-3-(benzoyloxy)-4-fluoro-5-hydroxy-4-methyltetrahydrofuran-2-yl] methyl benzoate, chlorinating the compound [(2R,3R,4R)-3-(benzoyloxy)-4-fluoro-5-hydroxy-4-methyltetrahydrofuran-2-yl] methyl benzoate, performing condensation on the compound [(2R,3R,4R)-3-(benzoyloxy)-4-fluoro-5-hydroxy-4-methyltetrahydrofuran-2-yl] methyl benzoate and N-benzoyl-O-(trimethylsilyl)cytosine to produce the sofosbuvir intermediate (2'R)-N-benzoyl-2'-deoxy-2'-fluoro-2'-methylcytidine-3',5'-dibenzoate. By the synthesis method, the compound [(2R,3R,4R)-3-(benzoyloxy)-4-fluoro-5-hydroxy-4-methyltetrahydrofuran-2-yl] methyl benzoate is highly selectively prepared by replacing commonly used trifluoroethanol with a passivating agent morpholine; in the reaction process, byproducts are reduced, so that progression of a subsequent reaction is facilitated; and the synthesismethod has a huge industrial production prospect.

The invention discloses a preparation technology for increasing the effective photosensitive area of a photoelectric material or a photoelectric element. The principle of the preparation technology comprises the following steps of: controlling the quantity of exposed light beams, light beam polarization and an incident angle to obtain a micro-nano structure with different periods and characteristic sizes by laser interference photoetching; and increasing the real effective area of a P-N junction within unit area on the structure by semiconductor doping. Because the photoelectric material or the photoelectric element is manufactured by using the technology and a method, the effective photosensitive area can be increased on a large scale within the unit area, and then light absorption rate is improved; the application prospect of the technology is wider due to the properties of self cleaning and anti-reflection of the micro-nano structure; the technology is particularly applied to the field of solar batteries; and conversion efficiency is improved on a large scale.

The present invention relates to an N-substituted-4-piperidone compound and a synthesis method thereof. In the general formula of the compound, R is alkyl with a carbon number of 1-8, phenyl or benzyl, and other groups. Characteristics of the method of the present invention are: selecting appropriate primary amine and 1,5-dichloro-3-pentanone, and carrying out a ring closing reaction to prepare N-substituted-4-piperidone, wherein the selected 1,5-dichloro-3-pentanone can directly be purchased or synthesized by a two-step synthesis method, and the two-step synthesis method comprises: (1) adding thionyl chloride to acrylic acid, and carrying out an addition reaction and acyl chlorination under catalysis of N,N-dimethyl formamide to obtain 3-chloropropionyl chloride; (2) introducing ethylene gas to a dichloromethane solution of 3-chloropropionyl chloride, and carrying out a Friedel-Crafts reaction to obtain the 1,5-dichloro-3-pentanone. The method of the present invention has characteristics of wide raw material source, mild reaction conditions, simple operation, low production costs, high yield, and good industrial production prospect.

The invention is a novel method for synthesizing diisocyanate for medical polyurethane. Isophorone diamine is synthesized in one step with a fixed bed reactor by using methanol and isophorone diamineas raw materials. The method obviously shortens the conventional process flow, is simple in operation, mild in condition and high in yield, and has a good application prospect.

The invention belongs to a synthesis method of an ester type compound in organic chemistry and in particular relates to a method for synthesizing dialkyl carbonate from biomass-based furfural. The method comprises the following steps: firstly, taking agricultural and forest wastes as initial raw materials, carrying out acid hydrolysis and dehydration cyclization reaction and purifying to obtain furfural; carrying out oxidization reaction on the biomass-based furfural under the action of hydrogen peroxide and a catalyst to synthesize maleic anhydride; carrying out epoxidation reaction on the synthesized maleic anhydride under the action of the catalyst and the hydrogen peroxide to synthesize epoxysuccinic acid; carrying out cycloaddition reaction on the epoxysuccinic acid and CO2 to prepareannular carbonate; finally, carrying out ester exchange reaction on the synthesized annular carbonate and monohydric alcohol or polyhydric alcohol to prepare the dialkyl carbonate. According to the method provided by the invention, the cheap agricultural and forest wastes are used as the raw materials to produce the dialkyl carbonate; meanwhile, tartaric acid with high additional value is also produced; the production cost is saved and the environment pollution is reduced; a novel way is also provided for industrial production of the dialkyl carbonate and the tartaric acid and efficient and comprehensive utilization of the agricultural and forest wastes; the synthesis method has remarkable economic benefits and social benefits.

The invention relates to a preparation method for a plurality of photoinitiators containing phosphorus. The preparation method comprises the steps of taking 2,4,6-trimethylphenyl halogen methane as a raw material, allowing 2,4,6-trimethylphenyl halogen methane to react with sodium phosphine to be oxidized, obtaining a phosphine oxide intermediate, finally, executing a key reaction step, namely the reaction that alpha-carbon is oxidized into ketone, and obtaining a high-yield target oxidation product through oxidation with an oxidizer under the action of a catalyst. The raw material required by the method is low in price and easy to obtain; process equipment is simple; and the method is easy to operate and low in cost.

The invention discloses cellulose-degrading biocontrol bacillus and application and a preparation thereof. The preservation number of the cellulose-degrading biocontrol bacillus in China General Microbiological Culture Collection Center (CGMCC) is CGMCC No:19895. The strain can efficiently and quickly degrade cellulose in straws and shorten the decomposition period of the straws; and the strain can antagonize pathogenic bacteria, and after the strain is prepared into a microbial agent, crops can be protected from being invaded by the pathogenic bacteria.

The present invention relates to a kind of synthetic method of sofosbuvir intermediate shown in formula (I): the present invention uses compound (2S,3R)-ethyl-3-((R)-2,2-dimethyl Base-1,3-dioxolane-4-yl)-2,3-dihydroxy-2-methyl propionate (Ⅱ) as starting material, through thionyl chloride cyclization to form compound (Ⅲ ), then compound (Ⅲ) was oxidized by hydrogen peroxide / sodium tungstate to obtain compound (Ⅳ), and compound (Ⅳ) was fluorinated, hydrolyzed and benzoylated to synthesize sofosbuvir intermediate 3,5-di Benzoyl-2-deoxy-2-fluoro-2methyl-D-ribose-γ-lactone (I), the sofosbuvir intermediate synthesized by the present invention is environmentally friendly and economical, and has huge industrial production prospects.

The invention belongs to the technical field of macromolecular waterborne polyurethane, the method comprises the following steps: 1, mixing micromolecular siloxane, deionized water, absolute ethyl alcohol and acid, and reacting under the protection of nitrogen to obtain a product I, namely hyperbranched organic silicon with amino; 2, enabling diisocyanate, dihydric alcohol and a catalyst to react under inert atmosphere protection; then, adding a hydrophilic chain extender, a cross-linking agent, a neutralizer and an organic solvent for continuous reaction to obtain primary waterborne polyurethane; putting the primary waterborne polyurethane and an amine chain extender into water, uniformly mixing, and emulsifying to obtain a primary waterborne polyurethane prepolymer emulsion; and 3, mixing the product I with the primary waterborne polyurethane prepolymer emulsion for reaction, and removing the organic solvent to obtain the hyperbranched organic amino silicon modified waterborne polyurethane emulsion. The prepared modified waterborne polyurethane emulsion has excellent mechanical properties, good water resistance, low water absorption, good temperature change resistance, salt fog resistance and the like.

The invention discloses a flame-retardant multilayer board which is formed by compounding at least three layers of single-layer boards into a whole through a flame-retardant adhesive, the thickness of each single-layer board is 3-5mm, and the single-layer boards are pretreated, the flame-retardant adhesive is prepared from the following raw materials in parts by weight: 3-5 parts of aluminum hydroxide, 5-8 parts of ammonium dihydrogen phosphate, 4-8 parts of calcium borate, 4-8 parts of zirconium oxide, 5-10 parts of expansible graphite, 3-7 parts of a silane coupling agent, 15-25 parts of methyl methacrylate, 40-60 parts of epoxy resin, 5-15 parts of acrylic acid and 8-12 parts of acrylamide. According to the preparation method of the flame-retardant multilayer board, the veneer is pretreated, then subjected to vacuum impregnation, then subjected to gluing and hot pressing, and finally subjected to edge cutting and sanding, the preparation process is simple and easy to implement, and the adopted adhesive is environmentally friendly and nontoxic and has high bonding performance, flame retardance and corrosion resistance; and the mechanical property of the wood can be improved, and the good industrial production prospect is achieved.

The invention relates to an AC33 / nano calcium hydroxide containing organic inorganic composite material for reinforcing ancient murals and a reinforcing method. AC33 and nano calcium hydroxide are dissolved in an ethyl acetate solution. The preparation method is very simple and time-saving. The prepared mixed solution is very stable and will not precipitate for half a year, and the cost is low. The result of a mural reinforcing test shows that the composite material can play a mural reinforcing effect within 12 hours, nano calcium hydroxide is carbonized into calcium carbonate, a film formed by AC33 is broken down, and the influence of water steam exchange between murals and the environment is small. The shortages of using AC33 or nano calcium hydroxide to reinforcing a mural are overcome.Compared with the reinforcing effect of AC33 or nano calcium hydroxide, the reinforcing strength is improved by using AC33 and nano calcium hydroxide together. The composite material has a great industrial production prospect and can be used to reinforce other cultural relics such as stone relics, and the like.

The invention relates to a tin-doped indium oxide (ITO) / gallium oxide (Ga2O3) double-layer structure deep-ultraviolet transparent conductive film and a preparation method thereof, and belongs to the technical field of electronic materials. The preparation method comprises the following steps: ultraviolet optical quartz glass is used as the substrate, and radio-frequency magnetron sputtering is carried out on the Ga2O3 ceramic target to prepare a Ga2O3 layer the thickness of which is 30-60 nm; and direct-current magnetron sputtering is carried out on an ITO target to prepare an ITO layer the thickness of which is 15-29 nm. The pressure intensity of argon gas for sputtering is 0.2-2 Pa, the power for radio-frequency sputtering is 50-100 W, the substrate temperature is 200-300 DEG C, the current for direct-current sputtering is 80-150 mA, and the voltage for direct-current sputtering is 200-400 V. The prepared film has the advantages of low resistivity, high transmittivity within the range of visible light, ultraviolet light and deep-ultraviolet light, and other favorable photoelectric properties. The film otained by the method of the invention has wide application prospects in the fields of ultraviolet photoelectric devices and the like.

The invention relates to an organogel for removing polyacrylic resin on the surface of murals based on nano-calcium hydroxide and a preparation method thereof. Nano-calcium hydroxide and epoxy resin are added into an ethyl acetate solution and stirred for 12-24 hours to form a polyacrylic resin. Acrylic cleaning gel. The preparation method is extremely simple, saves time, does not require heating and has low cost. In the preparation process, nano-calcium hydroxide reacts with ethyl acetate to generate calcium acetate as a cross-linking agent to promote gel formation. Calcium acetate is not only non-toxic, but also a food preservative, which greatly improves the safety of the gel. The experiment of removing polyacrylic resin polymer on the surface of mural shows that the removal rate can reach more than 95%. In addition, according to the amount of polyacrylic resin on the surface of the mural, the percentage of ethyl acetate can be flexibly adjusted from 70%-85% to obtain the best cleaning effect. The gel has excellent industrial production prospects, and can be extended to the cleaning of high molecular polymers on the surfaces of other cultural relics such as stone and paper cultural relics.

The invention relates to the field of medicine synthesis, and discloses a safe preparation method for 1-(3-methyl-1-phenyl-1H-pyrazol-5-yl)piperazine. The method disclosed by the invention comprises the steps: allowing 5-chloro-3-methyl-1-phenylpyrazol-4-formaldehyde to react with N-acylpiperazine under conditions of inorganic alkali such as anhydrous potassium carbonotate and anhydrous sodium carbonotate, to obtain an intermediate product with a higher yield; and allowing the intermediate product to react in the hydrochloric acid solution of n-butyl alcohol, to simutaneously remove formacyl and acyl protection group of piperazine, thereby obtaining a target product. The method has the advantages of mild conditions, higher yield, simple post-treatment, avoidance of unsafe reagents, and good industrial production prospect.

The invention relates to a preparing method of a nanometer calcium hydroxide powder material for fixing ancient murals. The preparing method comprises the steps of firstly dissolving calcium chlorideinto water, and afterwards, adding dimethyl formamide; mixing a calcium chloride aqueous solution with a sodium hydroxide aqueous solution to prepare nanometer calcium hydroxide. By means of the preparing method, heating is not needed, preparation is conducted at the normal temperature, and synthesized nanometer calcium hydroxide has high stability, and does not precipitate for 3 months in ethyl alcohol. The synthesis process is very simple, the time is saved, and it takes less than 1 h in the whole process. Besides, the method is low in synthesis cost, overcomes shortcomings of a current method of synthesizing nanometer calcium hydroxide, and has a very good industrial production prospect. As is shown by mural reinforcing experiments, the material is suitable for reinforcing the murals ofhumid burial chambers, and particularly well protects mural efflorescent and flaking of the murals. Compared with the prior art, the preparing process of the nanometer calcium hydroxide material is very simple, the time is saved, the preparation is controllable, and the cost is low. Besides, heating is not needed, preparation is conducted at the normal temperature, and energy consumption is low.

The invention relates to an organic gel with a nondestructive residue detection function for removing organic polymers on the surface of a mural and preparation and use methods thereof. Graphene quantum dots, nano calcium hydroxide and epoxy resin are added into an ethyl acetate solution to prepare the organic polymer cleaning gel. The graphene quantum dots can emit green fluorescence under ultraviolet irradiation, so that after the gel is applied to removal of polyacrylic resin, polyvinyl butyral and polyvinyl acetate on the surface of a mural, an ultraviolet lamp is utilized to irradiate the surface of the mural, and whether the gel is left on the surface of the mural or not is judged by observing whether there is green fluorescence or not. According to the method, nondestructive detection is achieved, damage to a mural caused by destructive detection of an existing infrared spectroscopy method is overcome, weak green fluorescence can be emitted from the surface of the mural when the mural is irradiated by ultraviolet light after the organic matters on the surface of the mural are removed, and gel residues can be completely removed by simply wiping the mural with a cotton swab according to the light-emitting position. The gel has an excellent industrial production prospect.

The invention discloses a method for the synergistic catalysis of light / nickel to synthesize diarylamines. This method does not require the addition of external ligands and directly uses simple and cheap nickel salts as metal catalysts to synergistically catalyze the reaction between arylamines and brominated aromatic hydrocarbons with a photosensitizer. Cross-coupling. The advantages of this method are: 1) The amount of BODIPY organic photocatalyst is low, and it has better catalytic effect than the metal iridium and ruthenium photosensitizers reported in the literature; 2) The BODIPY organic photosensitizer is easy to synthesize; 3) The amount of nickel salt is small, No additional ligands are needed; 4) The reaction conditions are mild, and the yield of coupling products is mostly higher than 90%. The method of the invention does not require high-temperature and high-pressure equipment, has a small temperature change range, a simple experimental process, is easy to operate, and has high application value and industrial promotion potential.

The invention discloses an integrated heteropolyacid-modified polyaniline / titanium nitride core-shell nanowire array composite material and a preparation method and an application thereof. The material comprises a carbon substrate (1), titanium nitride nanowire arrays (2) and a heteropolyacid-modified polyaniline composite film (3), wherein the titanium nitride nanowire arrays (2) directly grow on the carbon substrate (1) and are uniformly and vertically arranged on the surface of the carbon substrate; the heteropolyacid-modified polyaniline composite film (3) completely coats the surfaces of the titanium nitride nanowire arrays (2); and a heteropolyacid in the heteropolyacid-modified polyaniline composite film (3) is uniformly embedded into polyaniline to form a composite film layer. The invention further provides a detailed preparation method of the integrated heteropolyacid-modified polyaniline / titanium nitride core-shell nanowire array composite material and an application of the integrated heteropolyacid-modified polyaniline / titanium nitride core-shell nanowire array composite material in the field of electrochemical energy storage. Compared with the prior art, the composite material has the advantages that the heteropolyacid is immobilized by using the polyaniline, so that the problem that the heteropolyacid is easily dissolved into a water solution and cannot be easily used for an electrode material is effectively solved; and meanwhile, the capacity property of the polyaniline is improved.

The invention discloses a nickel cobaltate / titanium nitride array electrode material, which has a three-dimensional ordered multi-level pore structure, and the open macropores provide more active sites and transport spaces for the adsorption and transport of electrolyte ions in electrode reactions. , high conductivity titanium nitride provides a fast electron transport channel for nickel cobaltate, which effectively solves the defects of electrode material electrolyte ions and electrons that are difficult to transport quickly, resulting in poor rate performance and low energy storage efficiency. The mesoporous structure of the pore wall effectively increases the specific surface area of ​​the material and provides more active sites for the reaction, thereby improving the electrochemical energy storage performance. And it can be directly used as a new energy storage electrode material, which has high practical value and industrial production potential; the preparation process of the electrode material is reliable and easy, and has a good industrial production prospect.

The invention discloses a strain of cellulose-degrading biocontrol bacillus and its application and preparation. Its preservation number in the General Microorganism Center (CGMCC) of China Microbiological Culture Collection Management Committee is CGMCC No: 19895. The bacterial strain can efficiently and rapidly degrade the cellulose in the straw, and shorten the straw decomposition cycle; the bacterial strain can antagonize pathogenic bacteria, and can prevent crops from being attacked by pathogenic bacteria after being prepared as a bacterial agent.

The invention relates to a high-stability methanol gasoline and a preparation method thereof. High stability methanol gasoline is prepared by mixing the following raw materials in volume percentage: 40%~80% of motor gasoline, 10%~50% of industrial methanol, 7%~15% of phase stabilizer, 0%~5 of vapor pressure regulator % or anti-corrosion and anti-swelling agent 0.05%~1%. The method is: under normal temperature and pressure, add industrial methanol in proportion to the blending tank containing motor gasoline; add phase stabilizer, vapor pressure regulator and anti-corrosion and anti-swelling agent in proportion; use pump to circulate, stir 10-20 minutes; after standing in the blending tank for 1-2 hours, pour into the storage tank for later use. The methanol gasoline prepared by the invention has high stability, strong power, low fuel consumption, high efficiency and cleanliness, and low preparation cost, can be directly used by motor vehicle engines, and has good industrial production prospects.