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

Preparation method for biomass charcoal adsorbent loaded with chitosan magnetic nanoparticles

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.
Owner:HOHAI UNIV

High-speed centrifugal spinning device for producing nanofiber yarn in one-step shaping and production method of nanofiber yarn

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.
Owner:JIANGNAN UNIV

Nitrogen-phosphor codoping titanium oxide multi-stage aperture photocatalysis material and method for making same

InactiveCN101011655AThe preparation process and equipment are simpleGood prospects for industrial productionPhysical/chemical process catalystsPhotocatalysisTitanium
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.
Owner:NANKAI UNIV

Double-layer structure deep-ultraviolet transparent conductive film and preparation method thereof

InactiveCN101841003AWith deep ultraviolet transparent optical propertiesImprove conductivitySolid-state devicesVacuum evaporation coatingIndiumRadio frequency magnetron sputtering
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.
Owner:LUDONG UNIVERSITY

Preparing method of nanometer calcium hydroxide powder material for fixing ancient murals

ActiveCN108083311AImprove stabilityThe synthesis process is simple and time-savingNanotechnologyPainting preservationCalcium hydroxideAlcohol
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.
Owner:NORTHWESTERN POLYTECHNICAL UNIV

Preparation method for photoinitiators containing phosphorus

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.
Owner:TIANJIN JIURI NEW MATERIALS CO LTD

Biochar-supported magnetic substance composite adsorption material, and preparation method and application method thereof

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.
Owner:HUANGHUAI UNIV +1

Synthesis method of key sofosbuvir intermediate

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.
Owner:JIANGSU COBEN PHARMA CO LTD

Preparation technology for increasing effective photosensitive area of photoelectric material

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.
Owner:CHANGCHUN UNIV OF SCI & TECH

Synthesis method for N-substituted-4-piperidone

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.
Owner:WENZHOU IND SCI RES INST

New method for synthesizing diisocyanate for medical polyurethane

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.
Owner:关爱丽 +1

Method for synthesizing dialkyl carbonate from biomass-based furfural

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.
Owner:QINGDAO INST OF BIOENERGY & BIOPROCESS TECH CHINESE ACADEMY OF SCI

Cellulose-degrading biocontrol bacillus and application and preparation thereof

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.
Owner:NORTHWEST A & F UNIV

Hyperbranched organic amino silicon post-chain-extension modified waterborne polyurethane and preparation method thereof

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.
Owner:山东圳谷新材料科技有限公司 +1

Flame-retardant multilayer board and preparation method thereof

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.
Owner:沭阳县牡丹木业有限公司

Double-layer structure deep-ultraviolet transparent conductive film and preparation method thereof

InactiveCN101841003BWith deep ultraviolet transparent optical propertiesImprove conductivitySolid-state devicesVacuum evaporation coatingIndiumRadio frequency magnetron sputtering
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.
Owner:LUDONG UNIVERSITY

A kind of organic gel for removing polyacrylic resin on mural surface based on nano calcium hydroxide and preparation method thereof

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.
Owner:RES & DEV INST OF NORTHWESTERN POLYTECHNICAL UNIV IN SHENZHEN +2

A preparation method of nanometer calcium hydroxide powder material used for reinforcement of ancient murals

ActiveCN108083311BImprove stabilityThe synthesis process is simple and time-savingNanotechnologyPainting preservationCalcium hydroxideAlcohol
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.
Owner:NORTHWESTERN POLYTECHNICAL UNIV

Organic gel with nondestructive residue detection function for removing organic polymers on surface of mural and preparation and use methods thereof

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.
Owner:XIAN TECHNOLOGICAL UNIV

Integrated heteropolyacid modified polyaniline/titanium nitride core-shell nanowire array composite material and its preparation method and application

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.
Owner:SOUTHEAST UNIV

High stability methanol gasoline and preparation method thereof

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.
Owner:RES INST OF SHAANXI YANCHANG PETROLEUM GRP
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