134results about How to "The reaction device is simple" patented technology

The invention relates to a titania porous micro tube optical catalyst modified by silver for degrading fenol in water and relative preparation. The inventive catalyst is TiO2 porous micro tube modified by silver with specific structure composed from direct deposit method, that using titanic chloride as titanium source, directly hydrolyzing and depositing, in the condition with some dispersers, to be filtered, washed, dried, baked and activated to obtain final TiO2 optical catalyst modified by silver. The inventive catalyst has specific structure, integral appearance, and uniform aperture, thereby improving the ability for degrading fenol, with high activity in optical catalysis, the ability for degrading fenol into water and carbon dioxide, and wide application.

The present invention discloses a polymerization ferric sulfate water treatment agent and a preparation method thereof. According to the present invention, H2O2 and FeSO4.7H2O are adopted, a molar ratio of the H2O2 to the FeSO4.7H2O is 1.1-2.0:2, and the H2O2 and Fe<2+> are subjected to an oxidation reaction to prepare the polymerization ferric sulfate water treatment agent so as to rapidly produce products meeting user requirements, wherein production is rapid, a reaction temperature is controlled no higher than 40 DEG C so as to ensure a H2O2 utilization rate and a Fe<2+> conversion rate, and raw material utilization rate can be more than 95%; and the method has characteristics of simple production process, simple reaction apparatus, easy operation, low raw material consumption, and low cost, and can be used for industrial production.

The invention discloses a catalyst for intermittent preparation of pure hydrogen using decahydronaphthalene as material and a method thereof. The catalyst contains nanometer metal and nanometer carbon fibre, wherein the nanometer metal is selected from Pt or alloy containing Pt. The method for preparing the pure hydrogen comprises a step (1) of mixing the decahydronaphthalene with dehydrogenation reaction catalyst and heating to a temperature of 100-350 DEG C for reaction to obtain hydrogen.

The invention relates to a skutterudite based thermoelectric material, a thermal protection coating for devices and a preparation method thereof. The skutterudite based thermoelectric material and the thermal protection coating for the devices comprise the following components: 20-80 weight parts of organosilane, 3-60 weight parts of silica sol, 3-55 weight parts of glass powder and 3-50 weight parts of water. The invention further provides the preparation method of the skutterudite based thermoelectric material and the thermal protection coating for the devices.

The invention discloses a microRNA trace detection method based on an exponential order non-enzymatic amplification and electrochemical luminescence principle. A non-enzymatic amplification and hybrid chain type reaction system is adopted, and the specific sequences of DNA hairpin probes H1, H2, H3 and H4 are designed based on a detection target microRNA sequence; when an amplification system contains to-be-detected microRNA, the subsequent hybrid chain type reaction process is triggered by virtue of an H1+H2 double-chain composite structure, and is finished by H3 and H4 together; and moreover, an amplification product is captured by virtue of streptavidin magnetic bead capture, and an electrochemical luminescence signal is generated and detected by virtue of an electrochemical detection system. According to the method, an enzyme is not involved in the whole process, the principle is simple, and the detection cost is low; and the method has the advantages of constant temperature amplification, high sensitivity, simple operation, simplicity in popularization and the like. The method is applied to nucleic acid detection and can be combined with a protein aptamer related technology to be used for protein detection.

The invention discloses a functionalized GO (graphene oxide) and RTV (room temperature vulcanization) silicone rubber nanocomposite and a preparation method thereof. The method comprises steps as follows: firstly, the surface of GO is grafted with maleimide siloxane, GO-PTESMI is obtained, then double bonds of maleimide on grafting chains in GO-PTESMI are subjected to a hydrosilation reaction with Si-H group terminated PDMS (polydimethylsiloxane) in a solution, and GO (functionalized GO) with surface linked with PDMS grafting chains containing imide groups is prepared; then the functionalized GO is dispersed in a dispersing agent uniformly, and the silicone rubber nanocomposite with different content of functionalized GO is prepared through solution blending. According to the invention, imide bonds and polysiloxane long chains are introduced to the surface of GO, so that interface interaction force and mechanical properties of the nanocompoiste can be improved simultaneously, and the RTV silicone rubber material with capacity of playing excellent performance of GO better is prepared.

The invention discloses a diazotization continuous tubular reactor which comprises liquid storage tanks, a tubular reactor, a diazotization salt separation storage tank and a circular cooling system, wherein all liquid storage tanks are connected with the tubular reactor through a mixer which can be used for sufficiently mixing all reaction materials and feeding the mixture into the tubular reactor; a flow controller is arranged between each liquid storage tank and the mixer; the mixer and the tubular reactor are in sealed connection; the circular cooling system comprises a quencher, a mediumstorage tank, a quencher nozzle and a recycling mechanism, wherein the quencher is used for connecting the outlet of the tubular reactor with the liquid inlet tube of the diazotization salt separation storage tank; the medium storage tank is used for storing a cooling medium; the quencher nozzle is used for quickly spraying the cooling medium into the quencher; the recycling mechanism is connected with the diazotization salt separation storage tank and used for recycling the cooling medium and cooling the recycled cooling medium; the recycling mechanism and the medium storage tank are connected; the cooling medium is low-temperature high-pressure CO2; and the top of the diazotization salt separation storage tank is provided with an exhaust port. The diazotization continuous tubular reactor disclosed by the invention has the advantages of high reaction yield, low energy consumption and strong generality.

The invention provides a water treatment method for removing trihalomethane in drinking water by utilizing UV (ultraviolet) / H2O2. The water treatment method comprises the following steps: introducing the drinking water into a reaction device, starting a magnetic stirrer in the reaction device, and adjusting the rotational speed of the magnetic stirrer to be 125-300 r / min; putting a UV lamp tube capable of stably emitting light into the reaction device, and arranging a quartz sleeve tube outside the UV lamp tube; adding H2O2 into the drinking water in the reaction device for treatment, wherein the additive amount of H2O2 is 5-30 mmol / L, the power of a UV lamp is 12-75 W, and the retention time is 20-60 minutes; removing trichloromethane, tribromethane, dibromochloromethane and bromodichloromethane contained in trihalomethane in the treated drinking water, wherein the removal rates of trichloromethane, tribromethane, dibromochloromethane and bromodichloromethane can reach 43.97%, 99.61%, 99.38% and 93.07% respectively. The water treatment method has the benefits that the method is capable of completely decomposing trihalomethane, free of secondary pollution, low in H2O2 consumption and low in energy consumption, has a certain removal effect on TOC (total organic carbon) and UV254 in the drinking water, and has a very good removal effect on trihalomethane.

The invention discloses a method for forming a ZnS / SnS / CuA core-shell structure composite powder through thermosynthesis of a normal pressure solvent. Reaction raw materials are dispersed in the solvent to form a raw material solution; and then the reaction raw material solution is added to a three-necked flask step by steps; and the thermosynthesis reaction of the normal pressure solvent is completed by heating in a magnetic stirring oil bath. The synthesis speed of the thermosynthesis reaction of the normal pressure solvent is increased through magnetic stirring; and the thermodynamic and dynamic conditions for generating a product are achieved through stirring while heating so that the target product ZnS / SnS / CuA core-shell structure composite powder is synthesized. The method provided by the invention has the advantages of low cost, simple reaction device, high reaction process controllability and the like, and is capable of controlling the whole reaction synthesis process quite flexibly, thereby forming specific structure and specific composition.

A preparation method for an inorganic powder material and application relate to a novel environmentally friendly material. The preparation method comprising carrying out the first grinding for oxides or / and oxide precursors; roasting; washing; drying; carrying out the second grinding to get the inorganic powder material. The oxides are selected at least three from CaO, MgO, SiO2, Fe3O4, Fe2O3, Al2O3 and so on, preferably the mixture of CaO, SiO2, Fe2O3 and Al2O3 in a mass ratio of 13:5:1:1.5; and the oxide precursors are selected at least three from Ca(OH)2, CaCO3, MgCO3, Mg(OH)2, Fe(OH)3, Al(OH)3 and so on. The inorganic powder material can be used in processing industrial heavy metal sewage.

The invention relates to a composite rotating disk liquid film reactor and a method for processing organic wastewater in the technical field of chemical industry. The composite rotating disk liquid film reactor comprises a speed regulator, a motor, a composite rotating disk, a reaction pool and a light source, wherein the speed regulator is connected with the motor to carry out speed regulation; the center of the composite rotating disk is fixedly arranged at the output end of the motor; the composite rotating disk is positioned in the reaction pool and is in contact with the liquid to be detected in the reaction pool; the lower half part of the composite rotating disk is soaked in a solution of the reaction pool, and the upper half part is arranged in the air; and the light source is horizontally arranged at one side of a titanium dioxide anode and is at the same height with an axle center of the composite rotating disk. A TiO2 light anode is illuminated by an excitation light sourceso that excitation light is illuminated on the surface of TiO2 catalyst by a wastewater liquid film; by sampling analysis after standing for 0.5-2 hours, the moving rate of an organic matter in the wastewater is detected, and the processing of the organic wastewater is finished. The invention compounds a cathode and an anode of a double-rotating disk into a whole when improving the photocatalysisefficiency and reducing the energy consumption, covers a metal substrate with cathode copper and blocks the direct contact between the metal substrate and the wastewater.

The invention relates to a simple green preparation method of stable fluorescent carbon. The method comprises the following steps: mixing sweet rice wine and secondary distilled water and carrying out hydrothermal reaction at 140-180 DEG C to prepare aqueous solution of stable nano fluorescent carbon particle. The preparation method does not need special equipment and special reaction conditions, is simple in process, high in yield and environment-friendly, and is suitable to mass industrial production. The prepared nano fluorescent carbon particle has good water-solubility, high stability and can be directly applied to detection of metal Fe<3+> ions.

The invention discloses an intracellular micro-RNA non-enzymatic amplification detection method based on an electrostatic affinity nano-transporter and cell imaging. According to the method, sequencesof specific DNA (deoxyribonucleic acid) hairpin probes H1 and H2 with fluorescent labels are designed by the aid of a non-enzymatic amplification system according to a detection target micro-RNA sequence, the H1, the H2 and gold nano-particles are assembled into compounds to be transferred to tumor cells, the amplification system and the H1 can be combined when the amplification system contains micro-RNA to be detected, so that the neck of the H1 is opened, parts of generated single-chain structures and the H2 act, the neck of the H2 is opened, the distance between a fluorescent group FAM andBHQ-1 quenching group is increased, fluorescence strength is increased and detected by a fluorescence spectrometer, and intracellular imaging conditions are recorded by a confocal laser scanning microscope. The method is simple in principle, low in detection cost and has the advantages that constant-temperature non-enzymatic amplification is achieved, and the method is high in sensitivity, simpleto operate, easy to popularize and the like.

The invention discloses the application of nanometer ZSM-5 molecular sieve in the reaction for preparing methanol by dimethyl ether catalysis and hydrolyzation, relating to a method for preparing the methanol by gas-solid phase catalysis, namely, the dimethyl ether, water vapour and the ZSM-5 molecular sieve are mixed to obtain the methanol. The invention also discloses the novel application of the nanometer ZSM-5 molecular sieve.

The invention belongs to the technical field of a semiconductor nanometer material and application thereof, and relates to a core-shell structure quantum dot with a transition layer, a fabrication method and application of the core-shell structure quantum dot, a photoanode, a solar photo-electro-chemical device and application of the solar photo-electro-chemical device. The structure of the core-shell structure quantum dot with the transition layer comprises a core layer, the transition layer and a shell layer, wherein the transition layer is yCdSe<x>S<1-x>, the shell layer is CdS, x is more than 0 but less than 1, and y is more than 1. By changing the material structure of the quantum dot and adjusting the energy band structure of the quantum dot, the response of the quantum dot on sunlight is promoted, moreover, the separation of electron hole pairs is facilitated, and the photoelectronic generation efficiency is improved.

The invention discloses a preparation method and application of superfine calcium hexaboride to a battery. The preparation method comprises the steps of: carrying out electrolysis in a fused-salt electrolytic cell at a temperature of 500-750 DEG C through taking a composition of porous calcium borate and a metal current collector as the cathode and taking an insoluble conductor material as the anode, wherein fused-salt electrolyte contains a haloid corresponding to a metal capable of chemically reducing the calcium borate, and the voltage applied through the electrolysis is enough to reduce the calcium borate but not enough to resolve the fused-salt electrolyte; and taking out a reduction product on the cathode from the electrolytic cell, washing by using water and acid removing impurities, drying and then obtaining CaB6 powder. The obtained superfine calcium hexaboride can be used for a cathode material of a high-specific energy alkaline cell. By means of the method, the defects of high synthesis temperature, low yield and more expensive raw material of conventional boride are overcome and continuous production can be carried out.

The invention discloses a biomimetic preparation method of a strontium carbonate crystal, wherein a coronary strontium carbonate nano crystal is prepared by a biomimetic method in a specific communication device by adopting strontium chloride hexahydrate and ammonium bicarbonate as reactants and sesbania gum as a biological regulation agent. According to the target product coronary strontium carbonate nano crystal, the corolla diameter is 3,000-6,000nm; the corolla is composed of nano rods with diameter being 50-80nm; the corolla structure is tight, with purity being greater than or equal to 99% and yield being 97-99%. The method disclosed by the invention has the characteristics of mild conditions, low energy consumption, large corolla diameter, tight corolla structure, high purity, highyield, low preparation cost, etc.

The invention relates to a recovery method of polycarbonate. The method comprises the following steps: by using a high-dissolving-property solvent as a reaction medium, adding polycarbonate and the solvent into a three-neck flask; after the polycarbonate is completely dissolved, adding a catalyst and an alcoholysis agent into the reaction system to perform alcoholysis reaction; after the reaction finishes, washing the reaction solution, carrying out vacuum filtration and drying to obtain alcoholysis products with different viscosity numbers, which have hydroxy groups at the tail end and have the same structure as the repeated chain link of the polycarbonate; and after the reaction finishes, carrying out washing, vacuum filtration, drying and other after-treatment processes on the reaction system to obtain the alcoholysis product. The recovery method degrades the polycarbonate under mild conditions; different reaction conditions are set to obtain products with different chain links; and both ends of the product are provided with the hydroxy groups, and thus, the product can perform polycondensation reaction with other proper monomers, thereby implementing cyclic utilization of polycarbonate in deed.

The invention belongs to the field of the synthesis of ammonia, in particular relates to a method for preparing the ammonia by catalyzing hydrogen and nitrogen. The ammonia is prepared from the hydrogen and the nitrogen serving as reactants by taking platinum nanowires or iron-platinum nanowires as a catalyst under 1-16 atmospheric pressure at the temperature of between 20 and 140 DEG C. In the method, the ammonia can be prepared from the hydrogen and the nitrogen which are catalyzed by the platinum nanowires or the iron-platinum nanowires serving as the catalyst under 1-16 atmospheric pressure at the temperature of between 20 and 140 DEG C, so that high-temperature and high-pressure reaction conditions are avoided, the required reaction device is simple, the energy consumption is reduced, and the method is more economic compared with the prior art; and the yield and the synthesis speed of the ammonia can be improved by improving the temperature and the pressure.

The invention discloses a preparation method for nano-silver powder. The preparation method for the nano-silver powder comprises the following steps that a silver source and a protective agent are dissolved in polyol to prepare a silver-containing solution; an alkaline solution is mixed with the silver-containing solution, and hydrothermal reaction is carried out at the reaction temperature of 120-200 DEG C; and a reaction product is collected and separated to obtain the nano-silver powder, wherein the particle size of nano-silver particles in the nano-silver powder is 50 nm - 600 nm. According to the preparation method for the nano-silver powder, the silver source and the polyol are taken as raw materials, and the nano-silver powder is obtained through hydrothermal method one-step reaction; and a reaction system of the preparation method is simple, the additional reducing agent does not need to be added, and the hydrothermal condition is controlled so that the control of the nano-silver particle size can be realized.

The invention belongs to the technical field of chemical catalysis and relates to a micro-spherical organic polymer solid acid esterification catalyst and a preparation method thereof. In the invention, the method for preparing the micro-spherical polymer solid acid esterification catalyst comprises the following concrete steps: adding 100 parts by weight of distilled water into a reaction kettle, and then, adding 20-50 parts by weight of vinyl unsaturated monomer, 0.1-3 parts by weight of initiating agent and 1-5 parts by weight of emulsifying agent under the condition of stirring for reacting for 1-6h in a boiling state to form an emulsion; cooling the reactants, and acidifying the reactants with an acidifying agent to obtain white solid precipitates; and drying the white solid precipitates in a vacuum drying oven to obtain the micro-spherical polymer solid acid catalyst. The catalyst of the invention can be recycled and regenerated easily and has the advantages of stable catalytic performance, small alcohol acid ratio, no side reaction, high yield, simple after-treatment of products and lower cost.

The invention discloses a preparation method of functionalized terminal group polysiloxane. A preparation method of terminal hydroxyl polysiloxane comprises the following steps of: stirring methylcyclosiloxane, an alkali, water and an amine for reacting; and neutralizing a product with an acid, filtering or washing with water to neutral, and vacuumizing. A preparation method of functionalized terminal group polysiloxane of functionalized terminal group non-hydroxyl comprises the following steps of: stirring methylcyclosiloxane, an alkali, water and an amine for reacting; adding a silane coupling agent and stirring for reacting; and neutralizing an obtained product with an acid, filtering, and vacuumizing. Raw materials used in the method are conventional substances, the reaction conditions are mild, high temperature and inert gas protection are not required, the reaction safety is high, and meanwhile, the cost is saved greatly. The preparation method disclosed by the invention has the advantages of simple reaction device, simple and practical reaction process, convenience for realizing, high efficiency, short preparation time, low energy consumption and low cost.

The invention discloses a fumaropimaric acid modified acrylamide compound, a preparation method thereof and a polymer prepared by the fumaropimaric acid modified acrylamide compound. A structural formula of the fumaropimaric acid modified acrylamide compound is shown in the description. As the fumaropimaric acid modified acrylamide compound is synthesized by taking fumaropimaric acid, a by-product of rosin which is a natural biomass resource, as a raw material, and then the fumaropimaric acid modified acrylamide polymer is obtained through polymerization of the fumaropimaric acid modified acrylamide compound, a synthesis step and a reaction device are simple, the operation is convenient, and the problems of poor heat resistance, difficulty in separation, slow reaction speed, low recycling use performance and the like and the technical problems of environment protection and safety are all solved due to excellent heat resistance, excellent adsorption performance to heavy metals and capability of being repeatedly used for multiple times of the obtained polymer.

The invention discloses an oxidization and degradation composite catalyst and the use thereof in the preparation of a spice from carotenoid, which is the divisional application of the Chinese invention patent application of which the application number is 20810155733.7. The oxidization and degradation composite catalyst is prepared from a metal salt oxidization catalyst and a natural mineral degradation catalyst in a mass ratio of 1:99 to 99:1, wherein the metal salt oxidization catalyst may be one or two, which are mixed in any ratio, of Na2CO3 and CaCO3; and the natural mineral degradation catalyst may be one or several, which are mixed in any ratio, of atlapulgite, kieselguhr and kaolin. The use of the composite catalyst in the preparation of the spice from the carotenoid comprises the following steps of: adding the carotenoid and the oxidization and degradation composite catalyst the amount of which is 0.1 to 10 percent based on the mass of the carotenoid into an inert medium together; and allowing the materials to react at 100 to 200 DEG C for 3 to 24 hours to obtain a multi-component oxidization and degradation product which can be used as the spice. The inert medium may be silicone oil, methyl silicone oil, dimethyl silicone oil or phenyl silicone oil.

The invention discloses an acetylacetone copper (II) catalytic synthesis method for 1,2,3 triazole chemical compounds, and belongs to the field of the synthetic technology of the 1,2,3 triazole chemical compounds. According to the technical scheme, azide and end group compound serve as raw materials, the acetylacetone copper (II) serves as a catalyzer, water serves as a solvent, stirring and reacting are conducted, complete reaction of the raw materials is monitored by TLC, ethyl acetate is added to extract a reaction product, water phase and organic phase are filtered at the same time, a filter cake is cleaned by using the ethyl acetate to obtain the catalyzer, namely, the acetylacetone copper (II) to be recycled repeatedly, and skimming is conducted on filter liquor to obtain the organic phase of the 1,2,3 triazole chemical compound. The catalyzer is cheap, the preparation method is simple, the catalytic efficiency is high, reutilization can be achieved, the catalyzer is reproducible, the reproductive catalyzer still has high catalytic activity, and the yield of the product is equal to the catalyzer before reproduction is conducted.

The invention discloses a method for synthesizing hydroxyl polysiloxane. The method comprises the following steps of: (1) weighing a reaction monomer and alkali, adding into a reactor, and stirring at the temperature of between 40 and 80 DEG C for 0.5 to 2 hours; (2) adding deionized water and amine into the reactor, preserving the heat at the temperature of between 40 and 80 DEG C and reacting with stirring for 4 to 9 hours; and (3) performing water washing on a product until the product is neutral, and vacuumizing to obtain a hydroxyl polysiloxane product. The method for synthesizing the hydroxyl polysiloxane is simple and practical and is low in cost.

The invention provides a new process for preparing tribenuron-methyl. The process comprises the following steps of: performing first reaction in a solvent with a catalyst by using methyl o-sulphamoylbenzoate and solid phosgene, and continuously performing second reaction on the reaction product and methyl triazine to generate the tribenuron-methyl. The process is characterized in that: a one-pot method and a single dimethyl benzene solvent are adopted. By the process, the reaction device is simplified, the reaction time is shortened, the consumption of energy is reduced, and the total yield of the product reaches over 80 percent.

The invention belongs to the field of organic semiconductor materials, and discloses a blue-light organic electrophosphorescence material, and a preparation method and application thereof. The material has the following structural formula, wherein R is a hydrogen atom, C1-C6 alkyl group or C1-C6 alkoxy group; X and Y are respectively Cl or F; and LK is an auxiliary ligand contained by an iridium metal complex. The blue-light organic electrophosphorescence material disclosed by the invention uses 2,3'-dipyridine as a major structure of the ring metal ligand, and the introduction of the alkyl and alkoxy groups can obtain satisfactory energy transfer efficiency and blue-light emitting wavelength and can a certain steric hindrance effect, thereby reducing the direct actions among metal atoms, reducing the self-quenching phenomenon of triplet-state excitons and greatly enhancing the light conversion efficiency of the material; and meanwhile, the F and Cl substitution on the ring metal ligand can improve the luminescence property, facilitate vapor deposition, improve the film-forming property, enhance the stability of the device and enhance the color purity.

The invention relates to a method for utilizing o-chlorocyclohexanol to prepare cyclohexene oxide by cyclization. The method comprises the steps of weighing o-chlorocyclohexanol, solid alkali and a solvent, placing the o-chlorocyclohexanol, the solid alkali and the solvent into a reactor to undergo a reaction, performing a heating stirring reaction, obtaining a reaction mixture after the reaction is finished, and obtaining the product cyclohexene oxide by separation. The solid alkali is a load type metal salt, and the adopted solvent is lower alcohol. The method has the advantages that a large number of waste water caused by used sodium hydroxide serving as a catalyst is avoided, the production cost is reduced, the process is simple, the used solid alkali has no harm to the human body and can be separated from a product easily, the method is a green chemical process, the used solid alkali is high in selectivity for a principal product, and the method is favorable for the reaction.

The invention discloses a diazotization continuous tubular reactor which comprises liquid storage tanks, a tubular reactor, a diazotization salt separation storage tank and a circular cooling system, wherein all liquid storage tanks are connected with the tubular reactor through a mixer which can be used for sufficiently mixing all reaction materials and feeding the mixture into the tubular reactor; a flow controller is arranged between each liquid storage tank and the mixer; the mixer and the tubular reactor are in sealed connection; the circular cooling system comprises a quencher, a mediumstorage tank, a quencher nozzle and a recycling mechanism, wherein the quencher is used for connecting the outlet of the tubular reactor with the liquid inlet tube of the diazotization salt separation storage tank; the medium storage tank is used for storing a cooling medium; the quencher nozzle is used for quickly spraying the cooling medium into the quencher; the recycling mechanism is connected with the diazotization salt separation storage tank and used for recycling the cooling medium and cooling the recycled cooling medium; the recycling mechanism and the medium storage tank are connected; the cooling medium is low-temperature high-pressure CO2; and the top of the diazotization salt separation storage tank is provided with an exhaust port. The diazotization continuous tubular reactor disclosed by the invention has the advantages of high reaction yield, low energy consumption and strong generality.