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32results about How to "Conducive to large-scale industrial application" patented technology

Preparation method of active carbon loaded catalyst for electrochemically catalyzing and degrading organic wastewater

The invention relates to a preparation method of an active carbon loaded catalyst for electrochemically catalyzing and degrading organic wastewater and belongs to the technical field of preparation of catalysts. The preparation method comprises the following steps: preparing an active carbon solid containing a plurality of types of active metal by using a sol-gel method; adding P2O5 powder into the active carbon solid containing the active metal and roasting; sublimating the P2O5 powder into gas at a high temperature; and when the gas is expanded at the high temperature and escapes, generating a plurality of small pores in the active carbon, so that the specific surface area and adsorption capability of the active carbon are improved. According to the preparation method, rare earth metal is used in match with the other active metal so that grains on the surface of the catalyst are uniform and thinned; and meanwhile, the preparation method is combined with a method of adding the P2O5 powder to roast, so that the catalysis efficiency of the prepared active carbon loaded catalyst can be improved by more than 5%-15%. The method has a simple process, is convenient to operate and is low in cost; and in a process of electrochemically catalyzing and degrading the organic wastewater by using the prepared catalyst, other oxidants do not need to be additionally added and the large-scale industrialized application of the preparation method is facilitated.
Owner:武汉森宁开源科技有限公司

Double-component organic silica gel for packaging of large power IGBT (insulated bipolar translator) and preparation method thereof

The invention discloses a double-component organic silica gel for packaging of a large power IGBT (insulated bipolar translator) and a preparation method thereof. The organic silica gel is prepared by mixing a component A and a component B, wherein the component A is prepared by mixing the following components in parts by weight: 100 parts of vinyl silicone oil and 0.02-1 parts of platinum catalyst, the component B is prepared by mixing the following components in parts by weight: 70-90 parts of vinyl silicone oil, 10-30 parts of chain extender (end of which contains hydrogen silicone oil), 0.5-5 parts of cross-linking agent (side chain of which contains hydrogen silicone oil), 0.1-1 part of inhibitor, and 0.05-0.5 parts of antioxygen. When the double-component organic silica gel is used, the component A and the component B are stirred and mixed uniformly according to weight ratio of 1 to 1 so as to be solidified to obtain the organic silica gel. The organic silica gel takes silicone oil of high purity as raw material, and has good heat stability, low volatile matter, and high dielectric strength, thus meeting the use requirement of a large power IGBT module.
Owner:ZHUZHOU TIMES ELECTRIC INSULATION

Quick and clean process for preparing biological diesel oil with esterification/ester exchange reaction

The invention relates to a novel process for preparing biodiesel through natural oil which has different acid numbers and a rapid esterification / ester interchange reaction with catalysts of minute quantity at an alcohol-oil consolute temperature. The process comprises the following steps of: taking animal and vegetable oil as raw materials, adding the oil and methanol into a reaction kettle according to an alkyd mol ratio of 2 to 1-10 to 1 for rapid esterification, and adding the acid catalyst of minute quality which is 0.01-1 per mille of the weight of the oil with reaction conditions of 120-200 DEG C, 2.0-8.0Mpa, and 10-30min; after neutralization deacidification, adding refined oil and methane into a high-pressure reaction kettle according to a mol ratio of 1 to 6-1 to 20 for rapid ester interchange, and adding a base catalyst of minute quality which is 0.01-1 per mille of the weight of the refined oil with reaction conditions of 140-200 DEG C, 2.0-8.0Mpa, and 5-20min; carrying out the sedimentation or centrifuge of a reaction product, and generating a qualified biodiesel product after removing methane through upper layer liquid phase distillation. The process uses minute quantity of catalysts and does not need separation with quick reaction and simple procedure without pollution and corrosion. The process has the advantages of mild conditions, environmental protection and remarkable efficiency.
Owner:SICHUAN UNIV

Electrochemical reactor and method for electrocatalytically removing chloride ions

The invention provides an electrochemical reactor and a method for electrocatalytically removing chloride ions and relates to the technical field of wastewater treatment. The anode of the electrochemical reactor comprises a net basket made of insoluble metal and a Ru-Ti-AC catalytic material filling the net basket, and a carbon rod or a metal wire is led out of the middle of the anode and connected to the positive pole of a power supply; a cathode comprises multiple metal plates or metal nets arranged at intervals, the interval between every two adjacent metal plates or metal nets is 4-6 cm, and the cathode is connected to the negative pole of the power supply through a wire. The electrochemical reactor is high in electrolytic efficiency and high in chloride ion degradation rate. The method for electrocatalytically removing the chloride ions is implemented with adoption of the electrochemical reactor. To-be-treated wastewater is introduced into a reaction tank of the electrochemical reactor and submerges the anode and the cathode, constant current is applied between the anode and the cathode, the wastewater is stirred continuously, and a reaction is performed for 0.1-2 h. The method is convenient to operate and beneficial to large-scale industrial application.
Owner:武汉骐琳环保科技有限公司

Preparation method of catalyst used for electrical catalytic degradation of organic wastewater

The invention provides a preparation method of a catalyst used for electrical catalytic degradation of organic wastewater and relates to a preparation method of a wastewater treatment catalyst. The preparation method comprises the following steps: carrying out pretreatment on a coal-based activated carbon carrier, namely washing the activated carbon carrier to be neutral with deionized water, cooling, then washing to be neutral, carrying out ultrasonic cleaning for 20 minutes, and finally drying at the temperature of 80 DEG C for later use; and preparing a catalyst by adopting an in situ precipitation method, namely dispersing the pretreated coal-based activated carbon powder and amorphous Fe78Si13B9 powder into distilled water and putting in a three-mouth flask, under the protection of nitrogen atmosphere, adding 10-30ml of FeSO4.7H2O solution with the concentration of 1mol/L, alternately washing with ethanol for five times, carrying out vacuum drying for 12 hours by virtue of a drying oven, grinding a dried reaction product in a mortar, and screening by virtue of a 200-mesh sieve, so that a coal-based activated carbon supported amorphous Fe78Si13B9/nano Fe3O4 catalyst is obtained. The prepared catalyst integrates adsorption, catalysis, internal electrolysis and magnetic separation into a whole, and solves the problems that the catalyst is difficult to separate and recycle and efficient removal of an organic matter is difficult.
Owner:丹东龙泽化工有限责任公司

Activated rust layer rust converting agent for electric transmission and transformation equipment and preparation method and application of rust converting agent

ActiveCN105543828AReduce the difficulty of surface treatmentImprove surface qualityMetallic material coating processesIonChemistry
The invention relates to an activated rust layer rust converting agent for electric transmission and transformation equipment and a preparation method and application of the rust converting agent and belongs to the technical field of corrosion prevention of special materials. The rust converting agent disclosed by the invention is prepared from the following components in parts by mass: 8-15 parts of phosphoric acid, 1-3 parts of citric acid, 0.5-3 parts of oxalic acid, 0.1-0.5 parts of thiourea, 0.1-0.5 parts of triethanolamine, 1-2 parts of zinc oxide, 5-8 parts of zinc dihydrogen phosphate, 0.1-1 parts of molybdate, 0.1-1 parts of hydrochloride, 0.5-1 parts of emulsifier, 0.5-1 parts of hydrofluoride, 0.5-1 parts of sodium benzoate, and 70-80 parts of deionized water. The components are added to a container according to proportion and mechanically stirred to be uniform, a product can be obtained after the reaction is completed and the solution is transparent and has not impurities, and in use, the rust converting agent can be brushed before a paint is coated. The rust converting agent is reasonable in component design and simple in preparation process, and the obtained rust converting agent has excellent performances, is wide in application scope and is convenient for large-scale production and application.
Owner:STATE GRID CORP OF CHINA +2

Ru-Ti-AC catalytic material and a preparation method thereof

The invention provides a Ru-Ti-AC catalytic material and a preparation method thereof and relates to the field of activated carbon supported catalysts. The preparation method comprises the steps that activated carbon is soaked with an acidic aqueous solution, is washed with water and is dried to obtain pretreated activated carbon; the pretreated activated carbon is mixed with ruthenium chloride, butyl titanate, citric acid and a solvent, and even stirring is performed to obtain a mixed reaction solution, a pH value of the mixed reaction solution is regulated, and then reaction is performed at the temperature of 92-95 DEG C to obtain slurry; the slurry is evaporated to be dry at the temperature of 125-135 DEG C, a solid is obtained, and drying is performed to obtain an activated carbon solid; Na2CO3 powder is added to the activated carbon solid, even mixing is performed, calcination is performed at the temperature of 750-850 DEG C, and cooling is performed to obtain the material. The preparation method is simple in process, convenient to operate and low in cost, the prepared Ru-Ti-AC catalytic material can be used for electrical catalytic degradation of chloride ion wastewater, additional other oxidizing agents are not needed, the electrolytic efficiency is high, the chloride ion degradation rate is high, and large-scale industrialized application is promoted.
Owner:HUBEI UNIV

Phase change heat storage composite material with flame retardance and flexibility as well as preparation method and application of phase change heat storage composite material

The invention discloses a phase change heat storage composite material with flame retardance and flexibility as well as a preparation method and application of the phase change heat storage composite material. The phase change heat storage composite material is prepared from phase change microcapsules, flaky aluminum oxide powder, hydroxyl-terminated polydimethylsiloxane, tetraethoxysilane, dibutyltin dilaurate and the like. The preparation method comprises the following steps: firstly, preparing a phase change microcapsule which takes paraffin as a core material and an inorganic non-combustible material as a wall material by adopting a self-assembly method; the preparation method comprises the following steps: preparing phase change microcapsules, uniformly stirring and mixing the prepared phase change microcapsules with flaky alumina powder, hydroxyl-terminated polydimethylsiloxane, tetraethoxysilane, dibutyltin dilaurate and other components, transferring the mixture into a mold, carrying out compression molding, and curing the obtained product in a drying oven to prepare the phase change heat storage composite material. The phase change heat storage composite material provided by the invention has good flame-retardant and flexible characteristics, can be used for a lithium ion battery heat management system, is simple and convenient in preparation method and low in material cost, and has relatively great industrial application potential.
Owner:CIVIL AVIATION FLIGHT UNIV OF CHINA

Preparation method of tandem solar cell capable of reducing cost and improving conversion efficiency

The invention belongs to the technical field of solar cell preparation, in particular to a method for preparing a low-cost high-efficiency laminated solar cell. The present invention comprises the following steps in sequence: texturing, pn junction formation, tunneling silicon oxide deposition, phosphorus element doping, annealing, passivation layer growth, patterned opening, conductive layer deposition, electron transport layer formation, perovskite Film formation, hole transport layer formation, antireflection layer formation and electrode preparation. The solar cell prepared by the present invention has a stacked cell structure, which greatly improves the conversion efficiency of the cell, and the top cell of the present invention adopts a very low-cost perovskite cell, and the bottom cell adopts a high-efficiency passivation contact cell , the key and expensive preparation process of the whole battery is all realized by ultra-low-cost printing or spin-coating or ink-jet methods of various chemical slurries, thus greatly reducing the manufacturing cost while greatly improving the conversion efficiency of the battery , which is conducive to large-scale industrial application and realizes parity Internet access.
Owner:东方日升(宁波)新能源有限公司

Electrochemical reactor and method for electrocatalytic removal of chloride ions

The invention provides an electrochemical reactor and a method for electrocatalytically removing chloride ions and relates to the technical field of wastewater treatment. The anode of the electrochemical reactor comprises a net basket made of insoluble metal and a Ru-Ti-AC catalytic material filling the net basket, and a carbon rod or a metal wire is led out of the middle of the anode and connected to the positive pole of a power supply; a cathode comprises multiple metal plates or metal nets arranged at intervals, the interval between every two adjacent metal plates or metal nets is 4-6 cm, and the cathode is connected to the negative pole of the power supply through a wire. The electrochemical reactor is high in electrolytic efficiency and high in chloride ion degradation rate. The method for electrocatalytically removing the chloride ions is implemented with adoption of the electrochemical reactor. To-be-treated wastewater is introduced into a reaction tank of the electrochemical reactor and submerges the anode and the cathode, constant current is applied between the anode and the cathode, the wastewater is stirred continuously, and a reaction is performed for 0.1-2 h. The method is convenient to operate and beneficial to large-scale industrial application.
Owner:武汉骐琳环保科技有限公司

Polymer capable of quickly adsorbing low-concentration formaldehyde, and preparation method thereof

The invention discloses a polymer capable of rapidly adsorbing low-concentration formaldehyde, and a preparation method thereof. The method comprises the following steps: (1) dissolving beta-cyclodextrin, a ligand and a reaction catalyst into a solvent; (2) carrying out ultrasonic treatment on the mixed solution obtained in the step (1), purging the mixed solution with gas, and then carrying out aheating stirring reaction; and (3) washing the porous beta-cyclodextrin polymer obtained in the step (2), filtering, soaking, activating, and drying to obtain the polymer. The formaldehyde adsorbentbased on beta-cyclodextrin has excellent formaldehyde adsorption performance. Compared with the existing formaldehyde adsorbing material, the formaldehyde adsorbent of the invention has the advantagesthat the adsorption rate and the adsorption amount of low-concentration formaldehyde are greatly increased, the adsorption amount reaches 28.9 mg / g under 10 ppm and is 80 times that of common activecarbon, the adsorption rate is more than 10 times that of the common active carbon, and the requirement for rapid and efficient adsorption of indoor formaldehyde is met, so that the adsorbent has a great potential application prospect in the aspect of indoor low-concentration formaldehyde adsorption.
Owner:SOUTH CHINA UNIV OF TECH

Catalyst preparation method for electrocatalytic degradation of organic wastewater

The invention provides a preparation method of a catalyst used for electrical catalytic degradation of organic wastewater and relates to a preparation method of a wastewater treatment catalyst. The preparation method comprises the following steps: carrying out pretreatment on a coal-based activated carbon carrier, namely washing the activated carbon carrier to be neutral with deionized water, cooling, then washing to be neutral, carrying out ultrasonic cleaning for 20 minutes, and finally drying at the temperature of 80 DEG C for later use; and preparing a catalyst by adopting an in situ precipitation method, namely dispersing the pretreated coal-based activated carbon powder and amorphous Fe78Si13B9 powder into distilled water and putting in a three-mouth flask, under the protection of nitrogen atmosphere, adding 10-30ml of FeSO4.7H2O solution with the concentration of 1mol / L, alternately washing with ethanol for five times, carrying out vacuum drying for 12 hours by virtue of a drying oven, grinding a dried reaction product in a mortar, and screening by virtue of a 200-mesh sieve, so that a coal-based activated carbon supported amorphous Fe78Si13B9 / nano Fe3O4 catalyst is obtained. The prepared catalyst integrates adsorption, catalysis, internal electrolysis and magnetic separation into a whole, and solves the problems that the catalyst is difficult to separate and recycle and efficient removal of an organic matter is difficult.
Owner:丹东龙泽化工有限责任公司

A kind of active rust layer rust transfer agent for power transmission and transformation equipment and its preparation method and application

ActiveCN105543828BExtend your lifeReduce the difficulty of surface treatmentMetallic material coating processesThioureaPhosphate
The invention relates to an activated rust layer rust converting agent for electric transmission and transformation equipment and a preparation method and application of the rust converting agent and belongs to the technical field of corrosion prevention of special materials. The rust converting agent disclosed by the invention is prepared from the following components in parts by mass: 8-15 parts of phosphoric acid, 1-3 parts of citric acid, 0.5-3 parts of oxalic acid, 0.1-0.5 parts of thiourea, 0.1-0.5 parts of triethanolamine, 1-2 parts of zinc oxide, 5-8 parts of zinc dihydrogen phosphate, 0.1-1 parts of molybdate, 0.1-1 parts of hydrochloride, 0.5-1 parts of emulsifier, 0.5-1 parts of hydrofluoride, 0.5-1 parts of sodium benzoate, and 70-80 parts of deionized water. The components are added to a container according to proportion and mechanically stirred to be uniform, a product can be obtained after the reaction is completed and the solution is transparent and has not impurities, and in use, the rust converting agent can be brushed before a paint is coated. The rust converting agent is reasonable in component design and simple in preparation process, and the obtained rust converting agent has excellent performances, is wide in application scope and is convenient for large-scale production and application.
Owner:STATE GRID CORP OF CHINA +2

A kind of fe-co-ac catalytic material and preparation method thereof

The invention provides a Fe-Co-AC catalytic material and a preparation method thereof and relates to the field of activated carbon supported catalysts. The preparation method comprises the steps that activated carbon is soaked with an acidic aqueous solution, is washed with water and is dried to obtain pretreated activated carbon; the pretreated activated carbon is mixed with a ferric nitrate solution, a cobalt nitrate solution and citric acid and is stirred evenly to obtain a mixed reaction solution; the pH value of the mixed reaction solution is regulated, and then reaction is performed at the temperature of 70-90 DEG C to obtain slurry; the slurry is evaporated to dryness at the temperature of 100-120 DEG C, and a solid is obtained and is dried to obtain an activated carbon solid; P2O5 solid powder is added to the activated carbon solid and is evenly mixed, and the mixed is roasted at the temperature of 300-700 DEG C and is cooled. The preparation method is simple in process, convenient to operate and low in cost, the prepared Fe-Co-AC catalytic material can be used for electrocatalytic degradation of chloride ion wastewater without adding of other oxidizing agents, is high in electrolysis efficiency, high in chlorine ion degradation rate and suitable for large-scale industrial application.
Owner:HUBEI UNIV

A preparation method of activated carbon-supported catalyst for electrocatalytic degradation of organic wastewater

The invention relates to a preparation method of an active carbon loaded catalyst for electrochemically catalyzing and degrading organic wastewater and belongs to the technical field of preparation of catalysts. The preparation method comprises the following steps: preparing an active carbon solid containing a plurality of types of active metal by using a sol-gel method; adding P2O5 powder into the active carbon solid containing the active metal and roasting; sublimating the P2O5 powder into gas at a high temperature; and when the gas is expanded at the high temperature and escapes, generating a plurality of small pores in the active carbon, so that the specific surface area and adsorption capability of the active carbon are improved. According to the preparation method, rare earth metal is used in match with the other active metal so that grains on the surface of the catalyst are uniform and thinned; and meanwhile, the preparation method is combined with a method of adding the P2O5 powder to roast, so that the catalysis efficiency of the prepared active carbon loaded catalyst can be improved by more than 5%-15%. The method has a simple process, is convenient to operate and is low in cost; and in a process of electrochemically catalyzing and degrading the organic wastewater by using the prepared catalyst, other oxidants do not need to be additionally added and the large-scale industrialized application of the preparation method is facilitated.
Owner:武汉森宁开源科技有限公司

Electrochemical oxygen catalytic reduction cathode material for water treatment and preparation method thereof

The invention relates to an electrochemical oxygen catalytic reduction cathode material for water treatment and a preparation method thereof, and belongs to the technical field of preparation of catalytic materials. A mesh material, a porous material or a foam material containing any one metal matrix material of steel, chromium, nickel, titanium, stainless steel and copper is used as a raw material; after the raw material is processed by an oxygen (O) chemical combination treatment, a sulfur (S) chemical combination treatment, a nitrogen (N) chemical combination treatment or a phosphorus (P) chemical combination treatment; the raw material is used as an oxygen catalytic reduction cathode material of an electrochemical cathode oxygen reduction technology for water treatment, so that electron transfer in the cathode electrochemical catalytic oxygen reduction process is easier, and the capacity of generating active oxygen (HO., H2O2 and O3) in-situ on an electrode of an electrochemical reactor is greatly improved; and therefore, the efficiency of electrochemical catalytic degradation of organic wastewater is greatly improved, compared with that of a traditional electrode. The method is simple in process and convenient to operate, is much lower in cost than a traditional precious metal material, is much higher in cathode efficiency than a common graphite material, and has a great practical application value.
Owner:HUBEI UNIV +1
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