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119results about How to "Aperture size adjustable" patented technology
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Method for preparing pore diameter controllable through hole anodized aluminum oxide film
The invention relates to technology for preparing an anodized aluminum oxide film, in particular to a method for preparing a pore diameter controllable through hole anodized aluminum oxide film. The method comprises the following steps of: performing anode electrolysis treatment on an anodized aluminum oxide film with an aluminum substrate in mixed solution of perchloric acid and acetone to obtain a pore diameter controllable anodized aluminum oxide film with two open ends in short time (2-300 seconds), wherein the pore diameters at the top end and the bottom end fo the anodized aluminum oxide film are accurately controllable in ranges of between 10 and 100nm and between 5 and 25nm; and putting the aluminum oxide film with the aluminum substrate subjected to stage depressurization-method oxidation into acetone solution of perchloric acid, and applying voltage 5-15V higher than film forming voltage for anode electrolysis treatment to obtain the pore diameter controllable through hole anodized aluminum oxide film. In the method, the pore diameters at the top end and the bottom end of the anodized aluminum oxide film can be respectively controlled, holing and removal of the aluminum substrate are completed by one step, and a plurality of problems of complicated process, time consumption, difficult control of pore diameters and the like in the conventional process for preparing the through hole anodized aluminum oxide film.
Owner:INST OF METAL RESEARCH - CHINESE ACAD OF SCI
Method for selective hydrogenation through cracking of C5-C9 distillate
InactiveCN107159283AAperture size adjustableGood adhesive performancePhysical/chemical process catalystsRefining by selective hydrogenationPtru catalystHydrogenation reaction
The present invention relates to a method for selective hydrogenation through cracking of a C5-C9 distillate. According to the method, the catalyst comprises an alumina carrier having a macroporous structure and metal active components comprising nickel and tungsten and supported on the carrier, the nickel oxide content is 12-22 wt% based on the total weight of the catalyst, the tungsten oxide is 1.5-8 wt% based on the total weight of the catalyst, and the hydrogenation reaction process conditions are that the reaction inlet temperature is 40-55 DEG C, the reaction pressure is 2.0-3.5 MPa, the hydrogen oil volume ratio is 60-150, and the liquid volume space velocity is 3.0-5.5 h<-1>. According to the present invention, the catalyst has characteristics of good glue capacity, strong arsenic resistance, strong sulfur resistance, strong coking inhibition and low temperature activity; and the method provides strong adaptability for the cracking gasoline raw materials having different arsenic contents and different sulfur contents.
Owner:QINZHOU UNIV
Process of preparing carbon naotube foam
InactiveCN101066756AAperture size adjustableNanostructure manufactureCarbon nanotubeMetal matrix composite
The process of preparing carbon nanotube foam includes the following steps: mixing mixed acid treated carbon nanotube and 0.5-6 wt% concentration water solution of gelatin in the ratio of 1 g to 40-150 ml and ultrasonic treating for 10-60 min; adding organic solvent in 2-20 ml into the mixture solution and stirring until form elastomer; pressurizing the elastomer inside a graphite mold at 1-100 MPa for 10-40 min, vacuum drying at 50-200 deg.c for 1-5 hr, maintaining in N2 environment at 200-800 deg.c for 1-5 hr, and cooling to normal temperature to obtain the carbon nanotube foam. Thus produced carbon nanotube foam has no organic polymer adhesive contained, and adjustable porosity and pore size, and may be used in preparing composite material prefab and in producing biological rack material, biological carrier, catalyst carrier, etc.
Owner:HUNAN UNIV
Fluorenyl windmill grid material and preparation and application method thereof
ActiveCN105646529ATest thermal stabilityMild conditionsOrganic chemistrySolid-state devicesSolubilityPolymer science
The invention relates to a fluorenyl windmill grid material and a preparation and application method thereof, and belongs to the field of organic molecular materials and high and new photoelectric technologies. The fluorenyl windmill grid material is cyclic oligomer with fluorenyl micromolecules as monomers, and the specific general structural formula is shown in the description. The material has the advantages that the fluorenyl windmill grid material has both porous characteristics and semiconductor photoelectric characteristics; raw materials are cheap and easy to obtain, reaction conditions are mild, and operation is easy; the fluorenyl windmill grid material has good mechanical properties of a nanomaterial; the fluorenyl windmill grid material has good solubility, and nanofilm processing or fibration processing is facilitated; with a rigid framework, the fluorenyl windmill grid material is high in glass transition temperature, high in thermal stability, electrochemical stability and spectrum stability and the like. Thus, the fluorenyl windmill grid material is expected to become a new-generation practical organic micromolecular photoelectric material and has good application prospects in the fields of organic electronics, spintronics, optoelectronics, mechatronics, nanobiology and the like.
Owner:NANJING UNIV OF POSTS & TELECOMM
Preparation method of carbon fiber-loaded mesoporous titania
ActiveCN103696235AImprove surface activityHigh porosityCarbon fibresMesoporous materialAdvanced composite materials
The invention discloses a preparation method of carbon fiber-loaded mesoporous titania, and belongs to a carbon fiber surface modification technology. An activated carbon fiber is adopted as a load body, and the mesoporous titania is loaded on the surface of the carbon fiber by sol-gel reaction by virtue of a guiding role of a template. The method has the advantages that titania-modified carbon fiber which has a mesoporous structure, is controllable in load capacity, and uniform in distribution, and has a phase in an anatase structure can be prepared, and high specific surface area of the mesoporous material is beneficial to improvement of interface bonding between a carbon fiber reinforcement and a base material. Thus, the mechanical property of the carbon fiber composite material is improved further. Meanwhile, the preparation method has important significance in expansion of application of the carbon fiber in the structure-energy storage integrated multifunctional composite material. The preparation method can be applied to the technical fields such as an advanced composite material, energy storage, absorption and the like.
Owner:JIANGSU UNIV
Catalyst for hydrogen desulfurization of catalytic cracking gasoline and preparation method of catalyst
ActiveCN107081155AAperture size adjustableLow priceHeterogenous catalyst chemical elementsMetal/metal-oxides/metal-hydroxide catalystsHydrogenHydrodesulfurization
The invention discloses a catalyst for hydrogen desulfurization of catalytic cracking gasoline and a preparation method of the catalyst. The catalyst comprises the following components based on mass of oxides: 78.0-94.0wt% of an alumina supporter of a macroporous structure, 2.0-10.5wt% of an active ingredient cobalt oxide and 2.5-15.0wt% of molybdenum oxide, wherein the supporter takes chitosan as a pore-enlarging agent. The hydrogen desulfurization catalyst is low in octane loss and high in desulfurization rate.
Owner:廊坊高科广大科技有限公司
Flexible self-supporting porous electrode, preparation method thereof and application thereof
ActiveCN108122687APromote infiltrationEasy transferHybrid capacitor electrodesHybrid/EDL manufactureFreeze-dryingSlurry
The invention relates to a flexible self-supporting porous electrode, a preparation method thereof and application thereof. A slurry is prepared by mixing one or two or more organic polymer resins, aconductive agent and a carbon material, and the slurry is applied on a glass plate and is transformed into the flexible self-supporting porous electrode by immersion phase transformation and freeze drying. The flexible self-supporting porous electrode has great advantages in electrode preparation process, economy, electrode composition structure, battery performance and the like and has a good application prospect, and the flexible self-supporting porous electrode can be used as an electrode of a super capacitor.
Owner:DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
A preparation method of through-hole anodic aluminum oxide film with controllable pore size and thickness
The invention relates to a technique for preparing an anode alumina film, in particular to a method for preparing the anode alumina film which has small aperture, is ultra thin and is controllable in aperture and thickness. In the method, high-pure aluminum is used as an anode, a certain constant-voltage and direct-current power supply is applied onto a sulfuric acid electrolyte to perform anodicoxidation, proper voltages between the cathode and the anode, electrolyte concentration, electrolyte temperature and anode oxidization time are selected, and after the reaction, anode alumina with analuminum substrate is used as an anode and placed in mixed solution of perchloric acid and acetone, anode electrolysis treatment is performed under a voltage which is 5 to 15V higher than an anode oxidization voltage to make an alumina film separate from the aluminum substrate and to remove a baffle layer, and thus, the small-aperture through-hole anode alumina film with controllable aperture andthickness is obtained. When the method is used, the mass, simple, nondestructive, uniform and large-scale preparation of small-aperture and through-hole anode alumina film is realized, and the technical problem that the small-diameter and ultra-thin through hole anode alumina film is not available at present is solved.
Owner:INST OF METAL RESEARCH - CHINESE ACAD OF SCI
Aluminum oxide carrier with macro-porous structure and preparation method
ActiveCN106994361AAperture size adjustableEffective control of macropore ratioCatalyst carriersPetrochemicalPore diameter
The invention relates to an aluminum oxide carrier with a macro-porous structure. The carrier contains auxiliary agent components phosphorus and magnesium, wherein the content of the auxiliary agent components phosphorus and magnesium in the carrier is as follows in percentage by mass: 0.1 weight percent to 2.5 weight percent of P2O5 and 0.1 weight percent and 2.5 weight percent of MgO; the pore diameter distribution is 60nm to 180nm, the macro-pore ratio is 2 percent to 75 percent, the pore capacity is 0.8ml / g to 2.0ml / g and the specific surface area is 250m<2> / g to 300m<2> / g; macro-porous aluminum oxide has the characteristics of adjustable pore diameter size and capability of effectively controlling the macro-pore ratio. The aluminum oxide carrier with the macro-porous structure can be used for the fields including petrochemical industry and fine chemical engineering.
Owner:QINZHOU UNIV
Preparation method and application of magnetic MOF composite
InactiveCN106984273ASuperparamagneticEasy to separateOther chemical processesWater contaminantsOrganic dyeSio2 nanoparticle
The invention relates to a preparation method and application of a magnetic MOF composite and belongs to the technical field of material preparation. The preparation method comprises the following steps: preparing superparamagnetic ferroferric oxide nanoparticles by adopting a solvent thermal process, taking superparamagnetic ferroferric oxide as a core, coating a silicon dioxide shell on the surface of ferroferric oxide by adopting a hydrolysis method, so that Fe3O4@SiO2 nanoparticles are obtained, dissolving ferric trichloride hexahydrate and terephthalic acid into methylene formamide (DMF) to obtain DMF mixed liquor, then adding the Fe3O4@SiO2 nanoparticles and the DMF mixed liquor into a reaction kettle, and reacting, so that the magnetic MOF composite is obtained. The magnetic MOF composite can be used for adsorption of organic dye methylene blue.
Owner:KUNMING UNIV OF SCI & TECH
Method for hydrogenation and arsenic removal of distillate oil
InactiveCN107011939AAperture size adjustableLow pricePhysical/chemical process catalystsHydrocarbon oils treatmentReaction temperatureFixed bed
The invention discloses a method for hydrogenation and arsenic removal of distillate oil. The active centers of a catalyst are nickel and molybdenum; an alumina carrier with a macroporous structure is used as a catalyst carrier and accounts for 70.0 to 96.0 wt%; the active component nickel oxide accounts for 2.0 to 20.0 wt%; and the active component nickel oxide accounts for 2.0 to 10.0 wt%. A fixed-bed reactor is used in a reaction. Process conditions are that reaction temperature is 120 to 220 DEG C; reaction pressure is 1.0 to 4.0 MPa; a hydrogen-oil volume ratio is 100-300: 1; and volume space velocity is 1.0 to 10.0 / h. The method has the following advantages: reaction conditions are mild; raw materials are widely available; the arsenic removal rate of a product is high; and the catalyst has long-period reaction activity, good stability and a long operation period.
Owner:QINZHOU UNIV
Preparation method of mesoporous beta-TCP (tricalcium phosphate) powder
ActiveCN104445130ASmall apertureIncrease the aperturePhosphorus compoundsTri calcium phosphateBeta tcp
The invention relates to a preparation method of mesoporous beta-TCP (tricalcium phosphate) powder. The preparation method comprises steps as follows: 1), two parts of transparent solutions containing surfactants, cosurfactants and water are prepared; 2), a calcium-containing inorganic salt solution and a phosphorus-containing inorganic salt solution are added to the transparent solutions respectively and stirred, a phosphorus-containing inorganic salt mixed solution is added to a calcium-containing inorganic salt mixed solution, the pH value is adjusted, and the mixture is stirred to obtain an emulsion; and 3), the mixture is left to stand, subjected to ageing, centrifugation, washing and drying, placed in a high-temperature furnace, heated and subjected to heat preservation, and mesoporous beta-TCP powder is obtained. The preparation method has the benefits as follows: 1, the operation is simple, energy consumption is low, the cost is low, the reaction condition is mild, and harmful substances are not generated in the preparation process; and 2, the obtained mesoporous beta-TCP powder has smaller pore diameter and has a three-dimensional pore structure, the average pore diameter of the mesoporous beta-TCP powder is 8.80-21.36 nm, and the specific surface area is 10.11-153.43 m<2> / g.
Owner:WUHAN UNIV OF TECH
Multilayer structure stent as well as preparation method and application
ActiveCN111139213AIncrease elasticityOptimal Control StructureCell culture supports/coating3D cultureHigh cellNew medications
The invention relates to a multilayer structure stent as well as a preparation method and application. The multilayer structure stent comprises a structure from a centimeter scale to a micrometer scale, and is applied to the fields of 3D cell culture, in vitro large-scale amplification, in vitro tissue-like construction, tissue engineering and regenerative medicine, pathological model research, new drug research and development and drug toxicology research. The multilayer structure stent has the characteristics of customized macrostructure, controllable hierarchical structures, adjustable poresize, high porosity and permeability, high cell load, high elasticity modulus, good mechanical properties, good cell functions and nondestructive cell collection.
Owner:TSINGHUA UNIV
MXene-based three-dimensional porous flexible self-supporting membrane, preparation method thereof and application of membrane in electrochemical adsorption of dyes
ActiveCN112452299AHigh specific surface areaImprove removal efficiencySemi-permeable membranesOther chemical processesMicrosphereCarbon nanotube
The invention relates to an MXene-based three-dimensional porous flexible self-supporting membrane, a preparation method thereof and an application of the membrane in electrochemical adsorption of dyes. The preparation method of the self-supporting membrane comprises the following steps that an MXene nanosheet suspension, a polystyrene microsphere suspension and a single-walled carbon nanotube suspension are mixed and stirred to be uniform, an obtained mixed solution is subjected to ultrasonic treatment, then vacuum filtration is conducted, so that an MXene / PS / SWCNTs composite film is obtained, and then, the polystyrene microsphere template is removed, so that the MXene-based three-dimensional porous flexible self-supporting membrane can be obtained. The self-supporting membrane obtained in the invention has a large pore volume and a high specific surface area, and can expose more active sites. The prepared self-supporting membrane is used for removing dye through electrochemical adsorption and has the advantages of being high in removal efficiency, easy to recycle, low in cost, easy to control and the like.
Owner:SHANDONG UNIV
First-stage selective hydrogenation catalyst for cracking gasoline, and preparation method thereof
ActiveCN107159279ALow priceGood glue capacityPhysical/chemical process catalystsRefining by selective hydrogenationChemistryArsenic
The present invention relates to a first-stage selective hydrogenation catalyst for cracking gasoline, wherein the catalyst comprises an alumina carrier having a macroporous structure and a metal active component palladium supported on the carrier, and the palladium content is 0.2-0.35 wt% based on the total weight of the catalyst. The catalyst of the present invention has advantages of good glue capacity, strong arsenic resistance, strong sulfur resistance, and strong coking inhibition.
Owner:QINZHOU UNIV
Preparation method and application of cobalt oxide/mesoporous carbon composite material electrochemical sensor
InactiveCN107228889AHigh sensitivityHigh selectivityMaterial electrochemical variablesLinear relationshipNanocomposite
The invention relates to the field of rapid detection of food safety and particularly relates to a preparation method and application of an electrochemical sensor based on a cobalt oxide / mesoporous carbon nanocomposite material and application of the electrochemical sensor in fast detection of nitrite content in a food. The preparation method of the electrochemical sensor comprises preparing a nanocomposite material carrying cobalt oxide particles and graphitized mesoporous carbon, and modifying a work electrode of the electrochemical sensor. The electrochemical sensor can detect a standard solution of nitrite, determine the linear relationship between the nitrite concentration and current, determine nitrite in the food and compare the nitrite content in the food and the linear relationship to obtain nitrite content of the food to be detected. The electrochemical sensor can determine nitrite content of a food, is easy to operate, has a fast detection rate and high detection sensitivity and provides a novel detection method for efficient and rapid detection of nitrite content in a food.
Owner:SHANGHAI OCEAN UNIV
Method for preparing biodegradable spherical porous starch foam and application
InactiveCN101880405AUniform particle sizeShell structure is tightPharmaceutical non-active ingredientsSolubilityFreeze thawing
The invention relates to a process for preparing biodegradable spherical porous starch foam and a biodegradable spherical porous starch foam administration system for an insoluble medicament. The process adopts an emulsifying-freeze thawing combined solvent displacement method, and comprises the following steps of: performing high-speed stirring or homogenizing treatment (emulsion homogenizing machine) on starch-melted aqueous solution with certain concentration serving as a water phase, methylbenzene / chloroform mixed solution (or other emulsion oil phase) serving as an oil phase and Span80 (or other W / O emulsifying agent) serving as an emulsifying agent to form uniform W / O emulsion, standing the emulsion for certain time at the temperature of 20 DEG C below zero, demixing the emulsion by gelling, dehydrating the layers in turn by adopting balance of aqueous solution of methanol with different concentrations, separating and removing the methylbenzene / chloroform layer by adopting a separating funnel, balancing the solution by using anhydrous ethanol, filtering the solution, and drying the filtrate with vacuum to obtain the biodegradable spherical porous starch foam. The foam material suitable to be used as an insoluble medicament carrier increases the specific surface area and water solubility of the insoluble medicament, and finally improves the bioavailability of the insoluble medicament.
Owner:SHENYANG PHARMA UNIVERSITY
Large-pore-size mesoporous carbon/silicon dioxide loaded gold nano-catalyst and synthesis method thereof
InactiveCN106345461ARegulatory stabilityControl particle sizeMaterial nanotechnologyMetal/metal-oxides/metal-hydroxide catalystsSolventNano catalyst
The invention relates to a large-pore-size mesoporous carbon / silicon dioxide loaded gold nano-catalyst and a synthesis method thereof. The catalyst has a face-centered cubic ordered structure, the specific surface area is 200m<2> / g to 700<2> / g, the pore volume is 0.30cm<3> / g to 0.60cm<3> / g, the pore size is 7.0nm to 20nm, and the mass percent of Au is 0.5% to 2.5%. During preparation, the mesoporous carbon / silicon dioxide loaded gold nano-catalyst is synthesized in one step through mixing a macromolecular surfactant, which serves as a template agent, with a gold source, a carbon source and a silicon source and carrying out solvent-induced volatilization self-assembly. Compared with the prior art, the catalyst provided by the invention has the characteristics of high-ordered mesoscopic structure, adjustable pore size (7.0nm to 20nm), relatively small gold nano particle size (3nm to 5nm), adjustable gold content (0.5wt% to 2.5wt%), and the synthesis method is simple, is low in cost and facilitates the implementation of large-scale production, thereby having very good economic application prospect.
Owner:SHANGHAI NORMAL UNIVERSITY
Preparation method of MIP (molecular imprinted polymer) magnetic mesoporous silica-based microspheres
ActiveCN105754053AIncrease reaction rateLarge specific surface areaIon-exchange process apparatusOther chemical processesTetraethyl orthosilicateCitrate sodium
The invention discloses a preparation method of MIP (molecular imprinted polymer) magnetic mesoporous silica-based microspheres. According to the method, a ractopamine MIP is constructed by polymerizing surface-initiated atom transfer radicals on magnetic mesoporous silica-based microspheres, sodium citrate modified Fe3O4 magnetofluid is taken as a core, mesoporous silica spheres are prepared through hydrolysis and self-assembly of tetraethyl orthosilicate and octadecyltrimethoxysilane with long carbon chains, and the magnetic mesoporous silica-based microspheres with submicron particle size are obtained; further, the surfaces of prepared magnetic mesoporous silica-based microspheres are modified with an ATRP (atom transfer radical polymerization) initiator, then the modified magnetic mesoporous silica-based microspheres are taken as a reactor, the ractopamine MIP is generated in mesopores through adsorption, and the MIP magnetic mesoporous silica-based microspheres which can be used for separating and enriching trace substances are formed and have higher adsorption capacity and better selection for ractopamine and similar drugs of ractopamine.
Owner:GUANGDONG ENG TECH INST
Preparation method for self-supporting porous electrode, and self-supporting porous electrode and application thereof
ActiveCN107845774AGood flexibilityWide range of applicationsElectrode manufacturing processesLi-accumulatorsOrganic solventPorosity
The invention relates to a preparation method for a self-supporting porous electrode, and the self-supporting porous electrode. The preparation method comprises the following steps: mixing organic polymer resin, a conductive agent and a carbon-sulfur compound in an organic solvent, scraping the obtained mixture onto a notched substrate, preparing an electrode blank by using an immersion phase inversion method, separating the electrode blank from the substrate, and subjecting the electrode blank to washing and freeze drying so as to prepare the self-supporting porous electrode. The flexible porous electrode is simple and environment-friendly to prepare, controllable in thickness, adjustable in pore size and porosity, wide in application scope, and capable of maximally reducing material waste in shearing and flaking and breaking requirements of traditional flexible self-supporting electrodes on material dimensions (i.e., 1D and 2D).
Owner:DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
Generation device for producing mesoporous bubbles
PendingCN109316989ALarge specific surface areaThe pore structure is regular and orderlyFlow mixersTransportation and packagingProduct gasMesoporous material
The invention discloses a generation device for producing mesoporous bubbles. The generation device comprises a liquid inlet pipe (1), a gas inlet pipe (2-3), a gas-liquid mixing component (4-7), a foaming component (8) and a liquid outlet pipe (9-10). The gas-liquid mixing component enables suction of gas to reach the gas-liquid mixing effect through diameter shrinkage; and the foaming componentis formed by a large bubble element and a mesoporous material element, the large bubble element is used for producing relatively large bubbles through direct gas-liquid mixing, dissolved gas mixing, hydraulic mixing and the like and then enabling gas and liquid to produce the mesoporous bubbles after passing through a mesoporous material. The generation device for producing the mesoporous bubblescan be applied to a plurality of fields of full mixing between the gas and the liquid and has a certain popularization and application prospect.
Owner:江门市崖门新财富环保工业有限公司
Porous nickel framework material and preparation method thereof
ActiveCN108405848AHigh strengthHigh densityTransportation and packagingMetal-working apparatusPorosityFiltration
The invention discloses a porous nickel framework material and a preparation method thereof. The porous nickel framework material has three-dimensional communication holes, has material density being5.32-9.76g / cm<3>, microhardness being 120-539.8HV, room-temperature compressive strength being 186-930 MPa and porosity being 30-83%. The preparation method comprises the following steps of: A, performing screening, impurity-removal and drying on prepared spherical metal nickel powder, and sealing for storage; and B, adopting a sintering process to sinter and form the spherical metal nickel powerobtained in the step A, thereby obtaining the porous nickel framework block material. The porous nickel framework material is high in strength, is uniform in three-dimensional hole distribution, and is good in compactness; and the preparation method is simple and reliable in process, is free of harmful gas in process, and does not cause environmental pollution. Meanwhile, the front engineering material with advantages in function and structure can be applied to the fields such as industrial wastewater treatment, filtration and separation, automobile tail gas treatment, catalyst carriers, energy storage and chemical engineering.
Owner:SOUTHWEST JIAOTONG UNIV
First-stage selective hydrogenation method for pyrolysis gasoline
InactiveCN107057757AGood choiceHigh activityCatalyst activation/preparationRefining by selective hydrogenationRaw materialChemistry
The invention relates to a first-stage selective hydrogenation method for pyrolysis gasoline. The pyrolysis gasoline is C6-C8 fraction, a catalyst comprises an alumina supporter with a macroporous structure and metal active components including nickel and tungsten which are supported on the supporter, wherein the content of nickel oxide is 12wt%-22wt% of total weight of the catalyst, the content of tungsten oxide is 1.5wt%-8wt% of the total weight of the catalyst, and technological conditions of the hydrogenation reaction are shown as follows: the reaction inlet temperature is 60-100 DEG C, the reaction pressure is 2.0-3.5 MPa, a volume ratio of hydrogen to oil is 60-180, and volume space velocity of a liquid is 3.0-5.5 h<-1>. The catalyst is better in colloid tolerance capacity, is arsenic-resistant and sulfur-resistant, has high coking inhibition capacity and is well-adapted to pyrolysis gasoline raw materials with different arsenic content and different sulfur content.
Owner:QINZHOU UNIV
A benzene hydrogenation catalyst and a preparing method thereof
InactiveCN107096533AAperture size adjustableGood resistance to impuritiesHydrocarbon by hydrogenationHeterogenous catalyst chemical elementsBenzeneActive component
A benzene hydrogenation catalyst and a preparing method thereof are disclosed. The catalyst includes, based on mass of oxides, 90.3-97 wt% of an alumina carrier having a macroporous structure and adopting chitosan as a pore-enlarging agent, 0.2-4.9 wt% of an active component that is platinum oxide and 0.2-4.8 wt% of an active component that is palladium oxide. The macroporous alumina carrier comprises auxiliary components which are tin, lanthanum and potassium. The catalyst has high benzene hydrogenation activity, the rate of loss of precious metal active components is low, and an operation cycle is long.
Owner:QINZHOU UNIV
Olefin oligomerization catalyst and preparation method thereof
InactiveCN107185560AAperture size adjustableGood resistance to impuritiesPhysical/chemical process catalystsHydrocarbonsAdditive ingredientSulfate
The invention discloses an olefin oligomerization catalyst and a preparation method thereof. The catalyst is prepared from the following ingredients through being metered by the mass of oxides: 81.0 to 96.0 weight percent of aluminum oxide carriers with macroporous structures (carriers use chitosan as pore-enlarging agents), 2.5 to 11.5 weight percent of active ingredients of ferric sulfate and 1.5 to 7.5 weight percent of nickel sulfate. The olefin oligomerization catalyst has the advantages that the oligomerization activity is high; the dioolymer selectivity is high; the trimer selectivity is low; the operation period of the catalyst is long.
Owner:QINZHOU UNIV
Corrugated pipe clamping device capable of adjusting pore size
InactiveCN107870121AEasy to test ring stiffnessExtended service lifeStrength propertiesEngineeringBellows
The invention relates to the technical field of bellows clamping devices, and discloses a bellows clamping device with adjustable aperture size, which includes a fixing seat, and a support rod is fixedly installed on the right end of the fixing seat and on the top of the fixing seat. The left end of the fixed seat is provided with a slide bar on the left side of the support rod, the left side of the fixed seat is provided with a horizontal chute on the top surface of the fixed seat, and the bottom of the horizontal chute is located inside the fixed seat. There are grooves. The bellows clamping device with adjustable aperture size can control the size of the clamping aperture by pushing the movement of the slide bar through the improvement of the clamping device, so that the corrugated pipes with different apertures can be adjusted by the improved clamping device. The pipe is clamped, so that when the tension of the bellows is tested by the clamping device, the size of the aperture can be adjusted for clamping, which meets the various needs of users, and also improves the efficiency of testing the ring stiffness of the bellows.
Owner:无锡华利达金属制品有限公司
Device and method for testing bond performance between reinforced bar and concrete under repeated load
PendingCN108896422ASimple structureEasy loading and unloading and test operationMaterial strength using repeated/pulsating forcesElectro hydraulicStrain sensor
The invention relates to the technical field of construction engineering test and detection, in particular to a device and method for testing the bond performance between a reinforced bar and concreteunder repeated load. The device comprises a loading frame and a strain sensor mechanism; the loading frame comprises an upper loading plate and a lower loading plate, screw rods, a force transmissionplate, a ball joint assembly and a connecting rod, wherein the four corners of each one of the upper loading plate, lower loading plate and force transmitting plate are provided with screw rod holes,the screw rods penetrate through the screw rod holes respectively and are connected to form the integrated loading frame through fastening nuts cooperatively arranged on the screw rods, the strain sensor mechanism comprises a loading end deformation sensor mechanism, a free end deformation sensor mechanism and a test piece sensor mechanism. The device and method for testing the bond performance between the reinforced bar and the concrete under the repeated load have the advantages that the structure is simple, the installation and detachment of a test piece and the test operation are convenient, the precise control can be achieved, and accurate test data and results can be obtained through the loading control of a multi-function electro-hydraulic servo test machine and an existing data acquisition technology.
Owner:ZHENGZHOU UNIV +1
Preparation method of double-layer ceramic filter membrane for separation and refining of traditional Chinese medicine
InactiveCN101658764ASimple processEasy to shapeSemi-permeable membranesPolyvinyl alcoholTraditional Chinese medicine
Owner:CHONGQING UNIVERSITY OF SCIENCE AND TECHNOLOGY
Catalyst for hydrodesulfurization of catalytic cracking gasoline and preparation method thereof
ActiveCN107081155BAperture size adjustableLow priceHeterogenous catalyst chemical elementsMetal/metal-oxides/metal-hydroxide catalystsPtru catalystHydrodesulfurization
Owner:廊坊高科广大科技有限公司
Porous bracket material used for biomedicine and preparation method of porous bracket material
The invention discloses a porous bracket material used for the biomedicine and a preparation method of the porous bracket material, belonging to the field of biomedical material science engineering. The porous bracket material aims to improve the hydrophily of PHB (Polyhydroxybutyrate), and controllability on the aperture and the distribution of the PHB can be enhanced. The porous bracket material is prepared by taking the PHB and polyethylene glycol the base material and combining a template method and a freeze drying method. The porosity of the bracket made of the porous bracket material is determined by the concentration of an initial solution, and pre-freezing temperature also affects the average porosity and the porosity distribution. The Polyhydroxybutyrate / polyethylene glycol porous bracket material has the advantages of good biocompatibility, adjustable hydrophilic / lyophobic balance and controllable porosity and distribution, can meet requirements of different types of cells, and simultaneously guarantees the mechanical strength of the porous material and the affinity of a biomass (cell). The bracket material is very suitable for the apposition growth of a cartilaginous tissue cell.
Owner:DALIAN CHUANGDA TECH TRADE MARKET
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