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53results about How to "Stable mesoporous structure" patented technology
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NH3 sensor of mesoporous WO3 material based on supported precious metal Pt and preparation method of NH3 sensor
InactiveCN105784789AThe synthesis method is simpleLow costMaterial resistanceHigh volume manufacturingMesoporous material
The invention provides an NH3 sensor of a mesoporous WO3 material based on supported precious metal Pt and a preparation method of the NH3 sensor and belongs to the technical field of semiconductor oxide gas sensors.Precious metal Pt is supported on the mesoporous WO3 material prepared through the hard template method to prepare a sensitive material.By means of the large specific surface area of the mesoporous WO3 material and the catalysis action of Pt on NH3, sensitivity of the sensor to NH3 is effectively improved.Besides, the adopted sensor structure is composed of an Al2O3 insulating ceramic tube with two annular gold electrodes, a semiconductor sensitive material coated on the annular gold electrodes and the Al2O3 insulating ceramic tube, and a nichrome heating coil penetrating through the Al2O3 insulating ceramic tube.The sensor is simple in process, small in size and suitable for large-scale production, and has wide application prospects in the aspect of detection of NH3 content in the microenvironment.
Owner:JILIN UNIV
Spherical composite carrier with macroporous two-dimensional through pore channel and composite material containing polyethylene catalyst, and preparation methods and application thereof
ActiveCN106467582AStable mesoporous structureOrdered mesoporous structureActive componentPore diameter
The invention relates to the field of catalysts, and discloses a spherical composite carrier with a macroporous two-dimensional through a pore channel and a composite material containing a polyethylene catalyst, and preparation methods and application thereof. The carrier provided by the invention has an average particle diameter of 10 to 80 [mu]m, a specific surface area of 200 to 600 m2 / g, a pore volume of 0.1 to 2.5 mL / g, and pore size distribution in bimodal distribution, wherein two peaks respectively corresponds to a first most probable pore size of 1.2 to 4.5 nm and a second most probable pore size of 32 to 60 nm. The carrier provided by the invention has stable mesoporous structure, still can maintain an ordered mesoporous structure after loading active components, and has high activity when loading the polyethylene catalyst to catalyze ethylene for polymerization reaction.
Owner:CHINA PETROLEUM & CHEM CORP +1
Preparation method of low-temperature high-efficiency denitrification catalyst MnO2
InactiveCN104475084ALarge specific surface areaAdsorbed oxygenManganese oxides/hydroxidesMetal/metal-oxides/metal-hydroxide catalystsPtru catalystSilicic acid
The invention relates to a preparation method of a low-temperature high-efficiency denitrification catalyst MnO2, which comprises the following steps: dissolving P123 in a deionized water-hydrochloric acid mixed solution, sequentially adding butanol and ethyl orthosilicate, and stirring; pouring into a closed polypropylene reaction kettle to react, collecting the solid, and drying; cleaning with an ethanol-hydrochloric acid mixed solution, and calcining to obtain a KIT-6 template; dropwisely adding into a manganous nitrate-ethanol mixed solution, stirring, separating the precipitate, cleaning with a sodium hydroxide solution and deionized water to a neutral state, and drying; and calcining in a muffle furnace to obtain the target substance. Compared with the traditional MnO2 catalyst, the mesoporous-structure MnO2 catalyst has the advantages of large specific area, more adsorbed oxygen and high removal ratio of oxynitrides; the MnO2 catalyst has high stability, and the mesoporous structure is still stable after denitrification treatment; and the MnO2 catalyst has higher selective catalytic reduction activity at low temperature, and thus, has favorable application prospects.
Owner:NANKAI UNIV
Preparation method of silica gel column supported meso-porous biochar solid sulfonic acid
ActiveCN106914258AHigh yieldHigh sulfonic acid contentPhysical/chemical process catalystsInvert sugar productionFiberSucrose
The invention provides a preparation method of silica gel column supported meso-porous biochar solid sulfonic acid (SiO2-BC-SO3H) from wood fiber biomass, and a method using the silica gel column supported meso-porous biochar solid sulfonic acid to catalyze sucrose hydrolysis for preparing glucose. The preparation method of the SiO2-BC-SO3H comprises the following steps: biomass heat carbonization or concentrated sulfuric acid dehydration carbonization, boiling water swelling, acidic silica sol intercalation, heating (350 DEG C) dehydration in nitrogen, and concentrated sulfuric acid sulfonation. The silica gel content of the SiO2-BC-SO3H prepared through the steps is about 15 wt%, the sulfonic group density is 0.9 mmol / g or above, and the SiO2-BC-SO3H has an interlayer meso-porous structure. The SiO2-BC-SO3H has better catalysis activity and better reusability than non-porous biochar solid sulfonic acid in the catalysis of the sucrose hydrolysis reaction.
Owner:岳阳湘茂医药化工有限公司
Ethylene polymerization method and polyethylene
The present invention relates to the field of polymerization reactions, and discloses an ethylene polymerization method and polyethylene obtained through the ethylene polymerization method. The ethylene polymerization method comprises: carrying out a polymerization reaction on ethylene in the presence of a catalyst under a polymerization reaction condition, wherein the catalyst contains a spherical porous mesoporous composite material and a magnesium salt and / or a titanium salt supported on the spherical porous mesoporous composite material, and the spherical porous mesoporous composite material contains a mesoporous molecular sieve material with a one-dimensional through-hole structure, and a mesoporous molecular sieve material with a hexagonal pore channel structure. According to the present invention, the supported catalyst with the stable mesoporous structure is used, such that the polyethylene product with characteristics of low bulk density, low melt index and breaking resistancecan be obtained.
Owner:CHINA PETROLEUM & CHEM CORP +1
Super-macroporous three-dimensional cubic channel spherical composite carrier and supported polyethylene catalyst, and preparation methods and applications thereof
The invention relates to the field of catalyst, and discloses a super-macroporous three-dimensional cubic channel spherical composite carrier and a supported polyethylene catalyst, and preparation methods and applications thereof. The carrier has an average particle diameter of 20-60mum, specific surface area of 200-600m<2> / g, and pore volume of 0.1-2mL / g. Pore size distribution is bimodal distribution, wherein the two modals are respectively corresponding to first most probable pore sizes of 3-10nm and second most probable pore sizes of 30-39nm. The super-macroporous three-dimensional cubic channel spherical composite carrier has a stable mesoporous structure, and can maintain ordered mesoporous structure after loading the active component. The carrier has high activity while loading the polyethylene catalyst for catalyzing an ethylene polymerization reaction. The supported polyethylene catalyst has high loading rate.
Owner:CHINA PETROLEUM & CHEM CORP +1
Magnetic palladium-carrying nitrogen-doped mesoporous carbon catalyst, preparation method and application thereof
InactiveCN106492866AStable mesoporous structureEvenly distributedWater contaminantsMetal/metal-oxides/metal-hydroxide catalystsSalt solutionPalladium
The invention discloses a magnetic palladium-carrying nitrogen-doped mesoporous carbon catalyst, a preparation method and an application thereof. A carrier of the magnetic palladium-carrying nitrogen-doped catalyst is nitrogen-doped mesoporous carbon, wherein palladium nano particles and iron nano particles are carried by surface of and pores in the nitrogen-doped mesoporous carbon. The preparation method includes the steps of: dissolving palladium salt to obtain a palladium salt solution, adding the magnetic nitrogen-doped mesoporous carbon to the palladium salt to obtain a mixture liquid; adding a formic acid solution to the mixture liquid, and performing a heating reaction to prepare the catalyst. The catalyst has stable structure and high catalytic performance, can prevent aggregation of the palladium nano particles and iron nano particles, and can be applied for removing Cr(VI) ions in water.
Owner:HUNAN UNIV
Spherical double-mesoporous-structure composite material, supported polyethylene catalyst, and preparation methods therefor
The invention relates to the field of catalysts, and particularly relates to: a spherical double-mesoporous-structure composite material, a preparation method of the spherical double-mesoporous-structure composite material, the spherical double-mesoporous-structure composite material produced through the method, a supported polyethylene catalyst, a preparation method of the supported polyethylene catalyst, and the supported polyethylene catalyst produced through the method. The spherical double-mesoporous-structure composite material contains a mesoporous molecular sieve material having a hollow-spherical structure, a mesoporous molecular sieve material having a three-dimensional cube-cage-shaped structure, and silica gel. The spherical double-mesoporous-structure composite material has stable mesoporous structure and can maintain an order mesoporous structure even after supporting an active component. In addition, the supported polyethylene catalyst produced therewith has high catalytic activity when being used for catalyzing an ethylene polymerization reaction.
Owner:CHINA PETROLEUM & CHEM CORP +1
Ethylene polymerization method and polyethylene
The invention discloses a method for polymerizing ethylene and polyethylene prepared by using the method, belonging to the field of polymerization. Ethylene is subjected to a polymerization reaction in the presence of a catalyst under polymerization conditions, wherein the catalyst contains a spherical mesoporous composite material and a magnesium salt and / or a titanium salt loaded on the spherical mesoporous composite material. The spherical mesoporous composite material has an average particle size of 20-30 micrometers, a specific surface area of 100-300 square meters / gram and a pore volume of 0.5-1.8 ml / gram; and the pore diameters of the spherical mesoporous composite material are in the form of bimodal distribution, and the most probable pore diameters corresponding to double peaksare 1-10 nm and 20-55 nm, respectively. According to the method, the supported catalyst with a stable mesoporous structure is utilized, and the prepared polyethylene is low in bulk density and melt index and not prone to fragmentation.
Owner:CHINA PETROLEUM & CHEM CORP +1
Copper-based antibacterial masterbatch and preparation method thereof
ActiveCN109097856AHigh temperature resistantStable mesoporous structureMonocomponent polyolefin artificial filamentMonocomponent polyesters artificial filamentFiberCuprous salt
The invention relates to a copper-based antibacterial masterbatch and a preparation method thereof. The preparation method comprises the steps of mixing a soluble cuprous salt with water, adding mesoporous zirconium silicate to perform immersion adsorption to obtain a mixture; mixing and adding thiosulfate, metaphosphate and water into the obtained mixture, performing drying after the reaction, and obtaining cuprous ion-loaded zirconium silicate powder; mixing a carrier resin, a dispersing agent, a processing aid and the cuprous ion-loaded zirconium silicate powder and then performing extrusion pelleting, and obtaining the copper-based antibacterial masterbatch. A fiber obtained according to a conventional spinning process by the copper-based antibacterial masterbatch obtained through themethod has excellent antibacterial property and not only has good oxidation resistance, but also has excellent washing resistance, the preparation method is simple and convenient to operate, efficient, low in cost and lasting in effect and has a broad application prospect.
Owner:晋大纳米科技(厦门)有限公司
Novel catalyst used in production of methyl ethyl ketone and preparation method thereof
ActiveCN107638888AFacilitated DiffusionImprove accessibilityMolecular sieve catalystsOrganic compound preparationMolecular sieveKetone
The invention discloses a novel catalyst used in production of methyl ethyl ketone and a preparation method thereof. The method comprises the following steps: preparing a KIT-1 molecular sieve with amesoporous structure by taking ionic liquid, namely, [choline][aspartic acid] as a template agent, wherein the KIT-1 molecular sieve is taken as a catalyst carrier; meanwhile, loading elements V and Zn onto the catalyst carrier by a supercritical impregnation technology to obtain a methyl ethyl ketone catalyst which has the advantages of insusceptibility to inactivation, high hydrothermal stability, wide application range of reaction raw material concentration (5 to 100 percent), and remarkable increase in 2,3-butanediol transformation rate and methyl ethyl ketone selectivity.
Owner:台州路豹鞋业有限公司
Ethylene polymerization method and polyethylene
ActiveCN107417824AStable mesoporous structureOrdered mesoporous structureMolecular sievePolymer science
The invention relates to the field of polymerization reactions and discloses an ethylene polymerization method and polyethylene produced therefrom. The ethylene polymerization method includes the steps of: in the presence of a catalyst, polymerizing ethylene under polymerization reaction conditions, wherein a catalyst contains a spherical composite material and magnesium salt and / or titanium salt supported thereon. The spherical composite material contains a mesoporous molecular sieve material having a hollow spherical structure and silica gel. The invention also discloses polyethylene produced through the method. The supported polyethylene catalyst has high catalytic activity when being used in the ethylene polymerization reaction. Meanwhile, a polyethylene product having excellent performance is produced.
Owner:CHINA PETROLEUM & CHEM CORP +1
Spherical mesoporous composite material and supported catalyst and preparation method thereof
ActiveCN108017731AStable structureSmall particle sizeBulk chemical productionMolecular sieveMesoporous material
The invention relates to the field of mesoporous materials, and discloses a spherical mesoporous composite material and a supported catalyst and a preparation method thereof. The spherical mesoporouscomposite material comprises a mesoporous molecular sieve material with a one-dimensional hollow spherical pore structure, and the spherical mesoporous composite material has an average particle sizeof 21 to 29 microns, a specific surface area of 100-650 m<2> / g, and a pore volume of 0.5-1.8 ml / g, and the pore diameter is in trimodal distribution. The spherical mesoporous composite material provided by the invention has the advantages of stable mesoporous structure and uniform particle size distribution, the spherical mesoporous composite material as a catalyst carrier is high in strength andnot easily broken, and the supported polyethylene catalyst prepared from the spherical mesoporous composite material has high catalytic activity when catalyzing ethylene polymerization. A polyethyleneproduct which has a low bulk density and a low melt index and is not easily broken can be obtained.
Owner:CHINA PETROLEUM & CHEM CORP +1
Ethanol sensor based on horseshoe-shaped SO2 sensitive material having annular meso-pores, and production method of sensor
InactiveCN106198626AEasy transferEase of mass productionMaterial analysis by electric/magnetic meansHigh volume manufacturingSemiconductor
The invention relates to an ethanol sensor based on a horseshoe-shaped SO2 sensitive material having annular meso-pores, and a production method of the sensor, and belongs to the technical field of semiconductor oxide gas sensors. The horseshoe-shaped SO2 sensitive material having annular meso-pores, prepared through using a soft template technology, is used in the invention. The large specific surface area and the ordered pore structure of the meso-porous material are used to effectively improve the sensitive property of the sensor to C2H5OH. The sensor structure is composed of an Al2O3 insulating ceramic tube with two annular gold electrodes, a semiconductor sensitive material coated on the annular gold electrodes and the Al2O3 insulating ceramic tube, and a nickel-chromium alloy heating coil traversing through the Al2O3 insulating ceramic tube. The sensor disclosed in the invention has the advantages of simple process, small size, and suitableness for large-batch production, so the sensor has wide application prospect in the detection of the content of C2H5OH in environment.
Owner:JILIN UNIV
Aluminum ion-doped mesoporous titanium dioxide lithium battery anode material and preparation method thereof
InactiveCN108155374AIngredient influenceLarge specific surface areaCell electrodesSecondary cellsAluminum IonSurface-active agents
The invention relates to an aluminum ion-doped mesoporous titanium dioxide lithium battery anode material and a preparation method thereof, and belongs to the field of electrode material preparation techniques and energy. The preparation method comprises the following steps that (1), a titanium source, aluminum salt, hydrochloric acid and absolute ethyl alcohol are mixed according to a certain mole ratio, and a first reaction solution is obtained; (2), a certain amount of surface active agent dissolves in absolute ethyl alcohol, and a second reaction solution is obtained; (3), the first reaction solution and the second reaction solution are mixed and stirred, heated and subjected to aging, and xerogel is obtained; and (4),) xerogel is placed in a muffle furnace to be subjected to heat treatment, and aluminum ion-doped mesoporous titanium dioxide is obtained. The prepared titanium dioxide material has the advantages of being good in stability, large in specific surface area, high in conductivity and excellent in electrochemical performance, can serve as the anode of lithium-ion batteries, and is suitable for industrialized production.
Owner:CHINA ACADEMY OF SPACE TECHNOLOGY
A kind of method of ethylene polymerization and polyethylene
Owner:CHINA PETROLEUM & CHEM CORP +1
Spherical small particle size mesoporous composite material and supported catalyst and preparation method thereof
The invention relates to the field of mesoporous materials, and discloses a spherical small-size mesoporous composite material, a supported catalyst, and preparation methods of the spherical small-size mesoporous composite material and the supported catalyst. The spherical small-size mesoporous composite material contains a mesoporous molecular sieve material having a three-dimensional cubic cage-like pore channel structure, and has the average particle size of 15-30 [mu]m, the specific surface area of 200-650 m<2> / g, and the pore volume of 0.5-1.5 ml / g, wherein the pore sizes are distributedin a bimodal manner. According to the present invention, the spherical small-size mesoporous composite material has characteristics of stable mesoporous structure and uniform particle size distribution, and can provide the advantages of high strength and breaking resistance in the application as the catalyst carrier; and with the application of the supported polyethylene catalyst prepared from thespherical small-size mesoporous composite material in the catalysis of ethylene polymerization reactions, the high catalytic activity can be provided, and the polyethylene products with characteristics of low bulk density, low melt index and breaking resistance can be obtained.
Owner:CHINA PETROLEUM & CHEM CORP +1
Macroporous two-dimensional double-channel spherical composite carrier and composite material containing polyethylene catalyst and their preparation method and application
ActiveCN106467579BStable mesoporous structureOrdered mesoporous structureBulk chemical productionActive componentPore diameter
The invention relates to a macroporous two-dimensional dual-channel spherical composite carrier and a composite material containing a polyethylene catalyst, and preparation methods and application thereof, belonging to the field of catalysts. The composite carrier contains silica and has a pore volume of 0.5 to 1.5 mL / g, a specific surface area of 200 to 650 m<2> / g and an average particle size of 30 to 60 [mu]m; pore diameter distribution is in the form of bimodal distribution; and double peaks respectively correspond to a first most probable pore size of 7 to 14 nm and a second most probable pore size of 30 to 39 nm. The spherical composite carrier provided by the invention has a stable mesoporous structure, can maintain an ordered mesoporous structure after loading of active components and presents high activity in catalysis of polymerization of ethylene after loading of the polyethylene catalyst.
Owner:CHINA PETROLEUM & CHEM CORP +1
Spherical mesoporous composite material and supported catalyst and preparation method thereof
ActiveCN108623720BStable structureSmall particle sizeBulk chemical productionPtru catalystMelt flow index
The invention discloses a spherical mesoporous composite material, and a supported catalyst and a preparation method thereof, belonging to the field of mesoporous materials. The spherical mesoporous composite material has an average particle size of 20-30 micrometers, a specific surface area of 100-300 square meters / gram and a pore volume of 0.5-1.8 ml / gram; and the pore diameters of the spherical mesoporous composite material are in the form of bimodal distribution, and the most probable pore diameters corresponding to double peaks are 1-10 nm and 20-55 nm, respectively. The spherical mesoporous composite material provided by the invention has a stable mesoporous structure and uniform particle size distribution, and is high in strength and not prone to breakage as a catalyst; and the supported polyethylene catalyst prepared from the same has high catalytic activity when used for catalysis of ethylene polymerization, and polyethylene products which have low bulk density and a low melt index and are not prone to breakage are broken can be obtained.
Owner:CHINA PETROLEUM & CHEM CORP +1
A kind of method of ethylene polymerization and polyethylene
ActiveCN107417831BStable mesoporous structureOrdered mesoporous structureMolecular sievePolymer science
Owner:CHINA PETROLEUM & CHEM CORP +1
Spherical composite carrier with macroporous two-dimensional straight-through channels and composite material containing polyethylene catalyst as well as its preparation method and application
ActiveCN106467582BStable mesoporous structureOrdered mesoporous structureActive componentHigh activity
The invention relates to the field of catalysts, and discloses a spherical composite carrier with a macroporous two-dimensional through a pore channel and a composite material containing a polyethylene catalyst, and preparation methods and application thereof. The carrier provided by the invention has an average particle diameter of 10 to 80 [mu]m, a specific surface area of 200 to 600 m2 / g, a pore volume of 0.1 to 2.5 mL / g, and pore size distribution in bimodal distribution, wherein two peaks respectively corresponds to a first most probable pore size of 1.2 to 4.5 nm and a second most probable pore size of 32 to 60 nm. The carrier provided by the invention has stable mesoporous structure, still can maintain an ordered mesoporous structure after loading active components, and has high activity when loading the polyethylene catalyst to catalyze ethylene for polymerization reaction.
Owner:CHINA PETROLEUM & CHEM CORP +1
Acidic donut-shaped macroporous/mesoporous material, preparation method thereof, and application of acidic donut-shaped macroporous/mesoporous material in preparation of 2, 6-bis(imino)pyridine
PendingCN113318783AStable mesoporous structureImprove performanceOrganic chemistryMolecular sieve catalystsFormic acidAminopyridines
The invention relates to the field of material preparation, and discloses an acidic donut-shaped macroporous / mesoporous material, a preparation method thereof, and application of the acidic donut-shaped macroporous / mesoporous material in preparation of 2, 6-bis(imino)pyridine. The average particle size of the acidic donut-shaped macroporous / mesoporous material is 3-20 [mu]m, the specific surface area is 200-800 m<2> / g, the pore volume is 1-2 ml / g, and the most probable pore size is 7-10 nm; and acetic acid is attached to the outer surface and / or the inner hole wall of the acidic donut-shaped macroporous / mesoporous material. When the catalyst is applied to an organic reaction, the activity of the catalyst in the organic reaction is far higher than that of industrial p-toluenesulfonic acid, formic acid or acetic acid after catalysis, and the catalyst can be repeatedly used and is more beneficial to environmental protection.
Owner:CHINA PETROLEUM & CHEM CORP +1
Spherical illite mesoporous composite material and supported catalyst and preparation method thereof
ActiveCN107417822BStable mesoporous structureOrdered mesoporous structureMolecular sievePolymer science
The invention relates to the field of mesoporous materials and discloses a spherical illite mesoporous composite material and a supported catalyst comprising same. The spherical illite mesoporous composite material includes illite and a mesoporous molecular sieve material which has a cube-cage-shaped pore structure. The composite material has a stable mesoporous structure since the spherical illite mesoporous composite material includes the illite and the mesoporous molecular sieve material in cube-cage-shaped pore structure. By means of the supported catalyst, a polyethylene product, which has low bulk density and melt index and is not liable to break, can be produced.
Owner:CHINA PETROLEUM & CHEM CORP +1
A kind of ethylene polymerization method and polyethylene
ActiveCN107417830BStable mesoporous structureOrdered mesoporous structureMolecular sievePolymer science
The invention relates to the field of polymerization reactions and discloses an ethylene polymerization method and polyethylene produced therefrom. The ethylene polymerization method includes the steps of: in the presence of a catalyst, polymerizing ethylene under polymerization reaction conditions, wherein a catalyst contains a spherical zeolite mesoporous composite material and magnesium salt and / or titanium salt supported thereon. The spherical zeolite mesoporous composite material contains zeolite and a mesoporous molecular sieve material having a three-dimensional cube-cage pore structure. The invention also discloses polyethylene produced through the method. By means of the ethylene polymerization method, a polyethylene product being low in bulk density and melt index and being not liable to break can be produced.
Owner:CHINA PETROLEUM & CHEM CORP +1
Spherical zeolite mesoporous composite material and supported catalyst, preparation method and application thereof, and olefin polymerization method
ActiveCN106554432BStable mesoporous structureOrdered mesoporous structureMolecular sieveOlefin polymerization
The invention relates to a spherical zeolite mesoporous composite material, a preparation method of the spherical zeolite mesoporous composite material, the spherical zeolite mesoporous composite material prepared from the method, a supported metallocene catalyst containing the spherical zeolite mesoporous composite material, a preparation method of the supported metallocene catalyst, a supported metallocene catalyst prepared from the method, an application of the supported metallocene catalyst to alkene polymerization, and a method for polymerizing alkene. The spherical zeolite mesoporous composite material contains zeolite and a mesoporous molecular sieve material with a three-dimensional channel structure. The supported metallocene catalyst taking the provided spherical zeolite mesoporous composite material as a supporter has high catalytic activity in an alkene polymerization reaction.
Owner:CHINA PETROLEUM & CHEM CORP +1
A preparation method of silica gel pillared mesoporous biomass carbon solid sulfonic acid
ActiveCN106914258BHigh yieldHigh sulfonic acid contentPhysical/chemical process catalystsInvert sugar productionFiberSucrose
The invention provides a method for preparing silica gel pillared mesoporous biomass carbon solid sulfonic acid (SiO2-BC-SO3H) using lignocellulosic biomass, and a method for using it to catalyze the hydrolysis of sucrose to prepare glucose. The preparation of SiO2‑BC‑SO3H includes thermal carbonization of biomass or dehydration and carbonization of concentrated sulfuric acid, boiling water swelling, acidic silica sol intercalation, heating (350°C) dehydration in nitrogen, and sulfonation of concentrated sulfuric acid. The present invention confirms that the silica gel content of SiO2-BC-SO3H prepared through the above steps is about 15wt%, the sulfonic acid group density is above 0.9 mmol / g, and it has an interlayer mesoporous structure. It is used to catalyze the sucrose hydrolysis reaction and shows better catalytic activity and reusability than non-porous biomass carbon solid sulfonic acid.
Owner:岳阳湘茂医药化工有限公司
Ethylene polymerization method and polyethylene
ActiveCN107417832AStable mesoporous structureOrdered mesoporous structureMolecular sievePolymer science
The invention relates to the field of ethylene polymerization, and particularly relates to an ethylene polymerization method and polyethylene produced through the method. The ethylene polymerization method includes the step of performing a polymerization reaction to ethylene under polymerization reaction conditions in the presence of a catalyst. The catalyst contains a spherical composite material and magnesium salt and / or titanium salt supported on the spherical composite material; the spherical composite material contains a mesoporous molecular sieve material having a three-dimensional cube-cage structure and silica gel. The invention also discloses polyethylene which is produced through the method. Through the method, a polyethylene product is low in bulk density and melt index and is not liable to break.
Owner:CHINA PETROLEUM & CHEM CORP +1
Polyolefin catalyst and polyolefin and their preparation method
The invention relates to the field of catalysts, and discloses a polyolefin catalyst, a polyolefin, and a preparation method of the polyolefin catalyst and the polyolefin. The method for preparing thepolyolefin catalyst comprises the following steps: (1) enabling a silicon source to contact an ammonia water solution in the presence of a template agent to obtain a mesoporous material; (2) mixing the mesoporous material with silica gel and attapulgite, then sequentially carrying out filtration washing, ball milling, pulping and spray drying on the mixed materials, so as to obtain a spherical double-mesoporous attapulgite composite carrier; and (3) in the presence of inert gas, impregnating the spherical double-mesoporous attapulgite composite carrier in a catalyst mother liquor containing amagnesium salt and / or a titanium salt, and then sequentially carrying out filtration and drying, wherein the filtering washing in the step (2) are carried out in a ceramic membrane filter, and the content of sodium ions in the mixed material after the filtering washing is not higher than 0.2 wt% in terms of sodium element, and the content of the template agent is not higher than 1 wt%. The methodis efficient, simple, energy efficient and environmentally friendly.
Owner:CHINA PETROLEUM & CHEM CORP +1
Spherical double mesoporous attapulgite composite carrier and its preparation method and application
ActiveCN108929393BSimple mesoporous structureStable mesoporous structurePtru catalystCross-flow filtration
The invention relates to the field of catalysts, and discloses a spherical double mesoporous attapulgite composite carrier, a preparation method and application thereof. The preparation method for thespherical double mesoporous attapulgite composite carrier comprises the following steps: (1) in the presence of an template, a silicon source is allowed to be in contact with an ammonia aqueous solution to obtain a mesoporous material; (2) water glass is allowed to be in contact with an inorganic acid solution to obtain silica gel; and (3) the mesoporous material, the silica gel and attapulgite are mixed, and then the mixed material is filtered and washed, the washed material is subjected to ball milling, the ball-milled material is pulped, and the pulped material is spray-dried, wherein filtering and washing in the step 3 are conducted in a ceramic membrane filter, the content of sodium ions in the filtered and washed material is not higher than 0.2 wt.% in terms of sodium element, and the content of the template is not higher than 1 wt.%. The ceramic membrane filter used in the method adopts cross-flow filtration, which has high separation efficiency and simplicity, and the spherical double mesoporous attapulgite composite carrier does not need to be calcined again later to remove the template, thus saving energy and protecting environment.
Owner:CHINA PETROLEUM & CHEM CORP +1
A kind of copper-based antibacterial masterbatch and preparation method thereof
ActiveCN109097856BHigh temperature resistantStable mesoporous structureMonocomponent polyolefin artificial filamentMonocomponent polyesters artificial filamentFiberSpinning
The invention relates to a copper-based antibacterial masterbatch and a preparation method thereof. The preparation method comprises the steps of mixing a soluble cuprous salt with water, adding mesoporous zirconium silicate to perform immersion adsorption to obtain a mixture; mixing and adding thiosulfate, metaphosphate and water into the obtained mixture, performing drying after the reaction, and obtaining cuprous ion-loaded zirconium silicate powder; mixing a carrier resin, a dispersing agent, a processing aid and the cuprous ion-loaded zirconium silicate powder and then performing extrusion pelleting, and obtaining the copper-based antibacterial masterbatch. A fiber obtained according to a conventional spinning process by the copper-based antibacterial masterbatch obtained through themethod has excellent antibacterial property and not only has good oxidation resistance, but also has excellent washing resistance, the preparation method is simple and convenient to operate, efficient, low in cost and lasting in effect and has a broad application prospect.
Owner:晋大纳米科技(厦门)有限公司
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