138results about How to "High pore volume" patented technology

The invention relates to the technical field of catalysts for gas purification, in particular to a hierarchical pore metal-based catalytic adsorbent as well as a preparation method and application thereof. The invention discloses an integrated preparation method combining a sol-gel method and a template method, which comprises the following steps of: adding a template agent before forming gel, adding a proper amount of ammonia water in an aging process, accurately controlling other reaction conditions and a raw material ratio, and controlling a spatial confinement effect of the template method and a chemical reaction in a sol-gel process to obtain a sol-gel composite material. The morphology and size of the catalytic adsorbent can be accurately regulated and controlled, the hierarchical pore metal-based catalytic adsorbent with a microporous structure as a main material and mesopores and macropores as coexistence is finally prepared, the hierarchical pore structure provides rich adsorption sites and catalytic activity centers, and the hierarchical pore metal-based catalytic adsorbent has high adsorption capacity, high selectivity, good catalytic activity, good stability and easy regeneration.

The invention discloses a novel mercaptan removal catalyst as well as a preparation method and application thereof, the catalyst takes potassium-containing solution modified activated carbon as a carrier and one or a combination of more of CH3COOCs, CH3COOK, Cs2CO3 and Rb2CO3 as an active component, and the mass ratio of the active component substance to the modified activated carbon is 3-5%. The preparation method comprises the following steps: (1) modifying activated carbon by using a potassium-containing solution with the concentration of 15-20%, soaking the activated carbon for 2-4 hours by using the potassium-containing solution, then cleaning the activated carbon by using deionized water until the pH value is weakly alkaline, and drying the activated carbon for later use; (2) carrying out vacuum drying on the modified activated carbon at a certain temperature, and dipping a certain amount of active component-containing solution at 20-60 DEG C for 4-12 hours; and (3) carrying out vacuum drying on the active carbon impregnated with the active component, and roasting under the protection of N2 to obtain the mercaptan removal catalyst. The preparation method is simple, the prepared mercaptan removal catalyst has the characteristics of large specific surface and pore volume and the like, and compared with existing patents, the mercaptan removal catalyst is more favorable for maintaining the active center of the catalyst, maintaining the activity stability of the catalyst and improving the mercaptan removal rate.

The invention provides a binder for a catalytic cracking catalyst and a preparation method thereof, the binder comprises a sizing material, a curing agent and a modifier, and the curing agent is prepared from a gamma-alumina precursor, an acid and an alkyl ammonium salt through a hydrothermal reaction; the modifier is prepared by reaction of a polymeshed chelating ligand, a metal center ligand, ethanol and organic acid; the sizing material comprises a phosphorus-containing compound and an aluminum-containing compound. In the adhesive of the catalytic cracking catalyst provided by the invention, a metal center ligand composed of a multi-metal chelating ligand and a plurality of metals is introduced, under the promotion of organic acid and ethanol, a multi-metal chelate modifier can be prepared in situ in the process of preparing the adhesive, and compared with the direct use of a commercially available metal chelate, the preparation method has the advantages that the cost is low, and the efficiency is high. The in-situ prepared multi-metal chelate modifier has better water solubility, can promote the combination of the modifier and the phosphorus-aluminum sol, and has a better modification effect.

The invention provides a PtRu-based composite bifunctional catalyst and a preparation method and application thereof, the PtRu-based composite bifunctional catalyst comprises a carrier and a load loaded on the carrier, and the carrier comprises a graphitized carbon carrier; the load comprises platinum ruthenium-based metal particles and a compound with a chemical formula of HxMO3, wherein M comprises W or / and Mo. According to the PtRu-based composite bifunctional catalyst disclosed by the invention, the metal PtRu plays a role in resisting CO poisoning, and the HxMO3 plays a role of a proton acceptor, so that a hydrogen oxidation reaction is promoted. Meanwhile, the HxMO3 can strengthen a difunctional mechanism of a carbon monoxide oxidation reaction, and the CO poisoning resistance of the catalyst is improved. In addition, the graphitized carbon carrier with a specific graphite microcrystal size has good high-potential corrosion resistance and metal dispersibility, and metal agglomeration and performance degradation of the catalyst caused by high-potential corrosion of the carrier are greatly slowed down.

The invention discloses a composite saline alkali soil conditioner, which is prepared from the following ingredients in parts by weight: 30 to 40 parts of iron ion modified charcoal, 10 to 20 parts of inorganic waste residues, 5 to 10 parts of humic acid, 10 to 15 parts of modified polyacrylamide and 1 to 3 parts of auxiliary microbial agents. The modified polyacrylamide has a structure as shown in a formula A, the ratio of x to y to z is (10-15): (3-5): (2-3), and the molecular weight is 50000-120000. The composite saline-alkali soil conditioner provided by the invention is prepared by compounding the iron ion modified biochar, the inorganic waste residue, the humic acid, the modified polyacrylamide and the auxiliary microbial agent, has excellent salt reduction and carbon sequestration capabilities, reduces resource waste and environmental pollution by reusing agricultural and forestry wastes and the waste residue, and has a good application prospect. The method can be widely applied to the field of improvement of saline-alkali soil. # imgabs0 #

The invention relates to a method for preventing and controlling antibiotic and drug-resistant gene transmission in a soil vegetable system based on a charcoal-based composite material. According to the invention, agricultural waste corn straw is used as a precursor, magnetic iron and graphite phase carbon nitride are loaded through a hydrothermal reaction, and then high-temperature calcination is carried out to prepare a FeBC / g-C3N4 (short for FeBC / g-CN) biochar composite material which is used as a soil conditioner. The prepared biochar modifier is applied to polluted farmland soil to be treated, sufficient and uniform mixing is conducted, vegetable seeds are sown, illumination is provided, and a certain water content of the soil is kept, the prepared biochar modifier is simple in preparation method and application method and remarkable in effect, the reduction rate of tetracycline in soil vegetables is increased through use of the biochar modifier, and the soil quality is improved. Meanwhile, transmission of antibiotics and drug-resistant genes in a soil vegetable system is blocked and controlled.

The invention relates to a method for preparing calcium-based adsorbent particles with high CO2 adsorbability in batches through wet mixing mechanical modification, and belongs to the technical field of CO2 trapping. The preparation method comprises the following steps: adding a support material taking aluminum oxide as a main component into calcium-based powder, wherein the calcium-based powder is slaked lime or limestone; the preparation method comprises the following steps: mixing the raw materials, adding water, carrying out wet ball milling to obtain blocky pug, adding the blocky pug into a pug mill, carrying out pug milling to obtain homogeneous blocky pug, adding the blocky pug into an extruder, carrying out extrusion to obtain strips, cutting the strips into particles, drying the particles, and calcining the particles to obtain the calcium-based adsorbent particles. The invention provides a method for batch preparation of calcium-based adsorbent particles with high CO2 adsorbability through wet mixing mechanical modification, the method is based on an extrusion molding method and is combined with a wet mixing mechanical modification method, the carbon capture performance of the calcium-based adsorbent particles can be improved, and meanwhile, the method is simple and convenient in technological process, high in production efficiency and suitable for industrial production. The industrial application prospect is realized.

The invention discloses a method for preparing a core-shell structure phase hydrorefining catalyst, comprising the following contents: (1) gelling, aging and filtering a first precipitant, a sodium molybdate solution and a solution containing Ni and Si to obtain a filter cake of a first slurry, and then treating it with a mixed aqueous solution of aluminum salt and organic alcohol to obtain a mixed slurry; (2) adding a Ni-containing solution, a sodium tungstate solution, a second precipitant and the mixed slurry obtained in step (1) to a reactor containing water and an oily liquid to gel and age them to generate a second slurry; (3) filtering, drying and molding the slurry to obtain a molded product; (4) soaking the molded product in an organic acid solution, and desalting the soaked molded product to obtain a catalyst. The preparation process of the method is clean and pollution-free, and the prepared catalyst has a core-shell structure, a large pore volume and a large pore size, and is used in processes such as distillate hydrodesulfurization and denitrogenation, and has high hydrodesulfurization and hydrodenitrogenation reaction performance.

The invention provides a delaminated MCM-22 molecular sieve and a preparation method thereof. According to the method, the MCM-22 molecular sieve is delaminated by adopting a specific amine source, so that the delaminating efficiency is remarkably improved, the specific surface area of the MCM-22 molecular sieve is increased, the operation difficulty is reduced, and meanwhile, the activity of the molecular sieve is effectively maintained. By selecting different amine sources, the layered structure of the molecular sieve can be efficiently stripped, and ideal secondary pore characteristics are obtained. The method is simple and convenient to operate and excellent in stripping effect, has a good environment-friendly characteristic, and meets the requirements of modern industry for sustainable development.

The invention discloses a three-dimensional porous carbon material, a preparation method and application in adsorption of organic pollutants in a water body, and belongs to the technical field of water treatment.The preparation method comprises the steps that 1, zinc salt, 2-methylimidazole and a nitrogen source are dissolved in a methanol solution respectively, stirring reaction is conducted at the room temperature after mixing, standing is conducted, precipitates are taken, and a precursor solution is obtained; a precursor zeolite imidazate framework structure material is obtained; and 2, pyrolyzing the precursor zeolite imidazate skeleton structure material at 1100 DEG C under the protection of inert gas to obtain the three-dimensional porous carbon material. The three-dimensional porous carbon material disclosed by the invention has the advantages of large specific surface area, developed pore structure, abundant nitrogen-containing functional groups and reusability, can provide more adsorption active sites and enhance the electrostatic adsorption effect, and shows excellent adsorption performance and anti-interference capability on perfluorinated compounds, benzene series (such as benzene) and chlorinated organic compounds (such as parachloroaniline).

The present invention relates to the technical field of nanomaterials, and in particular to a drug-loaded mesoporous silica sustained-release system and a preparation method thereof. Firstly, mesoporous silica is prepared by a soft template method, and then the drug is loaded on the mesoporous silica by an impregnation method. Then, the drug-loaded mesoporous silica is coated with chitosan. The prepared drug-loaded mesoporous silica sustained-release system has pH responsiveness, can achieve long-term sustained-release of drugs, and can maximize the therapeutic effect of the drugs.

The invention discloses a self-supporting carbon electrode based on a wood-bamboo material, a preparation method of the self-supporting carbon electrode and application of the self-supporting carbon electrode in manufacturing of a supercapacitor electrode. The preparation method comprises the following steps: (1) fully carbonizing wood and bamboo chips with through pores in an inert atmosphere to obtain wood and bamboo carbon chips; (2) soaking foamed nickel in a solution containing cobalt acetate and nickel acetate, then taking out and airing, wrapping the wood-bamboo carbon sheet, and extruding the foamed nickel under the pressure of 5-15kN / m < 2 > to enable the foamed nickel to be in full contact with all the surfaces of the wood-bamboo carbon sheet; and (3) fixing the foamed nickel-coated wood-bamboo-carbon sheet obtained in the step (2) on a first conductive support as a working electrode, placing the working electrode, a counter electrode and a reference electrode in a molten salt electrolyte in an inert atmosphere for electrolysis, applying a voltage of-2.1 to-2.3 V to the working electrode, carrying out electrolysis for 8-12 hours to realize pore forming and graphitization, and after the electrolysis is completed, taking out the foamed nickel-coated wood-bamboo-carbon sheet. And taking out the wood-bamboo carbon sheet sample from the foamed nickel, washing and drying to obtain the self-supporting carbon electrode.

The invention relates to microporous carbon as well as a preparation method and application thereof. The microporous carbon consists of intercommunicated micropores and locally ordered pore walls. Biomass is used as a precursor, and the microporous carbon with high specific surface area, high micropore proportion and high electron conductivity is obtained by combining oxidizing atmosphere pre-carbonization, chemical activation and transient high-temperature treatment. The specific surface area of the obtained microporous carbon is greater than 1800m < 2 > / g, the average pore size is less than 2nm, the total pore volume is 0.8-1.1 cm < 3 > / g, and the micropore proportion is greater than or equal to 90%. The microporous carbon is prepared by adopting cheap raw materials and a simple method, the energy consumption is low, the cost is low, the period is short, and large-scale production is facilitated.

The invention provides a preparation process and application of rock sugar syrup, and belongs to the technical field of food production and processing. The purified high fructose corn syrup, purified mogroside and other high-purity components are used, the impurity content in the rock candy syrup raw materials is reduced, modified activated carbon is matched for adsorption treatment, the ash content of the rock candy syrup is reduced through the comprehensive effect, and meanwhile the light transmittance of the syrup is improved.

The perforating bullet comprises a perforating bullet body, an energy ring is arranged at the opening end of the perforating bullet body, the energy ring can conduct secondary burning and explosion on a perforation channel after the perforating bullet body is shot into the perforation channel, the energy ring comprises a shell made of fluoropolymer materials and a thermite filling layer, the shell is arranged in an annular shape, and the thermite filling layer is arranged in the shell. The shell is filled with the thermite filling layer, and the outer wall of the opening end of the perforating bullet body is sleeved with the shell. According to the utility model, the energy ring is arranged at the opening end of the perforating bullet body, so that during normal perforation, secondary detonation and energy release are carried out on the interior of a perforation channel, and the effects of increasing the volume of the channel, increasing cracks of the perforation channel and cleaning the channel are achieved.

The invention belongs to the technical field of iodine adsorption materials, and provides a method for modifying a pore structure of an agricultural waste biochar material, a modified porous biochar adsorbent and application of the porous biochar adsorbent. Agricultural wastes are crushed and sieved, the obtained biomass is mixed with potassium hydroxide and a modified precursor aqueous solution, the mixture is dried and then subjected to a high-temperature reaction under the condition of air isolation, and the modified biochar adsorbent is obtained. And respectively washing the product with 0.1 mol / L hydrochloric acid and ultrapure water, and drying. When KOH is activated, urea is added, so that the iodine capture performance of the charcoal can be effectively promoted, the capture of gaseous iodine within 6 hours reaches 3162mg / g, and the capture amount is increased by 55% compared with that of a sample without using urea. After the dosage of KOH is optimized, the urea prepared by using walnut shells, apricot shells, durian shells, sunflower discs, corn straws, corncobs and other biomass as precursors achieves similar effects in assisting the biochar, and it is proved that urea addition significantly promotes the biochar iodine capture performance. And theoretical support is provided for removal and recovery of gas-liquid radioactive iodine.

The invention discloses a preparation method of a bifunctional catalyst for pyridine base production, which comprises the following steps: dissolving a double-template agent in deionized water according to a fixed mass ratio, dropwise adding a silicon source solution and a NaOH solution into a double-template agent solution, adding a mixed solution of a zinc source and an aluminum source, stirring at room temperature to form gel, and drying at room temperature to obtain the bifunctional catalyst for pyridine base production. Transferring the prepared gel into a high-pressure reaction kettle, pressurizing, heating to a supercritical state, treating, taking out a sample, drying in a drying box, calcining the dried sample in a muffle furnace, removing the double template agent to obtain the Zn / Al-MCM-41 catalyst with double functions, and catalyzing formaldehyde, acetaldehyde and ammonia to synthesize pyridine base by using the Zn / Al-MCM-41 catalyst. Formaldehyde, acetaldehyde and ammonia are added into a reactor according to a molar ratio, a Zn / Al-MCM-41 catalyst is added at the same time for a catalytic reaction, and the catalytic activity and selectivity are improved by using a bifunctional catalyst for the catalytic reaction.

The invention discloses a preparation method of bryophyte-based full-microporous carbon. The preparation method comprises the following steps: 1) simply chopping bryophyte and then naturally airing the bryophyte; 2) dipping the naturally aired bryophyte in a potassium hydroxide solution, then fishing out and naturally airing again; (3) firing the soaked and naturally aired bryophyte in a protective atmosphere to obtain primary charcoal; and 4) washing the primary charcoal with a hydrochloric acid solution and water until the primary charcoal is neutral to obtain activated carbon with the micropore content of 100%, namely the bryophyte-based full-micropore charcoal. According to the preparation method, the bryophyte with high water content serves as a carbon source, the carbon material with the micropore content being 100% is obtained through firing, the produced carbon has the advantages of being large in specific surface area, high in pore volume, high in nitrogen and oxygen doping level and the like, and when the carbon is applied to the capacitive energy storage material, high specific capacitance can be kept under the high-rate charging and discharging conditions. The method provided by the invention has the advantages of stable raw material supply, low raw material and production cost, simplicity in operation and easiness in large-scale production when being used for producing the carbon material.

The invention discloses a desulfurization, denitrification and dust removal process for low-sulfur flue gas, belongs to the technical field of desulfurization and denitrification, and aims to solve the problems that gas molecules are not easy to diffuse and adsorb on particle surfaces in a gas desulfurization and denitrification project by using a combined desulfurization and denitrification adsorbent in the prior art; the sulfur capacity, the nitrate capacity, the specific surface area and the desulfurization and denitrification efficiency of combined desulfurization and denitrification need to be further improved. The method comprises the following steps that after mechanical dust in low-sulfur flue gas is filtered through a dust remover, the temperature is reduced to the room temperature, and pretreated waste gas is obtained. Porous high-iron ash is modified through an alkali magnetic method, activated carbon is prepared through activation and modification through an alkali dissolution method and serves as a base material, an adhesive is added, granulation is conducted, and the pretreated waste gas is obtained. The sulfur capacity, the nitrate capacity and the specific surface area of the combined desulfurization and denitrification adsorbent are improved, the desulfurization and denitrification efficiency is improved, and emission of pollutants in sintering flue gas is reduced.

The present invention relates to the field of biochar materials, and in particular to a biochar material and a preparation method and application thereof. The present invention provides a method for preparing a biochar material, characterized in that it comprises the following steps: S101 obtaining a first mixed solution; S102 obtaining a first precursor; S103 obtaining a second precursor; S104 obtaining a first material; S105 obtaining the biochar material. The biochar material prepared by the present invention can perform directional adsorption on pigments (such as lutein and chlorophyll) and is suitable for application to QuEChERS pretreatment.

The application discloses a high-strength, large-pore-volume phosphorus-containing binder, characterized in that the binder comprises a glue, a curing agent and a modifier; the glue comprises a phosphorus-containing compound and an aluminum-containing compound; the curing agent comprises a gamma-aluminum oxide precursor, an acid and an alkylammonium salt, and the modifier is a metal chelate; wherein the colloidal solubility index of the gamma-aluminum oxide precursor is less than or equal to 50%; and the modifier is reacted with the glue in a high-shear dispersion emulsifier. The phosphorus-containing binder provided by the application, in combination with a conventional method, can obtain a catalytic cracking catalyst which, on the basis of high molecular sieve content and large pore volume, still has high wear resistance.

The invention provides an environment-friendly snow-melting agent and a preparation method thereof, and the snow-melting agent is mainly prepared from the following raw materials in parts by mass: 100-200 parts of natural zeolite, 1500-1600 parts of ammonium sulfate, 100-150 parts of a corrosion inhibitor, 200-300 parts of garden waste, 100-150 parts of corncob particles, 100-200 parts of coal gangue, 1-5 parts of pulverized coal, 1-4 parts of polyacrylamide, 1-3 parts of concentrated sulfuric acid and 1000-2000 parts of water. According to the snow-melting agent, ammonium sulfate is used as a main snow-melting substance, a solvent in a pore channel in zeolite is increased in a mode of modifying natural zeolite through ammonium sulfate, the adsorption capacity and the loading capacity of snow-melting components are improved, the snow-melting capacity is improved by combining ammonium sulfate, and meanwhile harm caused by chloride can be avoided; therefore, the environment-friendly snow-melting agent is prepared.

This invention relates to the field of catalyst preparation, and discloses a methanation catalyst, its preparation method and application, and a methanation method. The methanation catalyst contains a catalyst support and a nickel active component. Based on the total mass of the methanation catalyst, the catalyst support comprises 80-90 wt% by mass, and the nickel active component (calculated as oxide) comprises 10-20 wt% by mass. The average mechanical strength of the catalyst support is 35-80 N / mm. The particle mechanical strength dispersion coefficient of the catalyst support is in the range of 0-0.55. The catalyst support has a large specific surface area and pore volume. Combined with the supported nickel active component, it can improve the catalytic activity and selectivity of the catalyst. Simultaneously, the catalyst has high average mechanical strength, resulting in high CO conversion and methane selectivity in the methanation reaction.

The present invention discloses a low-temperature denitration catalyst and a preparation method thereof. The catalyst comprises the following raw materials by weight: 60-70 parts of nano titanium dioxide, 0.5-2.5 parts of zirconium oxide, 0.5-3 parts of modified graphene, 0.02-0.1 parts of chloroiridic acid, 5-8 parts of ammonium heptamolybdate, 0.5-2.5 parts of ammonium metavanadate, 2-10 parts of cerium nitrate, 3-8 parts of polypropylene fiber, 1-4 parts of ultrafine activated carbon, 2-6 parts of aluminum sol, 1.5-5 parts of polyethylene oxide, and 1.2-3.5 parts of aminocellulose. The denitration catalyst prepared by the present invention has the characteristics of large specific surface area, high porosity, high low-temperature catalytic activity, strong anti-poisoning ability, high strength, etc., and is particularly suitable for use in the low temperature range of 100-180°C, and has broad application prospects.

The invention provides a synthetic method of p-tert-butylcatechol, and belongs to the field of industrial catalysis. The preparation method comprises the following steps: mixing and stirring catechol, a composite catalyst and a mixed solvent A for 20-40 minutes, introducing inert gas to expel air, then introducing isobutene, reacting for 4-6 hours in an environment of 110-130 DEG C, filtering and separating to obtain a reaction solution and the composite catalyst, and purifying the reaction solution to obtain the p-tert-butylcatechol. When the quaternary ammonium salt chitosan is swelled, a fluffy net-shaped structure is formed, and acidic sites of the hierarchical pore beta zeolite are gradually exposed; the cerium dioxide and the tungsten trioxide bring more and stronger acid centers, the tungsten trioxide enhances the surface acidity of the cerium dioxide, and meanwhile, cerium and tungsten have a synergistic effect, so that the catalytic activity of the composite catalyst is further improved.

The present invention discloses a bulk hydrorefining catalyst and a preparation method thereof. The bulk hydrorefining catalyst of the present invention has a core phase of an amorphous composite oxide containing molybdenum, nickel and silicon, and a shell phase of an amorphous composite oxide containing tungsten, nickel and aluminum. The preparation method is as follows: (1) a first precipitant, a sodium molybdate solution and a solution containing Ni and Si are subjected to a first gelling reaction and a first aging to obtain a first slurry containing Ni, Si and Mo; (2) water and an oily liquid are added to a reactor, and then a solution containing Ni and Al, a sodium tungstate solution, a second precipitant and the first slurry are subjected to a second gelling reaction and a second aging to generate a second slurry; (3) the second slurry is aged and molded; (4) the molded product is subjected to a desalting treatment to obtain a catalyst. The catalyst prepared by the present invention has a large pore volume and pore diameter, has a high hydrodesulfurization and hydrodenitrogenation reaction performance, can avoid excessive cracking of diesel fractions, and has good raw material adaptability, and can process inferior distillate oil raw materials.

The utility model discloses a negative pressure container with a control unit. The negative pressure container comprises a bottle body, a valve and a carrier material filled in the bottle body, the carrier material comprises graphene, the negative pressure container further comprises a temperature sensor, a heating element and a control unit, and the control unit controls the heating element based on a signal from the temperature sensor and a signal from a pressure sensor. When the electronic gas is supplied to the gas system, heating by means of the heating element facilitates unloading of the electronic gas from the carrier material and discharging of the electronic gas from the negative pressure container. In the process, the heating element is controlled by monitoring the temperature and the pressure in the negative pressure container, so that the safety of electronic gas unloading can be ensured at a relatively high unloading rate.

The present invention discloses an SCR denitration process applied to the treatment of phenylenediamine waste gas, which belongs to the technical field of industrial waste gas treatment and comprises the following steps: injecting a reducing agent into the flue gas upstream of the catalyst, and performing SCR denitration using a modified kaolin-supported vanadium-titanium catalyst. The present invention provides an SCR denitration process applied to the treatment of phenylenediamine waste gas, which can significantly improve the denitration efficiency in the treatment of phenylenediamine waste gas by introducing a modified kaolin-supported vanadium-titanium catalyst prepared by a specific method into the SCR denitration process, and the denitration efficiency can reach 98.3%, which greatly reduces the emission of NOx in the production of phenylenediamine, and effectively improves the quality of the surrounding environment. The catalyst introduced by the present invention not only has good water resistance and sulfur resistance, but also presents good low-temperature catalytic activity and a wide temperature window, and at the same time well avoids the situation where other particulate matter and other sulfides cause catalyst deactivation and poisoning.

The invention provides a carrier for a metallocene catalyst, a preparation method of the carrier, the metallocene catalyst and a preparation method of the metallocene catalyst. The preparation method of the carrier for the metallocene catalyst comprises the following steps: placing silicon dioxide aerogel microspheres in a container for microwave treatment; in the microwave treatment process, hot nitrogen is introduced into the container to purge the silicon dioxide aerogel microspheres; and stopping the microwave treatment, vacuumizing the container, and then introducing normal-temperature nitrogen to purge the silicon dioxide aerogel microspheres, thereby obtaining the carrier for the metallocene catalyst. According to the invention, the silicon dioxide aerogel microspheres are used as the carrier to load the metallocene catalyst, and the silicon dioxide aerogel with high specific surface area and high porosity is used as the carrier, so that the loading capacity of the metallocene compound is improved.