28results about How to "Improve mass transfer effect" patented technology

The invention discloses an anion exchange membrane electrode and a preparation method and application thereof, and belongs to the technical field of new energy material and catalytic electrode preparation, the method comprises the following steps: S1, preparing an anode catalyst slurry comprising a hydrophobic covalent organic framework material, an anode catalyst, an anion exchange ionomer and a solvent; s2, preparing a cathode catalyst slurry of which the components comprise a cathode catalyst, an anion exchange ionomer and a solvent; and S3, respectively spraying or coating the anode catalyst slurry and the cathode catalyst slurry on two side surfaces of an anion exchange membrane or a gas diffusion layer, and carrying out heat treatment to obtain the anion exchange membrane electrode. The method provided by the invention can solve the problems of large gas-liquid-ion three-phase mass transfer resistance, easy shielding of active catalytic sites by ionomers and unbalanced water management in the membrane electrode assembly in the existing AEMWE device.

This invention discloses a fuel cell and its application. The bipolar plate includes a connecting structure with a cross-flow channel and a narrowing structure. The hydraulic diameter of the narrowing structure is smaller than that of the non-narrowing structure. The non-narrowing structure of the flow channel has a connecting structure corresponding to at least one of two adjacent ridges. Furthermore, the resistance of the gas in the first direction through the narrowing structure is R1, and the resistance in the second direction through the connecting structure is R2, where R1 / R2 ≥ 20. The first direction is the flow direction of the gas entering the flow field, and the second direction is perpendicular to the first direction. Therefore, the fuel cell bipolar plate provided by this invention can more fully utilize the pressure drop generated by the narrowing structure to create a larger pressure difference between adjacent flow channels. This allows a smaller flow field pressure drop to create the same or higher level of under-ridge gas convection and permeation effect within the gas diffusion layer or membrane electrode, thereby improving the under-ridge mass transfer and drainage performance of the fuel cell.

This invention discloses a method for separating a mixture of isobutanol / n-butanol / m-xylene using a high- and low-pressure dual-tower thermally integrated distillation system. The method employs pressurization to break the azeotropic reaction, achieving the separation of the n-butanol / isobutanol / m-xylene mixture. Using the overhead steam from the high-pressure tower as the heat source for the reboiler in the low-pressure tower not only yields high-purity isobutanol, n-butanol, and m-xylene products but also achieves thermal integration, reducing energy consumption and improving energy utilization efficiency. Furthermore, the composite tower trays with sieve and packing exhibit excellent hydrodynamic properties and uniform gas-liquid phase distribution. The sieve acts as a liquid redistributor in the packing layer below, uniformly distributing the liquid phase. The packing layer ensures uniform gas distribution, improving the gas phase distribution on the trays and preventing short-circuiting by concentrating the gas phase through the central sieve holes, thus enhancing mass transfer on the trays. The packing layer essentially eliminates the entrainment problem between trays, resulting in excellent hydrodynamic properties.

The utility model belongs to the technical field of industrial wastewater treatment, and particularly relates to a steam stripping dephenolization system, which comprises a steam stripping section positioned at the upper section of a closed tower, and a plurality of water collecting tanks arranged below the steam stripping section; the regeneration section is positioned at the lower section of the closed tower, and a steam channel is arranged below the regeneration section; the spraying system comprises a spraying assembly I, a spraying assembly II and a spraying assembly III; the spraying assembly I is positioned above the steam stripping section and is connected with the preheater through a pipeline; the spraying assembly II is positioned above the regeneration section; and the spraying assembly III is positioned in the filler layer of the regeneration section.

The present application belongs to the technical field of high-value utilization of mineral resources and water treatment adsorption separation materials, and relates to a sepiolite-based lithium ion imprinting polymer, a preparation method and application in adsorption and separation of lithium ions in low-grade brine. The sepiolite is activated and pretreated, mixed with a lithium ion template, a functional monomer, a crosslinking agent and an initiator in a solvent system, and then subjected to a polymerization reaction, elution of the template ion, filtration, washing and drying to obtain the sepiolite-based lithium ion imprinting polymer. The sepiolite-based lithium ion imprinting polymer has good structural stability, lithium ion recognition selectivity and cyclic regeneration performance, and is suitable for efficient enrichment and separation of lithium ions in low-grade brine.

The invention belongs to the technical field of chemical engineering separation, and provides a natural eutectic solvent and a preparation method and application thereof, the natural eutectic solvent comprises the following components: caprolactam, citric acid and water; wherein the molar ratio of caprolactam to citric acid is (1-4): (1-2); the mass of the water is 20-40% of the sum of the mass of the caprolactam and the mass of the citric acid. By introducing water as a third component, the viscosity of the system is effectively reduced, the mass transfer performance is improved, and the denitrification efficiency is improved. The eutecticevaporate solvent provided by the invention can provide more reaction sites, has relatively strong removal capacity and selectivity on nitrogenous organic matters, and can realize efficient denitrification under mild conditions. The natural deep-eutectic solvent prepared by the preparation method disclosed by the invention is applied to removal of basic nitrides of oil products, and has the advantages of short time consumption and low dosage, namely high removal efficiency.

Micro-droplet double-strengthened liquefied gas desulfurization reactor, reaction system and reaction method relate to the field of liquefied gas desulfurization treatment, the desulfurization reactor has liquefied gas liquid discharge port in the upper part and amine liquid discharge port in the lower part, the desulfurization reactor has amine liquid area in the lower part, liquefied gas liquid area in the upper part and mixing area formed by the junction of amine liquid area and liquefied gas liquid area, the liquefied gas liquid area is provided with amine liquid nozzle capable of spraying amine liquid droplets, the amine liquid area is provided with liquefied gas liquid nozzle capable of spraying liquefied gas droplets, the pressure environment in the desulfurization reactor is 1.6 MPa or more, so as to keep the liquefied gas liquid entering the desulfurization reactor in liquid phase state, the liquefied gas droplets are desulfurized and mass transfer in the amine liquid area and flow upwards, sequentially contact and react with amine droplets in the mixing area and amine droplets in the liquefied gas liquid area, and complete the desulfurization treatment of liquefied gas. The present application is used to solve the problems of slow desulfurization speed and poor desulfurization effect of hydrogen sulfide in liquefied gas in the removal process.

The utility model relates to the technical field of extraction equipment, and particularly discloses novel packed tower extraction equipment, which comprises a tower body, a top cover arranged at the upper end of the tower body, a support ring fixedly connected inside the tower body, a first packing cylinder arranged above the support ring, a first cylinder cover arranged above the first packing cylinder, and a second cylinder cover arranged above the first packing cylinder, the upper end of the first barrel cover is fixedly connected with a supporting barrel, a second filling barrel is arranged above the supporting barrel, and a second barrel cover is arranged above the second filling barrel; the two-phase mass transfer efficiency is greatly improved through a liquid film or dispersed liquid drops formed on the surface of the filler, liquid is continuously discharged after extraction, stable operation of equipment is ensured through cooperation with the synergistic effect of a sealing ring, a pressing ring and a limiting column, continuous production is achieved, the mass transfer effect is enhanced, and the pressure of the pressing ring on the second barrel cover is relieved; and the second barrel cover, the second filling barrel and other components are sequentially taken down, and after new filler is filled, reverse operation and installation are conducted, in this way, the filler installation structure is optimized, and rapid replacement and maintenance of the filler are facilitated.

The utility model particularly relates to a short-cut nitrification-anaerobic ammonia oxidation integrated reactor. The reactor comprises a short-cut nitrification area, a sponge iron area, an anaerobic ammonia oxidation area and an autotrophic denitrification area. According to the growth characteristics of different bacteria, environment control is performed in a targeted manner, so that the different bacteria are in respective optimal growth conditions, the activity of the bacteria is ensured, and the system is more efficient. In addition, nitrite nitrogen in the reactor is consumed while being generated, the concentration of the nitrite nitrogen in the system is low, and the problem of inhibition of high nitrite nitrogen concentration on anaerobic ammonium oxidation bacteria is solved. According to the reactor, the short-cut nitrification reaction and the anaerobic ammonia oxidation reaction are arranged in the same system, the anaerobic ammonia oxidation reaction can supplement needed alkalinity for the short-cut nitrification reaction, consumption of extra chemical agents is reduced, cost is saved, and the reactor has high practical value.

This invention discloses a process and reaction system for producing 8-hydroxyquinoline, belonging to the field of chemical equipment and process technology. The invention uses o-aminophenol, o-nitrophenol, and acrolein as raw materials, p-toluenesulfonic acid as a catalyst, and a benzene solvent system to prepare 8-hydroxyquinoline. This solves the problems of high waste salt content, acrolein polymerization, large footprint, and unstable product indicators in current 8-hydroxyquinoline production processes. The process for producing 8-hydroxyquinoline in this invention has the advantages of simple equipment operation, stable operation, high production efficiency, high product purity, and environmental friendliness.

The invention discloses a corrosion parameter adaptive adjustment method and system for wafer wet etching, and relates to the technical field of wafer wet etching, and the method comprises the steps: carrying out the global optimization based on the geometric features of a wafer and wet etching, and obtaining the optimized initial local electrowetting voltage and initial programming type laser scanning path parameters; acquiring a gas-liquid interface curvature radius and a by-product concentration gradient; obtaining an interface transmission impedance value by using a transmission impedance calculation model; inputting the interface transmission impedance value into a corrosion parameter control model, and outputting a local electrowetting voltage adjustment amount and a programmable laser scanning path parameter adjustment amount; and carrying out adaptive adjustment on the initial local electrowetting voltage and the initial programming type laser scanning path parameter. The technical problems that in the prior art, corrosion parameters are difficult to accurately control, real-time performance and adaptability are lacked, corrosion uniformity is poor, the mass transfer effect is not ideal, and the overall process quality is not high are solved.

The invention discloses a supergravity and multi-dimensional advanced oxidation wastewater treatment device, which comprises a tank body, and a filler mechanism, an oxidation mechanism and a photocatalysis mechanism are installed in the tank body, and relates to the technical field of wastewater treatment devices. According to the supergravity and multi-dimensional advanced oxidation wastewater treatment device, through multi-dimensional advanced oxidation equipment composed of electrocatalytic oxidation, photocatalysis and ozone oxidation and mutual promotion of multi-dimensional advanced oxidation, more advanced oxidation factors are generated, the wastewater treatment effect is improved, and meanwhile, the wastewater treatment effect is improved. A coating layer plate made of a titanium dioxide material is arranged outside a filler layer, and the collision frequency of reactants is increased by utilizing supergravity, so that the reaction rate is accelerated, the mass transfer effect is enhanced, wastewater to be treated and advanced oxidation factors can be fully contacted and reacted, and liquid on the surface of a catalyst fixed bed is thinned; and the loss rate of exciting light reaching the surface of the catalyst is reduced.

The utility model discloses an LNG (Liquefied Natural Gas) decarburization, regeneration, condensation and separation integrated device which comprises an upper decarburization tower body and a lower decarburization tower body, under the interaction of the upper decarburization tower body, the lower decarburization tower body, the gas injection mechanism, the circulating decarburization mechanism and the reinforcing mechanism, the upper decarburization tower body and the lower decarburization tower body are detachably connected, maintenance and overhaul are facilitated, an annular ventilation cavity in the gas injection mechanism is matched with a nozzle, natural gas is evenly distributed in the tower body, the gas-liquid contact area is remarkably enlarged, and the gas-liquid separation effect is improved. The circulating decarburization mechanism utilizes a circulating pump body to drive a decarburization solvent to circulate, and uniform spraying is performed through a zigzag pipeline and a spray head, so that gas-liquid reverse sufficient contact is realized, the continuous and stable decarburization process is guaranteed, a decarburization net is enhanced, the gas-liquid mass transfer effect is further optimized, the decarburization efficiency is effectively improved through the overall integrated design, and the technological process is simplified; the energy consumption and the maintenance cost are reduced, and the high efficiency and the stability of LNG production are guaranteed.

The utility model relates to the technical field of fractionating tower trays, in particular to an efficient fractionating tower tray for ethyl chloroacetate rectification, which comprises a fixedly arranged upper tower drum, a liquid inlet pipe is mounted on the outer side wall of the left side of the lower part of the upper tower drum, and the tail end of the liquid inlet pipe is horizontally rightward and fixedly connected onto the outer side wall of the upper tower drum in a sealing manner; the interior of the liquid inlet pipe is communicated with an upper cavity of the upper tower drum through a liquid inlet, the outer side wall of the lower portion of the upper tower drum is sealed and movably connected to the outer side wall of the upper portion of the lower tower drum in a sleeving mode, a coaxial fluted disc is integrally formed and fixed to the outer side wall of the upper portion of the lower tower drum, and a gas-liquid mixing assembly is installed in a lower cavity of the lower tower drum. Through the structural design that the upper tower drum is sleeved with the lower tower drum and the lower tower drum can rotate circumferentially, and in combination with the arrangement of the vertical scrapers, the vertical scrapers can rotate along with the lower tower drum to scrape the liquid inlet, so that the materials near the liquid inlet are prevented from being accumulated and blocked, the liquid is ensured to smoothly enter the upper tower drum, and the stability and continuity of the fractionation process are maintained.

This invention discloses a method for preparing sodium lignin sulfonate-based porous carbon and its application, belonging to the field of efficient resource utilization of biomass and water treatment technology. The method selects sodium lignin sulfonate waste from pulp mills as a carbon source, and processes it to obtain sodium lignin sulfonate powder; the sodium lignin sulfonate powder is then blended with SiO2 and / or HCO2K and activated to obtain sodium lignin sulfonate-based porous carbon; this carbon is then applied to the removal of antibiotics from water. This invention fully utilizes the waste sodium lignin sulfonate from pulp mills, realizing the recycling of waste, increasing the added value of waste, and the preparation process is simple, pollution-free, environmentally friendly, and in line with green chemistry principles.

The utility model relates to the high polymer material production technical field with gas as raw material, concretely is a kind of production polyketone with stirring mechanism and reaction kettle. Including main shaft and with the main shaft connection a group of upper stirring rod, at least upper hollow tube in main shaft, with the lower end of upper hollow tube corresponding place is provided with the hollow crossbeam that is communicated with upper hollow tube, at least part upper stirring rod is connected with hollow crossbeam, and upper stirring rod is provided with the vent line that is communicated with hollow crossbeam, vent line is provided with gas outlet hole;Upper hollow tube is in and is provided with the first air inlet pipe of the first check valve of lower end with first. The utility model passes through the upper and lower passage of main shaft in reaction kettle and makes the air inlet pipe and stirring assembly combination, and the gas to be reacted can be directly passed into the bottom of the liquid to be reacted, so that it is fully contacted, and then the cooperation of upper stirring rod and lower stirring rod, thereby the effect of gas-liquid mass transfer is improved, the reaction efficiency is improved, and the polyketone product is effectively prevented from walling and caking in kettle.

The present application relates to the technical field of hair care essential oil, and particularly relates to a hair care essential oil composition containing rosemary leaf oil and mint oil. The hair care essential oil composition contains 75-80 parts of cyclopentasiloxane, 8-11 parts of dimethicone, 8-11 parts of isohexadecane, 0.1-0.5 parts of tocopheryl acetate and 2.6-3.6 parts of plant essential oil by mass. The plant essential oil contains essential oil A and essential oil B. The essential oil A contains rosemary leaf oil and mint oil, and the essential oil B is prepared from pomelo pericarp, hyptis and perilla leaf by a specific process. The preparation process involves intermittent microwave treatment, cellulase enzymolysis, co-water distillation extraction and other processes. The hair care essential oil composition provided in the present application is compounded with specific plant essential oil in a traditional hair care formula, successfully endows the product with good antidandruff effect on the premise of basically maintaining the original softening care effect.

The application relates to the technical field of micro-reactors, in particular to a micro-channel reactor and a photocatalytic reaction device. The micro-channel reactor comprises a base plate, the base plate comprises a first base plate and a second base plate which can be detachably matched, the opposite surfaces of the first base plate and the second base plate are each provided with a sample inlet channel, a reaction unit communicated with the sample inlet channel and a sample outlet channel communicated with the reaction unit; the reaction unit comprises an arc-shaped channel and a micro-flow channel which are communicated with each other; a flow divider is arranged in the arc-shaped channel, and the side surface of the flow divider close to the opposite surface is lower than the opposite surface; and a photocatalyst film is arranged on the inner wall of at least one of the sample inlet channel, the arc-shaped channel, the micro-flow channel and the sample outlet channel. The micro-channel reactor provided by the application improves the mass transfer effect, the degradation efficiency and the production efficiency, reduces the cleaning difficulty and is low in energy consumption.

The application discloses a kind of pneumatic circulation self-coupling deployment FAAO sewage treatment reactor, including facultative reaction zone, anaerobic reaction zone, anoxic circulating reaction zone, self-coupling deployment reaction zone, aerobic reaction zone, sedimentation separation clarification zone and equipment operation maintenance area etc., each functional area is arranged in space and constitutes the unique S-shaped structure of the present application.The mass transfer effect of activated sludge in the reactor and the treatment efficiency are enhanced by the innovative design of the sewage treatment reactor, and the low-carbon treatment of sewage is realized from the principle and application.

This utility model discloses a hydrogen-rich water device with adjustable hydrogen-water mixing, including a pure water tank, a pure water circulation pump, an electrolyzer, a gas-water separator, and a buffer tank. The electrolyzer and gas-water separator are equipped with an anode, a cathode, and a proton exchange membrane. A motor mounted on the buffer tank drives a high-pressure hydrogen dissolving rod to move left and right. Components such as the insertion plate and assembly plate have specific connections and are equipped with sealing sleeves to prevent interference. This device has dual channels for electrolyzing water and drinking water, allowing the human body to drink different water qualities through a series of processes, improving its practicality. Furthermore, the reciprocating motion of the high-pressure hydrogen dissolving rod driven by the motor increases the contact area between hydrogen and water, forming a flow path and vortex, improving the hydrogen dissolution speed and efficiency, resulting in a more uniform hydrogen distribution, reducing concentration gradients, and improving the quality of the hydrogen-rich water and the overall quality of the device.

The application relates to the technical field of organic wastewater treatment, and discloses an automatic parameter regulation and control system for organic wastewater treatment, which comprises the following steps: collecting stress, viscosity and bubble operation state through a rheological sensor and an ultrasonic probe, quantifying boundary liquid film thickness and calculating stress relaxation time, and then constructing a time-space mismatch time constant; combining dissolved oxygen probe data to reversely deduce a real oxygen consumption rate of a microhabitat, and calculating a limit turbulent kinetic energy dissipation rate required by a tearing interface; finally, the limit turbulent kinetic energy dissipation rate is converted into a targeted gas flow, and a blow equipment is controlled after superimposing a feedforward compensation amount.

The invention relates to the technical field of nano material electrocatalysis, and discloses a gallium monatomic porous carbon confinement osmium-based ultra-small cluster electrocatalyst and a preparation method and application thereof.The electrocatalyst comprises a porous carbon substrate, gallium monatomic and osmium nanoclusters, the gallium monatomic is anchored to the porous carbon substrate in a Ga-N bond bonding mode, and the osmium nanoclusters are anchored to the porous carbon substrate in a Ga-N bond bonding mode; the osmium nanoclusters are loaded on the surface and in pores of the porous carbon substrate. The problems of uneven distribution of active sites, component loss under current driving and the like are solved through the physical confinement effect of porous carbon, and the activity and stability are improved through coupled gallium monatomic double-site synergistic catalysis. Wherein the active component has the characteristics of small size, uniform particle size, uniform distribution and the like, the active component is anchored on the substrate by utilizing the confinement effect of microporous carbon, and the problems that the catalytic performance is reduced and the like due to the agglomeration behavior of the active component caused by thermal migration when the electrocatalyst is prepared through traditional high-temperature reduction are fully solved.

This invention relates to an apparatus and method for improving process efficiency, belonging to the field of hypergravity technology. The apparatus includes a hypergravity device body and a liquid inlet and a liquid outlet disposed on the hypergravity device body; the hypergravity device body has a rotating shaft and a rotor rotatable around the rotating shaft inside; and a liquid level control mechanism is provided at the liquid outlet. The method involves controlling the liquid level inside the hypergravity device through the liquid level control mechanism, causing liquid to accumulate at the bottom, so that a dispersed liquid in the upper part and a continuous liquid in the lower part exist simultaneously inside the hypergravity device. This invention utilizes the stagnant liquid phenomenon within the hypergravity device to increase the residence time of the liquid within the device and the liquid volume fraction in the rotor and the upper cavity, thereby improving mass transfer and increasing process efficiency.

The invention discloses a supergravity deamination device which comprises a tank body, a top plate is mounted at the top of the tank body, a stirring mechanism is mounted at the top of the top plate, and a liquid spraying mechanism and a filling mechanism are mounted in the tank body. According to the supergravity deamination device, a stirring mechanism is assembled in a movable top-entry type installation mode, the device is convenient to disassemble and maintain, meanwhile, the requirement for mechanical sealing performance of the device is low, a spiral nozzle is adopted for material distribution, it is guaranteed that liquid is evenly distributed on an overflowing interface, meanwhile, a large-channel interaction interface is adopted, the device is not prone to being blocked, and the service life of the device is prolonged. The filler structure is fixed in the tank body, a stirring mechanism is adopted to simulate a supergravity environment, liquid is divided into fine liquid drops and liquid filaments through supergravity, a two-phase interaction interface and a mass transfer effect are further enhanced, meanwhile, air or steam can be adopted as an air stripping medium of the equipment, and the application scene and large-scale application of the deamination equipment are greatly improved.

The invention provides a preparation method of hexafluorophosphoric acid, which comprises the following steps: mixing an oxygen-containing phosphorus compound with anhydrous hydrogen fluoride, and reacting under the conditions that the temperature is 65-100 DEG C and the pressure is not lower than 0.4 Mpa to obtain hexafluorophosphoric acid. The preparation method can significantly improve the yield of hexafluorophosphoric acid.

The application belongs to the technical field of fuel cells, and specifically discloses a high-temperature PEMFC ordered catalytic layer structure electrode and a preparation method, which comprises the following steps: S1, preparation of a gas diffusion layer, to obtain a gas diffusion layer with a hydrophobic agent mass fraction of 15-25%; S2, preparation of an ordered catalytic layer: placing the gas diffusion layer obtained in S1 and a reaction solution in a reaction container to perform a hydrothermal reaction, performing cleaning, drying and calcination treatment after the reaction is completed, to obtain a catalyst carrier array, loading Pt on the catalyst carrier array by using a formic acid reduction method, and then coating a conductive substance, to obtain an ordered catalytic layer structure electrode. The high-temperature PEMFC ordered catalytic layer structure electrode and the preparation method have the advantages of mild preparation conditions, a simple process, low cost, a more stable structure and excellent durability of the electrode under high-temperature and phosphoric acid conditions, and significant improvement of battery performance and service life.

The invention discloses a method for extracting pectic polysaccharide rich in RG-I based on a water-containing deep eutectic solvent containing cellulase, which comprises the following steps: S1, mixing purified plant cell walls with the deep eutectic solvent containing cellulase, stirring and heating to obtain a solid-liquid mixture; s2, centrifuging the solid-liquid mixture to obtain a first supernatant and solid residues; s3, adding water into the solid residues again, centrifuging after heating and oscillating, collecting a supernatant water solution, and repeating for five times; and S4, combining the supernatant water solutions, adding alcohols, centrifuging, collecting precipitates, and carrying out decolorization treatment. The choline chloride / propylene glycol deep eutectic solvent and the cellulase are adopted to form a synergistic extraction system, the cellulase precisely degrades a cellulose skeleton, choline chloride / propylene glycol and exposed RG-I fully interact, selective release and enrichment of the RG-I structural domain are realized, the conditions are mild, high yield and low solvent residue are ensured, the process is environment-friendly, and the method is suitable for industrial production. The pectic polysaccharide product with high RG-I content can be efficiently prepared, and the method has industrial application potential.

This invention relates to an ordered macroporous polysaccharide microsphere chromatographic medium and its preparation method, belonging to the field of chromatographic medium technology. The preparation method includes the following steps: dissolving polysaccharide powder in an alkaline urea solution to obtain a polysaccharide solution; adding regular calcium carbonate whiskers as pore-forming templates to the polysaccharide solution and stirring to obtain a mixed solution; adding the mixed solution as an aqueous phase to an oil phase, forming a water-in-oil emulsion under the action of a surfactant; emulsifying for a period of time, solidifying the microspheres using an acid regeneration method and removing the calcium carbonate whiskers; using the length of the calcium carbonate whiskers as a sieving standard, sieving using a filter screen with a pore size equal to the length of the calcium carbonate whiskers; the microspheres with a size smaller than the length of the calcium carbonate whiskers are the ordered macroporous polysaccharide microsphere chromatographic medium. Compared with the prior art, the preparation process of this invention is simple, the pore structure is interconnected and uniform, and there are no narrow pore throats, significantly improving mass transfer performance, and it is expected to serve as a high-performance chromatographic medium platform-type microsphere.