1034results about "Electrodialysis" patented technology

The utility model discloses an electrodialysis device with an automatic hydraulic station, and belongs to the field of electrodialysis devices. The hydraulic cylinder is connected with the electrodialysis assembly; an oil tank; one end of the pump body is communicated with the oil tank; the inlet end of the one-way valve is communicated with the other end of the pump body, and the outlet end of the one-way valve is communicated with the hydraulic cylinder; one end of the pressure sensor is communicated with the oil tank, and the other end of the pressure sensor is communicated between the outlet end of the one-way valve and the hydraulic cylinder; one end of the electromagnetic valve is communicated with the oil tank, and the other end of the electromagnetic valve is communicated between the outlet end of the one-way valve and the hydraulic cylinder; and the controller is electrically connected with the pressure sensor and the electromagnetic valve. The utility model has the technical effects that the pressure can be automatically controlled conveniently, and the pressure can be prevented from being too large or too small.

The invention provides an alkali metal group ion selective permeable membrane, a preparation method and a lithium, rubidium and cesium extraction method and system, and the membrane is prepared by taking polyphenylene sulfide, Zr (HPO4) 2 and a high-molecular polymer adhesive as raw materials through mixing, fibration treatment and compression molding processes. Based on the weak dipole adsorption characteristic between the sulfur position of high-crystallization polyphenylene sulfide and alkali metal cations, efficient screening of monovalent alkali metal ions (Li < + >, Rb < + > and Cs < + >) and multivalent impurity ions (Mg < 2 + >, Al < 3 + > and Fe < 2 + >) is achieved, and the method can be used for extracting rubidium and cesium. The ion selective permeable membrane has excellent mechanical properties, high separation efficiency and corrosion resistance, and is low in production cost; and finally, the multiple targets of lepidolite leaching liquid impurity removal and lithium rubidium cesium synergistic extraction are achieved.

The application discloses a bipolar membrane electrodialysis device, which comprises an outer box body and further comprises a liquid inlet mechanism, a plurality of electrodialysis mechanisms and a plurality of filtering mechanisms. The filtering mechanism comprises a filtering box, a driving filtering assembly and a liquid feeding assembly. The driving filtering assembly comprises a motor installed on the top of the filtering box, the output shaft of the motor is fixedly connected with a threaded rod, the outer periphery of the threaded rod is threadedly connected with a filtering plate slidingly connected to the inner wall of the filtering box, and the bottom inner wall of the filtering box is fixedly connected with a plurality of plug rods matched with filtering holes of the filtering plate. Raw water is delivered to the inside of the filtering box through the liquid inlet mechanism, is actively filtered without turbulence through the driving filtering assembly, is delivered to the corresponding electrodialysis mechanism through the liquid feeding assembly and is further subjected to electrodialysis treatment. The filtering plate and other components are arranged to filter out the solid impurities mixed in industrial glucose acid salt, so that the bipolar membrane electrodialysis process and the bipolar membrane body are not affected.

The invention relates to a method for simultaneously preparing lithium hydroxide and sulfuric acid. The invention provides a method for simultaneously preparing lithium hydroxide and sulfuric acid, which comprises the following steps: preparing a bipolar membrane electrodialysis device which comprises a first bipolar membrane, an anion exchange membrane, a cation exchange membrane and a second bipolar membrane, and forming an acid chamber between the first bipolar membrane and the anion exchange membrane, a salt chamber is formed between the anion exchange membrane and the cation exchange membrane, and an alkali chamber is formed between the cation exchange membrane and the second bipolar membrane; a lithium sulfate aqueous solution is added into a salt chamber of the bipolar membrane electrodialysis device, a sulfuric acid aqueous solution is added into an acid chamber, and a lithium hydroxide aqueous solution is added into an alkali chamber; and discharging the desalted solution formed in the salt chamber of the bipolar membrane electrodialysis device, discharging the sulfuric acid aqueous solution formed in the acid chamber, and discharging the lithium hydroxide aqueous solution formed in the alkali chamber.

The invention discloses a method for converting lithium hydroxide into lithium carbonate. The method comprises the following steps: S1, preparing or taking a lithium hydroxide solution and a carbonate solution; s2, putting the lithium hydroxide solution and the carbonate solution into electrodialysis equipment, and carrying out electrodialysis treatment; and S3, after electrodialysis is finished, collecting a lithium carbonate solution, and sequentially carrying out lithium precipitation and solid-liquid separation on the lithium carbonate solution to obtain the battery-grade lithium carbonate. According to the method for converting lithium hydroxide into lithium carbonate disclosed by the invention, CO2 is replaced by carbonate, so that the generation of lithium bicarbonate is avoided, the lithium carbonate and the byproduct alkali liquor are directly obtained, the raw material source is wide, the preparation condition is mild, the production cost is greatly reduced, and the method has huge potential economic benefits.

The present invention relates to a monovalent selective cation exchange membrane and a preparation method thereof, belonging to the technical field of cation exchange membranes. The specific steps are: weighing DA and ammonium persulfate and adding them to a buffer solution to obtain a PDA coating solution, pouring the PDA coating solution on the surface of a base membrane for soaking, depositing a PDA coating on the surface of the activated base membrane to obtain membrane I; dissolving zirconium tetrachloride and 2-aminoterephthalic acid in DMF, then solvent-thermally synthesizing an amino-functionalized MOF (UIO-66-NH2) under acidic conditions, weighing PEI and MOF (UIO-66-NH2) powders and adding them to a buffer solution, then pouring them on the surface of membrane I, depositing a PEI-MOF composite coating to obtain membrane II, and air-drying membrane II to obtain a monovalent selective cation exchange membrane. It can be seen that the present invention can prepare a low-cost, highly selective, and stable-performance monovalent selective cation exchange membrane by modifying the cation exchange membrane through a simple and easy-to-operate method.

The invention belongs to the technical field of impurity separation, and particularly discloses a method for separating and purifying impurities in a process for preparing glyoxylic acid through oxalic acid electrolysis, a crystallization kettle is included, an isolation device is arranged in the crystallization kettle, and the isolation device comprises a conical top cover, a conveying pipe, an annular filter screen, a directional conveying assembly and a sealing assembly; the conical top cover is arranged at the axis of the crystallization kettle, an opening of the conical top cover faces downwards, and a plurality of fixing rods are fixedly connected between the top of the conical top cover and the inner wall of the side face of the crystallization kettle. According to the method, glyoxylic acid product solutions with different concentration specifications and the high-purity glyoxylic acid crystal can be obtained after the electrolyte is sequentially subjected to pre-evaporation, electrodialysis, secondary evaporation, cooling crystallization, solid-liquid separation, washing and drying and other procedures, so that the prepared high-purity glyoxylic acid crystal can be popularized and applied in the field of high-end medicine.

A bipolar membrane in which a cation-exchange membrane and an anion-exchange membrane are joined to each other, wherein a leakage ratio of gluconic acid at 60° C. is not more than 1.0%, and the cation-exchange membrane is supported by a polyolefin reinforcing member and, further, contains a polyvinyl chloride.

The invention relates to a method for separating and purifying a liquid system, the liquid system comprises an ionic liquid with the concentration ranging from 0.05 mol / L to 6.0 mol / L and a metal salt with the concentration ratio of the ionic liquid to the metal salt ranging from 2: 1 to 1: 2, and the method comprises the following steps: carrying out first-stage electrodialysis on the liquid system at the first current density ranging from 0.1 mA / cm < 2 > to 50 mA / cm < 2 >, and carrying out second-stage electrodialysis on the liquid system at the second current density ranging from 0.1 mA / cm < 2 > to 50 mA / cm < 2 >; an ionic liquid primary product and a metal salt primary product are obtained; evaporating the ionic liquid primary product and the metal salt primary product to obtain an ionic liquid concentrated solution and a metal salt concentrated solution; and performing second-stage electrodialysis on the ionic liquid concentrated solution and the metal salt concentrated solution at a second current density of 0.1-50mA / cm < 2 > to obtain an ionic liquid product and a metal salt product. According to the method disclosed by the invention, all process links are properly joined and organically coupled, and the method is operated at normal temperature and normal pressure, has relatively high production efficiency, is easy for large-scale development, is an additive-free, basically secondary-waste-free and green method, and has industrial application value.

An electrochemical apparatus comprising: an anode; a bipolar membrane; an anion exchange membrane; a cation exchange membrane; and a cathode; wherein: the anode at least partially defines a first fluid flow path; the anode and / or the first fluid flow path is in contact with the anion exchange membrane of the bipolar membrane; a second fluid flow path is defined between the cation exchange membrane of the bipolar membrane and the anion exchange membrane; a third fluid flow path is defined between the anion exchange membrane and the cation exchange membrane; the cathode at least partially defines a fourth fluid flow path; and the cation exchange membrane is in contact with the cathode and / or the fourth fluid flow path.

Systems and methods for a catalyzed asymmetric bipolar membrane are described. The catalyzed asymmetric bipolar membrane can maintain a desired current density over a long period of time at a low operating voltage. The catalyzed asymmetric bipolar membrane can be implemented in an electrodialysis cell for various applications such as carbon capture.

The invention provides a COF (at) POC composite film and a preparation method and application thereof. The preparation method comprises the following steps: a) dissolving a COF aldehyde monomer and a POC aldehyde monomer in an organic solvent to obtain a first solution; meanwhile, dissolving a COF amine monomer and a POC amine monomer in an organic solvent to obtain a second solution; b) mixing the first solution, the second solution and an acetic acid solution to obtain a homogeneous membrane casting solution; and c) dispensing the homogeneous casting membrane liquid, and reacting to obtain the COF (at) POC composite membrane. Compared with the prior art, the preparation method provided by the invention has the advantages that specific raw materials are matched with specific process steps and conditions, the overall better interaction is realized, and the prepared COF-POC composite membrane is good in mechanical strength and has high ion flux and excellent ion selectivity for monovalent and divalent ion separation; the method has a wide application prospect in the fields of seawater desalination, salt lake lithium extraction, drug separation and the like.

The invention discloses a preparation and application method of a modified ion exchange membrane for electrodialysis, aiming at the problems of poor selectivity, low mechanical strength, high energy consumption and the like of the existing ion exchange membrane, the high-performance modified membrane is prepared by a base membrane pretreatment-functional grafting-gradient curing synergistic process. The preparation method specifically comprises the following steps: performing ultrasonic cleaning and acid-base activation on a polyethersulfone or sulfonated polystyrene-based membrane, soaking the polyethersulfone or sulfonated polystyrene-based membrane in a modification solution containing an amino / carboxyl / sulfo functional monomer, a cross-linking agent and an initiator, and performing gradient heating curing to form a stable cross-linked network; the grafting rate of the modified membrane is 15-35%, the ion exchange capacity is 1.8-2.5 mmol / g, the water content is 25-40%, and the membrane surface resistance is less than 3 omega.cm < 2 >. When the membrane is applied to an electrodialysis device, the membrane runs under the conditions of 10-30V direct-current voltage, 5-15cm / s flow velocity and 25-45 DEG C, the high-salinity wastewater desalination rate is greater than or equal to 95%, and the monovalent ion selectivity coefficient reaches 5.8-7.2; when the catalyst is used for acid-base recovery, the H < + > migration number is 0.92-0.96, and the energy consumption is reduced by 18-25%.

The invention discloses a method for separating lithium and boron in a solution with a high boron-lithium ratio. The separation method comprises the following steps: carrying out primary homogeneous electrodialysis concentration separation on a solution with a high boron-lithium ratio under an alkaline condition to prepare primary lithium-rich concentrated water; diluting the first-stage lithium-rich concentrated water to prepare first-stage diluted lithium-rich concentrated water; performing high-pressure RO concentration on the primary diluted lithium-rich concentrated water under an acidic condition to prepare lithium-rich RO concentrated water; performing first-stage homogeneous phase electrodialysis concentration separation on the lithium-rich RO concentrated water under an acidic condition to prepare first-stage lithium-rich concentrated water; carrying out adsorption boron removal and desorption treatment on the first-stage lithium-rich concentrated water by adopting boron removal adsorption resin under an alkaline condition to prepare mixed lithium-rich concentrated water and boron-containing desorption liquid; carrying out MVR (mechanical vapor recompression) evaporation on the mixed lithium-rich concentrated water for preparing battery-grade lithium carbonate; and mixing the secondary boron-rich fresh water with the boron-containing desorption solution, and carrying out MVR evaporation to obtain a boric acid product. According to the method, a reasonable boron removal process combination is adopted, and boron in the solution with the high boron-lithium ratio is removed.

The utility model discloses a membrane stack with a self-cleaning device and electrodialysis equipment, and belongs to the field of electrodialysis equipment, and the membrane stack with the self-cleaning device comprises a membrane stack body, the positive water distribution plate and the negative water distribution plate are respectively propped against two sides of the membrane stack body; the spraying assembly comprises a grating plate, a water supply unit and a plurality of nozzles, the nozzles are connected to the periphery of the grating plate and all communicated with the water supply unit, the grating plate is located in the membrane stack body, and the water supply unit and the nozzles are all located outside the membrane stack body. The utility model has the technical effects that not only is the cleaning comprehensiveness good, but also the occupied space of the nozzle supporting part is small.

The invention discloses a phosphoric acid production process which comprises the following steps: S1, mixing phosphoric acid and phosphorite in a reactor for reaction, and filtering and washing reaction liquid to obtain monocalcium phosphate filtrate; s2, the monocalcium phosphate filtrate enters a bipolar membrane electrodialyzer, the bipolar membrane electrodialyzer is formed by sequentially arranging a cation exchange membrane, an anion exchange membrane and a bipolar membrane, and an acid chamber, a salt chamber and an alkali chamber are formed respectively; the monocalcium phosphate is converted into phosphoric acid and calcium hydroxide under the action of the electrodialyzer. According to the method, phosphoric acid with relatively high purity can be directly prepared, and phosphogypsum is not generated. Compared with the traditional wet-process phosphoric acid, the produced solid waste amount is sharply reduced and is about one tenth to one twentieth of that of the traditional wet-process phosphoric acid, and the phosphoric acid is rich in silicon, magnesium, iron and the like and can be used as a fertilizer additive.

A problem to be solved by the present invention is to provide an ion exchange membrane that can increase the surface area of a membrane effective for ion permeation, properly decreases the electric resistance of a flow passage between membranes and the attachment of a contaminating substance thereto, also enhances the mechanical strength of the membrane itself, and further, is less deformed or damaged due to swelling over a wide range of salt concentrations and even if there is a large difference in salt concentration between two solutions contacted with the membrane. The present invention provides an ion exchange membrane having a concavo-convex shape, wherein the ion exchange membrane has a flat portion in the vicinity of ends, and a convex curve and a concave curve resulting from curvatures of the ion exchange membrane itself form a convex part and a concave parts, respectively, in the concavo-convex shape of the ion exchange membrane, wherein the convex part extends linearly or curvedly, the concave part between the convex parts is flat, the concave part includes a first concave part adjacent to the convex part in the lateral direction of the convex part, along the longitudinal direction of the convex part, the convex part has an apex and a side face in the longitudinal direction, and the side face is inclined from the apex toward the first concave part.

The invention relates to a monovalent selective cation exchange membrane and a preparation method thereof, and belongs to the technical field of cation exchange membranes, and the specific steps are as follows: weighing DA and ammonium persulfate, adding into a buffer solution to obtain a PDA coating solution, pouring the PDA coating solution on the surface of a base membrane for soaking, and depositing a PDA coating on the surface of the activated base membrane to obtain a membrane I; the preparation method comprises the following steps: dissolving zirconium tetrachloride and 2-aminoterephthalic acid in DMF (Dimethyl Formamide), performing solvothermal synthesis on amino-functionalized MOF (UIO-66-NH2) under an acidic condition, weighing PEI and MOF (UIO-66-NH2) powder, adding into a buffer solution, pouring on the surface of a membrane I, depositing a PEI-MOF composite coating to obtain a membrane II, and air-drying the membrane II to obtain the monovalent selective cation exchange membrane. Therefore, the monovalent selective cation exchange membrane which is low in cost, high in selectivity and stable in performance can be prepared by modifying the cation exchange membrane through a simple and easy-to-operate method.

The instant invention relates to compositions comprising a protein, e.g., an antibody, or antigen-binding portion thereof, e.g., an anti-IL-1R1 antibody or antigen binding portion thereof, and methods, e.g., cell culture and protein purification methods, for producing such compositions.

This application relates to the field of electrodialysis technology, and particularly to an MXene bipolar membrane, a preparation method thereof, and an electrodialysis device. The preparation method of the MXene bipolar membrane comprises the following steps: performing a first film-forming treatment on a first casting solution containing polyvinylidene fluoride, a cationic monomer, and a first cross-linking agent to form a cation exchange layer; spraying a suspension containing an MXene material on the cation exchange layer to form an intermediate interface layer; performing a second film-forming treatment on a second casting solution containing polyvinylidene fluoride, an anionic monomer, and a second cross-linking agent to form an anion exchange layer on the intermediate interface layer. The MXene bipolar membrane prepared in this application has the advantages of high hydrolysis dissociation efficiency, excellent electrochemical performance, and good structural stability, and has broad application prospects in the field of electrodialysis.

A dual-pathway system for CO2 capture in both acidified and basified streams is provided. The system may be embodied in an off-shore stand-alone facility to allow for the operation of oceanic CO2 capture to be more efficient and cost effective. Systems maintain high environmental standards by containing all intermediate acidic and alkaline solutions in a closed system so that the effluent discharged back into the ocean is at the similar pH and salinity as the feed oceanwater, with only CO2 removed. Acid and base produced by an electrodialyzer unit is used to achieve oceanwater decarbonization via gaseous CO2 removal and solid CaCO3 precipitates removal. The system is configured to require the processing of a very small fraction of the total oceanwater intake for the acid-base generation process.

The invention discloses a three-pool electrodialysis device and method for recovering a deep eutectic solvent. The method comprises the following steps: putting a deep eutectic extracting solution sample to be recovered into a sample pool; starting a direct-current power supply, electrifying the anode and the cathode, and performing electrodialysis on the eutectic extracting solution sample; detecting the concentration of a hydrogen bond acceptor in an anion receiving tank in real time, and detecting the concentration of a hydrogen bond donor in a cation receiving tank in real time until the concentration of the hydrogen bond acceptor and the concentration of the hydrogen bond donor are not changed any more, obtaining a hydrogen bond acceptor recovery solution in the anion receiving tank, hydrogen bond donor recovery liquid is obtained in the cation receiving pool; respectively distilling the hydrogen bond acceptor recovery liquid and the hydrogen bond donor recovery liquid, and removing moisture to obtain a recovered hydrogen bond acceptor and a recovered hydrogen bond acceptor; and mixing the recovered hydrogen bond acceptor and the recovered hydrogen bond acceptor according to the ratio of the initial eutectic solvent to obtain the recovered eutectic solvent.

The invention discloses a method for preparing sodium hydroxide and ammonium salt from sodium salt and ammonia water and a related device. The method comprises the following steps: firstly, converting carnallite containing various sodium salts (such as sodium sulfate, sodium chloride, sodium carbonate, sodium bicarbonate and the like) into a solution, purifying, removing calcium ions, magnesium ions and granular impurities, then reacting through an electrodialysis membrane stack consisting of anion and cation membranes, and under the action of direct current, utilizing the selective permeability of the ion membranes, thereby obtaining the high-purity sodium salt. The sodium salt reacts with ammonia water to generate sodium hydroxide and corresponding ammonium salt. The adopted raw materials are wide in source, no harmful gas is generated in the reaction process, the obtained caustic soda is environmentally friendly and healthy, ammonium salt can be used as a chemical fertilizer, and the purposes of comprehensive utilization of resources and environmental friendliness are achieved.

Methods, devices, and systems are disclosed that capture carbon dioxide from ambient air and / or point source emissions and produce carbon dioxide from the captured atmospheric and / or point source carbon dioxide using one or more products of the carbon capture processes. Implementations filter atmospheric and / or point source impurities during the carbon capture process and in steps for producing a CO2 stream via chemical synthesis and optionally thermal generation. The integration of CO2 removal processes and chemical synthesis of CO2 synergistically combine to reduce and / or eliminate waste streams, resulting in efficient processes with low carbon emissions and reduced waste.

The electrodialysis device comprises a membrane stack, electrode plates, fixing plates, a sealing assembly, a transparent baffle and a collecting assembly, the electrode plates are arranged on the two sides of the membrane stack, the fixing plates are arranged on the outer sides of the electrode plates, supports are arranged on the outer sides of the fixing plates, and the sealing assembly is arranged on the outer sides of the fixing plates. The sealing assembly comprises a fixing pipe arranged on the outer side of the fixing plate and an iron cover hinged to the fixing pipe, the transparent baffle is inserted into the fixing plate in a penetrating mode, and the collecting assembly comprises a collecting box arranged at the bottom of the transparent baffle, a discharging pipe arranged at the front end of the collecting box, a valve arranged on the discharging pipe and a liquid level sensor arranged on the inner side of the collecting box. By arranging the transparent baffle and the collecting assembly, under the condition that use of the electrodialysis device is not affected, the effect of conveniently collecting leaked liquid is achieved, whether leakage occurs or not can be monitored, meanwhile, the clamping assembly can be sealed through the sealing assembly, and the situation that the corrosion speed is increased due to the fact that dust and liquid make contact with the clamping assembly is avoided.

The invention discloses a liquid guide hole structure and an electrodialysis partition plate assembly and an electrodialysis device thereof, and belongs to the technical field of electrodialysis, the liquid guide hole structure comprises a water retaining assembly, and the water retaining assembly is used for being arranged in a liquid guide hole; the water retaining assembly comprises water retaining plates which are arranged in parallel at intervals, and a gap is formed between the top of each water retaining plate and the inner wall of the corresponding liquid guide hole; a baffle runner is formed between every two adjacent water baffles, and the baffle runners communicate with the partition plate runners. The water retaining assembly is arranged in the liquid guide hole, so that the baffle flow channel is formed in the liquid guide hole, the baffle flow channel forces thin liquid or concentrated liquid flowing out of the partition plate flow channel to be gathered with liquid flowing out of other partition plate flow channels after passing through a longer flow path and a smaller cross section area, the resistance of a leakage current circuit is remarkably increased, and the leakage current circuit is more stable. Therefore, the leakage current is effectively reduced.

While maintaining the ion removal performance of EDI, the increase in the water flow differential pressure and voltage of EDI is suppressed. The water treatment method includes passing water to be treated, which contains an oxidant and dissolved oxygen, through an electrodeionized water production apparatus 24 filled with an ion exchanger. The product of the oxidant concentration (unit: mg / L) and the dissolved oxygen concentration (unit: mg / L) of the water to be treated at an inlet P2 of the electrodeionized water production apparatus 24 is 0.1 or less.

The present disclosure relates to a brine purification device, its purification method and uses thereof. It is disclosed a brine purification device comprising a housing with an inlet configured to receive untreated brine and an outlet configured to discharge purified brine from a purification chamber; wherein the purification chamber within said housing is configured to have two separated hemispheres; wherein the at least one plate comprises a first engraved serpentine flow channel in a first side configured for the flowing of brine and a second engraved serpentine flow channel in the opposite side of the same plate configured for the flowing of a flowing fluid; wherein the two sides of the at least one plate are separated by an anion-exchange membrane in such a way that the untreated brine combine with counter-ions from the flowing fluid through said anion-exchange membrane; wherein the at least one plate is configured for a fluid velocity of 0.007 to 0.015 m / s considering a thickness of 3 to 6 mm.

The present invention relates to a method for removing heat-stable salt by electrodialysis, comprising the following steps: i) providing an electrochemical reaction membrane stack, the electrochemical reaction membrane stack comprising a cathode and an anode plate and at least one repeatable unit arranged between the two polar plates, an electric field being present between the cathode and the anode plates, and the repeatable unit comprising a "pure water channel-desalting channel-alkali solution channel" from the cathode plate to the anode plate, the pure water channel being defined by an anion exchange membrane and a cation exchange membrane, the desalting channel being defined by a cation exchange membrane and an anion exchange membrane, and the alkali solution channel being defined by an anion exchange membrane and an anion exchange membrane; ii) introducing pure water into the pure water channel, introducing raw water into the desalting channel, introducing alkali solution into the alkali solution channel, and iii) drawing out a product stream from the desalting channel; wherein the raw water comprises an organic amine compound and a heat-stable salt. The present invention utilizes an electrochemical reaction membrane stack to achieve the removal of heat-stable salt.

The invention discloses a low-hydrogen-permeation proton exchange membrane as well as a preparation method and application thereof. The low-hydrogen-permeation proton exchange membrane comprises an enhancement layer and a hydrogen elimination layer arranged on one side or two sides of the enhancement layer in a laminated manner, the reinforcing layer comprises a reinforcing matrix and fluorine-containing sulfonic acid resin coated on the reinforcing matrix; the dehydrogenation layer comprises fluorine-containing sulfonic acid resin and a silanization reagent modified Pt additive anchored and dispersed in the fluorine-containing sulfonic acid resin. According to the invention, the Pt type additive modified by the silanization reagent with anchoring and dispersing effects is doped in the fluorine-containing sulfonic acid resin to serve as a dehydrogenation layer, and silanization modification improves the dispersion uniformity and utilization rate of the Pt type additive and improves the anchoring stability of the Pt type additive at the same time; a reinforcing substrate is arranged on the reinforcing layer, so that the mechanical strength of the membrane is improved, and the excellent three-in-one effect of low hydrogen permeation, high durability and high mechanical property is realized.