40 results about "Copper bromide" patented technology

The invention discloses a method for realizing'active ' / controllable free radical polymerization of hydrophilic and / or hydrophobic monomers under an air condition, relates to the field of'active' / controllable free radical polymerization, and aims to solve the problem of narrow monomer selection range in the prior art. A functional monomer comprising a hydrophobic monomer, a halide, copper bromide, a ligand and a nonionic surfactant-GOx are subjected to monomer polymerization in a solvent through an initiator azodiisobutylimidazoline hydrochloride (VA-044), and a polymer with narrow target molecular weight and molecular weight distribution is formed. According to the method, the glucose oxidase modified by the nonionic surfactant is introduced into the'active ' / controllable free radical polymerization reaction, and an effective way for quickly and efficiently synthesizing a target polymer from a hydrophobic monomer under the mild air condition is provided.

The invention relates to the technical field of water treatment agents, and provides a solid slow-release scale inhibitor and a preparation method thereof. The preparation method of the solid slow-release scale inhibitor comprises the following steps: dispersing an aminated MOFs material in a mixed solvent of methanol and water, adding poly (N-isopropylacrylamide) and a cuprous bromide / pentamethyldiethylenetriamine catalytic system, and performing separation and freeze drying after reaction to obtain a temperature-sensitive functionalized MOFs material; dispersing the hyperbranched polyaspartic acid-itaconic acid copolymer in a mixed solvent of methanol and water, adding the temperature-sensitive functionalized MOFs material, reacting, and drying to obtain a polymer-loaded MOFs material; and dissolving zirconium acetate in water, adjusting the pH value to 4.0, adding the polymer-loaded MOFs material, carrying out a reaction, and carrying out centrifugal washing and drying. The solid slow-release scale inhibitor provided by the invention has a stable and effective scale inhibition effect.

The invention discloses a synthesis method of a mono / dibromo pyridine derivative, which comprises the following steps: reacting a pyridine derivative with dimethyl butynedioate and methyl pyruvate at room temperature by using acetonitrile as a solvent to generate a dearomatized heteroaromatic compound; in an oxygen environment, copper bromide is used for brominating the dearomatized heteroaromatic compound to realize dibromination, and if potassium carbonate is additionally added in the reaction, monobromination is realized; and finally, respectively generating mono / dibromopyridine derivatives under hydrochloric acid hydrolysis. A carbon halogen bond of bromopyridine has very high activity, and various reactions such as Suzuki coupling, Sonogashira coupling, Heck reaction, amination reaction and the like can be carried out. On the basis, the polysubstituted bromopyridine can be subjected to selective reaction, and many new ideas can be provided for organic synthesis. The method disclosed by the invention is simple and safe to operate and environment-friendly, the cost is lower by using the copper bromide, and the required reaction conditions are simple.

The invention discloses an organic-inorganic hybrid copper-based monomolecular crystal and a preparation method and application thereof, the molecular formula of the monomolecular crystal is (C9H7N) 2CuBr2, and the preparation method comprises the following steps: dissolving an organic cation source in a medium solvent to obtain an organic solution; dissolving a copper metal ligand in hydroiodic acid to obtain an acid solution; mixing the organic solution and the acid solution, putting the mixed solution into a sealed bottle filled with a diffusion solvent, sealing by a sealing cover to form a sealed system, keeping out of the light, standing after the diffusion solvent in the bottle is completely volatilized, and observing a light green needle-like crystal to obtain a finished product. Isoquinoline is selected as an organic cation source, copper bromide metal salt is selected as a metal ligand, the monomolecular crystal which is flexible in structure, small in molecular weight, high in stability and excellent in performance is prepared through an anti-solvent diffusion single crystal method, the synthesis process is simple, the preparation period is short, the yield is high, and environment friendliness is achieved; and the application of the monomolecular crystal in the field of multifunctional miniaturized circuits is widened.

The invention discloses injectable copper ion mediated antibacterial hydrogel and a preparation method and application thereof, and relates to the technical field of medicinal chemistry, the injectable copper ion mediated antibacterial hydrogel is formed by self-assembly of 4 '-[(4-(4-morpholinyl butoxy) phenyl)]-2, 2': 6 '2 ''-terpyridyl ligand L and copper ions, and the antibacterial hydrogel has a porous structure; the preparation method comprises the following steps: mixing a 4 '-[(4-(4-morpholinyl butoxy) phenyl)]-2, 2': 6 '2 ''-terpyridyl ligand L with a copper bromide aqueous solution to prepare hydrogel; the invention also provides an application of the antibacterial hydrogel in preparation of antibacterial drugs. The process for preparing the hydrogel is simple, the prepared hydrogel is excellent in antibacterial performance and has good biocompatibility, in-vivo greater wax moth larva infection treatment tests also prove that the hydrogel has a good in-vivo antibacterial effect, and the survival rate of greater wax moth larvae can be increased.

The invention discloses a method for preparing phenylephrine hydrochloride genotoxic impurities, which comprises the following steps: by taking 3-hydroxyacetophenone as a starting material and copper bromide as a bromine source in isopropanol, reacting, and then preparing and separating to obtain dibromide impurities. The reaction condition for preparing the phenylephrine hydrochloride genotoxic impurity is mild, the operation is simple, the product purity is high, and the quality requirement for controlling phenylephrine hydrochloride can be met.

The provided is a PMMA (polymethylmethacrylate) and borax doped copolymer synthesized by using atom transfer radical polymerization (ATRP) method, and uses of this copolymer. The steps of the method include: filling an Atmos-Bag with argon gas; and weighing of Tetra-n-butylammonium Bromide, Copper Bromide, Borax Decahydrate, Methyl Methacrylate, Pentamethyldiethylenetriamine, Ethyl 2-bromoisobutyrate chemicals with a precision scale in the Atmos-Bag.

A polyimide resin composition containing a polyimide resin (A) and an antioxidant (B), wherein the polyimide resin (A) contains a repeating structural unit represented by the following formula (1) and a repeating structural unit represented by the following formula (2), a content ratio of the repeating structural unit of the formula (1) with respect to the total of the repeating structural unit of the formula (1) and the repeating structural unit of the formula (2) is 20 to 70 mol %, and the antioxidant (B) contains one or more copper compounds (B1) selected from the group consisting of copper fluoride, copper bromide, copper iodide, and copper carboxylates, or a cerium-containing compound (B2);wherein R1 represents a divalent group having from 6 to 22 carbon atoms containing at least one alicyclic hydrocarbon structure; R2 represents a divalent chain aliphatic group having from 5 to 16 carbon atoms; and X1 and X2 each independently represent a tetravalent group having from 6 to 22 carbon atoms containing at least one aromatic group.

The preparation method comprises the following specific steps: firstly, taking copper bromide and 1-butyl-3-methylimidazole hydrobromide as raw materials, and reacting to prepare a copper complex ionic liquid; ultrasonically dispersing cerium nitrate and lanthanum-doped lithium titanate into the copper complexing ionic liquid to obtain ionic liquid mixed liquid; stirring and heating tetraethoxysilane to 130-150 DEG C, continuously adding the ionic liquid mixed solution, uniformly stirring and mixing, immediately adding tetrabutyl titanate, concentrated hydrochloric acid, deionized water and methanol, carrying out heat-preservation stirring for 30-40 minutes under the condition of a pulsed magnetic field, finally, carrying out heat-preservation standing for 8-10 hours, and carrying out post-treatment, so as to obtain the ionic liquid. The composite denitration agent disclosed by the invention can be used for flue gas treatment of the lime rotary kiln, can realize a relatively good denitration effect under the condition of low temperature (100-120 DEG C), and has a good popularization prospect.

The application discloses a cesium copper bromide-silver bromide heterojunction photocatalyst and a preparation method and application thereof, and belongs to the technical field of photocatalytic material for preventing and treating air pollution. The preparation method comprises the following steps: dissolving cesium bromide and copper bromide in dimethyl sulfoxide, and obtaining cesium copper bromide by using an anti-solvent recrystallization method; dispersing the cesium copper bromide into an isopropyl alcohol solution, adding a silver nitrate-isopropyl alcohol solution, sealing the obtained mixed solution, continuously stirring under light irradiation, and obtaining the cesium copper bromide-silver bromide heterojunction photocatalyst through centrifugation, washing and drying. The cesium copper bromide-silver bromide heterojunction photocatalyst provided by the application has stronger photocatalytic reduction capacity, and can greatly improve the activity of the cesium copper bromide-silver bromide in photocatalytic reduction of carbon dioxide.

This invention discloses an aqueous copper-ion battery electrolyte, its preparation method, and the copper-ion battery itself. The electrolyte comprises a copper salt, a solvent, and a copper halide salt additive. The copper salt is copper sulfate, and the solvent is deionized water. The concentration of the copper salt in the electrolyte is 0.5–1.5 mol / L. The copper halide salt additive is selected from one or more of copper fluoride, copper chloride, and copper bromide, and the total concentration of the copper halide salt additive in the electrolyte is 0.005–0.2 mol / L. When the electrolyte of this invention is used in an aqueous copper-ion battery, the halide ions in the copper halide salt additive can preferentially adsorb onto the surface of the metallic copper anode, inducing uniform copper deposition and inhibiting the formation of by-products. This significantly improves the coulombic efficiency and cycle stability of the aqueous copper-ion battery. Furthermore, the electrolyte preparation process is simple, low-cost, and environmentally friendly, making it suitable for large-scale energy storage scenarios.

The invention relates to a nylon 66 in-situ nano composite resin and a melt gradient spinning method thereof, belongs to the technical field of high polymer materials, and solves the problem that the traditional modification method of nylon 66 is difficult to consider high strength and high cohesiveness at the same time. The composite resin comprises the following components in parts by weight: 80-100 parts of nylon 66 salt; the diheterocyclic comonomer comprises the following components in parts by weight: 5-10 parts of pyridine ring-containing binary acid and 3-8 parts of triazine ring diamine; the surface modification nano material comprises the following components in percentage by weight: 1 to 3 percent of aminated carbon nano tube and 0.5 to 1 percent of aramid nano fiber; and 0.3-1 part of a copper bromide heat stabilizer. Compared with domestic conventional nylon 66 fibers, the nano composite resin provided by the invention has the advantage that the performance is obviously improved.

The invention provides a preparation method of polystyrene with controllable molecular weight, which comprises the following steps: under the protection of inert atmosphere, adding a reducing agent into a water-free and oxygen-free organic solvent, then adding a styrene monomer, a catalyst and a dormancy initiator, and controlling the temperature to carry out polymerization reaction; after the reaction is finished, terminating the reaction, and carrying out post-treatment to obtain polystyrene; wherein the catalyst is a copper bromide / pentamethyldiethylenetriamine complex; the dormancy initiator comprises any one or a combination of at least two of alkyl chloride, alkyl bromide or alkyl iodide; the reducing agent is graphene oxide grafted with a phenolic hydroxyl group, and the active component phenolic hydroxyl group is grafted on the carrier graphene oxide. The supported reducing agent is adopted, the dynamic environment of polymerization reaction is fundamentally changed, and the free radical concentration in the system is controlled at an extremely low level, so that the occurrence rate of side reaction is fundamentally and greatly reduced, and controllable molecular weight is realized; belongs to the technical field of organic synthesis.

The invention discloses a method for synthesizing lead-free Cu: CsBr perovskite (Cu: CsBr NCs) stable in an aqueous solution by using a one-pot method, which comprises the following steps of: selecting cesium carbonate, copper bromide and citric acid as reactants, and oleic acid and oleylamine as surface ligands, adding a proper amount of octadecene or mineral oil, performing ultrasonic treatment to obtain a Cu: CsBr-coated CC solution, and centrifuging, purifying and drying the solution to obtain the lead-free Cu: CsBr-coated CC perovskite (Cu: CsBr NCs) stable in the aqueous solution. Cu: CsBr (at) CC powder is obtained. The method disclosed by the invention is simple to operate, short in time and good in repeatability, can be synthesized by only one step, and the prepared compound is good in solubility in an aqueous solution, excellent in dispersity, stable in fluorescence and easy to store.

The invention relates to the field of preparation of polymer brushes, and discloses a polyimide film grafted with a polymer brush and a preparation method thereof, and the method comprises the following steps: carrying out polycondensation reaction on a diamine monomer and an anhydride monomer, washing, and drying to obtain the polyimide film grafted with the polymer brush. Performing grafting reaction on the polyimide powder and an initiator 2-bromoisotolyl bromide in a pyridine solvent, washing and drying to obtain polyimide powder of which the main chain is grafted with the initiator; dissolving the initiator grafted polyimide powder in an N-methyl pyrrolidone solvent to prepare a film casting solution, and coating to prepare a polyimide film; in a deoxidizing atmosphere, a polyimide film is soaked in an aqueous solution in which the polymer brush monomer is dissolved, and copper bromide, 2, 2 '-dipyridyl and ascorbic acid are added for reaction to obtain the polyimide film grafted with the polymer brush. According to the preparation method, the initiator 2-bromoisotolyl bromide is grafted on a polyimide main chain, so that the grafting thickness of a polymer brush reaches a micron level.

The present invention discloses a method for preparing copper-based powder pigments by using waste circuit board glass fiber-based powder. The method for preparing copper-based powder pigments by using waste circuit board glass fiber-based powder comprises the following steps: heating the waste glass fiber-based powder at 280 °C, cooling, grinding, sieving, and obtaining the glass fiber powder that has not been sieved on the sieve; dissolving copper bromide in water, adding the glass fiber powder, stirring at room temperature, drying to obtain a mixture, heating under nitrogen protection at 550-650 °C, cooling to room temperature to obtain a crude powder, soaking the crude powder in dilute hydrochloric acid, filtering, then soaking in sodium hydroxide solution, filtering, washing, and drying to obtain copper-based powder pigments. The copper-based powder pigments are red, have the properties of being resistant to acid and alkali corrosion, and can also maintain their color in aqua regia, having stability. This method realizes the reuse of the waste glass fiber-based powder waste generated after the metal recovery process of waste circuit boards.

The invention discloses a method for preparing a copper-based powder pigment from waste circuit board glass fiber-based powder. The method for preparing the copper-based powder pigment by using the waste circuit board glass fiber-based powder comprises the following steps: heating, cooling, grinding and sieving the waste glass fiber-based powder at 280 DEG C to obtain glass fiber powder which is not sieved on a sieve; the preparation method comprises the following steps: dissolving copper bromide in water, adding glass fiber powder, stirring and drying at room temperature to obtain a mixture, heating at 550-650 DEG C under the protection of nitrogen, cooling to room temperature to obtain coarse powder, soaking the coarse powder in diluted hydrochloric acid, filtering, soaking in a sodium hydroxide solution, filtering, cleaning and drying to obtain the copper-based powder pigment. The copper-based powder pigment is red and has acid and alkali corrosion resistance, the color of the copper-based powder pigment can be kept in aqua regia, the copper-based powder pigment has stability, and according to the method, the waste glass fiber-based powder garbage generated after the waste circuit board is subjected to a metal recovery process is recycled.

This invention relates to the field of lithium iron phosphate, specifically to a porous carbon-supported metal oxide-modified lithium iron phosphate cathode material and its preparation method; it addresses the problems of poor electronic conductivity and poor cycle performance of existing lithium iron phosphate. The porous carbon-supported metal oxide-modified lithium iron phosphate cathode material comprises B / F / N-doped porous carbon-supported yttrium oxide-modified lithium iron phosphate, conductive carbon black, sodium carboxymethyl cellulose, and N-methylpyrrolidone. The preparation method first prepares lithium iron phosphate, using 4-formylphenylboronic acid and 2,3,5,6-tetrafluoro-1,4-phenylenediamine to prepare a precursor, which is then combined with copper bromide to prepare B / F / N-doped porous carbon. Yttrium oxide is then loaded onto the porous carbon and modified onto the surface of the lithium iron phosphate. This provides better ion transport channels during charge and discharge, enhancing the kinetic performance and stability of lithium iron phosphate during charge and discharge, ultimately improving the overall performance of the battery.

The invention relates to the technical field of polymer electrolyte membranes, in particular to a preparation method, a product and application of a polymer electrolyte membrane. The preparation method comprises the following steps: dissolving Br-PEO-Br, copper bromide, N, N, N, N, N-pentamethyldiethylenetriamine, a monomer and ascorbic acid in a solvent, and carrying out a polymerization reaction after circulation of freezing, vacuumizing and unfreezing for three times; precipitating in a poor solvent after the polymerization reaction is finished, and washing and drying the obtained precipitate to obtain a modified PEO material; and uniformly mixing the modified PEO material with a lithium salt and an ionic liquid, and carrying out hot press molding to obtain the polymer electrolyte membrane. The polymer electrolyte membrane disclosed by the invention has relatively high conductivity, the ionic conductivity at room temperature is greater than 10 <-3 > S / cm, and meanwhile, the polymer electrolyte membrane has the characteristics of good processing performance and excellent mechanical performance of a polymer.

The application provides a fluorinated cyclodextrin macromolecular adsorbent and a preparation method and application thereof, and belongs to the technical field of lithium ion adsorbents, and aims to solve the technical problems of poor lithium ion adsorption effect and low selectivity of existing lithium adsorbents. The preparation steps of the application comprise the following steps: firstly, dissolving beta-cyclodextrin in an organic solvent and reacting with 2-bromoisobutyryl bromide to obtain an intermediate product bromoisobutyryl beta-cyclodextrin; and then, performing a polymerization reaction on the bromoisobutyryl beta-cyclodextrin with a fluorine-containing monomer, copper bromide, N,N,N',N",N"-pentamethyldiethylenetriamine and tin (II) isooctoate to obtain a beta-cyclodextrin adsorption material with a surface grafted fluorine-containing polymer chain. The preparation method has the advantages of simple process and mild reaction conditions. The adsorption material has a high lithium ion adsorption capacity, which can reach 43.5 mg / g, and can efficiently and selectively recover lithium ions from a complex solution containing competitive ions such as sodium, potassium, magnesium, calcium and cobalt.

This invention relates to a photoelectrocatalytic reaction device without external bias and its applications, belonging to the field of energy materials and catalysis technology. The invention utilizes nanosheet nickel hydroxide, prepared by electrodeposition on hydrophilic carbon paper, as a catalyst for the oxidation of 5-hydroxymethylfurfural (HMF). A binuclear copper molecule is synthesized as a carbon dioxide (CO2) reduction catalyst via a reflux reaction of 1,2-bis(diphenylphosphine)benzene and copper bromide. The HMF oxidation catalyst is connected to the anode of a triple-junction gallium arsenide battery, encapsulated, and placed in the anode chamber. A hydrophobic carbon paper loaded with the binuclear copper molecule catalyst is connected to the cathode. Under no external bias, the anode efficiently oxidizes HMF to FDCA (2,5-furandicarboxylic acid) through the synergistic effect of nickel hydroxide and tetramethylpiperidine oxide (TEMPO), while the cathode simultaneously reduces CO2. This system exhibits high selectivity, high conversion rate, and excellent catalytic efficiency. The device is reusable, and the catalyst preparation is simple and the raw materials are inexpensive and readily available.

The invention discloses a preparation method of (8-bromoindolizine-3-yl) (3, 4, 5-trifluorophenyl) ketone, and belongs to the technical field of medical intermediates. The method comprises the following steps: synthesizing an intermediate 1 from 2-bromo-1-(3, 4, 5-trifluorophenyl) ethanone and 3-acetamidopyridine, generating an intermediate 2 from the intermediate 1 and maleic anhydride under the action of alkali and an oxidant, and then generating (8-bromoindolizine-3-yl) (3, 4, 5-trifluorophenyl) ketone under the action of copper bromide and t-BuONO. According to the method, 3-acetaminopyridine and 2-bromo-1-(3, 4, 5-trifluorophenyl) ethanone are adopted as raw materials, an intermediate 1 is generated, and then cyclization is performed to generate indolizine. And the cyclization is positioned between pyridine nitrogen and the amino group due to the hydrogen-bond interaction, so that the reaction design is reasonable, and an effective path is provided for the preparation of the product.

A method for realizing living / controlled free radical polymerization of hydrophilic and / or hydrophobic monomers under air conditions is provided. The functional monomer including hydrophobic monomer, halide, copper bromide, ligand and non-ionic surfactant-GOx is used to initiate the polymerization of monomer in a solvent through initiator azodiisobutyric imidazoline hydrochloride (VA-044) to form polymer with narrow target molecular weight and molecular weight distribution.

The invention discloses a preparation method of o-trifluoromethylbenzamide and an intermediate thereof. The invention provides a preparation method of o-trifluoromethylbenzonitrile, which comprises the following steps: in a non-protonic polar solvent, o-bromobenzotrifluoride and cuprous cyanide are subjected to a cyanation substitution reaction as shown below to obtain the o-trifluoromethylbenzonitrile. The invention uses o-trifluoromethylaniline, a byproduct generated when an enterprise produces m-trifluoromethylaniline, as a raw material, explores the potential value of the byproduct, utilizes the byproduct as a resource, has less three wastes, is simple to post-process, and the cuprous bromide, a byproduct generated during the preparation process, can be recycled.

The application relates to a preparation method of arolool hydrochloride, which uses 5-acetylthiophene-2-carboxamide as raw material and only uses a catalytic amount of copper bromide to prepare a key intermediate 5-(2-sulfhydryl-4-thiazolyl)-2-thiophene carboxamide through one-pot bromination and cyclization.

The present application belongs to the technical field of sealant preparation, and discloses a one-component sealant, which comprises, by mass, 40-50 parts of α, ω-dihydroxy polysiloxane, 5-10 parts of hydrophobic fumed silica, 40-50 parts of nano calcium carbonate, 5-10 parts of silicon micropowder, 0.5-1 parts of carbon black, 1-2 parts of a dehydrating agent, 6-13 parts of a cross-linking agent, 0.01-0.1 parts of a catalyst, and 1-8 parts of an organic metal compound, wherein the organic metal compound is selected from at least one of tri(triphenylphosphine) copper fluoride, tri(triphenylphosphine) copper chloride, tri(triphenylphosphine) copper bromide, bis(triphenylphosphine) nickel difluoride, bis(triphenylphosphine) nickel dichloride, and bis(triphenylphosphine) nickel dibromide. The present application obtains a one-component sealant with good heat resistance and UV resistance through the above design. In addition, the present application also discloses a preparation method of the one-component sealant.

The invention discloses a method for synthesizing a 2-aryl-(hetero) ring 1, 3-dicarbonyl compound from aryl iodine ylide. According to the invention, copper bromide is used as a catalyst, at least one of carbonate and phosphate is used as alkali, at least one of dichloroethane and acetonitrile is used as a solvent, the reaction can be rapidly carried out under mild conditions to obtain the required target product, and the yield is relatively high. The method is suitable for most aryl iodine ylide compounds to react to generate the 2-aryl-(hetero) ring 1, 3-dicarbonyl compound, and the application range is wide.

This invention provides a high-viscosity, high-temperature resistant dimer acid type polyamide hot melt adhesive and its preparation method, comprising the following components by mass fraction: 100 parts dimer acid type polyamide, 0.01-0.1 parts free radical initiator, 0.25-0.5 parts tris(triphenylphosphine)copper bromide, 0.5-1.0 parts hindered phenolic antioxidant, 1-5 parts polyether defoamer, and 0.1-0.5 parts higher alcohol defoamer. The preparation method provided by this invention is simple and highly operable. The dimer acid type polyamide hot melt adhesive prepared by this method possesses excellent temperature resistance and high viscosity, expanding the application range of existing dimer acid type polyamide hot melt adhesives.

The invention discloses a cesium copper bromide-silver bromide heterojunction photocatalyst as well as a preparation method and application thereof, and belongs to the technical field of air pollution prevention and control of photocatalytic materials. The preparation method comprises the following steps: dissolving cesium bromide and copper bromide in dimethyl sulfoxide, and obtaining cesium copper bromide by using an anti-solvent recrystallization method; the preparation method comprises the following steps: dispersing cesium, copper and bromine into an isopropanol solution, adding a silver nitrate-isopropanol solution, sealing the obtained mixed solution, continuously stirring under the condition of illumination, centrifuging, washing and drying to obtain the cesium, copper and bromine-silver bromide heterojunction photocatalyst. The cesium-copper-bromine-silver bromide heterojunction photocatalyst provided by the invention has stronger photocatalytic reduction capability, and the activity of the cesium-copper-bromine-silver bromide for photocatalytic reduction of carbon dioxide can be greatly improved.

The invention belongs to the field of petroleum development, and discloses a preparation method of a high-temperature-resistant salt-resistant filtrate reducer for a drilling fluid, which comprises the following steps: dissolving N-(3-acetylphenyl)-N-vinyl methacrylamide and p-acetamidobenzenesulfonyl chloride in a solvent tetrahydrofuran, adding catalysts copper bromide and sodium carbonate, introducing nitrogen, heating for reaction, and cooling to room temperature; extracting with trichloromethane, and concentrating to obtain a product A; adding purified water, acrylamide, acrylic acid, AMPS, hexadecyl dimethyl allyl ammonium chloride and the product A into a liquid preparation tank, adjusting pH with NaOH, cooling, blowing nitrogen, and adding a chain transfer agent, an oxidizing agent and a reducing agent to obtain a white elastic solid. After shearing, drying, grinding and sieving to obtain white powder, namely the high-temperature-resistant and salt-resistant filtrate reducer for the drilling fluid. The product can be used as a saturated salt water drilling fluid filtrate reducer at the high temperature of 220 DEG C.