241 results about "Carboxylic salt" patented technology

The invention relates to a particulate composition comprising, or substantially consisting of, urea, an inhibitor, preferably a urease inhibitor and / or a nitrification inhibitor, and an additive, wherein the additive comprises components (i) and (ii): (i) a carboxylic acid or an anhydride, salt, or derivative thereof; preferably a carboxylic acid salt or a carboxylic acid derivative, more preferably a carboxylic acid salt; and (ii) a polar polymer; preferably a water-soluble polar polymer. The invention further relates to a process for preparing the particulate composition, an additive for a particulate composition, and the use of the particulate composition as a fertilizer.

The invention discloses a talcum powder filled regenerated polypropylene composite material and a preparation method thereof, and relates to the technical field of regenerated polypropylene. The talcum powder filled regenerated polypropylene composite material comprises the following raw materials in parts by mass: 100 parts of regenerated polypropylene, 15-18 parts of a nucleating agent, 8-10 parts of a cross-linking agent, 0.1-0.3 part of an initiator, 0.5-1 part of an antioxidant, 0.5-0.7 part of a light stabilizer and 1-2 parts of a lubricant. The regenerated polypropylene comprises a regenerated polypropylene master batch and a modified polypropylene master batch in a mass ratio of 1: (1-2); the nucleating agent comprises modified talcum powder and an organic carboxylate nucleating agent in a mass ratio of 50: (1-2). According to the regenerated polypropylene composite material provided by the invention, the mechanical property of regenerated polypropylene is remarkably improved, and the generation of volatile irritant gas after processing is reduced.

The invention provides a secondary battery and an electronic device, the secondary battery comprises a positive pole piece and a negative pole piece, the positive pole piece comprises a positive pole material layer, the positive pole material layer comprises a positive pole active material, and the positive pole active material comprises a manganese-containing material; the manganese-containing material comprises at least one of lithium manganate, lithium iron manganese phosphate, a lithium-rich manganese-based material or nickel cobalt lithium manganate. The negative pole piece comprises a first additive, the first additive comprises at least one of carboxylate, sulfonate or a metal organic framework compound, carboxylate comprises at least one of lithium oxalate, sodium citrate, sodium maleate or sodium tartrate, sulfonate comprises at least one of sodium benzenesulfonate, sodium dodecyl benzene sulfonate or sodium methanesulfonate, and metal organic framework compound comprises at least one of lithium oxalate, sodium citrate, sodium maleate or sodium tartrate. The metal organic framework compound is prepared from at least one of Zn (C4H7N2) 2, C48H28O32Zr6 or C14H16N2O8Mg2. The invention further discloses a preparation method of the metal organic framework compound. The secondary battery meets the characteristics, and the cycle performance of the secondary battery can be improved.

The invention provides anti-erosion hydraulic concrete and a preparation method thereof, and belongs to the technical field of concrete. The concrete comprises the following components: composite cement, high-activity nano-modified metakaolin, blast furnace slag powder, low-calcium fly ash, coarse aggregate, natural river sand fine aggregate, granite machine-made sand fine aggregate, an erosion inhibitor, a functional additive, an early-strength polycarboxylic high-performance water reducer, a composite air entraining agent and the like. The composite cement comprises sulphoaluminate cement, Portland cement and polymer waterproof mortar. The high-activity nano modified metakaolin is obtained by modifying metakaolin with an organic silicon-ZnO composite emulsion and then drying. The erosion inhibitor comprises organic carboxylate, a hydrophobic-crystallization complexing agent and a pH buffer type corrosion inhibitor. The functional auxiliary agent comprises an itaconic acid and acrylic acid copolymer, a JRY-F concrete waterproof agent and polyethylene glycol-400 dilaurate. The composite air entraining agent comprises liquid sodium abietate and sodium alpha-olefin sulfonate. Through component synergism, modification and grading, an anti-erosion barrier is constructed.

The invention belongs to the field of batteries, and provides a high-current-density long-circulation zinc-bromine flow battery negative electrode electrolyte and battery preparation. The battery comprises a positive electrode, a negative electrode, a diaphragm, positive and negative electrolyte, a current collector and an end plate, the diaphragm is a cation exchange membrane; and the negative electrode electrolyte comprises a metal salt, a supporting electrolyte, an organic carboxylate complexing agent and deionized water. The organic carboxylate complexing agent disclosed by the invention can be adsorbed on a porous electrode, and by increasing zinc deposition sites, inhibiting two-dimensional interface diffusion and promoting zinc mass transfer, zinc dendrites are relieved, and the zinc-bromine flow battery with high current density and long circulation stability is realized.

The invention provides high-grinding-efficiency color paste, a preparation method thereof and dispersed ink, and belongs to the technical field of dispersed ink, and the high-grinding-efficiency color paste comprises the following components in percentage by weight: 15%-30% of disperse dye toner, 15%-25% of a dispersing agent, 5%-15% of resin ammonium salt, 10%-20% of a dissolution promoting mixture, 0.5%-2% of a wetting agent and the balance of water; the dispersing agent comprises a hyperbranched polymer and a sodium naphthalene sulfonate improved polymer; the hyperbranched polymer takes a benzene ring as a center, hydrophobic groups and hydrophilic groups on a branched chain are randomly distributed, the hydrophilic groups of the branched chain comprise carboxylate and sulfonate, and the hydrophobic groups of the branched chain comprise alkane, ester and aryl. According to the invention, the hyperbranched polymer and the sodium naphthalene sulfonate improved polymer are mixed with the dispersing agent, so that the problem of abrupt change of ink viscosity can be avoided when the content of ink toner is relatively high, thereby obtaining the color paste with strong dispersion and high stability, and further obtaining the dispersed ink with good stability.

The invention relates to a preparation method of a carboxylate dispersant and an application of the carboxylate dispersant in a suspending agent, and belongs to the technical field of dispersants.The carboxylate polymer containing carboxyl, polyethylene glycol and slow-release chelating agent nanoparticles are polymerized together to form a comb-shaped structure; the sulfonic acid group on the carboxylate dispersant is ionized into-SO3-, the surfaces of pesticide particles are negatively charged, the electrostatic repulsion in the system is enhanced, the collision among the softened pesticide particles can be weakened, the sedimentation trend of the pesticide nanoparticles is weakened to a certain extent, and the stability of the suspension system is improved. Meanwhile, sodium ethylene diamine tetracetate in the slow-release chelating agent nano-microspheres can be slowly released, the sodium ethylene diamine tetracetate is preferentially chelated with calcium ions and magnesium ions in water, the calcium ions and the magnesium ions are prevented from being combined with sulfonic acid and carboxylic acid groups on the carboxylate dispersing agent, and the comb-shaped structure of the carboxylate dispersing agent has strong steric hindrance, so that the carboxylate dispersing agent can be used for dispersing calcium ions and magnesium ions in water. The effect of physically blocking calcium and magnesium ions can be achieved.

The application relates to the technical field of paint, and particularly discloses a water-based insulating paint and a preparation method; the water-based insulating paint comprises components A and B, the mass ratio of the components A and B is (7-9):1, the component A comprises the following raw materials in parts by weight: deionized water 100-150 parts, bentonite 3-8 parts, fumed silica 3-8 parts, titanium white 40-80 parts, barium sulfate 90-110 parts, mica powder 40-60 parts, zinc phosphate 60-80 parts, feldspar powder 40-60 parts, epoxy emulsion 400-500 parts, base material wetting agent 3-5 parts and dispersant 30-80 parts; the component B comprises the following raw materials in parts by weight: curing agent 40-60 parts and solvent 40-60 parts; the dispersant comprises a sulfonate dispersant and a polycarboxylate dispersant; the application promotes the insulating performance of the paint through the synergistic effect of various components, reduces the agglomeration of particles in the paint system, and improves the dispersing performance of the paint.

The invention relates to the technical field of paint preparation, in particular to a preparation method for removing harmful gases from paint, which comprises the following steps: preparing functional components for removing harmful gases, and weighing nano titanium dioxide, activated carbon and modified montmorillonite according to the mass ratio of (5-10): (2-5): (1-3); the preparation method comprises the following steps: preparing a resin base material: weighing 30-50 parts by mass of hydroxy acrylic resin, 10-20 parts by mass of polyurethane resin, 20-30 parts by mass of deionized water and 5-10 parts by mass of ethanol; preparing a coating premix: adding 1-3 parts by mass of a polycarboxylate dispersant and 0.5-2 parts by mass of an organic silicon defoaming agent into the resin base material; and preparing a finished product coating: adding 0.5-2 parts by mass of an acrylate leveling agent, 1-4 parts by mass of a hydroxyethyl cellulose thickening agent and 0.5-1.5 parts by mass of an isothiazolinone mildew preventive into the coating premix. The coating disclosed by the invention has the following beneficial effects that the coating can cope with a complex scene in which indoor multi-component pollutants coexist; the problem of harmful gas desorption after adsorption saturation of a single material is avoided, and the purification validity period is prolonged.

The invention relates to the technical field of preparation of fluorescent coatings, in particular to a fluorescent building coating and a production process thereof. The fluorescent building coating comprises the following components: a first luminescent material, a second luminescent material, an optical synergistic material, water-based acrylic resin, deionized water, cerium oxide particles, an ultraviolet absorbent, a plasticizer, an anti-freezing agent, a defoaming agent and a polycarboxylate dispersing agent, an energy transfer system is constructed by using the first luminescent material and the second luminescent material, the trap level of the first luminescent material can store ultraviolet light energy and provide ultra-long afterglow, the second luminescent material can greatly prolong the afterglow time through an FRET mechanism, and meanwhile, the optical synergistic material and other components in the coating components are combined, so that the coating is more efficient and more environment-friendly. The prepared coating has high-efficiency fluorescence performance and long-acting durability, and is suitable for high-value-added scenes such as tunnel identification, emergency lighting and building curtain walls.

The invention provides a solid electrolyte membrane and a preparation method thereof, a secondary battery and electric equipment. The solid electrolyte membrane comprises the following components: polyvinylidene fluoride or a copolymer thereof, polyimide or a copolymer thereof, electrolyte salt and amino polycarboxylic acid salt. The solid electrolyte membrane is prepared by taking polyvinylidene fluoride or a copolymer thereof as a matrix, and polyimide and amino polycarboxylate are added to improve the crystallization property of polyvinylidene fluoride, so that the compact flame-retardant composite polymer electrolyte membrane with high Young's modulus is obtained. The Young modulus of the prepared solid electrolyte membrane is larger than or equal to 9.5 GPa under the thickness of 10 microns, the ionic conductivity is larger than 4 * 10 <-4 > S / cm at the temperature of 25 DEG C, and the capacity retention ratio is 85% or above after 600 cycles at the temperature of 1 DEG C.

According to the present invention, a moderately high polishing speed for a specific material and appropriate ratio of polishing speeds between two or more different materials are achieved in polishing using a polishing composition. The present invention relates to a polishing composition comprising abrasive grains, a water-soluble polymer having no alcoholic hydroxyl group in a side chain, a polyvalent carboxylic acid (salt), and an oxidizing agent, and having a pH of less than 6.

To provide a carboxylate that can produce a resist pattern having excellent mask error factors, a carboxylic acid generator and a resist composition comprising the same.SOLUTION: The present invention discloses a carboxylate illustrated by formula I-4, and a carboxylic acid generator.SELECTED DRAWING: None

The application provides a solid electrolyte membrane and a preparation method thereof, a secondary battery and an electric device. The solid electrolyte membrane of the application comprises the following components: polyvinylidene fluoride or a copolymer thereof, polyimide or a copolymer thereof, an electrolyte salt, and an aminopolycarboxylate. The solid electrolyte membrane is prepared by taking polyvinylidene fluoride or a copolymer thereof as a matrix, and adding polyimide and an aminopolycarboxylate to improve the crystallization performance of polyvinylidene fluoride, so that a dense, high Young's modulus, flame-retardant composite polymer electrolyte membrane is obtained. The solid electrolyte membrane prepared by the application has a Young's modulus of ≥ 9.5 GPa at a thickness of 10 μm, an ionic conductivity of > 4*10 ‑4 S / cm at 25 ℃, and a capacity retention rate after 600 cycles at 1 C, all of which are above 85%.

To provide a carboxylate, a carboxylic acid generator, and a resist composition which allow a resist pattern having good CD uniformity to be produced.SOLUTION: There are provided: a carboxylic acid generator containing a carboxylate represented by formula (I); and a resist composition. [In the formula, L10 represents a single bond or a substituted / unsubstituted hydrocarbon group; R5A and R5B each represent -X1-R10 or the like, and each X1 represents -CO-O-, -O-CO- or the like; R10 represents an acid-labile group; L1A, L1B, L2 and L3 each represent a single bond or a substituted / unsubstituted alkanediyl group; X3 represents -O-, -CO- or the like; Ar1 and Ar2 each represent an aromatic hydrocarbon group; R3 and R6 each represent a fluorine atom, a fluorinated alkyl group or the like; and Z+ represents an organic cation.]SELECTED DRAWING: None

Disclosed is a method for preparing 3-chlorobicyclo[3.2.1]-3-octen-2-ol, which belongs to the field of pharmaceutical technology. The method for preparing 3-chlorobicyclo[3.2.1]-3-octen-2-ol can be achieved by any of the following reaction routes: Reaction route I: 3,4-dichlorobicyclo[3.2.1]-2-octene is esterified in the presence of a carboxylate, and hydrolyzed in a strong base to obtain 3-chlorobicyclo[3.2.1]-3-octen-2-ol; Reaction route II: in the presence of an inorganic salt of strong base and weak acid, 3,4-dichlorobicyclo[3.2.1]-2-octene is reacted in a solvent to obtain 3-chlorobicyclo[3.2.1]-3-octen-2-ol. The present application can result in decreased formation of polymers and impurities, more obvious layering, and improved purification efficiency.

The invention discloses a battery, a positive electrode slurry, a dispersion adhesive and a preparation method thereof, and electric equipment, the battery comprises a positive electrode plate, the positive electrode plate comprises a current collector and a positive electrode material layer arranged on at least one side of the current collector, the positive electrode material layer comprises a positive electrode active material and the dispersion adhesive, the dispersion adhesive comprises a cyano polymer, and the cyano polymer is arranged on the positive electrode active material. The cyano polymer comprises a structural unit A derived from acrylonitrile, a structural unit B derived from butadiene and a structural unit C derived from substituted olefin; wherein the substituted olefin comprises at least one substituent group R ', and R' comprises any one of alkyl, aryl, carboxyl, ester group, carboxylate, acylamino, hydroxyl, alkoxy, amido or ammonium salt. The dispersion adhesive can provide dispersion and adhesion effects at the same time, the dispersibility of the positive electrode slurry is improved, and the uniformity and flexibility of the positive electrode plate are improved, so that the battery has relatively high capacity and stability.

To provide a carboxylate that makes it possible to produce a resist pattern having excellent line edge roughness, a carboxylic acid generator and a resist composition comprising the same.SOLUTION: The present invention discloses, for example, a carboxylate represented by formula (I-1).SELECTED DRAWING: None

The invention relates to the technical field of perfluoro fine chemical engineering, in particular to a method for preparing a perfluoro organic carboxylic acid compound from perfluoro organic carboxylic ester, and particularly relates to a method for preparing a reactive perfluoro organic carboxylic acid compound from perfluoro organic carboxylic ester. The method comprises the following steps: carrying out hydrolysis reaction on perfluorinated organic carboxylate and an alkaline aqueous solution to generate a perfluorinated organic carboxylate solution, drying the generated perfluorinated organic carboxylate solution, preparing a perfluorinated organic carboxylate aqueous solution again, and carrying out ion exchange with hydrogen-type cation exchange resin to convert the perfluorinated organic carboxylate aqueous solution into a perfluorinated organic carboxylic acid aqueous solution. And performing post-treatment on the perfluorinated organic carboxylic acid aqueous solution to obtain the perfluorinated organic carboxylic acid compound. The preparation process of the method does not involve organic solvents such as sulfuric acid, hydrochloric acid and other acidic solutions, and the method has the advantages of simple operation, stable process, high product purity, safety, short reaction time, high yield and the like.

This invention relates to the field of automatic control technology, specifically to a method for stabilizing and controlling the effective chlorine content of sodium hypochlorite solution. During the cooling stage of the sodium hypochlorite solution, an online electrochemical sensor acquires the concentration signal of free trace metal ions in the solution. When the signal reaches a preset threshold of the controller, the controller instructs a peristaltic pump to add a compound stabilizer to the solution. The compound stabilizer is prepared by mixing a specific short peptide containing cysteine ​​and histidine with a silicate buffer solution. After adding the compound stabilizer, the solution undergoes short-term ultrasonic cavitation treatment. This method uses a specific short peptide instead of traditional aminopolycarboxylate salts, avoiding the breaking and failure of carbon-nitrogen bonds under strong oxidizing conditions, preventing secondary release of metal ions that could trigger catalytic decomposition, extending the effective chlorine half-life, and reducing the amount of chlorate byproducts generated.

A process for producing a silver concentrate from metallurgical residues, in particular from residues containing copper, iron, lead, silicon, silver and antimony and optionally containing elements such as arsenic and bismuth, comprising: (i) copper leaching of the metallurgical residues with a first acid solution in order to obtain a first leach solution rich in copper and iron and optionally in arsenic and a first leached sludge having a reduced copper and iron content and optionally a reduced arsenic content and being rich in lead, germanium, silver and silicon, (ii) leaching of the first leached sludge, wherein the first leached sludge is treated with a first solution of a carboxylate in order to obtain a second leached sludge lacking lead and a second leach solution rich in lead, (iii) alkaline leaching of the second leached sludge, wherein a base is added in order to form an alkaline leach solution in order to obtain a third leached sludge having a reduced silicon content and a third leach solution rich in silicon and optionally in arsenic, (iv) hydrochloric acid leaching of the third leached sludge, wherein an acid solution is used in a chloride environment in order to obtain a fourth leached sludge for final disposal and a fourth leach solution rich in silver, copper, lead and iron and optionally in arsenic, (v) precipitation of silver from the fourth leach solution rich in silver, copper and iron and optionally in arsenic with a neutralizing slurry in order to produce a fifth solution rich in chlorides and a first precipitated solid rich in iron, copper, lead and silver and optionally in arsenic, (vi) leaching of the first precipitated solid rich in iron, copper, lead and silver and optionally in arsenic with a sulfuric acid solution in order to produce a sixth leach solution rich in copper, iron and optionally in arsenic and a first silver and lead concentrate, and (vii) leaching of the first silver concentrate with a second carboxylate solution in order to produce a seventh leach solution and a second silver concentrate.

The invention relates to the technical field of aluminum electrolytic capacitor processing, and discloses a branched-chain carboxylate composite high-temperature-resistant aluminum electrolytic capacitor electrolyte and a preparation method thereof. Branched-chain carboxylate ammonium salt with a specific steric hindrance structure is used as a composite main solute; the steric hindrance effect brought by the branched chain structure greatly enhances the thermal stability of carboxylate anions and ammonium ions at a high temperature, the upper limit of the working temperature of the aluminum electrolytic capacitor can be stably increased to 135 DEG C or above, and the branched chain carboxylate can still keep high dissociation degree and ion mobility at a high temperature. The high-temperature ESR of the capacitor can be remarkably reduced by combining the optimally selected high-boiling-point and medium-viscosity solvent combination, the dynamic repair of the aluminum oxide dielectric layer on the surface of the anode foil can be promoted by adding the efficient film forming accelerant, the leakage current of the capacitor at the high temperature is greatly reduced, all the additives play a complementary role around the main solute, and the service life of the capacitor is prolonged. And an efficient and stable high-temperature-resistant electrolyte system is jointly constructed.

Disclosed are compositions containing carbonation-cured cementitious materials and a polyanionic polymer, and methods of making thereof. The carbonation-cured cementitious materials contain calcium silicates and the polyanionic polymer can constitute between about 0.01 wt.% and about 10 wt.% of the compositions, or between about 0.01 wt.% and about 10 wt.% of the calcium silicates. Containing the disclosed compositions have (i) increased compressive strength, (ii) increased flexural strength, (iii) increased carbon dioxide sequestration capabilities, (iv) increased calcite content, (v) reduced total pore area, or a combination of (i)-(v) when compared to a composition made from similar materials that are not carbonation-cured and / or not supplemented with the polyanionic polymer.

Provided is an aqueous inkjet ink that, even when applied to a low-absorbency print substrate, e.g., coated paper, produces printed matter exhibiting no color bleeding due to the coalescence of droplets or white voids, having excellent dot circularity of the droplets, and showing good print density and color reproducibility, and that also has satisfactory ejection stability. The aqueous inkjet ink contains crosslinked-polymer particles (A) including a pigment and a surfactant (B), wherein the crosslinked-polymer particles (A) comprise a product of crosslinking between a compound (A-1) having a plurality of functional groups which react with a carboxy group and / or a carboxylate group and an uncrosslinked polymer (A-2), and the surfactant (B) comprises a polyoxyethylene alkyl ether compound (B-1) having a specific structure, and a nonionic surfactant (B-2) having an HLB value of 1-10, wherein the ratio between the content of the compound (B-1) and the content of the nonionic surfactant (B-2) is defined.

To provide carboxylate, a carboxylic acid generator and a resist composition including the same from which a resist pattern having an excellent mask error factor (MEF) can be produced.SOLUTION: Carboxylate expressed by a formula (I-4100) and synthesized as in the formula is shown, for instance.SELECTED DRAWING: None

The application provides an organic negative electrode and a metal-air battery, the organic negative electrode comprises an organic matter with a low redox potential, the organic matter with the low redox potential comprises phenazine, diquinoxaline phenazine, a nitrogen heterocyclic ring, a carboxylate or an azo compound, the organic matter in the organic negative electrode is corrosion resistant and the redox potential can be adjusted, even reaching a negative reduction potential comparable to that of hydrogen, so that the phenomenon of hydrogen evolution corrosion cannot occur; a large number of functional groups and active sites in the organic matter can induce uniform deposition of metal ions, and there is no condition for dendrite growth and formation of a passivation layer, so that various problems caused by the above metal negative electrode can be completely avoided; the metal-air battery with the above organic negative electrode has the advantages of long cycle time, stable performance, safety, environmental protection and low cost, and has a wide application prospect in the field of large-scale energy storage.

The invention provides high-toughness concrete. The high-toughness concrete is prepared from the following raw materials in percentage by volume: 1.5-2.5% of fibers and the balance of an ultrahigh-toughness concrete matrix, the ultrahigh-toughness concrete matrix is prepared from the following raw materials in parts by weight: 400 to 550 parts of cement, 500 to 600 parts of fly ash, 0 to 200 parts of coarse whiting, 150 to 200 parts of silica fume, 500 to 650 parts of fine aggregate, 230 to 260 parts of water and 8 to 10 parts of polycarboxylate water reducing agent. The invention further provides a preparation method and application, and the high-toughness concrete is poured into the geotextile bag for slope reinforcement and protection. The high-toughness concrete disclosed by the invention has good toughness and high strength, can effectively resist external force impact and deformation and reduce generation of cracks, and can be used for slope reinforcement and protection after being filled into geotextile bags.

The invention relates to an n-p type hydrogel thermogalvanic battery module as well as preparation and application thereof. The n-p type hydrogel thermogalvanic battery module comprises an n type hydrogel thermogalvanic battery and a p type hydrogel thermogalvanic battery, wherein hydrogel in the n-type hydrogel thermogalvanic battery is a network skeleton, the n-type hydrogel thermogalvanic battery is constructed by Fe < 3 + > / Fe < 2 + > redox ion pairs, hydrogel in the p-type hydrogel thermogalvanic battery is a network skeleton, and Fe < 3 + > / Fe < 2 + > and carboxylate are complexed to construct the p-type hydrogel thermogalvanic battery. The n-p hydrogel pyrogalvanic battery module provided by the invention has high thermoelectric performance and can be applied to the field of information encryption.

This invention discloses a polyolefin composite material, its preparation method, and its application. The polyolefin composite material comprises the following components by weight: 88-112 parts polyolefin resin; 0.5-4 parts organic pigment yellow; 0.1-1.5 parts phthalocyanine green; and 1-15 parts dispersing agent. The dispersing agent comprises polar-group grafted olefin polymers and / or aromatic cyclic olefin copolymers. The polar groups in the polar-group grafted olefin polymers include one or more of the following: phosphate ester groups, phosphate groups, sulfonic acid groups, sulfonate groups, carboxylic acid groups, carboxylate groups, amino groups, quaternary ammonium salt groups, amide groups, acrylic acid groups, or maleic anhydride groups. This invention, by adding specific dispersing agents to a high-chroma polyolefin system, obtains a polyolefin composite material with high chroma and good precipitation performance.

The utility model discloses a macromolecule polycarboxylate dispersing agent solid pulverizer which comprises a processing unit, the processing unit comprises a pulverizing tank and a feeding pipe fixedly communicated with the top of the pulverizing tank, the top of the pulverizing tank is fixedly connected with a door-shaped frame, and an electric telescopic rod is fixedly installed on the top of the inner wall of the door-shaped frame; and the bottom of the crushing tank fixedly communicates with a discharging pipe and a crushing unit, the crushing unit comprises a servo motor fixedly connected to the output end of an electric telescopic rod, the side wall of an inner cavity of the crushing tank is fixedly connected with a fixing plate, and one side of the fixing plate is fixedly connected with a cylinder. The blade is driven by the servo motor to rotate so as to smash a polycarboxylate dispersant solid, the blade is far away from the polycarboxylate dispersant solid at the bottom, and the driving component drives the sieve plate to shake, so that the smashed polycarboxylate dispersant solid can be quickly sieved.