347 results about "Sodium molybdate" patented technology

The invention discloses a film coating agent for accelerating stabilization of a weathering resistant steel rust layer in a severe atmospheric environment. The film coating agent comprises a film-forming agent and a spraying agent, the film-forming agent comprises a gel agent and a transforming agent; the gel is prepared from one or more of tannic acid, carbomer, chitosan and gelatin; the transforming agent comprises one or more of magnesium sulfate, zinc sulfate and sodium molybdate; the spraying agent comprises an accelerant and an aggressive agent; the accelerant comprises one or more of sodium sulfate, potassium sulfate and chromium sulfate; the aggressive agent comprises one or more of sodium chloride, aluminum chloride and sodium fluoride. The film coating agent provided by the invention can form a stable and uniform rust layer on the surface of the weathering resistant steel, so that the corrosion resistance of the weathering resistant steel is improved.

The invention discloses a carbon-doped titanium dioxide nanotube-molybdenum disulfide energy-storage antibacterial material and a preparation method thereof. The preparation method comprises the following steps: carrying out primary anodic oxidation on a clean titanium foil in a mixed electrolyte of ethylene glycol, water and ammonium fluoride; after ultrasonic treatment is carried out in a hydrochloric acid solution for set time, secondary anodic oxidation is carried out, and the mixed electrolyte of the secondary anodic oxidation is the same as that of the primary anodic oxidation; annealing the titanium foil subjected to anodic oxidation twice in an argon atmosphere, putting an annealed sample into a mixed solution of sodium molybdate, a sulfur source and glucose, and carrying out hydrothermal treatment; and the titanium foil subjected to hydro-thermal treatment is cleaned and dried, and the carbon-doped titanium dioxide titanium foil with the surface covered with molybdenum disulfide is obtained. The MoS2-coated carbon-doped titanium dioxide nanotube (TNT-C-atMoS2) with high biocompatibility developed by the invention has a synergistic effect of charge antibiosis and chemical sterilization, so that the problem of intractable biological fouling of a titanium-based metal material in ocean engineering equipment is effectively solved.

The invention relates to the technical field of compound fertilizers, and discloses a boron-zinc-molybdenum synergistic compound fertilizer, which is prepared from the following raw materials in parts by weight: calcium nitrate, ammonium polyphosphate, potassium sulfate, magnesium sulfate, disodium octoborate tetrahydrate, sugar alcohol chelated zinc, sodium molybdate and a synergistic auxiliary agent, the feed additive is prepared from a feed additive, an activator, 5-alginic acid oligosaccharide, aminolevulinic acid, sugar alcohol chelated magnesium, an antagonist, a stress-resistant enhancer and a coating material. According to the boron-zinc-molybdenum synergistic interaction compound fertilizer and the preparation process thereof, the disodium octoborate tetrahydrate, the sugar alcohol chelated zinc and the sodium molybdate are compounded according to a specific proportion, antagonism is avoided through proportion limitation, the synergistic effect of the three elements is remarkably enhanced, and the problem that a single element is insufficient or excessive is solved; chelated elements such as sugar alcohol chelated zinc and sugar alcohol chelated magnesium are combined with an activating agent (humic acid chelated calcium and silica sol) to form a gel-state chelate, so that the trace elements can be prevented from being fixed by soil, and the transfer efficiency of the trace elements in crops is improved.

The invention discloses a fermentation medium for regulating and controlling a clostridium aerovorans target product and a fermentation method of the clostridium aerovorans target product. The medium comprises a basic component and a regulating component, the basic components comprise ammonium chloride, potassium chloride, magnesium sulfate heptahydrate, sodium chloride, monopotassium phosphate, yeast powder, calcium chloride dihydrate, sodium selenite, nickel chloride hexahydrate, biotin, folic acid, pyridoxine hydrochloride, thiamine, riboflavin, nicotinic acid, D-calcium pantothenate, cobalamin, para aminobenzoic acid and lipoic acid; the adjusting component comprises sodium tungstate, ferrous sulfate and sodium molybdate, sodium tungstate and ferrous sulfate have a forward adjusting effect on increasing the yield of acetic acid, ethanol and butanol in the target product, and sodium molybdate has a reverse adjusting effect on the target product. By optimizing the proportion of trace elements in the culture medium, the clostridium metabolism efficiency is improved, synthesis of a target product is regulated and controlled, and the method is particularly suitable for industrial production of acetic acid, ethanol, butanol and the like.

The invention discloses an application of a molybdenum disulfide-based piezoelectric catalytic material in a seawater uranium extraction material, and relates to the technical field of seawater uranium extraction, thiourea and sodium molybdate are used as precursors, and a MoS2 nanoflower with a specific 1T / 2H composite crystal structure is constructed through a hydrothermal synthesis technology. The method is placed in a uranyl nitrate solution, ultrasonic treatment is combined, efficient extraction of uranium can be achieved, and the method has potential application to extraction of uranium from seawater. The method is simple in process and environment-friendly, almost does not generate harmful waste in the synthesis process, does not need complex operation, and has good amplification preparation potential.

The invention discloses a high-dispersion graphene conductive adhesive solution for a battery and a preparation method of the high-dispersion graphene conductive adhesive solution, and belongs to the technical field of conductive adhesive solutions. The high-dispersion graphene conductive adhesive solution for the battery prepared by the invention is prepared from the following raw material components in parts by mass: 6 to 8 parts of high-dispersion graphene, 4.5 to 13.5 parts of an adhesive and 60 to 90 parts of a solvent, the preparation method comprises the following steps: ultrasonically dispersing graphene in a mixed solution of hexadecyl triyl ammonium bromide and deionized water, sequentially adding hexadecyl triyl ammonium bromide, sodium molybdate dehydrate, bismuth nitrate pentahydrate and cerium nitrate hexahydrate, uniformly stirring and dispersing, performing hydrothermal reaction, washing, drying, grinding and sieving to obtain the high-dispersion graphene. The adhesive is prepared from an amphiphilic polyethylene glycol-polycaprolactone block copolymer and amphiphilic polyacrylate.

The invention discloses a three-dimensional multi-interface heterostructure lithium-sulfur battery interlayer, a preparation method thereof and a lithium-sulfur battery, and the preparation method comprises the following steps: placing acidified carbon cloth in a mixed solution of cobalt nitrate, nickel nitrate and hexamethylenetetramine for primary hydrothermal reaction to prepare NiCo2O4 (at) CC; the NiCo2O4 (at) CC is placed in a mixed solution of nickel chloride and sodium molybdate, a secondary hydrothermal reaction is carried out, and NiMoO4 (at) NiCo2O4 (at) CC is obtained; according to the preparation method, NiMoO4-coated NiCo2O4-coated CC is subjected to thermal reduction annealing in a mixed atmosphere of hydrogen and argon, the three-dimensional multi-interface heterostructure lithium-sulfur battery interlayer is prepared, active sites of the three-dimensional heterostructure are increased, the oxidation-reduction reaction efficiency under high sulfur loading capacity is improved, the nano-particle anchored amorphous nanosheets form the multi-interface heterostructure, and the performance of the lithium-sulfur battery is improved. Good chemical adsorptivity and catalytic conversion on polysulfide in the battery are realized, and the cycle life of the battery is prolonged.

The invention discloses a self-template synthesized linear biochar-based bimetallic material as well as a preparation method and application thereof, and belongs to the technical field of carbon materials. The method comprises the following steps: pretreating ganoderma lucidum residues, and pyrolyzing in a nitrogen atmosphere to prepare charcoal; and mixing the prepared biochar with cobalt nitrate and sodium molybdate to prepare CoMoO4 nanoparticles with in-situ growth of the biochar, and then washing and drying to obtain the BC-coated CoMoO4 linear biochar-based bimetallic material. Heterojunctions formed by binding sites of cobalt-molybdenum bimetal and biochar in the material form more defect sites, the synergistic effect of the metal and the micro-nano fibrous biochar is exerted, the degradation rate in the application of catalytic degradation of bisphenol A can reach 98.18% or above, a multiple reaction mechanism with sulfate free radicals is jointly shown, and the photocatalytic degradation of bisphenol A is realized. And the method has higher adaptability and effectiveness for complex pollutants.

The present invention provides a preparation method of high-viscosity hydroxypropyl methylcellulose. A preparation method of high-viscosity hydroxypropyl methylcellulose comprises the following steps: grinding and alkalizing refined cotton cellulose; adding methyl chloride and propylene oxide for etherification reaction; successively adding a crosslinking agent and an aqueous fulvic acid solution for reaction; adding potassium naphthylacetate, sodium sulfite and sodium molybdate and then drying. In the present invention, during the etherification reaction of alkalized cellulose, a crosslinking agent prepared by mixing sodium tetraborate and sodium tripolyphosphate is added for crosslinking reaction, which can reduce the content of water-soluble groups of the prepared hydroxypropyl methylcellulose, achieving the effect of increasing the viscosity of hydroxypropyl methylcellulose. Coating the crop surface with the high-viscosity hydroxypropyl methylcellulose not only has a better surface glazing effect, but also can increase its sugar content.

The invention discloses a chromium-free fingerprint-resistant coating agent for a galvanized steel sheet and a preparation method of the chromium-free fingerprint-resistant coating agent. The chromium-free fingerprint-resistant coating agent is prepared from the following elements in percentage by mass: 1%-5% of sodium molybdate or / and sodium tungstate, 0.5%-2% of a phytic acid-chitosan compound, 0.3%-1.0% of a chelating titanate coupling agent, 2%-5% of fluorosilane modified nano SiO2, 30%-55% of waterborne hyperbranched polyurethane resin, 0.5%-2% of oxidized polyethlene wax and the balance of deionized water. The chromium-free fingerprint-resistant coating agent disclosed by the invention has excellent fingerprint resistance, high adhesive force and environmental protection property, is free of white rust in neutral salt mist for 150 hours and red rust in neutral salt mist for 360 hours, the white rust area is less than 5%, the industrial requirements of galvanized steel sheet surface treatment are met, and the problem of environmental risk in the prior art is avoided by adopting the combination of bio-based corrosion inhibitors.

The invention discloses an anti-sulfate-attack preparation method of solid waste concrete, and relates to the technical field of building materials and civil engineering, the anti-sulfate-attack solid waste concrete is prepared from the following materials in parts by weight: 100 parts of cement, 30-50 parts of composite solid waste cementing material, fly ash, steel slag micro powder and coal gangue according to a given mass ratio, 60-80 parts of modified recycled aggregate; 0.05-0.1 wt% of sodium molybdate as an erosion inhibitor. According to the invention, solid waste activation-interface reconstruction-ion competition-structure self-healing is taken as a core, synchronous spanning of solid waste concrete in the dimensions of sulfate erosion resistance, resource consumption, construction convenience and the like is realized through multi-process collaboration, and the gelation potential of solid wastes such as fly ash and steel slag is accurately excited through microwave targeted activation, so that the construction efficiency is improved. And a dense microstructure is reconstructed by combining a nano-SiO2 induced crystallization technology, so that excellent mechanical properties are still ensured when the solid waste mixing amount exceeds 70%.

The invention provides a new energy automobile battery flexible disassembling adhesive and a preparation method thereof, and belongs to the technical field of new energy automobile batteries, the flexible disassembling adhesive comprises the following components by weight: 45-50 parts of deionized water; 8 to 10 parts of gamma-butyrolactone; 5 to 8 parts of propylene glycol methyl ether acetate; 2 to 3 parts of microencapsulated lipase; 2 to 3 parts of nano cellulose immobilized protease; 6 to 8 parts of urea peroxide; 0.5 to 1 part of nano manganese dioxide; 0.7 to 1.1 parts of a sodium citrate / sodium lactate buffer solution; 1.5 to 2.5 parts of polyvinylpyrrolidone K30; 0.8 to 1.2 parts of hydroxypropyl methyl cellulose; 0.05 to 0.1 part of a graphene oxide nanosheet; 0.5 to 0.8 part of a benzotriazole derivative; 0.1 to 0.3 part of sodium molybdate; 6 to 8 parts of sorbitol; and 5-7 parts of ascorbic acid. The flexible disassembly adhesive solves the problems of low efficiency, serious environmental pollution, high safety risk and low material recovery rate in traditional battery disassembly.

According to the low-temperature plasma activated water preparation system, the preparation method and the application, a direct-current voltage-driven air jet plasma generation device which is small and convenient and does not need a complex gas circuit is utilized in the preparation system, and air is adopted as working gas to treat an aqueous solution; an aqueous solution rich in active oxygen, active nitrogen and other active ingredients is efficiently generated, and the active ingredients have high oxidation-reduction potential and can effectively degrade PhSMe. The concentration of active particles in PAW is improved by optimizing the discharge voltage, the discharge time and the concentration of the sodium molybdate solution, so that the degradation effect of PhSMe is improved. An auxiliary agent sodium molybdate is introduced in the degradation process, and the degradation effect is two times higher than the pure PAW treatment effect.

The application provides a weathering steel surface rust layer stabilizing treatment agent for industrial atmospheric environment, and the chemical composition of the weathering steel surface rust layer stabilizing treatment agent is as follows in terms of mass fraction: 25-45% of acrylic resin, 2.0-6.0% of chromium sulfate, 3.0-8.0% of ferrous oxide, 2.0-6.0% of ferric oxide, 0.5-3.5% of copper sulfate, 0.3-1.5% of sodium bisulfite, 1.0-6.0% of sodium molybdate, 0.5-3.5% of nickel sulfate, 2.0-5.0% of potassium phosphate, 0.05-0.5% of surfactant, 0.05-0.5% of defoaming agent, 0.05-0.5% of dispersing agent, 0.05-0.5% of thickening agent, and the balance is water, wherein the amount of plasticizer added is 2-5% of the resin. The stabilizing treatment agent in the application can promote the weathering steel surface to form a stable and dense rust layer within 0.5-1 year after the surface of the weathering steel is treated before use.

The invention relates to the technical field of epoxy resin coatings, and particularly discloses a low-corrosion snow-melting and deicing coating and a preparation method thereof. The low-corrosion snow-melting and deicing coating comprises a component A, a component B and a component C in a mass ratio of 100: (40-50): (90-100), and the component A comprises the following raw materials: 100 parts of epoxy resin, 15-25 parts of a polyurethane elastomer, 2-5 parts of an epoxy reactive diluent, 0.5-1 part of a defoaming agent, 2-5 parts of a silane coupling agent and 30-50 parts of a microcapsule snow-melting agent; the component B comprises the following raw materials in parts by weight: 40-60 parts of a polyamide curing agent and 5-10 parts of phytic acid; the component C comprises a reinforcing filler; the microcapsule snow-melting agent comprises a core material and a polyurethane wall material wrapping the core material, wherein the core material comprises potassium acetate and sodium molybdate in a mass ratio of 100: (2-4). According to the invention, the slow release effect of the snow-melting agent in the snow-melting and deicing coating can be improved, and the coating has excellent low corrosion and cracking resistance.

The present invention provides a method for preparing high-purity molybdenum trioxide, belongs to the technical field of molybdenum trioxide production, and comprises the following steps: step S1, molybdenum ore is crushed and ground, roasted, crude molybdenum oxide is obtained, added to sodium hydroxide solution, heated and stirred, filtered, and crude sodium molybdate solution is obtained; step S2, the crude sodium molybdate solution is adjusted to pH 5.5-7.0, an exchange column of macroporous cation exchange resin is passed, and the solution pH is adjusted to 7.0-8.5, and an exchange column equipped with anion exchange resin is passed to obtain a high-purity sodium molybdate solution; step S3, excessive ammonia water is added to the high-purity sodium molybdate solution, ammonium molybdate is precipitated, washed, and dried to obtain high-purity ammonium molybdate; step S4, high-purity ammonium molybdate is put into a rotary calcining furnace, the inner wall of the furnace tube is sprayed with rare earth oxide, and a calcination mode of first heating, then cooling, and then heating is adopted to prepare high-purity molybdenum trioxide. The present invention realizes the purpose of producing high-purity molybdenum trioxide.

The present invention provides a method for producing a molybdenum-vanadium-aluminum-chromium alloy with high uniformity. The composition of the molybdenum-vanadium-aluminum-chromium alloy is as follows: Mo 25% - 28%, V 24% - 27%, Cr 28% - 31%, with the balance being Al, O ≤ 0.05%, C ≤ 0.05%, and the segregation of the main content being < 0.6%. It relates to the field of metallurgical technology. The technological steps are as follows: (1) Prepare an ammonium molybdate-ammonium dichromate-ammonium metavanadate precursor by hydrothermal method using sodium molybdate, sodium metavanadate, sodium dichromate, and ammonium chloride; (2) Perform high-temperature treatment on the precursor to obtain a MoO3 / V2O5 / CrO3 composite material; (3) Mix the MoO3 / V2O5 / CrO3 composite material, refined aluminum powder, and calcium oxide in proportion, load them into a furnace and ignite to undergo a thermite reaction to obtain a molybdenum-vanadium-aluminum-chromium alloy ingot. Compared with the molybdenum-vanadium-aluminum-chromium alloy produced by the traditional thermite method, the uniformity of the present invention is greatly improved, and it can be used for the production of titanium alloys such as TB2, TB9, TB15, and TB16.

The invention relates to the technical field of PE pipes, in particular to a PE pipe and a preparation method thereof. The PE pipe is prepared from, by weight, 40-60 parts of polyethylene, 6-8 parts of filler, 4-6 parts of auxiliaries, 4-6 parts of silicon dioxide, 2-4 parts of stabilizer and 2-4 parts of antioxidant. According to the invention, the filler is added in the preparation process of the PE pipe, and the coconut shell forms a porous carbon structure after being carbonized and ground, so that the interface bonding force between the materials can be effectively enhanced, and the coconut shell is uniformly dispersed in a PE matrix to bear part of external force and play a role in structure enhancement; thiomolybdate ions generated by thioacetamide and sodium molybdate can uniformly precipitate and grow on the surface and in pores of the coconut shell powder, and are tightly combined with the coconut shell powder, so that the structural stability of the PE pipe is effectively improved.

The invention discloses food-grade metal surface blackening liquid as well as a blackening process and application. The blackening liquid comprises a basic blackening component and a modified graphene solution, wherein the basic blackening liquid comprises 15-25 g / L of sodium pyrophosphate, 8-12 g / L of sodium molybdate, 20-30 g / L of sodium gluconate, 2-5 g / L of sodium erythorbate, a citric acid / sodium citrate buffer solution, 10-15 ml / L of polyethylene glycol and 0.5-1 ml / L of polysorbate 80; the modified graphene is PEI modified graphene oxide. According to the method, stubborn dirt is cleaned and peeled off through ultrasonic waves, and grease is degraded through photocatalysis of nano TiO2, so that the surface hydrophilicity is improved, and the adsorption uniformity of blackening liquid is enhanced; according to the method, Si-O-Si network crosslinking is optimized through staged heating (80 DEG C to 120 DEG C to 140 DEG C), the hardness and the adhesive force are improved, thermal stress concentration in a traditional process is avoided, meanwhile, raw material decomposition can be avoided at the temperature, and the safety of blackening liquid is further guaranteed.

The invention discloses an environment-friendly corrosion-resistant metal material coating and a preparation method thereof. According to the invention, the waterborne polyurethane resin is adopted as a matrix, and the modified chitosan, the sodium molybdate phytic acid compound and other biological bases and a chromium-free corrosion inhibition system are combined, so that the use of benzene solvents, hexavalent chromium and other toxic substances in the traditional paint is avoided from the source. Through construction of a graphene oxide composite titanium dioxide heterojunction, the coating triggers a photocatalytic reaction under visible light, surface pollutants can be decomposed, the electron migration activity of a metal interface is reduced, and the neutral salt mist resistance time is made to break through 3000 hours and is increased by three times or above compared with a conventional epoxy coating. A dual intelligent response mechanism formed by the matrine microcapsules and the modified chitosan can quickly release corrosion inhibition factors and dynamically repair microcracks at the initial stage of corrosion, so that stable protection of the coating in a corrosion medium with a wide pH range of 2-12 is realized, and the service life of a metal substrate in extreme environments such as ocean and chemical engineering is remarkably prolonged.

The invention relates to the technical field of circulating water corrosion inhibition, in particular to an industrial circulating water corrosion inhibitor and a preparation method thereof.The industrial circulating water corrosion inhibitor is prepared from sodium hexametaphosphate, hydroxyethylidene diphosphonic acid, amino trimethylene phosphonic acid, sodium gluconate, sodium polyacrylate, zinc sulfate, benzotriazole, polyaspartic acid, sodium molybdate and deionized water, and the industrial circulating water corrosion inhibitor is prepared from, by weight, sodium hexametaphosphate, hydroxyethylidene diphosphonic acid, amino trimethylene phosphonic acid, sodium gluconate, sodium polyacrylate, zinc sulfate, benzotriazole, polyaspartic acid, sodium molybdate and deionized water. By compounding various corrosion inhibition components such as sodium hexametaphosphate, hydroxyethylidene diphosphonic acid and amino trimethylene phosphonic acid, the composite corrosion inhibitor with a synergistic corrosion inhibition effect is formed, excellent corrosion inhibition performance can be provided under various working conditions, and the corrosion inhibitor does not generate harmful byproducts in the use process, is environment-friendly, and is suitable for industrial production. The corrosion inhibitor has good compatibility with other water treatment agents and can be jointly used in a circulating water system, and the overall performance of the system is improved.

The invention relates to an electroplated coating protective agent and a preparation method thereof, and belongs to the technical field of electroplated coating protective agents, and the protective agent comprises the following raw materials: main salt, auxiliary salt, a composite complexing agent, 1-docosanethiol, a sealing agent, absolute ethyl alcohol and deionized water. The succinic acid, the N-sodium lauroyl sarcosinate and the citrazinic acid are used as the composite complexing agent, and starting from different aspects of activating the surface of the coating, accelerating the growth of the protective film layer and increasing the compactness of the protective film layer, the prepared protective agent can effectively improve the corrosion resistance effect of the coating; and the added 1-docosanethiol is used for reducing the defect area of the protective film layer and further effectively improving the corrosion resistance of the protective film. Besides, chromic nitrate is used as a main salt, cerous sulfate and sodium molybdate are used as auxiliary salts, and sodium silicate is used as a sealing agent, so that the prepared protective agent can effectively have remarkable salt spray resistance, and meanwhile, the appearance quality of a formed film layer can also be improved.

The invention discloses a novel modified flame-retardant polyethylene material, and belongs to the technical field of flame-retardant materials.The novel modified flame-retardant polyethylene material is prepared by the steps that S1, cobalt nitrate hexahydrate, sodium molybdate and urea are added into deionized water, washed with water and ethyl alcohol respectively, separated and dried, and CoMo-L nanosheets are obtained; s2, the CoMo-L nanosheet is calcined in N2 / NH3 mixed gas, and a cobalt molybdenum nitride nanosheet is obtained; s3, adding the cobalt molybdenum nitride nanosheet into deionized water, stirring, adding magnesium nitrate hexahydrate, aluminum nitrate nonahydrate and urea, separating and drying to obtain a CoMoN / Mg-AlLDH heterojunction flame retardant; s4, adding a product prepared in S3 into the carbon nanotube dispersion liquid, stirring, filtering and drying to obtain a pretreated flame retardant; and S5, carrying out melt blending on the pretreated flame retardant, the antioxidant and the modified polyethylene, and carrying out extrusion granulation to obtain the novel modified flame-retardant polyethylene material. The flame-retardant material prepared by the invention has good flame retardant property and mechanical property.

The invention relates to a preparation method of a functional polymer coating for an exposed framework type oil seal, which mainly comprises the following steps: taking zinc nitrate hexahydrate (Zn (NO3) 2.6 H2O), 2-methylimidazole (2-Melm), hexagonal boron nitride (h-BN) and sodium molybdate dihydrate (Na2MoO4. 2H2O) as raw materials; a zeolite imidazate framework MOFs (ZIF-8) is grown on the surface of h-BN in situ through an in-situ growth method, and sodium molybdate is added as a corrosion inhibitor to be coated in the ZIF-8 to obtain the composite anticorrosive filler Na2MoO4 ZIF-8 / h-BN (recorded as MZB). Epoxy resin and a curing agent are uniformly dispersed with MZB according to the proportion of 3: 1, and the mixture is sprayed on the surface of the framework. After the anti-corrosion coating is sprayed on the oil seal framework, a performance experiment is carried out, and the corrosion condition of the surface of the framework is observed. According to the coating, the service life of the metal framework is prolonged by forming a passive film, the cruising ability of the oil seal is enhanced, and the safety of an engine is improved.

The invention belongs to the technical field of electrochemical energy storage, and discloses an electrolyte for a zinc-bromine flow battery, a preparation method of the electrolyte and the zinc-bromine flow battery, raw materials of the electrolyte comprise the following components: zinc salt, potassium salt, an additive and a solvent; the potassium salt is a compound mixture of potassium bromide and potassium bromate; the additive comprises an organic complexing agent and an inorganic corrosion inhibitor; wherein the organic complexing agent comprises an organic zinc complexing agent and an organic bromine complexing agent; the organic zinc complexing agent is crown ether; the organic bromine complexing agent is imidazole bromine salt or pyridine bromine salt; the inorganic corrosion inhibitor is a compound of sodium molybdate, zinc sulfate, sodium dihydrogen phosphate and deionized water; growth of zinc dendrites can be remarkably inhibited, the energy density of the battery is improved, and escape of hydrogen bromide is effectively prevented, so that the performance and the stability of the zinc-bromine flow battery are comprehensively improved, the service life of the battery is prolonged, and the use cost and the safety risk of the battery are reduced.

The invention belongs to the technical field of metal material plating, and particularly relates to a connector surface composite coating and a preparation process thereof, and the preparation process comprises the following steps: adding modified carbon black and sodium molybdate into deionized water, stirring to obtain a corrosion inhibition material, and mixing with modified zinc oxide to obtain a mixed filler; the preparation method comprises the following steps: adding dibutyltin dilaurate and toluene diisocynate into polypropylene glycol to obtain a core material; adding hexadecyl trimethyl ammonium bromide and the mixed filler into a 93-96 wt% ethanol solution, adding the core material for emulsification, adding an isophorone diisocyanate solution, and stirring to obtain a microcapsule; nickel sulfate hexahydrate, nickel chloride hexahydrate, sodium citrate, boric acid, a surface dispersant, a sodium hydroxide solution and microcapsules are added into deionized water to be mixed, and an electroplating solution is obtained; and putting the connector into the electroplating solution for electroplating to obtain the composite coating. The expansion of pitting corrosion can be inhibited, and the long-term use reliability and stability of the connector in a marine environment are improved.

The preparation process comprises the following steps: connecting an aluminum alloy with an anode of a micro-arc oxidation alternating current power supply, and immersing the aluminum alloy in an electrolytic solution in a stainless steel electrolytic bath; the stainless steel electrolytic bath is connected with a cathode of the micro-arc oxidation alternating current power supply; the surface of the aluminum alloy is subjected to micro-arc oxidation treatment, and an Al2O3 / MoS2 / CePO4 composite ceramic film layer is constructed on the surface of the aluminum alloy in situ; wherein the electrolytic solution comprises a solvent, which is deionized water; the solute comprises the following components in parts by mass in each liter of solvent: 15 parts of sodium hexametaphosphate, 10 parts of EDTA-2Na (Ethylene Diamine Tetraacetic Acid), 5 parts of sodium molybdate, 10 parts of sodium sulfide and 5-12.5 parts of cerium acetate. According to the preparation process of the high-wear-resistance and high-corrosion-resistance micro-arc oxidation composite film layer, the high-wear-resistance and high-corrosion-resistance composite ceramic film layer is constructed on the surface of the aluminum alloy in situ, and the wear resistance and the corrosion resistance of the surface of the aluminum alloy are improved.

The present application relates to the technical field of ammonium molybdate preparation, and specifically discloses a production process of ammonium molybdate. A production process of ammonium molybdate comprises the following preparation steps: (1) roasting and impregnating molybdenite to obtain a leachate; (2) mixing the leachate and a chelating purifier, filtering the mixture, and passing the filtrate through an ion exchange resin to obtain a sodium molybdate solution after elution; (3) crystallizing the sodium molybdate solution to obtain ammonium molybdate. The ammonium molybdate prepared by the present application has the advantages of low impurity content and high purity.

The invention relates to an additive for improving refrigeration efficiency of liquid water and a production process thereof, and belongs to the technical field of water additives. The additive comprises 70-80 parts by weight of a carrier, 3-6 parts by weight of modified sophorolipid, 1-2 parts by weight of sodium polyacrylate and 0.5-1.5 parts by weight of sodium molybdate, the carrier is of a core-shell structure, the core of the carrier is nano-copper, and the shell of the carrier is hydrophilic mesoporous silica doped with carboxylated carbon nanotubes; according to the additive prepared by the invention, the refrigeration efficiency of water is improved through the interaction among the carrier, the surfactant and liquid water.

The invention provides a preparation method of a Mo-doped FeSe2 electrode material and application of the Mo-doped FeSe2 electrode material as a sodium-ion battery anode, and the preparation method comprises the following steps: mixing FeCl3. 6H2O, terephthalic acid and N, N-dimethylformamide, loading into a reaction kettle, and heating at high temperature to obtain an MIL-88B metal organic framework precursor; and then dispersing the MIL-88B precursor, sodium molybdate, selenium powder and hydrazine hydrate in a solvent, and doping Mo atoms into a FeSe2 electrode material through hydrothermal synthesis to obtain the Mo-FeSe2 sodium ion battery anode. According to the preparation method, Mo atoms are doped into FeSe2, so that the strength of Fe-Se bonds is enhanced, the structure collapse effect of the electrode material is effectively relieved from the structure level, an SEI film on an electrode liquid interface is compact and uniform, and the multiplying power and the cycle service life of the electrode material are effectively improved.