38 results about "Cobaltous sulfate" patented technology

The invention belongs to the technical field of magnesium-zinc magnesium alloy surface treatment, and particularly relates to a method for in-situ growth of different blue ceramic film layers on the surface of a magnesium-zinc magnesium alloy. Comprising the following steps that the surface of a magnesium-zinc magnesium alloy sample is polished and cleaned, and then the surface of the sample is sequentially subjected to primary alkali washing, primary water washing, primary acid pickling, secondary water washing, secondary acid pickling, tertiary water washing and secondary alkali washing, so that the pretreated magnesium alloy is obtained; the pretreated magnesium alloy is placed in electrolyte for micro-arc oxidation treatment, and a blue ceramic film layer is generated on the surface of the magnesium alloy in situ; the electrolyte is formed by adding potassium fluotitanate and cobaltous sulfate into a silicate and phosphate composite electrolyte system; or the electrolyte is obtained by adding potassium fluotitanate into a phosphate electrolyte system. Different blue ceramic film layers are prepared, the ornamental value of the magnesium-zinc magnesium alloy component can be improved, and the visual effect is improved.

The invention relates to the field of recycling of lithium ion batteries, and discloses a method for recycling valuable metals in a failed lithium battery. The method comprises the following steps: (1) carrying out reaction on the nickel-cobalt-manganese slag and concentrated sulfuric acid, carrying out water leaching on the obtained slurry, and carrying out solid-liquid separation to obtain a cobalt-manganese leaching solution and nickel slag; (2) extracting the cobalt-manganese leachate, carrying out reverse extraction on the obtained organic phase to obtain a manganese sulfate solution, and then carrying out evaporative crystallization to obtain manganese sulfate; the extracted raffinate is subjected to evaporative crystallization, and cobaltous sulfate is obtained; and (3) the nickel slag obtained in the step (1), an acid solution and hydrogen peroxide are subjected to a catalytic oxidation reaction, an obtained nickel sulfate solution is subjected to electro-deposition treatment, and nickel is obtained. According to the method, the recovery rate and purity of the valuable metal are improved, the recovery process of the valuable metal of the lithium battery is simplified, the whole process is environmentally friendly, near-zero discharge of wastewater is achieved, and the investment cost is low.

The invention discloses application of a microelement complex in a feed additive, which comprises the following steps: mixing fresh kelp and water with the same mass as the fresh kelp, grinding and pulping to obtain kelp slurry, then adding compound enzyme into the kelp slurry, stirring and mixing uniformly, continuously adding boric acid and ammonium molybdate tetrahydrate under a magnetic field condition, stirring and mixing uniformly, and carrying out enzymolysis and chelation under an ultrasonic condition; sequentially adding zinc sulfate heptahydrate, ferrous sulfate heptahydrate, copper sulfate pentahydrate, cobaltous sulfate heptahydrate and manganese sulfate tetrahydrate while stirring, carrying out chelation reaction under a magnetic field condition, and centrifuging to take supernatant, so as to obtain a seaweed chelating solution; then adding maltose into the seaweed chelating liquid, uniformly stirring and mixing, continuously adding sodium selenite, and carrying out chelation reaction under the condition of a high-voltage pulsed electric field; and finally, continuously adding a beta-calcium polymalate aqueous solution under a magnetic field condition, carrying out ultrasonic oscillation treatment, and carrying out spray drying to obtain a complex of trace elements. The obtained complex of the trace elements can be used for preparing a feed additive, raw material sources are safe, and the complex has an obvious promoting effect on animal growth.

The utility model discloses a cobaltous sulfate solution impurity removal recovery device which comprises a treatment box, filter screens are arranged on the two sides of the central axis in the treatment box in a covering mode, the filter screens divide an inner cavity of the treatment box into three cavity sections, the area, away from the face, of the two filter screens is a filter cavity, and the area between the two filter screens is a purification cavity. A water inlet cabin communicated with the filter cavity is arranged at the top of the treatment box, a hollow plate parallel to the filter screen is arranged in the middle of the purification cavity, a plurality of high-pressure scattering spray heads are arranged on the two sides, facing the filter screen, of the hollow plate respectively, and impurities are rapidly separated from meshes of the filter screen under reverse washing and high-pressure pushing; according to the cobalt sulfate solution impurity removal and recovery device, the cleaning sewage is gathered in the filter cavity, and the sewage and impurities are discharged by opening the blow-down valve, so that the problems that the filter screen of the existing cobalt sulfate solution impurity removal and recovery device is often blocked, and the time consumption and the labor cost caused by manual cleaning are effectively solved, and the cobalt sulfate solution impurity removal and recovery efficiency is further improved.

The invention relates to a Fenton-like system for regulating and controlling a Co-N microenvironment based on sulfur (S) and application of the Fenton-like system in efficient degradation of antibiotics. Cobalt sulfate (CoSO4) and cobalt nitrate (Co (NO3) 2) are used as raw materials, and the S-doped Co-N-based catalyst is prepared through high-temperature calcination (100-1200 DEG C). According to the catalyst, the Co-N microenvironment is regulated and controlled through S, the electronic structure and surface active site distribution of the catalyst are optimized, and the synergistic effect of double active sites (Co and N) is achieved. In the Fenton-like reaction, the catalyst can efficiently activate peroxymonosulfate (PMS) to generate various high-activity species (such as < 1 > O2 and high-valence metal), and the degradation efficiency of pollutants is remarkably improved. The catalyst shows excellent degradation performance on tetracycline in a wide pH range (pH 5-9), and the degradation efficiency is remarkably higher than that of a traditional Fenton system. In addition, the catalyst has good stability and reusability, and can still maintain high catalytic activity after being recycled. The S-regulated Co-N microenvironment catalyst and the Fenton-like system thereof provided by the invention have the advantages of simple preparation, mild reaction conditions, high degradation efficiency and the like, can be widely applied to the fields of sewage treatment, industrial wastewater treatment and the like, and provide a new solution for efficient treatment of antibiotic pollution in a water body.

The invention provides a method for removing phosphorus from a cobalt sulfate solution. The method comprises the following steps: providing a cobaltous sulfate solution to be treated; the method comprises the following steps: mixing a to-be-treated cobaltous sulfate solution, a composite polymer soluble ferric salt and a coagulant aid, carrying out precipitation reaction, and separating to obtain phosphorus-containing slag and cobaltous sulfate primary purified liquid; a deep phosphorus removal adsorbent is adopted to adsorb trace phosphorus in the cobalt sulfate primary purification liquid, then trace iron in the cobalt sulfate primary purification liquid generates precipitates in an oxygen-containing atmosphere, and after separation, a cobalt sulfate secondary purification liquid is obtained. According to the method, firstly, the synergistic effect of the composite polymer soluble ferric salt and the coagulant aid is adopted, and primary efficient removal of phosphorus is achieved; then, a deep phosphorus removal adsorbent is used for directionally adsorbing trace phosphorus in the cobalt sulfate primary purification liquid, so that deep removal of phosphorus is further realized; and finally, the residual trace iron is precipitated and separated in the oxygen-containing atmosphere, so that the purity of the secondary purified cobalt sulfate liquid is further guaranteed.

The invention discloses a cobaltous sulfate electroplating solution. The cobaltous sulfate electroplating solution comprises the following components of cobaltous sulfate with the concentration of 4-9 g / L, boric acid with the concentration of 20-40 g / L, an additive B with the concentration of 1-5 g / L and water. Wherein g / L represents the ratio of the mass of each component to the total volume of the cobaltous sulfate electroplating solution; the additive B is one or two of compounds as shown in a formula I and a formula II. When the cobaltous sulfate electroplating liquid is used for micropore cobalt electroplating filling, a high filling deposition rate can be obtained, and the effects that micropores are free of gaps and even in filling are achieved.

The invention discloses a preparation method of nano spherical cobalt powder, and relates to a preparation method of nano spherical cobalt powder for a hard alloy cutter. According to the method, cobalt sulfate and ammonium bicarbonate serve as raw materials, spherical cobalt carbonate particles containing a large amount of complex ammonia are prepared under the low-temperature and high-ammonia synthesis conditions, then the synthesized spherical cobalt carbonate is pulpified through hot pure water, under the action of the hot pure water, the complex ammonia overflows from the interior of the spherical cobalt carbonate particles, and the spherical cobalt carbonate particles are subjected to high-temperature high-ammonia synthesis. The preparation method comprises the following steps: firstly, preparing spherical cobalt carbonate, converting the spherical cobalt carbonate into micron loose cobalt carbonate spherical particles consisting of nano spherical cobalt carbonate particles, then, enabling the micron cobalt carbonate particles to collide with one another and be crushed into nano spherical cobalt carbonate particles in a manner of improving the stirring strength, and reducing the obtained nano spherical cobalt carbonate particles with hydrogen to obtain the nano spherical cobalt carbonate. And the nano spherical cobalt powder product is obtained. The preparation method of the nano spherical cobalt powder is simple in raw materials and process and easy for industrial production.

The invention discloses a high-wear-resistance Co-W composite coating electrolyte based on bifunctional particles as well as a preparation method and an electro-deposition method thereof, and relates to the technical field of material surface engineering. The electrolyte takes water as a solvent, and the mass percent of solutes in an electrolyte system is as follows: 3.59 to 8.07 percent of cobalt sulfate, 6.4 to 14.4 percent of sodium tungstate, 7.69 to 17.3 percent of a complexing agent, 1.92 to 4.32 percent of sodium chloride, 2.56 to 5.76 percent of a buffering agent, 2.56 to 5.76 percent of silicon carbide, 0.07 to 0.15 percent of carbon powder and 0.01 to 0.03 percent of a surfactant. And based on the electrolyte, the high-wear-resistance Co-W composite coating is prepared by adopting an electro-deposition method. By means of the supporting effect of the Co-W alloy matrix and the synergistic interaction of the silicon carbide and carbon powder dual-function particles, the comprehensive performance of the coating is remarkably improved, the whole process is convenient, fast and efficient, and the surface protection requirements of all industrial parts are met.

The invention discloses a soluble organic trace element composition as well as a preparation method and application thereof. The enteromorpha prolifera-montmorillonite nano composite material is specifically prepared from an enteromorpha prolifera extracting solution, a trehalose-montmorillonite nano composite material, boric acid, ammonium molybdate tetrahydrate, zinc sulfate heptahydrate, calcium nitrate tetrahydrate, ferrous sulfate heptahydrate, copper sulfate pentahydrate, cobaltous sulfate heptahydrate, manganese sulfate tetrahydrate, sodium selenite and the like. The composition can be used for preparing feed additives, raw material sources are green and environmentally friendly, the improvement of animal production performance can be obviously promoted, and the composition has very good market popularization prospects.

The present invention relates to the technical field of anti-corrosion treatment of copper-plated welding wires, and particularly relates to a pre-treatment solution for anti-corrosion of copper-plated welding wires, an anti-corrosion electroless plating solution, and an anti-corrosion treatment method. The treatment solution is an aqueous solution containing isopropanol, oxalic acid, benzotriazole, and a surfactant. The electroless plating solution comprises the following raw materials: borax, a composite complexing agent, cobalt sulfate, sodium borohydride, 5,5-dimethylhydantoin, sodium molybdate, sodium borohydride, and hydrazine hydrate. The anti-corrosion treatment method comprises the following steps: immersing the copper-plated solid-core welding wire in the pre-treatment solution at 35-50°C and applying ultrasonic treatment; immersing the copper-plated solid-core welding wire after the pre-treatment in the electroless plating solution at 70-85°C for treatment, cleaning it thoroughly with deionized water, and then drying it. The present invention can improve the corrosion resistance of the welding wire on the premise of basically not affecting the electrical conductivity, thereby solving a series of problems caused by poor corrosion resistance, and having good economic benefits.

The invention relates to the technical field of metal materials, and discloses steel for a pre-nickel-plated battery shell and a preparation method of the steel. The method comprises the steps of hot rolling, coiling, acid pickling, cold rolling, nickel electroplating and continuous annealing. The nickel electroplating process comprises the steps that nickel sulfate, nickel chloride, cobaltous sulfate, boric acid, lauryl sodium sulfate, citric acid, pretreatment filler, nanometer titanium dioxide particles and cerium salt are prepared into electroplating liquid, then the steel matrix obtained after cold rolling is placed in the electroplating liquid to be electroplated, and the concentration of the pretreatment filler is 1.2-1.5 g / L; the concentration of the nano titanium dioxide particles is 0.5 to 1.0 g / L, and the concentration of the cerium salt is 0.1 to 0.2 g / L. The steel for the pre-nickel-plated battery shell prepared by the method has excellent corrosion resistance, relatively high hardness and good stamping performance, the binding force between a nickel-plated layer and a steel substrate is strong, and the surface iron exposure rate is low.

The utility model discloses a reaction kettle for preparing high-purity cobaltous sulfate crystals, which comprises a tank body, feed ports are symmetrically arranged at the top of the tank body, and evaporating tanks and cooling liquid joints are respectively and symmetrically arranged on the inner walls of two sides of the middle part of the inner side of the tank body and two sides of the outer part of the tank body; a first motor is installed at the top of the tank body, the output end of the first motor is connected with a shaft rod, a rotating plate is fixed to the outer side of the top of the shaft rod, and stirring rods are slidably connected to the rotating plate in a penetrating mode at equal angles; a reciprocating screw rod is integrally mounted at the bottom of the shaft rod, a mounting frame is in threaded connection with the outer side of the reciprocating screw rod, a cleaning ring is fixed at the bottom of the mounting frame, and the cleaning ring sleeves the outer side of the centrifugal filter cartridge. When the reaction kettle for preparing the high-purity cobaltous sulfate crystals is used, reactants can be fully mixed and stirred, so that the reaction effect is improved, meanwhile, the centrifugal filter cartridge can be cleaned to prevent blockage, and the influence on later continuous use is avoided.

Drying equipment for cobaltous sulfate production comprises a fixed charging barrel which is obliquely arranged, a roller assembly is arranged in the fixed charging barrel, a feeding assembly is arranged at one end of the fixed charging barrel, and a discharging opening is formed in the bottom of the other end of the fixed charging barrel; the outer side of the roller inner sleeve is provided with a plurality of roller shells with the radiuses increasing in sequence, material flow channels are arranged between the roller inner sleeve and the roller shell on the innermost side and between every two adjacent roller shells, and material screening holes are distributed in the roller shells between the roller shell on the outermost side and the roller inner sleeve. Materials enter the corresponding roller shells in a layered mode after passing through the feeding assembly, the first motor drives the roller shells to rotate, and meanwhile the materials move along the roller shells till the materials enter the discharging opening of the fixed material barrel from one ends of the roller shells. The method is used for preventing agglomerated cobaltous sulfate particles from being not fully dried, and the drying effect of cobaltous sulfate is improved.

The invention discloses an electroplating grinding rod for mobile phone lens machining. The electroplating grinding rod comprises a fixing handle, a connecting part, a first electroplating base body and a second electroplating base body. The fixing handle is installed at the top end of the connecting part, the first electroplating base body is installed at the bottom end of the connecting part, and the second electroplating base body is located at the bottom end of the first electroplating base body. Through the synergistic effect of the cobalt sulfate, the nickel chloride hexahydrate, the nickel sulfate heptahydrate, the lauryl sodium sulfate, the boric acid, the saccharin, the 1, 4-butanediol and the water, the electroplating hardness of the electroplating grinding rod is effectively enhanced, and therefore the service life of the electroplating grinding rod is further prolonged.

The present invention provides a starting material for dry smelting, with which it is possible to efficiently produce a metal that contains a valuable metal, while suppressing the discharge amount of carbon dioxide.　A starting material for dry smelting according to the present invention contains carbon (C) and at least one valuable metal selected from among nickel (Ni) and cobalt (Co), and has a C content of 25% by mass or less and C / (Ni + Co) of 2.5 or less. This starting material for dry smelting can be produced by a method which includes: a step for preparing a starting material that contains carbon and at least one valuable metal selected from among Ni and Co; a first classification step for subjecting the starting material to classification so as to divide the starting material into a coarse grain powder A1 that contains the valuable metal and a fine grain powder A2; and a second classification step for subjecting the fine grain powder A2 to classification so as to divide the fine grain powder into a coarse grain powder B1 and a fine grain powder B2. Specifically, the coarse grain powder A1 and the coarse grain powder B1 are recovered so as to be used as a starting material for dry smelting.

The utility model discloses a kind of precision atomization feeding systems for cobalt sulfate, system includes solution storage tank and is connected in proper order by solution output pipe front filter, precision metering pump, rear filter, pulsation damper, back pressure regulating valve and atomizing nozzle.The solution storage tank outer wall is equipped with jacket, inside is equipped with magnetic stirrer.System is also equipped with the monitoring unit including first pressure sensor and second pressure sensor, flowmeter, and the controller of connecting precision metering pump and back pressure regulating valve, constitute closed loop control.In addition, system integrates the filter backflush unit consisting of backflush inlet pipe, backflush outlet pipe and bypass, and cleaning agent storage tank connected with cleaning agent output pipe.The utility model uses above-mentioned structure, effectively solved the problem of uneven atomization and pipeline blockage, realized the stable, accurate delivery and atomization of coating agent solution.

The invention discloses a cobalt sulfate solution purification copper and nickel removal ion exchange device which comprises a reaction tank, a stirring mechanism is arranged on the inner wall of the upper end of the reaction tank, a separation mechanism is arranged at the lower end of the reaction tank and comprises a separation bin, and a liquid separation cavity is formed in one side of the inner wall of the separation bin. And a solid separation cavity is formed in the other side of the inner wall of the separation bin. The invention belongs to the technical field of ion exchange, and aims to solve the problem that in the prior art, solid and liquid cannot be cleaned out after separation, so that the operation of a device is troublesome. The ion exchange device for purifying and removing copper and nickel from the cobaltous sulfate solution has the technical effects that after separation, solids and liquid can be cleared out more quickly, residual residues and residues generated by ion exchange are convenient to separate from the ion exchange solution, and the efficiency of purifying and removing copper and nickel from the cobaltous sulfate solution is effectively improved.

This invention relates to the field of sodium-ion battery technology and discloses a method for preparing a modified sodium vanadium phosphate cathode material, comprising the following steps: Step 1: Add 1-4g of ammonium metavanadate and 0.8-2.6g of oxalic acid to 50-200mL of deionized water, stir and react at 60-120℃ for 20-80min, and after slight cooling, add sodium phosphate; after stirring, add cobalt sulfate heptahydrate, and then dry and grind the solution to obtain precursor powder. Step 2: Calcine the precursor powder in a high-temperature tubular furnace at 600-1200℃ for 8-24h to obtain the modified sodium-ion battery cathode material powder. This invention uses a chemical synthesis method to prepare the precursor and employs an energy-saving calcination process to prepare a cobalt particle-filled sodium vanadium phosphate cathode material for the first time. This process has the advantages of mild reaction conditions, high product purity, good particle size uniformity, and easy control of the proportion of each component, and can be continuously prepared and synthesized in large quantities.

The utility model discloses an online mixed ternary precursor synthesis control system, and belongs to the technical field of ternary precursor synthesis. According to the utility model, the problems that the conventional ternary liquid preparation process is not intelligent enough and consumes long time are solved. The on-line mixing synthesis control system comprises five groups of medium pipelines and a static mixer, each group of medium pipelines comprises a raw material pipe, a cleaning water pipe, a first conveying pipe, a second conveying pipe, a return pipe and a three-way ball valve, and the three groups of medium pipelines are correspondingly connected with a nickel sulfate solution storage tank, a cobalt sulfate solution storage tank and a manganese sulfate solution storage tank. The three second conveying pipes are connected to an inlet of the static mixer, the other two second conveying pipes are connected to the reaction kettle, and an outlet of the static mixer is connected to the reaction kettle through a third conveying pipe. Five solutions can be conveyed to a synthesis control system at the same time, a ternary liquid preparation tank and a ternary liquid conveying skid body in the prior art are replaced, and the mixing cost is greatly saved.

The invention discloses a preparation method of cobaltous sulfate electroplating liquid. The preparation method of the cobaltous sulfate electroplating solution comprises the following steps: mixing raw materials with the following concentrations to obtain the cobaltous sulfate electroplating solution, the raw materials comprise cobalt sulfate with the concentration of 4-9 g / L, boric acid with the concentration of 20-40 g / L, an additive B with the concentration of 1-5 g / L and water. Wherein g / L represents the ratio of the mass of each component to the total volume of the cobaltous sulfate electroplating solution; the additive B is one or two of compounds as shown in a formula I and a formula II. When the cobalt sulfate electroplating solution prepared by the preparation method is used for micropore cobalt electroplating filling, a relatively high filling deposition rate can be obtained, and the effects that micropores are free of gaps and are uniformly filled are realized.

The utility model discloses a kind of fluidized bed reactors for cobalt sulfate coated positive electrode material, including cylinder, gas distribution system, flow guide system and atomization system. Among them, the bottom of cylinder is equipped with annular gas distribution plate, cyclone air cap is equipped on plate, and distribution plate and cylinder wall form material gap between them;Multiple angle-adjustable flow guide plates are equipped in cylinder, and synchronous adjustment is realized by center shaft and movable sleeve joint;Atomization nozzle is tangentially arranged and with flow guide plate layer position staggered correspondence;Cylinder top is connected with cyclone separator, and its discharge port is communicated with reactor by venturi feeder. The utility model realizes the efficient uniform mixing of cobalt sulfate coating agent and positive electrode material powder by the synergistic effect of cyclone field, adjustable flow guide and staggered atomization, simultaneously solves the problems of material blockage and fine powder recovery, and significantly improves the coating quality and production efficiency of battery material.

The present application belongs to the technical field of magnesium-zinc magnesium alloy surface treatment, and particularly relates to a method for in-situ growth of different blue ceramic film layers on the surface of magnesium-zinc magnesium alloy. The method comprises the following steps: polishing and cleaning the surface of a magnesium-zinc magnesium alloy sample, then sequentially performing first alkali washing, first water washing, first acid washing, second water washing, second acid washing, third water washing and second alkali washing on the surface of the sample to obtain a pretreated magnesium alloy; placing the pretreated magnesium alloy in an electrolyte for micro-arc oxidation treatment to in-situ generate a blue ceramic film layer on the surface of the magnesium alloy; the electrolyte is a fluorotitanic acid potassium and cobalt sulfate added in a silicate and phosphate composite electrolyte system; or the electrolyte is a fluorotitanic acid potassium added in a phosphate electrolyte system. The present application prepares different blue ceramic film layers, which can improve the ornamental property of magnesium-zinc magnesium alloy components and improve the visual effect.

The invention discloses a preparation method and application of a composite material for extracting low-impurity uranium from seawater, and the preparation method comprises the following steps: dissolving ammonium molybdate tetrahydrate in boiling water, and then pouring a cobaltous sulfate heptahydrate solution into the boiling solution; then adding H2O2 while stirring, and continuously boiling; performing low-temperature cold crystallization on the obtained product, and performing low-temperature crystallization on the obtained crystal twice in water to obtain relatively pure CoMo6; the preparation method comprises the following steps: adding CoMo6 into deionized water, then adding thiourea and stirring, then carrying out hydrothermal reaction on the CoMo6 and foamed nickel treated by hydrochloric acid in a reaction kettle, washing the obtained material by using deionized water and ethanol after the hydrothermal reaction is completed, and then drying to obtain the CMOS (at) NSF composite material. According to the present invention, the prepared CMOS (at) NSF composite material has strong UO2 < 2 + > capturing ability, and can effectively capture uranium in seawater, the U (VI) extraction rate of the true seawater uranium by using the CMOS (at) NSF composite material in the self-assembly device reaches 86.67%, and the extraction ability is 2.65 mg / g per day.

The present invention discloses a crystal white porcelain blank and a preparation method thereof, belonging to the technical field of crystal white porcelain blanks. Longyan washed clay, Longyan raw ore, potassium feldspar ore, sodium feldspar ore, high-white washed clay, calcined talc, composite whiskers, quartz powder, zircon sand, yellow cattle bone ash and cobalt sulfate powder are wet ball-milled and mixed in proportion and then screened through a 300-325 mesh sieve. An electromagnetic iron remover is used to remove iron under a magnetic induction intensity of 10,000 Gs to obtain a mixed material; the mixed material is transferred to a vacuum clay kneader and kneaded into clay segments under the condition of a vacuum degree of -0.08 to -0.096 MPa, and the water content of the clay segments is controlled to be 22% to 24%. After aging for 1 to 2 days, the clay segments are kneaded for 1 to 2 h under the condition of a vacuum degree of -0.08 to -0.096 MPa to obtain a crystal white porcelain blank; the crystal white porcelain blank has both good plastic properties and good slip casting properties, which is beneficial to reducing the difficulty in the production system and production management.

The utility model discloses a cobaltous sulfate extraction device. The cobaltous sulfate extraction device comprises a base, a heating part is arranged at the upper end of the base, a mixing box is installed at the upper end of the heating part, a double-shaft motor is arranged on the mixing box, the first output end of the double-shaft motor is connected with a stirring assembly, the stirring assembly comprises a rotating rod connected to the first output end of the double-shaft motor, and the rotating rod is connected into the mixing box in a penetrating mode. A stirring rod is arranged on the outer side of the rotating rod, a scraping plate is connected to the end of the stirring rod, and stirring is conducted through cooperation of the stirring rod and the scraping plate. According to the cobaltous sulfate extraction device, a rotating rod of the stirring assembly rotates, so that a stirring rod on the outer side of the rotating rod stirs a material in the mixing box, the problem that the complexity of a stirrer is increased due to the arrangement of various different paddles is reduced, and the overall mixing efficiency is improved through the arrangement of a scraper; and the problem that the cost is increased due to the fact that more parts are used for mixing is solved, and the maintenance time and cost are reduced.

The utility model discloses a cobaltous sulfate solution extraction device which comprises an extraction cylinder, a transmission mechanism is arranged above the extraction cylinder, the transmission mechanism comprises a stirring shaft used for stirring materials, one end of the stirring shaft is sleeved with a gear, and the other end of the stirring shaft is provided with stirring blades; the gear disc is fixedly arranged below the motor and is meshed with the gear; one end of the connecting rod is connected with an output shaft of the motor, and the other end of the connecting rod is connected with the stirring shaft; the universal ball is located in the center of the isolation plate, and the stirring shaft penetrates through the center of the universal ball. The transmission mechanism is arranged in the extraction barrel, and the stirring shaft is driven by the motor to drive the stirring blades to synchronously rotate in the extraction barrel during use, so that efficient rotation control on the stirring shaft can be realized, liquid in the extraction barrel is fully stirred and mixed, and the mixing efficiency of liquid extraction is improved; the problem of incomplete extraction and precipitation caused by non-uniform mixing is avoided.

The invention discloses a foamed nickel-based heterostructure electro-catalytic material, which is characterized in that thiourea, cobaltous sulfate, sodium hypophosphite and ammonium fluoride are used as reaction raw materials, and the nickel-based electro-catalytic material with a heterostructure is prepared on a foamed nickel substrate through a two-step hydrothermal method; the invention further discloses a preparation method of the foamed nickel-based heterostructure electro-catalytic material and application of the electro-catalytic material. The electrocatalytic material prepared by the two-step hydrothermal method provided by the invention effectively improves the selectivity problem of the foamed nickel-based heterostructure electrocatalytic material in the electrochemical oxidation process of 5-HMF, and realizes higher conversion efficiency, product yield and Faraday efficiency at lower reaction potential.

The high-purity cobalt sulfate washing tower comprises a tower body and a mixing bin fixedly installed at the upper end of the tower body, a material injection opening is formed in the upper end of the mixing bin in a penetrating mode, a double-shaft motor is fixedly installed at the upper end of the tower body, and a rotating plate is fixedly installed at the output end of the lower end of the double-shaft motor; a stirring rod is fixedly mounted at the output end of the upper end of the double-shaft motor, a cam is fixedly mounted on the surface of the stirring rod, and an indirect communication mechanism is arranged on the outer side of the cam. According to the high-purity cobaltous sulfate washing tower, mixed high-purity cobaltous sulfate is fed into the spraying plate through the communicating pipeline, and the spraying plate can spray liquid or gas fed from the feeding pipeline to the lower end, so that a high-purity cobaltous sulfate solution can be mixed with a device needing to be treated; the high-purity cobaltous sulfate liquid sprayed by the spraying plate can be fully sprayed into the tower body through the rotating plate, the high-purity cobaltous sulfate liquid can be comprehensively fed, and the washing effect of the device is improved.

The utility model discloses a battery-grade cobaltous sulfate oil-liquid separator which comprises a shell, and the bottom of the shell is placed on the ground; an impeller is arranged in the shell, the top of the impeller is connected with the inner end of a rotating rod through a bevel gear set, the bevel gear set rotates in the middle of the shell, the outer end of the rotating rod extends into the shell to form a rotating mechanism, and the outer end of the rotating rod is connected with the inner end of a rotating rod through a belt pulley set. And the rotating rod is connected to the interior of the shell through a bearing, the outer end of the rotating rod is in key connection with a cam, and the top of the cam is attached to the bottom of the containing block. The battery-grade cobaltous sulfate oil-liquid separator is provided with the impeller, the impeller is driven to rotate through flowing of cobaltous sulfate oil liquid, then the impeller rotates to drive the cam to rotate, then the cam rotates to drive the filter screen to move, and then blockage of the filter screen can be avoided.