209 results about "Raney nickel" patented technology

The invention discloses an alkaline electrolytic water hydrogen evolution electrode, a preparation method thereof and an electrolytic bath based on the electrode. The electrode comprises a nickel net base material, raney nickel located on the nickel net base material and a catalytic layer which is electrochemically deposited on the surface of the raney nickel to cover a zigzag edge to form a smooth surface. The catalytic layer is a platinum catalytic layer, a nickel-sulfur alloy catalytic layer, a nickel-cobalt-zinc layer or a nickel-iron-zinc layer, and an electroplate liquid for electrochemical deposition comprises sulfosalicylic acid. According to the electrolytic cell, an alkaline electrolytic water hydrogen evolution electrode is used as a cathode, and Raney nickel / nickel net is used as an anode. According to the alkaline electrolytic water hydrogen evolution electrode, the catalyst layer which is high in binding force with the base material is deposited on the Raney nickel / nickel net base material in a specific electrochemical deposition mode, and the catalyst layer can effectively cover the sawtooth-shaped edge of the surface of the electrode and keep a part of the original high-specific-surface-surface structure of Raney nickel at the same time; the catalytic performance of the electrode is improved, and the overpotential of the electrode under 100mA / cm < 2 > can be lower than 241mV.

The invention provides a Raney nickel electrode preparation method which comprises the following steps: 1, taking nickel powder with the particle size of 15-75 microns, nickel powder with the particle size of 75-150 microns and aluminum powder with the particle size of 15-75 microns, pouring the nickel powder, the nickel powder and the aluminum powder into a mixer, uniformly mixing without segregation phenomenon, and enabling the nickel powder, the nickel powder and the aluminum powder to respectively account for 70%-79%, 1%-10% and 20%; secondly, a plasma spraying technology is adopted, the temperature is regulated and controlled, so that the nickel powder and the aluminum powder with the particle size being 15-75 micrometers reach a molten state, and the nickel powder with the particle size being 75-150 micrometers reach a semi-molten state; spraying to a nickel net, and activating, cleaning and cutting to obtain a Raney nickel electrode; the nickel powder and the aluminum powder with different particle sizes are reasonably matched in the powder formula, the particle flying speed in spraying is properly increased, the spraying temperature is balanced, the powder with different particle sizes reaches different molten states, and therefore the large-particle nickel powder forms a good support in the coating, the bonding strength of the coating is remarkably improved, and the service life of the coating is prolonged. And the catalyst is not easy to fall off in the use process, so that the efficiency and the stability of the water electrolysis hydrogen production equipment are improved.

The invention discloses application of a Ni-based reverse-phase catalyst in catalytic hydrogenation reaction of a nitro compound, nitro in the nitro compound is hydrogenated to reduce amino, the Ni-based reverse-phase catalyst is of an M / Ni reverse-phase structure, metal Ni for dissociating hydrogen serves as a carrier, nano metal M oxide is loaded on the carrier to serve as a loading phase, and reverse-phase interface active sites are constructed; wherein the metal M is one or two of Ce, Zr, Al, Y and Mg, and the mole fraction of the load phase metal M is 5-50% based on the mole fraction of all the metals in the catalyst being 100%. The preparation method of the catalyst is simple and easy to implement, the catalyst has a non-traditional supported reversed-phase structure, the activity of the catalyst is more excellent than that of a traditional supported catalyst when the catalyst is applied to the nitro-compound hydrogenation process, a traditional Raney nickel catalyst can be effectively replaced, a reaction system is clean and safe, repeatability is good, effective recycling can be achieved, and the catalyst is suitable for industrial production. The method is suitable for industrial production and has a good application prospect.

This water electrolysis electrode comprises a substrate and a catalyst portion. The catalyst portion includes Raney nickel particles and metal particles that contain nickel as a main component. The metal particles are in contact with the Raney nickel particles and include aluminum. The ratio of the total number of moles of aluminum to the total number of moles of nickel in the Raney nickel particles is greater than the ratio of the total number of moles of aluminum to the total number of moles of nickel in the metal particles.

The invention provides a catalyst, a preparation method and application thereof, and a method for preparing primary amine by catalyzing nitrile compound hydrogenation, and particularly relates to the technical field of catalyst synthesis. The catalyst comprises a nickel / cobalt-based catalyst and a metal salt; wherein the nickel / cobalt-based catalyst is selected from any one of a supported nickel / cobalt-based catalyst, a Raney nickel / cobalt catalyst or a nickel / cobalt nanocrystal; the metal salt comprises any one or a combination of at least two of tungsten salt, molybdenum salt, vanadium salt, aluminum salt and cerium salt. The metal salt and the nickel / cobalt main catalyst have a synergistic effect: the surface electron density is adjusted through electron transfer, the hydrogen dissociation and cyano adsorption activation capacities are enhanced, the hydrogenation activity is improved, and the mild condition reaction is assisted; the surface chemical environment is changed or steric hindrance is borrowed, the primary amine selectivity is improved, and byproducts are inhibited; aluminum salt, cerium salt and the like inhibit nickel / cobalt agglomeration, increase active sites, enhance stability, prolong the service life and reduce the dosage.

The invention provides a spraying-free Raney nickel electrode preparation method, a Raney nickel electrode and hydrolysis hydrogen production equipment, and relates to the field of Raney nickel electrodes. The preparation method comprises the following steps: mixing raw materials including aluminum powder, a dispersing agent, a binder and water to obtain raney nickel electrode slurry; coating the Raney nickel electrode slurry on a nickel net and drying to obtain a pretreated electrode; calcining the pretreated electrode net under inert gas protection or a vacuum condition to obtain an unactivated nickel-aluminum alloy net; and activating the unactivated nickel-aluminum alloy net to obtain the Raney nickel electrode. According to the preparation method provided by the invention, the precursor of the Raney nickel electrode is prepared in a slurry brushing manner, so that the consumption of powder is greatly reduced, and waste is reduced. A nickel-aluminum alloy phase is grown on the nickel net in situ in a powder metallurgy mode, and the nickel-aluminum alloy has very excellent binding force.

The present invention relates to the technical field of benzoxazine resins, and discloses a halogen-free copper-clad laminate substrate material containing flame-retardant modified benzoxazine resin and a preparation method thereof, wherein the present invention utilizes 1,2,4,5-benzenetetramine and phosphorus oxychloride to carry out chlorination reaction to obtain intermediate product 1, and then it is subjected to substitution reaction with p-hydroxybenzaldehyde to obtain intermediate product 2, and the aldehyde group contained therein is subjected to Schiff base reaction with 3-aminophenoxyphthalonitrile to obtain intermediate product 3, and under the catalytic reduction of Raney nickel, phosphorus-containing polyamine is obtained, and finally it is subjected to Manniene reaction with bisphenol A and polyformaldehyde to obtain a flame-retardant modified hyperbranched benzoxazine resin, and finally it is stirred and mixed evenly with E-51 epoxy resin, N, N-dimethylbenzylamine, etc., and coated on glass fiber cloth, and cured to obtain a halogen-free copper-clad laminate substrate material containing flame-retardant modified benzoxazine resin. The halogen-free copper-clad laminate substrate material prepared by the present invention has good flame retardancy, thermal stability and mechanical properties.

The invention belongs to the field of electrode materials, and particularly relates to an alkaline hydrogen production electrode and a preparation method thereof.The alkaline hydrogen production electrode comprises an electrode substrate and a catalyst loaded on the electrode substrate; the catalyst comprises the following components: Ni, Fe, Mo, Cr and Mn, the molar percentage of Mo is 5-15%, and the total molar percentage of Fe and Mo is 35%. By alloying, introducing Mo and controlling the content of Fe and Mo, the catalytic activity is enhanced, compared with existing binary Raney nickel, the catalytic activity is higher, the HER reaction overpotential can be effectively reduced, so that the energy consumption of an electrolytic bath is reduced, and the corrosion resistance of an electrode can be enhanced through Cr and Mn.

The invention discloses a method for preparing a Raney nickel electrode through electro-deposition of nickel-zinc alloy and application. The method comprises the steps that a nickel-based substrate is pretreated; the pretreated nickel-based substrate serves as a cathode, an electrochemical deposition reaction is carried out in an electrolytic bath containing electroplating liquid, and the electroplating liquid comprises nickel salt and zinc salt; carrying out heat treatment on the nickel-based substrate subjected to electrochemical deposition; and activating the nickel-based substrate subjected to heat treatment to remove the zinc element to obtain the Raney nickel electrode. According to the Raney nickel electrode, valence electrons can be redistributed by depositing the nickel-zinc alloy phase on the nickel substrate, so that electron transmission is accelerated, and the conductivity of the electrode is improved; the nickel-zinc alloy is slow and uniform in reaction in the activation process, nickel-zinc crystal nucleuses can be uniformly nucleated and grow, and a uniform pore structure can be formed after activation, so that the active area of the catalyst is greatly increased, and the hydrogen reaction rate is increased.

The invention relates to the technical field of surfaces, in particular to an efficient water electrolysis hydrogen production catalyst material, a coating, a preparation method and application of the efficient water electrolysis hydrogen production catalyst material, the coating, the preparation method and the application of the efficient water electrolysis hydrogen production catalyst material. The invention further provides a preparation method of the Ni, Cu, Mo, Cr, polybenzoate and boron nitride composite powder and a method for preparing a high-efficiency catalyst coating from the composite powder. Compared with traditional Raney nickel, the high-efficiency catalyst coating prepared by the method has the advantages that the current density is greatly improved, and the high-efficiency catalyst coating does not contain precious metal, is controllable in cost, and is relatively good in durability.

The invention relates to the technical field of catalysts, and discloses a preparation method of a Raney nickel catalyst for hydrogenation of 2-methyl glutaronitrile, which comprises the following steps: (1) crushing a raw material alloy NiAlX into powder; x is one or more of Mo, Fe and Cr; (2) the alloy powder is added into alkali liquor, ultrasonic treatment is conducted while stirring is conducted, then heating leaching and filtering are conducted, and a solid is obtained; and (3) adding the solid into a titanium source-containing aqueous solution for soaking treatment, and filtering to obtain the Raney nickel catalyst. The Raney nickel doped with the metal element X is used as the carrier, the titanium-source-containing aqueous solution is introduced for load modification, a large number of active sites are uniformly distributed on the surface of the obtained Raney nickel catalyst, the Raney nickel catalyst is used for hydrogenation reaction of 2-methylglutaronitrile, the target product 2-methylpentamethylene diamine with a high yield can be obtained, and in addition, the catalyst has a good application prospect in the field of hydrogenation of 2-methylglutaronitrile. The catalyst can still maintain high catalytic activity after being repeatedly used.

The invention relates to an activation method of a Raney nickel electrode and the Raney nickel electrode. The activation method comprises the steps of electrode preparation, high-temperature hot alkali treatment, electrochemical anode activation and cleaning and post-treatment. Wherein in the high-temperature hot alkali treatment, a nickel-aluminum alloy sheet is placed in a sodium hydroxide solution with specific concentration and temperature to dissolve surface aluminum to form a primary porous structure; electrochemical anode activation is carried out by taking the treated electrode as an anode and an inert material electrode as a cathode, and deep aluminum is further removed under specific potential and time; and finally cleaning and drying to obtain the activated electrode. Compared with the prior art, the method utilizes the synergistic effect of high-temperature hot alkali and electrochemistry, overcomes the problem that deep aluminum is not dissolved thoroughly in traditional hot alkali treatment, can greatly shorten the activation time, reduce aluminum residues and protect the electrode structure, has the advantages of simplicity in operation, environmental protection, high efficiency and the like, improves the catalytic performance and stability of the Raney nickel electrode, and is suitable for industrial production. The method is suitable for industrial production application.

The invention discloses a synthesis method of a bio-based 1, 5-pentanediamine derivative curing agent, which comprises the following steps: S1, heating 1, 5-pentanediamine to 20-120 DEG C under the condition of nitrogen, then dropwise adding acrylonitrile, and reacting for 0.5-24 hours to obtain N, N '-poly (2-cyanoethyl)-1, 2-pentanediamine; s2, forming a reaction system by the N, N '-poly (2-cyanoethyl)-1, 2-pentamethylene diamine obtained in the S1, Raney nickel, inorganic alkali and a methanol ammonia solution, and reacting for 1-24 hours at the pressure of 0.1-10.0 MPa and the temperature of 50-80 DEG C to obtain a crude product; and S3, rectifying the crude product obtained in S2 to obtain a pure product. A series of biomass curing agents with brand new structures are synthesized, a synthesis scheme with mild and efficient conditions and low production cost is provided, and the problems of long reaction time, low reaction efficiency and high cost in the prior art are solved.

The present invention provides an alkaline water electrolysis membrane electrode and a preparation method and an electrolytic cell thereof, wherein the preparation method comprises the following steps: performing surface modification treatment on a nickel-based alloy to form an oxide layer or a hydroxide layer on the surface of the nickel-based alloy to obtain a modified nickel-based alloy; mixing the modified nickel-based alloy with an auxiliary agent and a solvent for pulping to obtain a membrane electrode slurry; coating the membrane electrode slurry on a substrate and hot pressing to form a film to obtain a hot pressed membrane electrode; performing impurity element leaching treatment on the hot pressed membrane electrode to obtain a membrane electrode containing Raney nickel. The present invention solves the problem of easy sedimentation and stratification of the slurry when the Raney nickel catalyst is directly used for pulping by performing surface modification on the Raney nickel precursor and using it for pulping, which is convenient for large-scale coating, and reduces the amount of dispersant and thickener used during pulping, improves the problem of reduced electrochemical performance of the membrane electrode caused by adding auxiliary agents, and improves the quality of the membrane electrode.

The invention discloses a Raney nickel electrode for producing hydrogen by electrolyzing water and a preparation method of the Raney nickel electrode. The preparation method comprises the steps of electro-deposition of a porous nickel substrate, electro-deposition of a nickel-zinc alloy on the porous nickel substrate, chemical dezincification activation of the nickel-zinc alloy, electro-curing of the activated Raney nickel electrode and the like. Through a technical route of combining electro-deposition and activation curing treatment, on the basis of ensuring high catalytic activity and high specific surface area, controllable design of a microstructure is realized, and the mechanical strength and stability of the electrode are remarkably improved. The Raney nickel electrode prepared by the invention is suitable for a water electrolysis hydrogen production process, and especially shows excellent durability and electro-catalytic performance under complex industrial conditions such as large current, high temperature and high voltage.

The invention provides a modification method for improving the performance of Raney nickel electrolyzed water, which comprises the following steps: pre-treating a nickel net, washing the nickel net with alkali, and putting the nickel net into absolute ethyl alcohol for later use; spraying a nickel net, oxidizing the nickel net, carrying out plasma spraying on the nickel net by using powder, roasting at high temperature, and finally activating to obtain the Raney nickel electrode. According to the Raney nickel electrode, the aluminum powder and nickel oxide on the nickel base material can be fully fused through an aluminothermic reaction technology, and the activity of the obtained nickel net after activation is greatly improved compared with that of a traditional Raney nickel electrode; according to the method, nickel powder does not need to be additionally sprayed, the raw material cost in the Raney nickel electrode production process is greatly reduced, operation is easy, and implementation is easy.

The invention relates to the technical field of hydrogen production, in particular to a hydrogen evolution electrode and a preparation method and application thereof. Specifically, the invention provides a hydrogen evolution electrode, the hydrogen evolution electrode comprises a conductive substrate, a protective layer and a catalyst layer, and the protective layer is located between the conductive substrate and the catalyst layer; wherein the conductive substrate is made of stainless steel, and the metal oxide is selected from one or more of metal oxides of zirconium, titanium, manganese, molybdenum and tungsten. By introducing the corrosion-resistant titanium oxide layer, a cheap stainless steel mesh can be adopted to replace a nickel wire mesh; meanwhile, in the hydrogen evolution electrode, compared with a single NiW catalyst and a commercial Raney nickel catalyst, the NiW / TiO2 composite catalyst adopted by the catalyst layer has a better hydrogen evolution catalytic effect.

This invention relates to a method for preparing hexamethylenediamine by hydrogenation of adiponitrile in the presence of a Raney nickel catalyst, wherein a Raney nickel catalyst modified by treatment with carbon monoxide or carbon dioxide in a liquid medium is used.

The invention relates to the technical field of sugar alcohol preparation, and discloses a preparation method of high-purity crystalline maltitol, which comprises the following steps: firstly, by taking corn starch milk as a raw material, preparing ultrahigh-content maltose syrup with the maltose content of more than or equal to 91%, the wheat triose content of less than or equal to 0.4% and the glucose content of less than or equal to 4% through an enzyme conversion method; carrying out hydrogenation reaction on the syrup by adopting a Raney nickel catalyst, and controlling the hydrogenation side reaction to be 2% or below, so as to obtain hydrogenated liquid with maltitol content of more than or equal to 88%; and then, a pigment separation procedure in a traditional process is omitted, and the hydrogenated liquid is directly subjected to decoloration, ion exchange, evaporation concentration, crystallization, centrifugation and drying treatment to finally prepare crystalline maltitol. According to the method, by screening a specific compound enzyme system and finely regulating the pH value and temperature control environment of a saccharification reaction system, the generation of maltose is effectively promoted, and side reactions such as excessive hydrolysis of glucose and reverse synthesis of trisaccharide are inhibited at the same time, so that the high-purity maltose syrup precursor is obtained.

The present invention provides a method for continuous catalytic amination of tetramethylpiperidone, which comprises the following steps: continuously introducing a liquid raw material containing triacetoneamine, an amine compound and a catalyst into a microchannel reactor, and introducing hydrogen into the reactor to carry out a continuous catalytic amination reaction to obtain a tetramethylpiperidineamine compound; wherein the catalyst is an acidic activated carbon loaded with a transition metal element. The present invention effectively solves the problems in the prior art, such as short catalyst life, high cost and a large amount of wastewater, when preparing tetramethylpiperidineamine compounds by using catalysts such as Raney nickel and palladium on carbon.

The invention relates to a process for the manufacturing of biobased 3-methyl-delta-valerolactone (3MdVL) and 3-methyl-1,5-pentanediol (3MPD) via one- pot hydrogenation of anhydromevalonolactone (aMVL) in the presence of a Raney- Nickel catalyst. The hydrogenation occurs without solvent at a temperature from 120ºC-180ºC, preferably at 130ºC-170ºC and a pressure between 15-30 bar, preferably at a pressure between 18 and 22 bar. The hydrogenation time may vary between 3 and 25 hours, preferably between 6 and 24 hours.

The invention relates to a carbobenzoxy deprotection reaction method and application, and belongs to the technical field of catalytic chemistry. The method comprises the following steps: dissolving a raw material Cbz epoxy in ethanol, carrying out high-temperature reflux stirring treatment, transferring the obtained product into a reaction kettle, adding Raney nickel, charging and discharging nitrogen to discharge air in the kettle, charging and discharging hydrogen again, keeping the final pressure of the hydrogen in the reaction kettle at 1-2 MPa, after the room-temperature reaction is finished, filtering the Raney nickel to obtain a reaction liquid, dripping the reaction liquid to crystallize, and carrying out suction filtration and drying to obtain the product. The filtered Raney nickel is recycled and reused for at least 10 times after being treated at a high temperature, and new Raney nickel is replaced, so that the triangular balance of'catalytic performance-economic cost-process stability 'is realized, the production cost is reduced on the premise of not influencing the reaction effect, the used Raney nickel is recycled and reused after being properly treated, and the production cost is reduced. And the production cost is further reduced, and good economic benefits are achieved.

The present invention discloses a method for preparing 5-methyltetrahydrofurfuryl alcohol. The method uses 5-hydroxymethylfurfural (HMF) as a raw material and one or more of palladium on carbon, Raney nickel, and sulfonated silica as a catalyst. HMF, a reaction solvent, and the catalyst are added to a reactor. Amberlyst 15 strong acid resin is added as a second catalyst to provide an acidic environment. The reactor is stirred and reacted in a hydrogen atmosphere to produce 5-methyltetrahydrofurfuryl alcohol. The present invention provides a method for preparing 5-methyltetrahydrofurfuryl alcohol that is simple, easy to separate, high in purity, and high in yield. The addition of Amberlyst 15, a second catalyst, to the reaction provides an acidic environment without affecting the activity of the Raney nickel, thereby facilitating the cleavage of the carbon-oxygen bond to produce the target product, 5-methyltetrahydrofurfuryl alcohol (MTHFM). The synergistic effect of Amberlyst 15 and the Raney nickel catalyst greatly enhances the activity of the catalytic reaction.

The invention relates to the technical field of catalyst treatment, in particular to a Raney nickel catalyst reduction and passivation treatment system and a passivation method.The system comprises a deactivation pool, a hydrogenation reactor and a circulation pipeline which are connected in a closed loop mode; a sodium nitrate solution supply end, a temperature adjusting system and a multi-dimensional sensing assembly (a concentration sensor, a temperature sensor, a pH sensor, a pressure sensor, a flow sensor and the like) are arranged, and the core is a processing unit integrating a control module and a dynamic soft measurement model. The desalted water injection amount, the sodium nitrate solution concentration and the deactivation solution temperature are preset and dynamically optimized through the treatment unit, closed-loop circulation of a reaction system is achieved through a circulation pipeline, and the passivation process is judged based on the pH value change. According to the method, the passivation rate and the completion time are predicted by means of the dynamic soft measurement model, the optimal process parameters are output in a self-adaptive mode, and the problems that a traditional passivation method depends on artificial experience, and is low in safety and insufficient in efficiency are solved by combining a safety interlocking mechanism and a uniform mixing regulation and control strategy.

The present invention relates to a method for recycling waste lithium iron phosphate positive electrode powder for preparing a high-performance water electrolysis anode catalyst and extracting lithium elements, comprising the following steps: disassembling waste lithium iron phosphate batteries, peeling the positive electrode sheet from the current collector and grinding it; and coating the surface of the obtained lithium iron phosphate powder with a modified nickel compound. The obtained material is immersed in an oxidizing solution to leach the remaining lithium in the material, and the delithiated composite catalyst powder is collected. The lithium ion-containing soaking solution is further recrystallized to precipitate into lithium salts, thereby achieving lithium extraction. Compared with the prior art, the present invention achieves efficient lithium iron phosphate recovery and reuse, and the obtained composite structure catalyst has a significantly improved effect on the oxygen evolution reaction in water electrolysis than waste lithium iron phosphate powder, and its performance is superior to that of commercial Raney nickel electrocatalysts. In addition, compared with directly extracting lithium from waste lithium iron phosphate powder and then coating it with nickel compound, the composite structure catalyst of the present invention has better catalytic performance for the oxygen evolution reaction.

This invention provides a method for manufacturing electrode materials that have excellent water electrolysis performance in water electrolysis devices. [Solution] A method for manufacturing an electrode material used in the electrodes of a water electrolysis device includes a step of obtaining Raney nickel contained in the electrode material, and the step of obtaining Raney nickel includes an alkali treatment step of dissolving aluminum from the NiAl alloy with an alkaline substance. The component composition of the NiAl alloy, excluding unavoidable impurities, is the composition formula Al3Ni (2-x) Co x (x is 0

The application provides a high-porosity Raney nickel electrode and a preparation method thereof, and relates to the technical field of Raney nickel electrodes and preparation thereof. The preparation method of the high-porosity Raney nickel electrode effectively controls the dealuminization rate and the pore uniformity through a preparation process of'sintering treatment + special electrochemical dealloying treatment', and stably prepares the high-porosity Raney nickel electrode. A new process for preparing the high-porosity Raney nickel electrode in an environmentally friendly manner is provided, which replaces the traditional corrosion pore-forming process of a strong alkaline chemical solution and reduces pollution. The prepared high-porosity Raney nickel electrode has a high porosity of up to 52%, and the pore structure is stable, so that the catalytic activity and mechanical stability of the electrode are effectively improved.

This application discloses a method for preparing sodium dihydrobis(2-methoxyethoxy)aluminate, belonging to the field of organic synthesis technology. The method uses aluminum powder, ethylene glycol monomethyl ether, and metallic sodium as main raw materials, and carries out a hydrogenation reaction under the action of a Raney nickel catalyst to generate the target product, sodium dihydrobis(2-methoxyethoxy)aluminate. The sodium dihydrobis(2-methoxyethoxy)aluminate prepared by this process uses inexpensive and readily available raw materials, is simple to operate, and has a yield of over 98.5%. It boasts high yield, low cost, and a short process route, reducing production costs compared to existing technologies and making it suitable for industrial production.

The utility model provides a Raney nickel industrial synthesis system, the system comprises a Raney nickel synthesis kettle and an auxiliary system, the Raney nickel synthesis kettle comprises a stirrer arranged inside, a heat exchange jacket arranged outside, and an induced air exhaust port, an alkali liquor feeding port, an inert gas feeding port and a material feeding port which are respectively arranged at the upper part of the outer wall, the aerator is connected with the inert gas adding opening, the cooling liquid inlet and the discharging opening are formed in the lower portion of the outer wall, and the cooling liquid outlet is formed in the side portion of the outer wall of the heat exchange jacket. The auxiliary system comprises a pure water supply device, an alkali liquor adding pump, a constant-temperature heat exchanger, an inert gas source, an induced draft fan and a screw feeder which are respectively connected with the Raney nickel synthesis kettle, an alkali liquor preparation kettle connected with the pure water supply device, and a first three-way pipe and a second three-way pipe which are used for shunting. According to the raney nickel synthesis device disclosed by the utility model, the automation of the raney nickel synthesis process is realized through precise pipeline connection among the components and precise control on reaction conditions.

This invention provides a method for manufacturing electrode materials that have excellent water electrolysis performance in water electrolysis devices. [Solution] A method for manufacturing an electrode material used in the electrodes of a water electrolysis device includes a step of obtaining Raney nickel contained in the electrode material, and the step of obtaining Raney nickel includes an alkali treatment step of dissolving aluminum from the NiAl alloy with an alkaline substance. The component composition of the NiAl alloy, excluding unavoidable impurities, is the composition formula Al3Ni (2-x) Cu x (x is 0)