315 results about "Electrolytic process" patented technology

The invention relates to the technical field of electrolytic refining, and provides an electrochemical device and method for extracting metal from molten salt. The electrochemical device comprises an anode, a cathode, an insulating container, an electrolytic bath and an ultrasonic stirring device. The cathode comprises a conductive part and liquid metal; the insulating container is provided with a containing space, the top side of the containing space is open, the liquid metal is contained in the containing space, and a part of the conductive part is inserted into the liquid metal; the electrolytic bath is provided with a containing cavity used for containing molten salt, the insulating container can be used for being immersed in the molten salt so that liquid metal can make contact with the molten salt, and one part of the anode is used for being inserted into the molten salt; a portion of the ultrasonic stirring device is inserted into the liquid metal for oscillating the liquid metal. The liquid metal is subjected to ultrasonic oscillation in the electrolysis process, so that the possibility that metal dendrites are formed on a reduction product or a high-melting-point alloy layer is formed on the surface of the liquid metal is effectively reduced, the reaction efficiency of electrolytic extraction is improved, and the quality of the extracted reduction product is improved.

The invention relates to the technical field of metal smelting, and provides an electrolytic refining device which comprises an anode assembly, a cathode assembly and an electrolytic bath, the cathode assembly comprises a cathode structure, the cathode structure comprises an ultrasonic transducer and a cathode head, the cathode head is connected with the ultrasonic transducer, and the ultrasonic transducer converts ultrasonic electric signals into mechanical vibration; the electrolytic bath is used for containing electrolyte, and at least part of the anode assembly and at least part of the cathode head are arranged in the electrolytic bath. The ultrasonic transducer drives the cathode head to vibrate, so that dendritic crystals gathered on the surface of the cathode head fall off, dendritic crystal accumulation on the surface of the cathode head is reduced, the surface of the cathode head keeps active, the service life of the cathode structure is prolonged, the electrolytic refining reaction rate and stability are improved, the electrolytic refining reaction can be continuously and uniformly carried out, and energy consumption in the electrolytic process is reduced. The maintenance cost and the production downtime are reduced, and the current efficiency and the collection rate of target metal are improved.

The invention relates to the technical field of model construction, in particular to a construction method and system of an electrolysis energy consumption model and a storage medium. The method comprises the following steps: collecting electrolysis process parameters by using a multi-mode sensor system, wherein the electrolysis process parameters comprise a current value, a voltage value, an electrolyte temperature and electrolysis time; constructing an electrolysis energy consumption initial model based on the electrolysis process parameters, and inputting the electrolysis process parameters into the electrolysis energy consumption initial model to output a unit product energy consumption value and a current-voltage efficiency curve; electrolytic bubble acoustic monitoring is conducted on the side wall of the electrolytic cell to obtain bubble breakage acoustic wave signals; and analyzing the sound intensity and the rupture frequency of the bubble rupture sound wave signal. According to the method, through the multi-modal sensor, multi-dimensional signal analysis and dynamic parameter correction, the defects of single data and static state of a traditional electrolysis energy consumption model are broken through, and high-precision dynamic modeling and optimization of energy consumption in the electrolysis process are achieved.

The invention relates to a water electrolysis hydrogen production technology, and aims to provide a super-hydrophilic nickel-based electrode with a two-stage array structure and a preparation method of the super-hydrophilic nickel-based electrode. According to the nickel-based electrode, a three-dimensional net-shaped nickel felt made of micron-sized pure nickel fibers serves as a base material, and micron-sized second-stage array structures are periodically arranged on the first-stage surface of the nickel felt; the secondary array structure is any one or two of a ridge-shaped array or a square column array formed on the surface of the nickel felt by using a femtosecond laser etching process. The preparation method of the electrode is simple in preparation step, has super-hydrophilic and super-aerophobic characteristics, is excellent in electrochemical performance and low in cost, and is very suitable for industrial production and application; a femtosecond laser one-step method is used for processing, subsequent treatment is not needed, and the method is simple, easy to operate and suitable for being amplified to an industrial production scale; the surface wettability of the electrode is greatly enhanced, the hydrophilic and aerophobic properties are excellent, and water transmission and bubble desorption in the electrolysis process are facilitated.

The invention relates to a method for producing an alkali metal alcoholate solution L1 in an electrolysis cell E which comprises at least one cathode chamber KK, at least one anode chamber KA, and at least one central chamber KM lying therebetween. The interior IKK of the cathode chamber KK is separated from the interior IKM of the central chamber KM by a separating wall W comprising at least one alkali-cation-conductive solid ceramic electrolyte (=“AFK”) F (e.g. NaSICON). F has the surface OF. A part OA / MK of the surface OF directly contacts the interior IKM, and a part OKK of the surface OF directly contacts the interior IKK. The surface OA / MK and / or the surface OKK comprises at least one part of a surface OFΔ. OFΔ is produced from a pre-treatment step in which F is produced from an AFK F′ comprising the surface OF′. In the pre-treatment step, AFK is removed from F′ by sputtering the surface OF′ using noble gas cations N+, and the AFK F with the surface OF comprising the surface OFΔ formed by the sputtering process is obtained. During the electrolysis process for producing the alkali metal alcoholates with F instead of F′, an improved conductivity is provided, whereby for a constant current density, a lower voltage can be used.

The utility model provides a transparent electrolytic bath with a replaceable polar plate. The transparent electrolytic bath comprises a cathode polar plate, a diaphragm and an anode polar plate, and the cathode plate and the anode plate are transparent plates. The visible electrolytic tank is reasonable in structural design, the electrolytic tank is visible by designing the transparent polar plate, real-time monitoring and observation can be carried out in the electrolytic process, changes in the electrolytic process can be directly observed, the mechanism of the electrolytic process can be researched and understood, and the electrolytic efficiency and the product quality are improved. Meanwhile, on the premise of visualization, the combined electrolytic cell is reasonably arranged, disassembled, assembled and replaced, and it can be ensured that gas or sediment generated in the electrolysis process cannot affect transparency.

The invention belongs to the technical field of light metal smelting and nano materials, and particularly discloses a nano aluminum powder electrolysis preparation method based on ionic liquid. The method comprises the following steps: mixing an ionic liquid, an additive and AlCl3 to obtain an electrolyte, and carrying out an electrolytic reaction by taking aluminum as a cathode and an inert electrode as an anode to prepare nano aluminum powder; the additive is specifically halide salt. The halide salt is added as an additive and can partially replace ionic liquid, so that the preparation cost of the nano aluminum powder is reduced; in addition, the halide salt can also avoid the phenomenon that the aluminum powder is adhered to the cathode, so that the particle size of the obtained nano aluminum powder becomes smaller and is more uniform, the nano aluminum powder with narrower particle size distribution is obtained, and the related performance during application is improved. The preparation method disclosed by the invention also has the advantages of low electrolysis temperature and low energy consumption, and the reaction can be protected by adopting a protective atmosphere in the electrolysis process, so that the preparation safety of the aluminum powder is greatly improved.

The invention discloses a rare earth metal electrolysis system and an electrolysis furnace thereof, and relates to the technical field of metallurgy, the rare earth metal electrolysis system is characterized by comprising a potential data acquisition and preprocessing module, a dendritic crystal feature extraction and quantification module, a dendritic crystal identification and intelligent determination module and an inverse pulse control and dynamic regulation module, in the electrolysis process, potential distribution original data of the surface of a rare earth metal cathode are detected and collected in real time, the obtained original data are preprocessed, and a preprocessed potential data set is established based on a time sequence. According to the method, intelligent, real-time and accurate inhibition of dendritic crystals in the rare earth metal electrolysis process is achieved, short circuit, splashing and electrode ablation are effectively prevented, the compactness and purity of metal deposition are improved, the current efficiency is remarkably improved, and compared with a traditional scheme, the method has the advantages of being high in real-time performance, good in inhibition effect, small in interference and high in adaptability, and the method is suitable for popularization and application. And efficient and safe preparation of the rare earth metal is ensured.

The invention relates to the technical field of resource recovery and metallurgy, and discloses a method for separating high-purity metal from neodymium-iron-boron alloy waste, which comprises the following steps: by taking the neodymium-iron-boron alloy waste as an anode and an inert material as a cathode, oxidizing and dissolving Nd, Dy, Pr, Co and Fe into electrolyte by adopting constant-voltage electrolysis, and separating out part of Fe at the cathode to obtain high-purity iron; adding sodium sulfate into the electrolysis tail liquid, adjusting the pH value, and filtering to obtain sodium sulfate double salt precipitate of rare earth and filtrate; h2O2 is added into the filtrate, sodium jarosite is obtained through filtration by adjusting the pH value, NH4HCO3 is added into the iron-removed filtrate to precipitate CoCO3, and the tail liquid can be directly and repeatedly used in the electrolysis process; the rare earth sodium sulfate double salt precipitate is sequentially subjected to hydrochloric acid dissolution, two-step extraction, precipitation and roasting, and Dy, Nd and Pr oxides are obtained respectively. Comprehensive recovery of metal is achieved through the processes of electrolysis, extraction, precipitation, roasting and the like, and the method has the advantages of being simple in process, high in metal purity, low in material consumption and energy consumption, free of pollution and easy to industrialize.

An apparatus and process for electrolyte purification can be configured to remove iron from a solution to purify an electrolyte solution for feeding to one or more electrolyzers for use in producing hydrogen from water via electrolysis. Embodiments can utilize a reactor having an iron removing agent positioned therein such that the electrolyte solution can be passed through a vessel of the reactor for removal of iron. Other embodiments can include inclusion of an iron removing agent in a tank being agitated with water and electrolytic material (e.g. KOH material) for forming the electrolyte solution and subsequently filtering out iron containing materials included in the formed solution via the iron removing agent. Embodiments can be configured to provide an electrolyte solution having a pre-selected iron concentration to help prevent fouling of electrodes utilized in electrolysis processing.

The present invention relates to an electrolyzer designed for the generation of hydrogen and oxygen through water electrolysis. The electrolyzer comprises a housing structure accommodating at least one electrolytic cell, which includes an anode, a cathode, and an ion-conducting membrane. A water inlet is provided to introduce water into the electrolytic cell, and an electrical power source is operatively connected to the anode and cathode to facilitate the electrolysis process. The electrolyzer also includes separate outlets for the efficient extraction of hydrogen and oxygen generated during electrolysis. A multi-parameter optical measurement system is integrated within the electrolyzer. This system features at least one optical fiber with multiple sensing points distributed along its length, each capable of detecting various operational parameters within the electrolyzer.

The invention provides a novel metal-based nano catalytic coating electrode and a preparation method thereof.The metal-based nano catalytic coating electrode comprises a metal matrix and a conductive mechanism, and the metal matrix is sequentially provided with a corrosion-resistant middle layer, a transition layer, a nano-doped ceramic oxide active layer and a porous enamel ceramic isolation layer from near to far; and the metal substrate is fixedly connected with the conductive mechanism. The metal base body is of a plate-shaped structure, a net-plate-shaped structure or a plate-column-shaped structure. The corrosion-resistant middle layer of the metal-based nano catalytic coating electrode can prevent the metal matrix from being passivated in the electrolysis process, so that the service life of the electrode is prolonged; the plated layer can be used as a bonding bridge between the metal matrix and the doped ceramic oxide layer, so that the stress generated by sudden change of temperature, crystal form and the like in the coating preparation process is reduced, and the bonding force between the coating and the metal matrix is greatly improved; the porous enamel ceramic isolation layer can effectively prevent a solution from scouring the doped ceramic oxide active layer, and the service life of the doped ceramic oxide active layer electrode is prolonged.

The invention belongs to the technical field of metallurgy, and relates to a complex gold concentrate multi-element comprehensive recovery method which comprises the following steps: S1, complex gold concentrate and auxiliary materials are subjected to bottom blowing smelting in an oxygen-enriched air atmosphere to obtain matte, bottom slag and flue gas; s2, copper matte and auxiliary materials are subjected to top-blowing converting in the air atmosphere, and crude copper, flue gas and converting slag are obtained; and S3, the crude copper and carbonate are refined in the air atmosphere, after refining is finished, sulfur hexafluoride gas is introduced for a reaction in the air atmosphere, methane gas is introduced for reduction in the inert atmosphere after the reaction is finished, and the copper anode plate is obtained. According to the method, arsenic, antimony and bismuth in the crude copper are removed through two-step oxidation and impurity removal, and the phenomenon that arsenic, antimony and bismuth elements in the complex gold concentrate are enriched in the copper anode plate along with smelting and refining, and consequently the copper anode plate is passivated in the subsequent electrolysis process is avoided; and the recovery method is simple in process and high in recovery rate.

The invention discloses a green continuous production process of electrolytic manganese dioxide, which comprises the following steps: mixing a manganese-containing raw material and sulfuric acid according to a mass ratio of 1: (1.2-1.5), and then carrying out acid leaching at 80-90 DEG C for 2-3 hours to improve the manganese leaching rate to 91-98%; 10-15% hydrogen peroxide oxidation is combined with accurate regulation and control and flocculent precipitation of pH 5-6, so that the iron impurity residue is less than or equal to 5 ppm; in the electrolysis process, sulfuric acid is continuously supplemented to maintain the concentration of 150-180 g / L, the titanium-based lead dioxide anode and the stainless steel cathode are matched, and the current efficiency is 88-91.5%; and carrying out three-stage countercurrent washing and drying at 120-130 DEG C on the product to obtain the electrolytic manganese dioxide with the purity of more than or equal to 93%. The process provided by the invention is suitable for resource utilization of low-grade pyrolusite, and the obtained product is mainly used in the fields of lithium-manganese battery positive electrode materials, magnetic materials and catalyst carriers.

The utility model discloses waste water electro-desalting equipment, which belongs to the technical field of waste water treatment, and comprises a cooling tower and a cooling water tank arranged at the bottom of the cooling tower, the input end of the cooling tower is communicated and connected with a circulating water main pipe, the circulating water main pipe is communicated and connected with a circulating water branch pipe, and the circulating water branch pipe is communicated and connected with a circulating water outlet pipe. The output end of the circulating water branch pipe is connected with an electrochemical water treatment device, a large number of scale inhibition small molecules can be generated in the electrolysis process, a very good scale inhibition effect can be achieved, a dense ferroferric oxide (Fe3O4) protection film can be generated on the surfaces of a system pipeline and the pipe wall of heat exchange equipment by using an electrochemical technology for a long time in a circulating water system, and the service life of the circulating water system is prolonged. The corrosion rate of carbon steel equipment is less than or equal to 0.075; and when the electrochemical water treatment device continuously operates, a circulating water system can safely and stably operate in an energy-saving and zero-pollution manner for a long time.

The invention relates to the technical field of rare earth electrolysis, and discloses an intelligent feeding system for rare earth metal electrolysis and a using method thereof.The intelligent feeding system comprises an intelligent feeding algorithm module, a controller and a rare earth discharging machine, and the controller is used for receiving parameters output by the intelligent feeding algorithm module; the controller is further used for sending a discharging instruction to the rare earth discharging machine. And the intelligent feeding algorithm module comprises an electrolysis process data acquisition module, an electrolytic bath state evaluation module, an electrolysis parameter prediction module and an electrolysis prediction parameter optimization module. According to the method, the state of the electrolytic cell is accurately evaluated through the intelligent feeding algorithm module, the process parameters are accurately predicted on the basis of the state, finally, the electrolytic process parameters are optimized by combining the cell state judgment result and the electrolytic process parameter prediction result, and the optimal solution parameters are output. And the controller responds and issues an instruction to control the blanking rate of the rare earth blanking machine, so that the content of rare earth elements in the molten electrolyte is effectively controlled.

The invention relates to the technical field of water pollution control and treatment, and particularly discloses electroplating wastewater heavy metal ion treatment equipment. The cathode bar is sleeved with the isolation cover provided with the multiple communicating grooves at intervals in the circumferential direction, and the annular mounting base with the lifting mechanism is slidably mounted outside the isolation cover, so that the clearing mechanism in the mounting base can dynamically clear sediments in the length direction of the cathode bar. The design of the communicating groove of the isolation hood not only allows electroplating wastewater to be in full contact with the cathode bar, but also restrains sediments in an area in the groove by limiting a fluid diffusion path, so that disordered diffusion of metal particles in the electrolytic tank is effectively prevented. And the lifting motion of the mounting seat is matched with the clearing mechanism, so that sediments on the surface of the cathode can be continuously stripped in the electrolysis process, the efficiency loss caused by shutdown clearing in a traditional aeration method is avoided, meanwhile, the secondary pollution risk of suspended sludge is reduced, and continuous and efficient recovery of heavy metal ions is realized.

Electrolysis device for arrangement in a water container (4), comprising: (a) at least one rotating cathode (120) mounted on an axis (112) and designed to rotate during an electrolysis process; (b) at least one stationary cathode cleaning element (140) configured to contact a surface of the rotating cathode (120) so that deposits are removed from the rotating cathode (120) during the electrolysis process while the rotating cathode (120) is rotating, wherein the at least one stationary cathode cleaning element (140) is pre-tensioned outwards so that a scraping edge (152 a,b) of the at least one stationary cathode cleaning element (140) is in contact with the surface of the rotating cathode (120), and wherein the stationary cathode cleaning element (140) is constructed with a support extension (156) wherein the curvature of the support extension (156) substantially corresponds to the curvature about the axis (112) and the support extension (156) bears against the surface of the axis (112), thereby providing suitable orientation of the stationary cathode cleaning element (140) is maintained with the scraping edge (152 a,b); and (c) at least one stationary anode (132) arranged adjacent to the rotating cathode (120).

The application belongs to the technical field of rare earth metallurgy, and discloses a method for preparing rare earth metal by electrolyzing molten salt. The method comprises the following steps: taking rare earth oxide as electrolytic raw material, and performing electrolysis in molten salt electrolyte under a protective atmosphere; and collecting the deposit after electrolysis, so that the rare earth metal is obtained. Through the synergistic effect of multi-dimensional process, the application successfully constructs an efficient, green and stable rare earth metal electrolysis preparation system. The system completely eliminates carbon pollution, significantly improves the stability of the electrolysis process and the quality of the product, realizes efficient and stable preparation of high-purity rare earth metal, and can meet the stringent requirements of high-end electronics, aerospace, high-performance permanent magnet materials and other fields for ultra-high-purity rare earth products.

The invention provides modified zirconium boride ceramic, a preparation method and application of the modified zirconium boride ceramic in electrolytic aluminum, and belongs to the technical field of ceramic. The preparation method comprises the following steps: preparing zirconium dioxide sol, preparing a reinforcing phase, coating and sintering. The step of preparing the zirconium dioxide sol comprises the following steps: adding a rare earth solution into a zirconium source solution, controlling the adding rate of the rare earth solution to be 1.5-2.0 g / min, stirring while adding, stirring at 42-45 DEG C for 30-35 min, stirring at 60-63 DEG C for 40-50 min, adjusting the pH to 3.2-3.5, adding polyethylene glycol 2000 after aging, and stirring for 50-60 min to obtain the zirconium dioxide sol; the prepared modified zirconium boride ceramic is high in strength, excellent in high-temperature oxidation resistance and thermal shock resistance and good in corrosion resistance, and the stability of the electrolysis process can be effectively guaranteed.

The application belongs to the technical field of material detection, and specifically provides a method for determining the sodium expansion rate of an aluminum cathode with a non-standard size under pressure, characterized in that the method comprises the following steps: preparing a composite sample through an aluminum cathode carbon block and a graphite block, and preparing a control sample through the graphite block; electrolyzing the composite sample and the control sample respectively; determining a first length increment curve of the composite sample in an electrolysis process, and determining a second length increment curve of the control sample in the electrolysis process; and determining the sodium expansion rate of the aluminum cathode based on the first length increment curve and the second length increment curve. The technical scheme provided in the application can realize the determination of the sodium expansion rate of an aluminum cathode with a non-standard size.

The utility model belongs to the field of rare earth metal electrolytic machining, and particularly relates to an electrolytic furnace for preparing rare earth metal, which comprises a furnace body, a driving motor is arranged at the top of the furnace body, the output end of the driving motor penetrates through the furnace body and is connected with a reciprocating screw rod, and the reciprocating screw rod is arranged in a cylindrical cavity in the inner wall of the furnace body and is rotationally connected with the bottom of the cavity; a longitudinal sliding groove is formed in the surface of the barrel-shaped cavity, the surface of the reciprocating lead screw is in threaded connection with a barrel-shaped block matched with the barrel-shaped cavity, and a sliding block sliding in the sliding groove is arranged on the side face of the barrel-shaped block; through the structural design that an elastic scraping strip sleeving the outer wall of a fixing ring is in interference contact with the inner wall of the furnace body, the function of scraping residual materials on the inner wall in the electrolysis process in real time is achieved, and the problems that materials attached to the inner wall of a traditional electrolysis furnace cannot participate in the reaction and are difficult to clean are solved; the high-temperature-resistant silica gel material of the elastic scraping strip and the wave-shaped scraping teeth enhance the scraping effect, so that the materials are ensured to participate in the reaction again, and solidification residues are reduced.

The invention relates to the technical field of equipment control, in particular to a rare earth electrolysis feeding control method and system based on the fluorine ion quantity, and the method mainly comprises the steps that the fluorine gas concentration in the electrolysis process in the current collection period is obtained, and the current fluorine ion detection concentration is obtained through the fluorine gas concentration; and constructing a PID control model, and outputting a control signal for the feeding equipment according to the PID control model based on the fluorine ion concentration. According to the scheme, the fluorine ion or fluorine-containing gas emission amount is collected, the fluorine-containing gas or fluorine ion emission amount is relatively stable during normal electrolysis, and once material shortage and fluorine-containing gas or fluorine ion emission data are abnormal and obvious, abnormal electrolysis can be judged in time, response can be made in time (the starting point is different from that of the disclosed feeding control technology), and the feeding control accuracy is improved. And data are fed back in time and output of the charging machine is controlled. According to the method, whether material shortage exists in current electrolysis or not is judged, the feeding amount is accurately controlled through fluorine data, furnace caking caused by excessive material feeding due to the fact that materials exist in a furnace is avoided, and rare earth fluoride can be prevented from participating in electrolysis due to material shortage in the furnace.

The present invention belongs to the technical field of PET degradation and recycling, and particularly relates to a process, system and application for electrolytically recovering PTA from PET degradation liquid. The process flow includes constructing an electrolysis system, introducing the PET degradation clear liquid from the material clear liquid tank into the electrolysis system, and draining the PTA generated by electrolysis together with the PET degradation clear liquid to the material concentrated liquid tank. The PTA solid is separated from the aqueous solution containing terephthalate through a membrane filtration device. The PTA solid re-enters the material concentrated liquid tank for enrichment, and then is filtered, washed and dried to obtain PTA. The filtrate enters the material clear liquid tank for cyclic electrolysis; the inorganic alkali liquid generated by electrolysis enters the alkali liquid storage tank to collect the generated inorganic alkali. This process and system enable the PTA generated by electrolysis to continuously flow out of the anode chamber along with the PET degradation clear liquid, reducing the deposition of PTA on the surface of the anode plate, solving the problem that the PTA generated during electrolysis is likely to deposit on the surface of the anode plate and then cause the interruption of the electrolysis reaction, and significantly improving the electrolysis efficiency.

The application discloses a copper electrolysis / electricity deposition device and a working method thereof in the technical field of crude copper electrolytic refining, which comprises a tank body, the tank body comprises a cathode cavity and an anode cavity, the cathode cavity and the anode cavity are arranged side by side and are communicated with each other, an electrolyte input device, the electrolyte input device is arranged in the cathode cavity, and the electrolyte input direction is from the cathode to the anode, an electrolyte output device, the electrolyte output device is arranged in the anode cavity, and the electrolyte output direction is from the anode to the cathode, cathode plates and anode plates can be arranged in the cathode cavity and the anode cavity respectively at intervals, and the cathode plates and the anode plates are connected with an electrolysis power source externally, the cathode cavity and the anode cavity adopt a cathode-anode different-tank structure, the purity of electrolyte in the cathode tank is high during the electrolysis process, the quality of cathode copper can be improved, the problem of short circuit caused by excessive dissolution of the anode plates and falling off of the anode plates during the electrolysis process can be avoided, the residual anode rate can be reduced, and silver ions generated by anode dissolution do not participate in cathode discharge, so that the silver recovery rate can be improved.

The device comprises a pulse power supply, the negative electrode and the positive electrode of the pulse power supply are connected with a metal-based diamond composite material and a tool electrode respectively, the tool electrode or the metal-based diamond composite material is provided with an ultrasonic vibrator, and the ultrasonic vibrator is connected with the pulse power supply. And the ultrasonic vibrator is provided with an ultrasonic generator. According to the method, the distribution density of bubbles on the surface of the diamond is improved through the cathode surface hydrogen evolution process in the electrolysis process, controllable conditions are created for the ultrasonic cavitation effect, a tool electrode material is sputtered to the surface layer of the diamond due to electric spark discharge, a catalyst is provided, and the conversion efficiency of diamond graphitization is improved by integrating the two conditions. The surface layer of the diamond has electrical conductivity after being graphitized, so that the diamond has discharge machinability without the operation of plating metal and the like, and the implementation mode is simple.

The invention discloses an electrolyte containing ammonium hydrogen fluoride, which takes pure water as a solvent, and each liter of the electrolyte contains 6.1 to 10.3 g of ammonium hydrogen fluoride, 2.2 to 4.2 g of ammonium fluoride, 2.9 to 4.9 g of sodium fluoride and 0.22 to 0.42 g of 2, 5, 8, 11-tetramethyl-6-dodecyne-5, 8-diol; the method is used for treating the beryllium copper surface and comprises the following steps: (1) putting the electrolyte containing ammonium hydrogen fluoride into an electrolytic bath of electrolysis equipment; (2) putting a beryllium copper piece to be treated into the electrolyte in the step (1) as an anode, taking a stainless steel plate as a cathode, and electrolyzing under the action of direct current; (3) the beryllium copper piece subjected to electrolysis treatment is washed with pure water, and then the beryllium copper piece is placed in electroplating liquid for nickel plating; and (4) the beryllium copper piece subjected to nickel plating treatment is washed with pure water and dried to remove surface moisture, and the beryllium copper piece subjected to surface treatment is obtained. The method is safe and reliable to operate, clean and environment-friendly.

The utility model relates to water electrolysis technical field, specifically disclose a kind of low-temperature full gaseous water vapor electrolytic hydrogen production device and system. The utility model aims at overcoming the limitations of existing water electrolysis technology in energy efficiency, cost, system complexity, operation flexibility and environmental adaptability etc. The utility model is core at, under the mild condition lower than 90 DEG C, water is supplied to cathode and anode of electrolytic cell in the form of pure gaseous water vapor simultaneously, using specially designed membrane electrode assembly and internal water management structure, under the action of direct current, water vapor is decomposed efficiently to generate high-purity hydrogen and oxygen. The entire electrolysis process avoids the direct input and circulation of liquid water, realizes gas-solid two-phase interface reaction, significantly simplifies water balance system, reduces equipment volume and weight, solves the bubble coverage of traditional liquid phase electrolysis, mass transfer resistance. The utility model device has the characteristics of modularization and miniaturization, and significantly reduces the net power consumption per unit hydrogen production.

The utility model relates to the technical field of electrolysis, and particularly discloses a multifunctional flowing electrolytic tank device which comprises a fixed mounting plate I and a fixed mounting plate II which are positioned on two sides, a runner cathode plate arranged on the inner side of an insulating plate I, a runner anode plate arranged on the inner side of an insulating plate II, and an exchange membrane arranged between the runner cathode plate and the runner anode plate, solution inlet cavities are formed in the first fixed mounting plate and the first insulating plate, solution outlet cavities are further formed in the first fixed mounting plate and the first insulating plate, and reaction cavities are formed in the runner cathode plate and the runner anode plate; the reaction rate and the product generation rate can be accurately controlled in the electrolysis process, so that quantitative control on the reaction process is realized, which is crucial to accurate control in laboratory research and industrial production; and the matched drying barrel can dry gas generated after electrolysis, use and storage are convenient, the arranged drying barrel is convenient to mount or dismount, and electrolysis use is facilitated.

The invention discloses an electrolytic aluminum discharger function test device, and relates to the technical field of dischargers, the electrolytic aluminum discharger function test device comprises a material box, a discharging valve, a base support and a metering scale, the top of the material box is provided with a to-be-tested electrolytic aluminum discharger, the discharging valve is used for controlling the electrolytic aluminum discharger to discharge, and the base support is used for supporting the base support. The base support is arranged at the bottom of the material box and used for supporting the material box, and the metering scale is arranged at a discharging opening in the bottom of the material box and used for weighing the discharging amount of one-time discharging of the electrolytic aluminum discharging device; according to the device for testing the function of the electrolytic aluminum blanking device, blanking testing can be carried out after the blanking device is maintained, and whether the maintenance effect of the blanking device reaches the standard or not can be judged by comparing the blanking amount with the standard blanking amount. And if the blanking amount of the blanking device is greatly deviated from the standard blanking amount or the phenomenon of material leakage exists, the blanking device is taken down to be repaired again, so that the situation that the unqualified blanking device is mounted on the electrolytic bath to influence the electrolytic process index is avoided.