262 results about "Pressure reactor" patented technology

The invention discloses a purification method for removing quartz inclusion, which comprises the following steps: calcining a quartz sand raw material at high temperature for a certain time, then taking out and quickly putting into cold water for cold quenching; dehydrating quartz sand, feeding into a microwave reactor, heating to a set temperature, and keeping for a period of time; after the reaction is finished, cleaning the quartz sand with ultrapure water; filling the quartz sand into a high-temperature and high-pressure reactor, introducing supercritical carbon dioxide and hydrogen fluoride mixed gas, and keeping the temperature and the pressure for a period of time; and after the reaction is finished, discharging gas to obtain the high-purity quartz. Through two-stage heat treatment, a channel between gas-liquid inclusions in quartz particles and the outside can be efficiently opened, and meanwhile, the supercritical method ensures that impurities in the inclusions can be effectively dissolved out; the treatment time is short, the required temperature is low, the acid consumption is less than 10%, and the method has the advantages of high efficiency and low cost.

The invention relates to a textured KCu7S4 thermoelectric material and a preparation method thereof, and the method comprises the steps: sequentially adding a prepared KOH aqueous solution, CuCl2. 2H2O and Na2S. 9H2O into a high-pressure kettle, and fully stirring for dissolving; dropwise adding an N2H4.H2O aqueous solution into the mixed solution, fully stirring, sealing, transferring to a microwave chemical synthesis instrument, heating, keeping stirring, and reacting at a target temperature and self-generated pressure to generate a KCu7S4 nanowire preferentially growing along a [001] crystal orientation; and after the reaction is finished and natural cooling is carried out, a product is collected through centrifugation, full cleaning and vacuum drying are carried out, and then the KCu7S4 thermoelectric material with [001] preferred orientation in the direction perpendicular to the pressure direction is obtained through spark plasma sintering. According to the method, a surfactant and an organic solvent are not used, and macro, rapid, efficient and controllable preparation of the KCu7S4 nanowire is realized through a low-temperature, low-cost and low-energy-consumption microwave-assisted hydrothermal process.

The invention discloses a high-pressure reaction kettle emergency discharge pre-arranged planning method, which comprises the following steps of: constructing a real-time monitoring network through a multi-physical quantity sensor, automatically generating a micro scene highly coupled with field disturbance by combining intelligent signal filtering, abnormal factor aggregation and parametric modeling, and realizing agile mapping of a historical optimal discharge strategy and adaptive parameter adjustment and optimization. The risk tolerance and the response rate are accurately evaluated by means of parallel simulation deduction; an actual discharge action is compared with simulation feedback, and if a significant deviation exists, a rapid reconstruction strategy is iterated to realize closed-loop safety management and control; according to the method, the accuracy, the self-adaptability and the safety of the release decision are improved, and the emergency prevention and control efficiency of the reaction kettle under the extreme working condition is improved.

The invention provides an ethylene maleic anhydride copolymer and a preparation and application method thereof, and the preparation method comprises the following steps: dissolving a maleic anhydride monomer in an organic solvent to form a uniformly dispersed solution system, and transferring the solution system into a high-pressure reactor; ethylene gas in a supercritical state is introduced into the solution system of the high-pressure reactor to form a uniform ethylene-maleic anhydride solution system, wherein the pressure of the ethylene gas in the supercritical state is 5-30 Mpa; adding a free radical initiator into the ethylene-maleic anhydride solution system, raising the reaction temperature, and carrying out solution polymerization reaction to obtain a reaction system; a precipitant is added into a reaction system to separate out the ethylene-maleic anhydride copolymer, ethylene and maleic anhydride in the ethylene-maleic anhydride copolymer alternately exist in the form that the molar ratio of ethylene to maleic anhydride is 1: 1, high-performance bonding composite resin can also be formed by blending the ethylene-maleic anhydride copolymer and polyethylene, and the high-performance bonding composite resin is suitable for the fields of adhesives, coatings, composite materials and the like.

The invention belongs to the technical field of oil exploitation, and relates to a drag reducer for fracturing and a preparation method thereof. The preparation method comprises the following steps: adding 1, 5-hexadiene-3, 4-diol and a catalyst into a high-pressure reactor, raising the temperature, introducing ethylene oxide, raising the temperature, carrying out a heat preservation reaction, stopping heating, and cooling to 50 DEG C or below; adjusting the pH value to 2-3 by using phosphoric acid, adding sulfamic acid, heating, preserving heat and reacting, and cooling to below 40 DEG C; the preparation method comprises the following steps: adding deionized water, 2-(trifluoromethyl) acrylic acid and methacryloylethyl sulphobetaine, stirring and dissolving, adjusting the pH value to 7-8, adding an initiator, heating and carrying out a heat preservation reaction to obtain a viscous liquid; and settling, centrifuging, cleaning and drying to obtain the product drag reducer. The drag reducer has the characteristics of high viscosity and high drag reduction rate.

The invention discloses a preparation method of a Zr-MOF nano material, which comprises the following steps: adding deionized water into a reaction mixture consisting of zircon salt, 4 ', 4', 4 ', 4'-(ethylene-1, 1, 2, 2-tetraalkyl) tetra ([1, 1 '-biphenyl]-4-carboxylic acid), an acid regulator and an organic solvent to form a mixed solution, heating and reacting in a high-pressure reaction kettle, and cooling to room temperature to obtain the Zr-MOF nano material. And centrifugally collecting and cleaning a product, and drying in a dark place to obtain the Zr-MOF nano material. According to the application of the Zr-MOF nano material in the water-based zinc-iodine battery, the Zr-MOF nano material and iodine are prepared into a composite material, then the composite material is prepared into electrode slurry, the surface of a stainless steel mesh is coated with the electrode slurry, and the electrode slurry is dried to serve as an electrode plate of the water-based zinc-iodine battery. The preparation process is simple, Zr-MOF nano-materials with different structures can be obtained by adjusting the deionized water content of the system, and the Zr-MOF nano-materials can be applied to an electrode plate of an aqueous zinc-iodine battery to improve the cycle performance of the battery.

The invention discloses a structural health monitoring method for a high-temperature and ultrahigh-pressure reactor based on an unmanned aerial vehicle platform, the unmanned aerial vehicle platform carries a non-contact thermal imaging module and a contact ultrasonic detection module, and the structural health monitoring method comprises the following steps: receiving and processing data from the non-contact thermal imaging module, identifying a suspected abnormal area on the surface of the reactor; generating a control instruction based on the identified suspected abnormal area, and guiding the unmanned aerial vehicle platform to move the contact type ultrasonic detection module to a corresponding position for contact type detection; and the data processing module is used for receiving and processing data from the contact type ultrasonic detection module so as to verify and evaluate the suspected abnormal area. According to the technical scheme provided by the invention, full-coverage structure health assessment can be carried out on the high-temperature and ultrahigh-pressure reactor through the remote unmanned aerial vehicle platform, and potential internal defects and surface abnormalities can be accurately identified.

The invention relates to a preparation method of a nickel-based alloy for a high-temperature ultrahigh-pressure reaction kettle, which comprises the following steps of: preparing a high-quality and high-purity nickel-based high-temperature alloy ingot by adopting a triple smelting process of (1) vacuum induction melting, (2) electroslag remelting and (3) vacuum consumable remelting; (4) homogenizing heat treatment is conducted, specifically, heat preservation is conducted for 24-48 h at the temperature of 1100- 5) hot working: keeping the temperature of the cast ingot at 980-1150 DEG C for 2-6 hours, and forging the cast ingot into a finished forge piece; and (6) heat treatment is conducted, specifically, after solution treatment is conducted on the forged piece at the temperature of 920-1050 DEG C, stabilization treatment is conducted at the temperature of 810-860 DEG C, heat preservation is conducted for 8-12 h at the temperature of 720-760 DEG C, then furnace cooling is conducted to the temperature of 620-650 DEG C, heat preservation is conducted for 8-12 h, by the adoption of the method, the purity and quality of the alloy cast ingot can be remarkably improved, precipitation of harmful phases is reduced, the structure performance of the alloy forged piece is optimized, the reliability and using performance of the alloy forged piece for the reaction kettle are improved, and the reaction kettle can be used for a long time under the high-temperature and ultrahigh-pressure complex working conditions.

The utility model discloses a high-pressure reaction kettle discharge pipe anti-blocking structure which comprises a mounting structure, an ultrasonic transducer and a driving structure, the mounting structure is arranged on one side of a discharge pipeline and comprises a mounting channel and a mounting part, the mounting channel is communicated with the interior of the discharge pipeline, and the mounting part is slidably arranged in the mounting channel; the ultrasonic transducer is mounted on the mounting piece; and the driving structure is connected with the mounting part and is used for driving the mounting part to slide in the mounting channel, so that the ultrasonic transducer is mounted on the inner wall of the discharging pipeline in an abutting manner. According to the high-pressure reaction kettle, adhesion and accumulation of materials in the pipeline can be effectively reduced, so that the risk of blockage of the discharge pipe of the high-pressure reaction kettle is reduced.

The invention relates to the field of biomedicine, and particularly provides bimetal MOFs with photo-thermal and anti-oxidation effects and a preparation method and application thereof.The preparation method comprises the following steps that 1, 4, 5, 8-naphthalene tetracarboxylic dianhydride and 4-amino-4H-1, 2, 4-triazole are dispersed in DMF, a reflux reaction is conducted at the temperature of 140-160 DEG C, and a DBPT organic ligand is obtained; the preparation method comprises the following steps: fully dissolving a DBPT organic ligand, anhydrous ferric chloride, anhydrous cupric nitrate and fluoboric acid in DMF at room temperature to obtain a reaction solution, carrying out ultrasonic treatment on the reaction solution, stirring until the reaction solution is completely dissolved, putting the obtained solution into a high-pressure reaction kettle, carrying out a heating reaction, and cooling to room temperature after the reaction is finished; and centrifuging the product, cleaning and drying to obtain the Fe / Cu-MOFs. The preparation method disclosed by the invention is simple to operate, and the prepared bimetallic MOFs have good photo-thermal and oxidation resistance and can be applied to multiple treatment requirements of bacterial infection and inflammation environment regulation and control.

This invention relates to the field of nanofiber technology, and particularly to a quaternary ammonium-modified PPACE-Cl nanofiber, its preparation method, and its application. S1. Preparation of PAN electrospun nanofibers: Polyacrylonitrile, polyvinylpyrrolidone, and carboxylated multi-walled carbon nanotubes are stirred with N,N-dimethylformamide at room temperature for 6-12 h to obtain a uniform and transparent spinning solution. The resulting spinning solution is then placed in a 10 mL syringe and spun in an electrospinning machine to obtain PAN / PVP / MWCNT-CCOH nanofibers. The obtained nanofibers are then placed in hot water at 60-100°C to remove PVP, yielding PAN / MWCNT-COOH nanofibers. S2. Preparation of nitrogen-enriched modified PPACE nanofibers: The PAN / MWCNT-COOH nanofibers prepared in step S1 are placed in an aqueous solution of polyethyleneimine in a high-pressure reactor to obtain modified PPACE nanofibers. S3. Preparation of quaternary ammonium-modified PPACE-Cl nanofibers. The quaternized PPACE-Cl nanofibers of this invention will prepare nanofibers with a surface rich in positive charge, thereby achieving the effect of AuCl4 exhibiting a negative charge in aqueous solution. ‑ Selective enrichment and adsorption are carried out.

This invention discloses a method for preparing a Pd-BiOI / ordered mesoporous carbon electrode, comprising: step S1, preparing an ordered mesoporous carbon electrode material using a soft template method under low-temperature hydrothermal conditions; step S2, using a three-electrode system, with the ordered mesoporous carbon electrode material as the working electrode, a platinum sheet as the counter electrode, and a saturated calomel electrode as the reference electrode, using a hydrochloric acid solution containing PdCl2 as the electrolyte, and depositing a Pd / OMCs electrode using a multi-step current pulse method; step S3, adding KI to ethylene glycol and dissolving it by magnetic stirring; then adding Bi(NO3)3•5H2O and stirring magnetically to obtain a mixture a; placing the mixture a and the Pd / OMCs electrode prepared in step S2 in a high-pressure reactor lined with polytetrafluoroethylene, and performing a hydrothermal reaction under high-temperature conditions, followed by rapid cooling after the reaction, removing the electrode and rinsing it with distilled water to obtain the Pd-BiOI / OMCs electrode. The Pd-BiOI / ordered mesoporous carbon electrode prepared by this invention has both excellent electroadsorption and visible light photocatalytic performance, and is expected to become an ideal electrode material integrating electroadsorption and photocatalysis.

The application belongs to the technical field of tertiary oil recovery, and relates to a heavy oil viscosity reducer and a preparation method and application thereof.The preparation method is as follows: p-nonyl phenol, 1-(4-fluorophenyl)piperazine, 40wt% formaldehyde and water are added into a reactor, stirring is carried out, temperature is increased to reflux, and temperature is kept;temperature is reduced to below 40 DEG C, extraction is carried out, the obtained product is placed in a high-pressure reactor, sodium hydroxide solid is added, nitrogen is introduced, vacuum is drawn, temperature is increased, vacuum drawing is stopped, ethylene oxide is slowly introduced, temperature is increased, and temperature is kept;viscous liquid is obtained through reduced pressure distillation, the obtained product is placed in a high-pressure reactor, pH is adjusted to 3-4, aminosulfonic acid powder is added, stirring and heating are carried out, temperature is kept, and the obtained product is cooled to below 40 DEG C;ethanolamine is added, pH is adjusted to 7-8, and the heavy oil viscosity reducer is obtained.The viscosity reducer has the advantages of low surface tension, low interfacial tension, low critical micelle concentration and good viscosity reduction effect.

The invention discloses an injection and production system and method for improving the CO2 huff and puff effect of a shale and compact oil and gas reservoir based on high-pressure pressure-maintaining soaking, and belongs to the technical field of shale and compact oil and gas reservoir development. The constant temperature device comprises a CO2 intermediate container, an experimental oil intermediate container and a high-temperature and high-pressure reaction kettle which are arranged in a constant temperature box; the CO2 gas cylinder is respectively communicated with the CO2 intermediate container, the experimental oil intermediate container and the high-temperature and high-pressure reaction kettle; and both the CO2 intermediate container and the experimental oil intermediate container are communicated with the constant pressure pump. According to the method, the reservoir energy can be effectively maintained by adopting a high-pressure pressure-maintaining soaking technology, the problem of poor recovery efficiency caused by pressure drop in the CO2 huff and puff process can be effectively solved, the oil displacement effect of CO2 in the shale reservoir is remarkably improved, and the recovery degree of each turn can be remarkably improved.

This invention discloses a method for the synthesis of furfural and ethanol from green coconut (Cocos nucifera L.) husk. The method involves chemical reaction for furfural production and a biological fermentation for ethanol synthesis. In the chemical step, the green coconut husk undergoes acid hydrolysis in a high-pressure reactor, yielding furfural. The residual waste from this step is then utilized as a substrate for fermentation by Saccharomyces cerevisiae, producing ethanol. The integrated approach efficiently converts the cellulosic and hemicellulosic components of the green coconut husk into two industrially valuable compounds, furfural and ethanol, from a single agricultural waste stream. The invention provides a cost-effective and environmentally sustainable method for resource utilization and waste reduction.

Device and Method for Maintaining a Pressure Reactor Containment The present invention relates to a maintenance device (10) for a pressure reactor containment, comprising a connecting fitting (120) on a wall (20) of the containment, said connecting fitting (120) extending in a longitudinal direction (X) between an internal base (55) and an external base (60) and comprising: a) an insertion portion (65) intended to be positioned in a receiving recess (90) machined in the wall (20) of the containment, b) an external portion (70) intended to be positioned outside (30) of the containment and comprising a support element (105) intended to be placed opposite the wall (20) of the containment on a periphery (P) of the receiving recess (90), a fluid conduit (75) extending through the connecting fitting (120), a groove (88) of reception of a compression seal (100) being provided in the insertion portion,the maintenance device (10) comprising means for fixing said connecting branch (120) to the wall (20). Figure for the abbreviation: 4,

The application provides a kind of gas diffusion layer base material and its application in polymer electrolyte membrane fuel cell, the preparation of base material includes the following steps: S1, graphene oxide is added to n-hexane, nanofibrous iron-nickel alloy powder and melamine are stirred, the solution is moved to high-pressure reactor for hydrothermal reaction, calcination is carried out under inert gas atmosphere, product is obtained, the product is stirred in hydrochloric acid solution, filtration and washing are carried out, and N / C@Ni material is obtained;S2, short carbon fiber, modified polyurethane and adhesive are prepared into raw paper by dry papermaking or wet papermaking;S3, N / C@Ni material is added to anhydrous ethanol to obtain a solution, the raw paper of S2 is immersed in the solution, vacuum treatment, hot pressing, carbonization, and the target gas diffusion layer base material is obtained.The gas diffusion layer base material of the application has the characteristics of thin thickness and stable structure, can reduce the waterlogging phenomenon of fuel cell, improve the mass transfer capacity, and has good application prospect.

The invention provides a Cu-HHTP-S nanosheet material and a preparation method and application thereof.The preparation method comprises the steps that a copper source and an organic ligand are mixed in a solvent, foamed nickel is vertically placed in the solvent, a reaction is conducted in a high-pressure reaction kettle, and a Cu-HHTP nanoparticle material is obtained to serve as a precursor; a thiourea solution and the Cu-HHTP nano-particle material are placed in a high-pressure reaction kettle for a reaction, and the Cu-HHTP-S nano-sheet material is obtained. Compared with the prior art, the preparation method has the advantages that sulfur atoms are doped into organic ligands or metal nodes of MOFNs, so that a nanosheet structure can be generated while an original topological structure is reserved, and more active sites are obtained by increasing the specific surface area; the bonding force in the layer and between the layers is enhanced through strong chemical bonds, the structural collapse and volume expansion in the circulation process are effectively inhibited, and the chemical stability and conductivity are enhanced.

This application relates to a method for preparing multi-acid modified Cu₂MoS₄ electrode materials, belonging to the field of new energy materials and photoelectric conversion technology. An in-situ synthesis method is employed, using a one-step solvothermal preparation technique to dope Cu₂MoS₄ materials with SiW. 11 Co; includes the following steps: S1. Dissolve sodium molybdate and thioacetamide in ethylene glycol, and then add SiW to the solution. 11 Co is dissolved, and finally Cu2O is added. The above mixed solution is ultrasonically treated at room temperature for 10-15 min to obtain a uniform dark brown suspension. S2. After stirring for another 5 min, the precursor suspension is transferred to a high-pressure reactor for a solvothermal process of 22-24 h. S3. The reactor is cooled to room temperature, and the final product is washed three times each with deionized water and anhydrous ethanol by centrifugation, and then vacuum dried to obtain SiW. 11 Co / Cu2MoS4 composite material. This invention utilizes an appropriate amount of SiW... 11 The introduction of Co creates a rough structure on the surface of Cu₂MoS₄, increasing the number of active sites and the specific surface area. This results in catalytic performance and stability that are far superior to those of traditional Cu₂S counter electrodes and unmodified Cu₂MoS₄ counter electrodes.

This invention discloses a high-pressure reactor with adjustable baffles, which includes a reactor body, several baffle components and stirring components. The baffle components are evenly spaced along the length of the reactor body and arranged inside the reactor body to divide the interior cavity of the reactor body into several isolated chambers. Each baffle component includes a fixed baffle, a movable baffle, and a lifting drive mechanism. The stirring components are respectively set in each of the isolated chambers. The beneficial effect of this invention is that during stirring, the first through-slot is staggered with the second through-slot to enhance the blocking effect on the material, thereby improving the stirring effect and the pressure leaching efficiency. After stirring is completed, the movable baffle is driven by the lifting drive mechanism to move and align the first through-slot with the second through-slot, allowing the material to quickly enter the next isolated chamber. Thus, this device can improve the blocking effect of the baffles on the material, enhance the stirring effect, and increase the pressure leaching efficiency without affecting production efficiency.

The application discloses a backflow prevention system, which comprises a flow regulating valve, a cut-off valve, a check valve, a differential pressure low interlock and a signal processing unit. A feed pump is communicated with the flow regulating valve, the check valve, the cut-off valve and a high-pressure reactor in sequence. The differential pressure low interlock is communicated with an inlet pipeline connecting the feed pump and the flow regulating valve at one end and with an outlet pipeline connecting the cut-off valve and the high-pressure reactor at the other end. The output end of the differential pressure low interlock is connected with the input end of the signal processing unit in communication. The output end of the signal processing unit is connected with the control end of the flow regulating valve and the control end of the cut-off valve in communication. The signal processing unit controls the on-off of the flow regulating valve and the cut-off valve according to the differential pressure between the two ends of the differential pressure low interlock. The application realizes multi-stage protection of the high-pressure channeling low-pressure working condition by constructing a highly integrated backflow prevention system, and improves the safety of the high-pressure reaction system.

The invention belongs to the technical field of ethylene oxide electrocatalytic synthesis, and particularly discloses a preparation method and application of a double-interface electrocatalyst for preparing ethylene oxide, the preparation method comprises the following steps: synthesizing a carrier, dissolving a soluble tin salt and urea in deionized water, stirring until the mixture is completely transparent, and drying to obtain the double-interface electrocatalyst for preparing ethylene oxide. Then transferring into a high-pressure reaction kettle for high-temperature treatment, centrifuging to obtain white precipitate after treatment, and washing, drying and calcining the white precipitate to obtain crystalline SnO2 nanoparticles; the preparation method comprises the following steps: dipping crystalline SnO2 nanoparticles in a soluble cerium salt solution, drying after dipping, and calcining to obtain a CeO2 / SnO2 carrier; and loading silver on the CeO2 / SnO2 carrier to prepare the Ag-CeO2 / SnO2 catalyst. The prepared catalyst is applied to a reaction for preparing ethylene oxide through electro-catalysis, ethylene reacts with active oxygen species generated through decomposition of anode electrolyzed water or sulfuric acid in an indirect oxidation mode, and the prepared catalyst has higher selectivity on ethylene oxide; in addition, the electrolyte is H2SO4 and KOH, so that the problem of corrosion of halogen to equipment is avoided.

This invention discloses a method for preparing zeolite molecular sieves with precisely adjustable particle size, comprising the following steps: (1) adding aluminum source and other raw materials to deionized water and stirring evenly at room temperature; (2) adding silicon source, stirring at room temperature, and then adding template agent to obtain precursor slurry; (3) adding zeolite molecular sieve, the amount of zeolite molecular sieve being 1-15 mg / g of precursor slurry, transferring the precursor slurry to a high-pressure reactor, fixing it on a homogeneous reactor, heating to 0-150℃, maintaining for 1-200 h, and then heating to 160-230℃ for 3 hours to crystallize for 6-96 h; (4) obtaining zeolite molecular sieve after centrifugal washing, drying, and calcination. The innovation of the preparation method of this invention lies in the first use of a two-stage synthesis method, which can gradually reduce the particle size of the zeolite molecular sieve product while increasing the yield of zeolite molecular sieves. This method successfully synthesized SAPO-34 zeolite molecular sieve with a particle size deviation of less than 0.4 μm and ZSM-5 zeolite molecular sieve with a particle size deviation of less than 0.2 μm.

The present application relates to epoxy resin diluent, especially to a kind of active epoxy resin diluent and its preparation method and application.The present application first multi-functional epoxy compound and catalyst are added to high-pressure reactor, nitrogen is imported to discharge the air in autoclave, temperature is raised to set temperature and CO2 gas is imported, under certain pressure, reaction is started, after reaction, temperature is reduced, exhaust, filtration is obtained cyclic carbonate compound, i.e.active epoxy resin diluent;The cyclic carbonate compound obtained is mixed with epoxy resin uniformly, then amine curing agent is added, and modified epoxy resin is obtained after curing.The active epoxy diluent prepared in the present application can not only reduce the viscosity of epoxy resin, improve its construction performance, but also improve the comprehensive performance of epoxy resin, play the role of toughening modification.

The sampling device comprises a kettle body, a baffle, a sampling column and a movable motor, the baffle is vertically installed on one side of the inner side wall of the kettle body through a plurality of sets of fixing plates, a sampling channel is formed between the baffle and the side wall, and a sampling opening is formed in the position, over the sampling channel, of the top of the kettle body. The sampling column is vertically arranged in the sampling channel in a lifting mode through the sampling opening, multiple sets of sampling grooves are formed in the sampling column from top to bottom at equal intervals, the sampling grooves are provided with side upper openings, one side of the sampling column is provided with tooth grooves from top to bottom, the movable motor is fixedly installed at the top of the kettle body, and the output end of the movable motor is in driving connection with a movable gear through a belt wheel and a transmission belt. The movable gear is in meshing transmission with a tooth groove in one side of the sampling column. The multi-layer sampling device has the advantages that the multi-layer sampling of reactants in the high-pressure reaction kettle can be realized, and meanwhile, the sampling column can be electrically lifted through the movable motor, so that the sampling is more convenient.

This invention discloses an organic liquid energy storage carrier and its application, relating to the field of liquid organic hydrogen carrier technology. The organic liquid energy storage carrier of this invention is any one of p-fluorotoluene, m-fluorotoluene, o-fluorotoluene, and fluoromethylbenzene. The application method of this organic liquid energy storage carrier is as follows: 4Å molecular sieve, Rh catalyst, cesium carbonate, and the organic liquid energy storage carrier are sequentially added to a high-pressure reactor, and the reactor is sealed before hydrogen gas is introduced. Following this, microwave plasma pretreatment is performed, and then hydrogen gas is introduced until the pressure inside the reactor reaches 50 bar, followed by a hydrogenation reaction. After cooling, post-processing is performed to obtain the energy storage carrier. The organic liquid energy storage carrier of this invention not only possesses excellent safety and extremely low toxicity, but its application method also reduces reaction energy consumption and increases yield. Therefore, this invention has broader application prospects.

The invention relates to a nickel-based high-temperature alloy for a large-size high-temperature ultrahigh-pressure reaction kettle. The nickel-based high-temperature alloy comprises the following components in percentage by weight: less than or equal to 0.06% of C; less than or equal to 0.50% of Si; 0.50% or less of Mn; 1.5 to 2.0 percent of Ti; al < = 1.0%; cr: 14.5 to 17.5%; 2.5 to 3.3 percent of Nb; mo < = 2%; ni: 39.0 to 44%; co < = 1.0%; 0.01 to 0.5 percent of Mg; 0.20% or less of one or more of B and V elements; harmful elements are less than 2%; and the balance of Fe. The alloy has the advantages of high strength, good toughness and plasticity, excellent processability, low element segregation and the like, also has excellent high-temperature mechanical properties and high-temperature durability, can be used for a long time at high temperature and high pressure, can be widely applied to the fields of spaceflight and large gas turbines, especially large-size high-temperature ultrahigh-pressure reaction kettles, and has wide application prospects. And the production of the alloy forge piece for the reaction kettle with the nominal diameter phi of 140-500 mm can be met.

This invention belongs to the field of pivalic acid production technology, specifically a catalyst recycling device and a continuous pivalic acid production process, including a base; a hydrolysis reactor is fixedly connected to the base; by opening the solenoid valve on the second water pipe, the impurity layer is fed into the mixer, and bleaching clay is added into the feed pipe to mix with the impurity layer in the mixer. The mixed slurry is sent to the treatment tank for filtration, and finally the filtered liquid is pumped back to the hydrolysis reactor for recycling hydrolysis through the first return pipe; while the dilute sulfuric acid can be discharged from the hydrolysis reactor after the impurity layer is treated by opening the solenoid valve on the third water pipe for concentration treatment, and the concentrated sulfuric acid is returned to the high-pressure reactor for recycling. This device, through its layered structure design, achieves effective separation of various components and recycling of the catalyst in the continuous production of pivalic acid, which not only improves the overall production efficiency, but also reduces production costs and waste emissions, resulting in significant economic benefits.

This invention relates to the field of polymer synthesis technology. This invention provides a controlled polymerization method for a high-alternation-degree ETFE copolymer, comprising the following steps: (1) adding a solvent to a high-pressure reactor, replacing the air, and then filling it with an initial monomer mixture to a total pressure of 1.5-2.5 MPa, wherein the monomer mixture is a mixture of tetrafluoroethylene and ethylene; (2) heating to 60-85°C, adding an initiator to initiate the polymerization reaction; (3) simultaneously adding the monomer mixture continuously or semi-continuously during the polymerization reaction; (4) adding a chain transfer agent, and discharging the product after the reaction, i.e., the high-alternation-degree ETFE copolymer. This invention also provides a controlled polymerization method for a high-alternation-degree ETFE copolymer. This invention also provides an application of the high-alternation-degree ETFE copolymer in new energy, aerospace, high-end equipment manufacturing, and photovoltaic fields. The high-alternation-degree ETFE copolymer of this invention has high alternation degree (>92%), high thermal stability, and excellent mechanical properties.

This invention discloses a BiOBr S-type heterojunction composite photocatalyst, its preparation method, and its application, relating to the field of photocatalytic materials technology. It comprises layers and BiOBr nanosheets, with the layers and BiOBr nanosheets tightly composited to form an S-type heterojunction composite structure, the mass ratio of the layers to BiOBr being 85:15. S1. Preparation: Melamine is placed in a muffle furnace, heated and calcined, then cooled, ground, washed, and dried to obtain a layered structure. S2. In-situ growth of BiOBr: The BiOBr obtained in step S1 is dispersed in a mixed solvent... In step S2, ultrasonic treatment forms a suspension. Bismuth and bromine sources are added to the suspension, and after stirring evenly, it is transferred to a high-pressure reactor for hydrothermal reaction. Step S3. Drying: The product obtained in step S2 is the / BiOBrS type heterojunction composite photocatalyst. The / BiOBrS type heterojunction composite photocatalyst is prepared by in-situ growth method. The process is simple and does not require secondary calcination. It can enable BiOBr to form a heterojunction composite structure with a tight interface, effectively suppressing the recombination of photogenerated electron-hole pairs and improving carrier separation and migration efficiency.