311results about How to "Enhanced mass transfer" patented technology

The invention discloses immobilized bacteria-algae microspheres, a preparation method thereof and application of the immobilized bacteria-algae microspheres in removal of ammonia nitrogen and total phosphorus in aquaculture water. The preparation method comprises the following steps: adding polyvinyl alcohol and sodium alginate into deionized water, heating and sterilizing while fully dissolving polyvinyl alcohol and sodium alginate to obtain an embedding medium; adding the iron modified biochar powder into a mixed solution of chlorella and photosynthetic bacteria for adsorption to obtain a bacteria-algae-biochar mixture; adding the bacteria-algae-biochar mixture into an embedding medium to form a gel solution; adding the gel solution into a cross-linking agent for cross-linking, and after cross-linking, separating a solid and cleaning to obtain immobilized bacteria-algae microspheres; the preparation method of the iron-modified biochar powder comprises the following steps: adjusting the pH value of a mixed solution containing biochar powder, Fe < 2 + > and Fe < 3 + > to 9.5-10.5, carrying out heat preservation stirring at 75-85 DEG C for 1-5 hours, carrying out solid-liquid separation, taking a solid, washing, and drying to obtain the iron-modified biochar powder.

The invention relates to a cell culture microcarrier as well as a preparation method and application thereof. The cell culture microcarrier comprises a polymer porous microsphere with an inside-outside through pore channel structure. The cell culture micro-carrier comprises a biodegradable micro-carrier and also comprises a non-degradable micro-carrier, so that the growth of cells in the carrier is facilitated, and the mass transfer of nutrient substances and metabolites is also facilitated, thereby promoting the growth of the cells, enabling the cultured cells to keep good activity and function, and being high in proliferation efficiency; the method is suitable for three-dimensional culture of somatic cells, stem cells, tumor cells and the like.

The invention discloses a purification device for producing electronic-grade hydrofluoric acid, which relates to the technical field of hydrofluoric acid production, and comprises a rectifying tower body, tower plates movably connected in the rectifying tower body at equal intervals, overflow weirs fixedly connected on the tower plates, a rotating speed convenient regulation and control mechanism and a state monitoring feedback mechanism, the follow-up rod and the tower plates installed on the outer surface of the follow-up rod can be driven to synchronously rotate in the rectifying tower body, so that the gas-liquid contact area is increased, the gas-liquid contact time is prolonged, the mass transfer process between gas and liquid phases is promoted, in the rectifying process, the separation efficiency and purity can be improved, impurities in raw materials can be removed more easily, and the product quality is improved. And the rotation of the tower plate can enhance the mixing of the liquid on the tower plate, so that the liquid is more uniformly distributed on the tower plate, the residence time and dead zone of the liquid on the tower plate are favorably reduced, and the separation efficiency is further improved.

The invention discloses a rotary counter-hedge industrial waste gas desulfurization system and a process thereof, comprising a reaction cylinder, wherein a top cover is fixedly connected to the top of the reaction cylinder, and an air inlet pipe is arranged on one side of the top cover; the rotary stirring action of the transmission blades is helpful to maintain the uniform distribution and flow state of the gas-liquid two phases in the mixing cylinder, which can accelerate the material diffusion and mass transfer process, and can increase the gas-liquid contact surface, thereby improving the efficiency of the desulfurization reaction; at the same time, the dirt, sediment and residue on the inner wall surface of the reaction cylinder and the mixing cylinder are cleaned by a soft scraper and a cleaning brush, thereby reducing the obstruction of the dirt to the gas-liquid reaction, allowing the gas and liquid to flow and mix more smoothly, thereby improving the desulfurization efficiency of the equipment, and the continuously rotating nozzle can make the reaction liquid spray into the waste gas in a more uniform and wider manner, thereby increasing the contact area of ​​the gas-liquid two phases, thereby accelerating the mixing effect between the waste gas and the reaction liquid.

The invention discloses a micro-channel jet reactor. The micro-channel jet reactor comprises a sample introduction unit, a main mixing unit and a reaction unit which are sequentially communicated, the main mixing unit comprises a first inner pipe and a first outer pipe arranged outside the first inner pipe in a sleeving manner; a first annular space is formed between the first inner pipe and the first outer pipe; the sample introduction unit is communicated with the first inner pipe; a second sample inlet is formed in the first annular space, and a plurality of through holes are formed in the first inner pipe; the reaction unit comprises a second inner pipe and a second outer pipe arranged outside the second inner pipe in a sleeving manner; a second annular space is formed between the second inner pipe and the second outer pipe; the first inner pipe is communicated with the second inner pipe; during use, condensate is arranged in the second annular space. The reactor can effectively improve the mixing uniformity degree of reaction liquid, meanwhile, the reaction temperature is controlled, and the reaction rate and selectivity are ensured.

The invention provides a flexible braided electrode and an electrochemical polishing method for a complex inner channel, and belongs to the technical field of electrochemical machining. The flexible braided electrode is formed by mutually braiding a plurality of flexible conductive wires and a plurality of flexible insulating wires according to a certain interval, the diameter of the insulating wires is larger than that of the conductive wires, and steps with a certain height are naturally formed between the insulating wires and the conductive wires, so that short-circuit burn caused by contact between the conductive metal wires and an inner channel can be avoided, mass transfer can be enhanced, and product discharge can be accelerated; the flexible woven electrode is of a hollow net-shaped cylindrical structure, internal and external compound flushing can be achieved, and the flushing effect is improved. During polishing, the flexible braided electrode can be bent and deformed in a bent inner channel in a self-adaptive manner, internal and external compound flushing is performed by utilizing the internal and external through characteristic, and electrochemical polishing of the complex inner channel is realized by combining rotation and reciprocating motion of the electrode. The invention provides the flexible braided electrode with ingenious conception, and the flexible braided electrode is supplemented with an innovative process method, so that high-efficiency and high-quality finishing of a complex inner channel can be realized.

The invention discloses a zero-valent iron-carbon source-anaerobic digestion bacterium sustained-release microcapsule as well as preparation and application thereof, and belongs to the technical field of wastewater treatment. The preparation method comprises the following steps: S1, preparing a biochemical mixed embedding liquid containing an embedding material and a gel; s2, adding the biochemical mixed embedding liquid obtained in the step S1 into a cross-linking liquid, and performing cross-linking treatment to obtain the zero-valent iron-carbon source-anaerobic digestion bacterium sustained-release microcapsule, in the step S1, the embedding material comprises zero-valent iron, anaerobic digestion bacteria and a carbon source, and the zero-valent iron, the anaerobic digestion bacteria and the carbon source are jointly fixed inside and on the surfaces of the porous particles, so that loss of the zero-valent iron and the anaerobic digestion bacteria is effectively prevented, and passivation of the zero-valent iron is reduced; moreover, the carbon source is embedded in the immobilized particles, so that slow release of the carbon source is effectively realized, and dynamic balance of carbon source supply and biological requirements is realized.

The invention relates to a recyclable nuclear pore structure MOF nanometer flame retardant and a preparation method thereof, and belongs to the technical field of nanometer and flame retardant crossing. According to the MOF nano flame retardant with the nuclear pore structure, provided by the invention, after polyurethane foam is soaked in the high-concentration nano flame retardant, a foam material does not have a molten drop phenomenon, is self-extinguished after being away from fire and cannot be secondarily ignited, and the foam material shows good flame-retardant and heat-insulating effects and is outstanding in smoke suppression effect. And after being introduced into the foam material, the foam material has improved elasticity, and the nuclear pore structure endows the foam material with higher sound insulation and noise reduction effects.

The invention provides a PtCo-based composite catalyst and a preparation method and application thereof.The PtCo-based composite catalyst comprises a carrier and a load, the carrier comprises mesoporous carbon, the load comprises platinum-cobalt-based metal particles and a compound with the chemical formula being HxMO3, and M comprises W or / and Mo; a contact interface exists between the platinum-cobalt-based metal particles and the compound with the chemical formula of HxMO3; the platinum-cobalt-based metal particles comprise a first part of the platinum-cobalt-based metal particles, and the first part of the platinum-cobalt-based metal particles are supported in the mesoporous structure of the mesoporous carbon. According to the PtCo-based composite catalyst, a contact interface exists between HxMO3 and PtCo-based metal particles, the catalytic activity of platinum and cobalt can be improved, and reduction of oxygen on the surface of the catalyst is facilitated; part of platinum-cobalt-based metal particles are supported in a mesoporous structure of mesoporous carbon, so that the stability of the catalyst can be improved.

The invention provides a nano-porous Co3Ti / Co composite electrode as well as a preparation method and application thereof. The preparation method comprises the following steps: cleaning high-purity Co and Ti metal sheets, corroding oxides on the surfaces of Al metal sheets, then placing the Co, Ti and Al metal sheets in an electric arc furnace for melting to obtain alloy ingots, then preparing small alloy ingots through a directional solidification technology, and carrying out corrosion treatment on the alloy ingots to finally obtain the nano-porous Co3Ti / Co composite electrode. According to the electrode, a Co3Ti / Co intermetallic compound is seamlessly integrated on a Co ligament with a dual-mode pore structure (large pores are about 200nm, and small pores are about 3nm), so that the specific surface area of an electrode material is effectively increased, and the mass transfer and electron transport capabilities of an electrolyte are improved. Meanwhile, Co and Ti sites in the intermetallic compound are beneficial to adsorption of H and OH intermediates respectively, so that water dissociation and * H adsorption / desorption processes are promoted, alkaline hydrogen evolution reaction kinetics is remarkably enhanced, and an efficient electrode material is provided for hydrogen production application.

In the device, a plurality of low-temperature plasma reactors are fixed in an absorption liquid storage tank in an array manner, a quartz tube is immersed in liquid in the absorption liquid storage tank, and a plurality of through micropores are uniformly distributed in the bottom of the quartz tube; the lower end of the connecting fastener is fixed with the orifice of the quartz tube, and the side edge of the connecting fastener is provided with an air tube; the metal electrode is fixed through the upper end of the connecting firmware and extends into the quartz tube to serve as a high-voltage electrode; the discharge power supply is connected with the metal electrode and the ground electrode, so that the low-temperature plasma reactor generates bubble plasma in liquid; the electrolytic cell is communicated with an absorption liquid storage tank through a switch pipeline, the working electrode is provided with foamy copper as an electro-catalysis material, and the working electrode, the platinum wire counter electrode and the silver / silver chloride reference electrode form a three-electrode electrochemical structure to electrocatalytically synthesize ammonium nitrate in the electrolytic cell.

This invention relates to the field of air pollution control technology, and in particular to a spray tower for effectively purifying air pollution. The spray tower includes an air inlet fixed to the bottom of one side, a suction hood fixed to the upper surface of the spray tower, and an exhaust pipe fixed to the top of the suction hood. An anti-clogging recovery component and a spraying mechanism are installed inside the spray tower, and a collection box is fixed to one side of the spray tower corresponding to the position of the anti-clogging recovery component. This invention utilizes a spray pipe mechanism to enhance the rate of the neutralization reaction through the synchronous rotation of a rotating disk and a rotating block, and enhances the spatial separation of the two solutions through centrifugal force, reducing cross-mixing. This avoids ineffective neutralization of acid and alkali solutions and achieves continuous and efficient treatment. Combined with the anti-clogging recovery component, the activated carbon balls inside the fixed cylinder are promptly recovered and cleaned, ensuring that efficiency is not reduced due to clogging during air pollution purification, and preventing ineffective adsorption of activated carbon balls due to prolonged use.

The invention belongs to the technical field of photovoltaic target materials, and particularly relates to an indium titanium cerium niobium oxide ceramic target material, a preparation method and application thereof, and a transparent conductive oxide film. The indium titanium cerium niobium oxide ceramic target material comprises the following components: indium oxide, titanium oxide, cerium oxide and niobium oxide, the mass ratio of indium oxide to titanium oxide to cerium oxide to niobium oxide is 97-99: 1-0.3: 1-0.3: 1-0.2, the transparent conductive oxide film has high density, high purity and high strength, and the transparent conductive oxide film prepared from the transparent conductive oxide film has high carrier mobility, high conductivity and high light transmittance.

The invention belongs to the technical field of electrochemical engineering, and relates to a three-dimensional electrochemical reactor which comprises a reactor shell assembly, three-dimensional electrode modules, counter electrode modules, diaphragms or polymer partition plates and an external power supply, the counter electrode modules are arranged in pairs, and the three-dimensional electrode modules are clamped between the counter electrode modules arranged in pairs; the diaphragm or the polymer partition plate is clamped between the electrode surface of the counter electrode module and the electrode surface of the three-dimensional electrode module, and the three-dimensional electrode module, the counter electrode module and the diaphragm or the polymer partition plate are arranged in an inner cavity of the reactor shell assembly; according to the invention, the fluid can flow through the interior and surface of the three-dimensional electrode, and a main electrochemical reaction field is transferred to the interior and surface of the three-dimensional electrode, so that the sufficient flow and mixing of the fluid between the electrodes are ensured while the electrode spacing is shortened as far as possible, the solution resistance is reduced, the cell voltage is reduced, and the current efficiency is improved; and energy consumption increase and equipment damage caused by overhigh voltage are avoided.

The invention relates to the technical field of ceramic membranes, in particular to a ceramic sintering aid and application thereof. The ceramic sintering aid is prepared from, by weight, 2-4 parts of manganese dioxide and 4-8 parts of modified aluminum powder, the modified aluminum powder comprises aluminum particles, and the surfaces of the aluminum particles are wrapped with epoxy resin layers. The mass ratio of the aluminum particles to the epoxy resin is (2-3): 1. Based on the fact that low-valence manganese ions are not resistant to corrosion, the corrosion resistance of the manganese ion-containing ceramic is improved by wrapping the ceramic particles with the corrosion-resistant layer. Meanwhile, the melting point of aluminum oxide is extremely high, and a coating layer is very difficult to form, so that aluminum powder is coated with resin, ceramic is sintered in an inert gas atmosphere, the resin is gasified at a high temperature, and aluminum is molten to form a liquid phase to coat raw material particles; after cooling, the atmosphere is changed into an air atmosphere, so that the molten aluminum is oxidized to form a compact aluminum oxide layer, low-valence manganese oxide which is easily corroded by acid is isolated, and the high-compactness and corrosion-resistant performance of the ceramic is achieved.

The invention belongs to the technical field of ceramic preparation, and particularly relates to a tin oxide ceramic material and a preparation method and application thereof. According to the invention, oxygen vacancies are introduced into the conductive doped oxide, so that the conductivity of tin oxide is greatly improved; the sintering aid promotes liquid-phase sintering of the biscuit in the sintering process, so that the problem of sintering difficulty caused by volatilization of tin oxide at a high temperature of 1200 DEG C is solved, particle rearrangement and mass transfer processes are greatly promoted, and sintering densification of tin oxide is promoted; due to the introduction of gallium oxide, not only is pinning at the tin oxide grain boundary to prevent grain growth and obtain uniform and fine grain size, but also the conductivity of the ceramic material is further improved. The tin oxide ceramic material obtained by the invention has the characteristics of high density, low resistivity and uniform and fine crystal grains. Meanwhile, the preparation process is simple and suitable for industrial production.

The invention relates to a ruthenium-based catalyst, a preparation method thereof and application of the ruthenium-based catalyst in water electrolysis hydrogen production, the ruthenium-based catalyst is a porous material, and the content of ruthenium element is 70% or above in percentage by mass; a characteristic peak of elemental ruthenium exists in an XRD spectrogram of the ruthenium-based catalyst. When the catalyst disclosed by the invention is used as a cathode catalyst or an anode catalyst in water electrolysis hydrogen production, the catalyst has good mass transfer effect and conductivity, excellent catalytic activity and excellent stability.

The invention relates to the technical field of organic synthesis, in particular to a method for continuously synthesizing a pyroxasulfone intermediate, which at least comprises the following steps: mixing polyformaldehyde and a compound I to prepare a solution A, respectively introducing the solution A and sulfonyl chloride into a micro-channel reactor for chloromethylation reaction, and after the reaction is finished, carrying out post-treatment to obtain the pyroxasulfone intermediate. The compound I is 1-methyl-3-trifluoromethyl-5-difluoromethoxy-1-H-pyrazole, and the compound II is a compound III. The pyroxasulfone intermediate is 1-methyl-3-trifluoromethyl-4-chloromethyl-5-difluoromethoxy-1-H-pyrazole, and the structural formula of the pyroxasulfone intermediate is shown in the description. By adopting the microchannel reactor, mass transfer between two-phase fluids can be enhanced, rapid and sufficient mixing of two strands of materials is realized, so that the reaction process is enhanced, the flow rate, the reaction temperature, the reaction time, the pressure and the like are controlled for reaction, and the method has the characteristics of high purity, high yield, simple synthesis process, no pollution and easy treatment of three wastes, and is suitable for industrial production. The industrial application is facilitated.

The invention provides a carbon carrier for a catalyst, a preparation method of the carbon carrier, a fuel cell catalyst and a membrane electrode, and belongs to the technical field of fuel cells. The preparation method comprises the following steps: S1, uniformly mixing a carbon source, a nitrogen source, a phosphorus source and a template agent to obtain a mixture; wherein the template agent is selected from at least one of magnesium oxide, magnesium hydroxide, magnesium citrate, magnesium gluconate, magnesium acetate, basic magnesium carbonate, zinc oxide nanorods, titanium dioxide and mesoporous alumina; the mass ratio of the template agent to the carbon source is (0.1-15): 1; s2, calcining the mixture to obtain a calcined product; and S3, stirring the calcined product in an acid solution, filtering, washing and drying to obtain the carbon carrier. The carbon carrier obtained by the preparation method can have a relatively high mesopore ratio, an excellent graphitization degree and a proper heteroatom doping condition at the same time, and the electrochemical performance and durability of a fuel cell catalyst can be effectively improved.

The invention relates to a fluorine-based three-dimensional covalent organic framework material as well as a preparation method and application thereof, and belongs to the technical field of covalent organic framework materials. Under the action of a catalyst, a first monomer (the first monomer is selected from a regular tetrahedron-containing amino monomer or a regular tetrahedron-containing aldehyde group monomer) and a second monomer (the second monomer is selected from a fluorine-containing aldehyde group monomer or a fluorine-containing amino monomer) are subjected to a condensation reaction in an organic solvent to obtain the fluorine-based three-dimensional covalent organic framework material. The method comprises the following steps of: preparing a solid-phase microextraction probe by taking the perfluorinated compound as an adsorbent through in-situ growth on the surface of a probe matrix, and then combining the solid-phase microextraction probe with an open-type mass spectrum to detect trace perfluorinated compounds in a complex matrix. The fluorine-based three-dimensional covalent organic framework material disclosed by the invention is good in chemical stability and high in hydrophobicity, has a good adsorption effect on perfluorinated compounds, and is high in repeated utilization rate.

The invention discloses a preparation method of a self-supporting three-dimensional electrocatalyst with an adjustable pore structure and ordered metal distribution. The method is divided into the following two methods according to different adding steps of metal nanoparticles or metal precursors: the method I comprises the following steps: 1) preparing a porous organic polymer by adopting an ice template method; 2) dissolving a metal precursor in an ethanol solution at room temperature, mixing with the porous organic polymer carrier, and standing until ethanol is completely volatilized to obtain a porous organic polymer with orderly distributed metals; and 3) performing high-temperature carbonization on the porous organic polymer with orderly distributed metals to obtain the porous organic polymer. The method II comprises the following steps: a) preparing a porous organic polymer with orderly distributed metals by adopting an ice template method; and b) carrying out high-temperature carbonization on the porous organic polymer with orderly distributed metals. The application of the porous organic polymer material in the fields of catalysis, composite material modification, supercapacitors and the like in other fields can be expanded through copolymerization or addition of functional fillers (such as magnetic particles, conductive fillers and the like).

The invention provides a method for producing succinic acid by immobilized cells, and belongs to the technical field of fermentation. The fermentation culture medium comprises the following components: 50 to 54 g / L of glucose, 8 to 10 g / L of corn steep liquor, 5.7 to 5.9 g / L of monopotassium phosphate, 6.3 to 6.5 g / L of dipotassium phosphate, 0.17 to 0.22 mg / L of calcium chloride, 1.67 to 1.73 mg / L of cobalt chloride hexahydrate, 0.46 to 0.50 mg / L of zinc sulfate heptahydrate, 1.6 to 1.8 mg / L of biotin, 6.0 to 6.5 mg / L of nicotinamide, 8.2 to 8.5 mg / L of vitamin B5 and 0.32 to 0.34 g / L of an active agent. By adopting the method disclosed by the invention, the succinic acid production rate is high, the malic acid content is low, the immobilized microspheres can be repeatedly fermented for multiple times, and the succinic acid content of a single batch is stable and is always kept at a relatively high level.

The invention belongs to the field of air electrode materials of zinc-air batteries, and discloses an asymmetric self-supporting bifunctional oxygen electrode as well as preparation and application thereof. The asymmetric self-supporting bifunctional oxygen electrode comprises a self-supporting sheet material, two surfaces of the self-supporting sheet material are respectively covered with different catalysts, and one surface of the self-supporting sheet material is covered with at least one of a transition metal oxide, a hydroxide, a metal alloy and a porous transition metal alloy; and the other surface of the substrate is covered with a nitrogen-carbon-coated transition metal film or a nitrogen-carbon-coated double-transition metal film. According to the asymmetric electrode prepared by the invention, spatial confinement distribution is carried out on a high-activity OER / ORR catalyst, the mass transfer problem of the zinc-air battery is improved by adjusting an asymmetric aerophile / aerophobic microenvironment, diffusion and transmission of oxygen and a reaction intermediate are more facilitated by proper three-phase interface dynamic equilibrium, the reaction efficiency and the electrode stability are improved, and the service life of the zinc-air battery is prolonged. And the kinetic process and reversibility of the catalytic reaction on the self-supporting cathode are improved.

The invention discloses a hindered Lewis acid-base pair type oxygen-enriched defect hydroxyl vanadium oxide Fenton-like catalyst as well as a preparation method and application thereof, and belongs to the technical field of water treatment. The preparation method comprises the following steps: adding vanadate into deionized water, and ultrasonically stirring to obtain a vanadate solution; adding a peroxydisulfate solution into the vanadate solution drop by drop, uniformly stirring, and then adding ammonia water; carrying out hydrothermal reaction on the suspension to obtain precursor powder; and spreading the precursor powder on conductive glass, placing the conductive glass in a plasma discharge device, vacuumizing, introducing gas, and then starting up for discharge treatment to obtain the vanadium oxyhydroxide. According to the invention, oxygen vacancies are produced on the material through a discharge treatment process, so that a local coordination environment of adjacent spaces of V and-OH is changed, unbonded Lewis acid and Lewis base with close steric hindrance form a hindered Lewis acid-base pair, and the hindered Lewis acid-base pair as a Fenton-like catalyst can enhance and activate peroxide to generate a large number of active oxide species to degrade antibiotic pollutants.

The invention discloses vinegar residue biomass charcoal as well as a preparation method and application thereof, and belongs to a resource recycling technology. The preparation method of the biomass charcoal comprises the following steps: pyrolyzing vinegar residues under an anaerobic condition, and cooling to room temperature to prepare vinegar residue biomass charcoal; the pyrolysis temperature is 400-600 DEG C, and the pyrolysis time is 2-4 hours. The prepared vinegar residue is alkaline biomass charcoal which is large in specific surface area and high in adsorption capacity, has a porous structure and has an adsorption effect on heavy metal ions in a water body. The method not only can effectively utilize wastes, but also can react to purification of a water body environment, and solves the technical problem of low efficiency of adsorbing heavy metal ions by using vinegar residues in the prior art.

The utility model discloses a gas-liquid mixing feeding device and an alkaline wastewater treatment system, which belong to the field of wastewater treatment, and comprise a Venturi tube, a first one-way valve, a cylinder body, a piston, a connecting rod, a first oscillating rod, a second oscillating rod, a motor, a first rotating shaft, a first feeding tube, a second feeding tube, a second one-way valve and a third one-way valve, the venturi tube comprises a contraction section, a throat tube section and a diffusion section which are sequentially arranged from left to right, the diffusion section of the venturi tube is fixedly communicated with a cylinder body, and the diffusion section is provided with a first one-way valve. According to the device, carbon dioxide can be well dissolved in alkaline wastewater through premixing and pressurizing treatment, the reaction efficiency and effect are good, and the carbon dioxide is recycled through decompression treatment after treatment is finished.

The invention discloses an efficient low-carbon vertical tank supergravity mixed magnesium smelting device and method.The device comprises a furnace body and a supergravity solid-liquid mixing system, and the supergravity solid-liquid mixing system comprises a first-stage material gathering taper pipe fixedly arranged in the furnace body and a second-stage material gathering taper pipe provided with a discharging port; a liquid-solid mixing reaction material tank internally and fixedly connected with a solid raw material distributing plate is arranged above the first-stage material gathering taper pipe, the liquid-solid mixing reaction material tank is fixedly connected with a solid raw material feeding pipe provided with a solid raw material feeding vacuum valve, and the solid raw material feeding pipe is rotationally connected with the furnace body and connected with a transmission assembly. A liquid-state reducing agent atomizing disc is fixedly arranged in the liquid-solid mixing reaction material tank and is rotationally connected with a liquid-state reducing agent feeding pipe provided with a liquid-state reducing agent feeding vacuum valve; the furnace body is connected with the magnesium steam collecting system, the magnesium steam collecting system is connected with the vacuumizing system, and a slag outlet is formed in the bottom of the furnace body and connected with a sealing piece. According to the invention, the reaction efficiency is improved, the energy consumption is reduced, and energy conservation and emission reduction are realized.

The invention provides a copper-based adsorbent and application thereof in a glove box purification column, and belongs to the technical field of catalysts containing metals or metal oxides. The method comprises the following steps: adding active metal salt into a solvent, mixing and dissolving to obtain a mixed metal salt solution, mixing and dissolving a precipitant and the solvent to obtain a precipitant solution, co-precipitating the mixed metal salt solution and the precipitant solution, and separating, drying and calcining the obtained precipitate to obtain the supported copper-based adsorbent with the size phi of 1.8-6 mm. The copper-based adsorbent provided by the invention has good oxygen removal performance and regeneration capacity, can be continuously produced and is short in reaction time.

The utility model provides a static solid interface-based bubble coalescence device and digestion reactor, the device comprises a bubble coalescence member arranged in the reactor, the bubble coalescence member comprises a bubble collecting and releasing part and an inclined plate obliquely arranged in the reactor, the bubble collecting and releasing part is connected with the upper part of the inclined plate; the bubble collecting and releasing component is provided with a gas collecting channel, the bottom of the gas collecting channel is opened downwards, the inclined bottom face of the inclined plate is located below the opening, a gas releasing hole is formed in the top of the bubble collecting and releasing component, and the gas collecting channel is communicated with the gas releasing point; and the surface of the inclined plate is made of a hydrophobic material. According to the technical scheme, the inclined plate is used for collecting small bubbles and promoting coalescence of the bubbles during collision, and after the bubbles are coalesced into large bubbles, the kinetic energy of the bubbles is released to improve the mixing effect in the reactor, so that the digestion reaction rate is increased, and the mixing energy additionally required by the digestion reaction is reduced.

The utility model relates to a reaction kettle which comprises a kettle body and a driving mechanism arranged on the kettle body, a guide cylinder and a stirrer linked with the driving mechanism are arranged in the kettle body, a plurality of transverse baffle rings are arranged on the inner circumferential wall of the guide cylinder, and a plurality of openings positioned on the lower side of each transverse baffle ring are formed in the circumferential wall of the guide cylinder. An annular frame linked with the driving mechanism is further rotatably arranged on the peripheral wall of the flow guide cylinder, a plurality of arc-shaped plates capable of covering the openings are arranged on the annular frame, the number of the arc-shaped plates corresponds to that of the openings, and when the annular frame rotates, the arc-shaped plates alternately open or close the openings, so that the flow in the flow guide cylinder flows from top to bottom under the action of the stirrer, and the flow in the flow guide cylinder is uniform. The flowing sectional area of the fluid at each transverse baffle ring is shrunk and expanded, so that the fluid is accelerated and then decelerated, and multi-stage shearing and turbulent flow are generated; meanwhile, the opening circulation on the guide cylinder is opened and closed, so that the dynamic change of the flow field structure between multi-stage shunting circulation and single bottom return is realized, and the mixing efficiency of the reaction kettle is improved.