29results about How to "Guaranteed reaction efficiency" patented technology

The invention provides a precipitation method of a heavy metal solution. Cations in the heavy metal solution comprise nickel ions, cobalt ions, copper ions, zinc ions and manganese ions, and the precipitation method comprises the following steps: step S100, carrying out a manganese conversion reaction on an alkaline substance by adopting a solution containing manganese ions to obtain a converted manganese precipitate; s200, a stabilizing agent is adopted for carrying out a stabilizing reaction on the converted manganese precipitate, and a stable manganese precipitate is obtained; step S300, adding the stable manganese precipitate into a heavy metal solution for precipitation reaction to obtain precipitate slurry; step S400, continuously carrying out solid-liquid separation on the precipitate slurry to obtain a heavy metal precipitate and a manganese-containing solution; and S500, raw materials including the manganese-containing solution, an oxidizing agent and alkali liquor are subjected to an oxidation precipitation reaction, and a post-precipitation solution and a manganese product are obtained. The method solves the problems of poor sedimentation and filtration performance of a precipitation product, high moisture content of the precipitation product and low precipitation efficiency when heavy metals are precipitated in the heavy metal solution.

The invention relates to the technical field of wastewater treatment, in particular to an industrial wastewater comprehensive recycling device and a process thereof.The industrial wastewater comprehensive recycling device comprises a recycling barrel, a transverse plate is fixedly mounted at the upper end of the recycling barrel, and a motor is fixedly mounted at the upper end of the transverse plate. The movable rod can slide along a spiral chute formed in a spiral chute column, so that the spiral chute column is pushed to drive a stirring blade shaft II to rotate in the dispersion barrel, and the arranged stirring blade shaft II is convenient for fully stirring industrial wastewater and a chemical reagent in the dispersion barrel; the chemical reagent in the dispersing barrel can be further promoted to be fully mixed with the industrial wastewater, the mixed chemical reagent can quickly and uniformly permeate into the recycling barrel from the lower end of the dispersing barrel to react with the industrial wastewater, and the working efficiency is improved; and the inner bottom end of the dispersion barrel is prevented from being blocked.

The invention discloses a solid calcium-based carbon dioxide trapping system coupled with a coal-fired boiler and a method thereof, and belongs to the technical field of environmental protection. According to the system, a fixed bed is adopted as a reactor for absorbing CO2, CaO solid is adopted as a CO2 adsorbent, a large amount of water does not need to be consumed, and meanwhile the problem that a liquid chemical reagent serves as the CO2 adsorbent can be effectively solved. The system can efficiently capture CO2 and realize regeneration of the solid calcium-based absorbent through a fixed bed technology. And the vast majority of heat of high-temperature flue gas generated by the hot smoke generator is coupled with the coal-fired boiler, so that not only is the efficient recovery of energy promoted, but also the energy consumption of CO2 capture is remarkably reduced, and an economical and feasible strategy is provided for realizing the low-carbon target. According to the technical scheme provided by the invention, efficient capture of carbon dioxide in the flue gas discharged by the coal-fired power plant can be realized.

The invention relates to the technical field of wastewater treatment, in particular to a high-concentration unsymmetrical dimethylhydrazine wastewater treatment method which comprises the following steps: A) performing filtration pretreatment on unsymmetrical dimethylhydrazine wastewater; b) directly performing electron beam circulating irradiation treatment on the filtered wastewater, and accumulating the electron beam absorbed dose without adding chemical agents; c) detecting unsymmetrical dimethylhydrazine concentration and COD (Chemical Oxygen Demand) concentration of the wastewater subjected to electron beam irradiation treatment; when the removal rate of unsymmetrical dimethylhydrazine in the wastewater is greater than or equal to 90% and the removal rate of COD (Chemical Oxygen Demand) is greater than or equal to 80%, the wastewater enters an electrochemical reactor to be subjected to electrochemical reaction; d) detecting unsymmetrical dimethylhydrazine concentration and COD (Chemical Oxygen Demand) concentration of the wastewater after the electrochemical reaction; and when the concentration of unsymmetrical dimethylhydrazine in the wastewater is less than 0.5 mg / L and the COD is less than 120mg / L, entering the next step of treatment when the treatment requirement is met. According to the method, the degradation rate of unsymmetrical dimethylhydrazine and the COD removal rate can be effectively improved, and harmless treatment of the wastewater can be realized by adopting simple operation steps.

The present invention discloses a device and method for treating phosphorus-containing wastewater and recovering phosphorus resources by an iron-air battery. The positive and negative electrodes respectively use a low-cost iron electrode and an air electrode. Wastewater containing phosphate is added to the anode chamber, and a sodium chloride solution is added to the cathode chamber as an electrolyte; the negative and positive chambers are separated by a proton exchange membrane and connected by an external wire. The potential difference causes the iron anode to lose electrons, and the generated ferrous ions react with the phosphate in the anode liquid to generate blue iron ore; the electrons reach the air electrode via an external wire, and the oxygen in the air reacts with the electrons received by the cathode to generate water; the protons inside the battery move through the proton exchange membrane to form a loop, and an open circuit voltage of 1.2V can be generated in the external circuit. The present invention uses the ferrous ions generated in situ by the iron electrode as a dephosphorizing agent, and without introducing other impurity ions, it realizes wastewater dephosphorization, and can also recover phosphorus resources and electric energy in the wastewater.

The utility model discloses a kind of polysilicon hydrogenation device silicon powder high-efficiency recovery system, including fluidized bed reactor, further including inner cyclone separator, double cyclone separator, metal filter and silicon powder collecting tank;Multiple inner cyclone separators are fixedly arranged in the top inside fluidized bed reactor by fixed support;The air outlet of multiple inner cyclone separators is communicated with the air inlet of gas collector, and the air outlet of gas collector is communicated with the reaction gas outlet in the top of fluidized bed reactor;The reaction gas outlet of fluidized bed reactor is communicated with the air inlet of double cyclone separator by pipeline, and the air outlet of double cyclone separator is communicated with the air inlet of metal filter by pipeline.The advantage is that: by three-stage gradient separation, silicon powder recovery efficiency is greatly improved;Silicon powder separated by double cyclone separator can be returned to fluidized bed reactor dense phase region through return chute pipe, realize raw material recycling, reduce silicon powder waste.

The invention provides special phenyl silicone oil for cosmetics and a preparation method of the special phenyl silicone oil, and belongs to the technical field of material chemistry. The preparation method comprises the following steps: carrying out prepolymerization and ring-opening copolymerization reaction on raw materials including trimethyl triphenyl cyclotrisiloxane, diphenyl double-end socket and a solid catalyst to obtain a copolymer; carrying out reduced pressure distillation on the copolymer to obtain special phenyl silicone oil; the solid catalyst is obtained by the following steps: preparing a magnetic core material containing an anionic polymer; carrying out coating treatment on the magnetic core material by adopting an organic matter containing a cationic polymer to obtain magnetic particles; preparing a silicon dioxide porous carrier by adopting a raw material comprising magnetic particles; ammonium dihydrogen phosphate is loaded on a silicon dioxide porous carrier, and an acidic solid catalyst is obtained. According to the method, the catalyst which is good in catalytic effect and convenient to recycle and recycle is adopted, so that the environment-friendly degree of phenyl silicone oil production is improved, and the production cost is reduced.

The invention relates to the technical field of waste mercury catalyst recycling, in particular to a waste mercury catalyst recycling device and method.The waste mercury catalyst recycling device comprises a recycling furnace, a reacting furnace and a calcining furnace, the recycling furnace is used for recycling waste mercury catalysts, the reacting furnace is used for boiling the waste mercury catalysts and lime milk, and the calcining furnace is used for calcining the waste mercury catalysts; the calcining furnace is used for carrying out pyrogenic process smelting on the reacted waste mercury catalyst, a discharging pipe is arranged at the bottom of the recycling furnace, and the recycling furnace is communicated with the reacting furnace through the discharging pipe at the bottom; and a fixing frame is mounted on the outer side of the recovery furnace. The waste mercury catalyst crushing mechanism is arranged, so that waste mercury catalysts in the storage barrel are sequentially and fully crushed, the waste mercury catalysts meeting the particle size fall into the reaction furnace, it is guaranteed that the crushed waste mercury catalysts and lime milk are subjected to a full boiling reaction, the reaction efficiency of the waste mercury catalysts is guaranteed, and the waste mercury catalyst recycling device is suitable for industrial production. Meanwhile, the subsequent mercury recovery rate is ensured.

The invention discloses a production process of an anti-dripping flame retardant, and relates to the technical field of flame retardant production. The production process of the anti-dripping flame retardant comprises the following steps: S1, substitution: after checking that production equipment is in a normal state, firstly adding slightly excessive PC13 into a substitution reaction kettle according to a ratio, stirring, and checking that a process gas recovery system is in a normal state again. According to the production process of the anti-dripping flame retardant, the introduced chlorine is more uniform and sufficient, the chlorination efficiency can be improved, and the effect is better; the opening height range of the air outlet hole can be conveniently adjusted according to the height of the liquid level in the chlorination kettle, chlorine is ensured to be directly introduced into liquid and prevented from directly entering the position above the liquid level, the reaction efficiency and effect are ensured, and the utilization rate of the chlorine is ensured; the color of liquid at different depths can be conveniently sampled and detected, the device is more convenient, quicker, more accurate and more reliable, the accuracy of judging the reaction process is improved, and the reaction efficiency and effect are further ensured.

The utility model discloses a reaction device for producing chlorinated alkyl polyphosphate, and relates to the technical field of reaction tank devices. The reaction tank comprises a reaction tank main body, a feed pipe; a storage box; and a feeding mechanism. According to the utility model, the feeding mechanism is arranged; the catalyst stored in the material storage box is conveniently guided into the reaction tank main body through the reciprocating movement of the movable plate, then the material and the guided catalyst are uniformly stirred through the stirring plate in a stirring state, and the amount of the catalyst entering the reaction tank main body is a fixed value in one cycle of the reciprocating movement of the movable plate. The effect of quantitatively introducing the catalyst into the reaction tank main body is achieved, the catalyst is quantitatively and continuously conveyed into the reaction tank main body, the normal reaction process of materials in the reaction tank main body is ensured, and compared with a traditional mode of integrally introducing the catalyst into the reaction tank main body, the contact uniformity of the catalyst and the materials is improved; therefore, the reaction efficiency of the material and the catalyst is ensured.

The invention belongs to the technical field of organic chemistry, and particularly relates to a preparation method of 1-adamantane acetic acid-2, 2-difluoro-2-ethyl sulfonate, which comprises the following steps: taking methyl fluorosulfonyl difluoroacetate as an initial raw material, carrying out reduction reaction on the methyl fluorosulfonyl difluoroacetate and sodium borohydride, then carrying out nucleophilic substitution reaction on the obtained product and adamantane formyl chloride, and finally carrying out recrystallization to obtain the 1-adamantane acetic acid-2, 2-difluoro-2-ethyl sulfonate. The 1-adamantane acetic acid-2, 2-difluoro-2-ethyl sulfonate is obtained after the reaction is completed; the process disclosed by the invention is simple in steps, and the prepared 1-adamantane acetic acid-2, 2-difluoro-2-ethyl sulfonate is high in purity, high in yield and strong in application performance.

The invention provides environment-friendly vinyl silicone oil and a preparation method thereof, and belongs to the technical field of material chemistry. The preparation method of the environment-friendly vinyl silicone oil comprises the following steps: feeding cyclic polysiloxane and an end-capping reagent into a reaction device, and heating and dehydrating under inert gas protection and vacuum conditions; adding a solid catalyst into the reaction device, and heating for reaction; adjusting substances in the reaction device to be neutral, and performing reduced pressure distillation to remove low-boiling-point substances to obtain vinyl silicone oil; the solid catalyst is prepared by the following steps: preparing a magnetic core material; coating the surface of the magnetic core material to obtain magnetic particles; preparing a porous carrier from a raw material comprising magnetic particles; and loading the catalyst on a porous carrier to obtain the solid catalyst. According to the method, the catalyst which is good in catalytic effect and convenient to recycle and recycle is adopted, so that the environment-friendly degree of vinyl silicone oil production is improved, and the production cost is reduced.

The utility model discloses a tail gas purification treatment device of biological oxidation gold extraction relates to tail gas purification treatment device technical field, the utility model discloses a main frame mechanism, the main frame mechanism includes the purification tower, the left side fixedly connected with the air inlet pipeline of purification tower outer surface, the top fixedly connected with the exhaust pipe of purification tower, the bottom fixedly connected with the deflector of purification tower inside, the utility model discloses a purification subassembly is set up, specifically is through setting up multilayer carbon filling layer, and carbon filling layer adopts the mixture of active carbon and modified molecular sieve, can increase the contact area and contact time of tail gas and absorption liquid and adsorbent, improve the removal efficiency to harmful gas, simultaneously, sodium hydroxide and hydrogen peroxide in absorption liquid can carry out chemical reaction and oxidation decomposition to different properties harmful gas, thereby realize the efficient purification to multiple harmful gas, effectively reduced the emission concentration of harmful substance in tail gas, and the environmental protection emission standard has been greatly improved.

The invention discloses a device and method for preparing boron trichloride gas. An electric heating fixing barrel is connected to the inner side of a positioning operation frame, a transmission motor is installed at one end of the electric heating fixing barrel through a motor base, a double-shaft motor is installed at the other end of the electric heating fixing barrel through a motor base, and a storage overturning barrel is clamped to one end of one output shaft of the double-shaft motor; the raw materials are stirred through two sets of overturning, air is evenly fed, the heating area and the air contact area are increased, the raw materials are preheated in cooperation with heat circulation, the temperature of finished products is reduced, and the heat efficiency is improved. According to the technical scheme, the condition that the reaction is influenced by equipment cooling caused by insufficient contact area and too low raw material temperature during production can be avoided, and the condensation speed of boron trichloride is accelerated through finished product heat dissipation cooling and condensation cooling, so that rapid exhaust is realized, and the speed of a finished product is ensured.

The utility model relates to the technical field of chemical engineering, in particular to a fixed bed liquid phase hydrogenation device which comprises a workbench, the upper end of the workbench is fixedly connected with a reaction device, a hydrogenation assembly is arranged in the reaction device, and the hydrogenation assembly penetrates out of the right side wall surface of the reaction device. When the reactor is used, hydrogen introduced into the gas inlet pipeline is fully homogenized into the reaction inner cavity through the gas holes, so that under the condition that the activity of a catalyst is ensured, the catalyst is fully reacted with a reaction solvent, the mass transfer effect is improved, the amplification effect in the production process is avoided, and the reaction efficiency is ensured.

The invention provides a light-activated chemiluminescence detection reagent composition, a kit, a detection method and a device. The light-excited chemiluminescence detection reagent composition comprises a first reagent and a second reagent, wherein the first reagent comprises a polyantibody A combined with a first marker; the second reagent comprises a light-emitting microsphere, the light-emitting microsphere can react with singlet oxygen to generate a detectable signal, and the surface of the light-emitting microsphere is coated with a monomer antibody B; and the polyantibody A and the monomer antibody B recognize different epitopes of a target molecule to be detected. When the detection reagent composition is used for target molecule detection, the background can be reduced while the positive signal value is not influenced, and the detection accuracy and sensitivity are ensured.

The invention belongs to the technical field of vertical barrier materials, and particularly relates to a vertical antifouling barrier material and a preparation method and application thereof.The antifouling barrier material is prepared from, by mass, 10-15 parts of bentonite, 3-15 parts of gelling agent and 70-87 parts of in-situ soil, the gelling agent is prepared from activated red mud, blast furnace slag powder, silica fume and water glass, and the water glass is prepared from sodium silicate, sodium silicate and sodium silicate. By replacing cement with the gelling agent component, the adsorption capacity, the pollutant intercepting capacity and the early strength of the vertical antifouling barrier material are improved, a low-permeability antifouling barrier can be formed in a high-concentration organic pollution solution and a heavy metal pollution solution, pollutants are prevented from horizontally migrating along with underground water, and the pollution resistance of the vertical antifouling barrier material is improved. And thus, effective isolation management and control of the polluted site are realized. The vertical antifouling barrier material provided by the invention can be applied to a polluted site in which the underground water heavy metal concentration is greater than or equal to 20mg / L or the organic matter concentration is greater than or equal to 400mu g / L.

This invention belongs to the field of organic chemistry, specifically relating to a method for preparing and applying a class of bis(trichloromethyl)S-triazine compounds. The method provides that benzonitrile compounds are used as starting materials, undergoing a cyclotrimerization reaction with trichloroacetonitrile, followed by a Knevengel reaction with benzaldehyde compounds to obtain bis(trichloromethyl)S-triazine compounds. The preparation method of this invention is simple, with easily controllable temperature and few impurities throughout the process; it significantly reduces costs and greatly improves purity and yield, achieving purities >99% and yields >70%; the products have good solubility; more importantly, almost all compounds exhibit more active inhibitory effects on HepG2 human liver cancer cells than the control cisplatin; making these compounds not only suitable as photochemical agents in the chemical industry but also beneficial for screening tumor therapeutic drugs.

The utility model relates to sewage treatment technical field, concretely is a sewage treatment integrated intelligent circulation system, including ground, the ground top is fixed with anaerobic tank, the anaerobic tank right -hand member is fixed with oxygen -deficient pool, the oxygen -deficient pool right -hand member is equipped with the aerobic tank, the aerobic tank right -hand member is equipped with the electric catalysis advanced oxidation ware, the anaerobic tank the oxygen -deficient pool the aerobic tank with the electric catalysis advanced oxidation ware right -hand member all are equipped with the filter box, each the filter box right -hand member is fixed with the delivery pipe, the anaerobic tank the oxygen -deficient pool with the aerobic tank top all are equipped with the sealing plate, the anaerobic tank the oxygen -deficient pool with the aerobic tank inside all are equipped with stirring and sensor network, the utility model discloses through the synergies of multistage biochemical treatment and electric catalysis advanced oxidation, has improved the removal efficiency of each kind of pollutant in hospital sewage greatly, and the system avoids the disinfection by -product produced by chemical disinfection method, reduces the secondary pollution to the environment.

The utility model relates to the technical field of fuel cells, and discloses a fuel cell gas treatment system which comprises an air compressor, a humidifier, an electric pile, a steam-water separation assembly and an expansion machine, the humidifier is provided with a humidifying channel and a moisturizing channel, the electric pile is provided with an air inlet and an air outlet, and the steam-water separation assembly comprises a main body and a first steam-water separator. The main body is provided with a first cavity, a first water storage part is arranged at the lower part of the first cavity, and the first steam-water separator is arranged in the first cavity and is positioned above the first water storage part; the air compressor, the humidifying channel and the air inlet are sequentially communicated, the air outlet is sequentially communicated with the humidifying channel, the first steam-water separator and the expansion machine, the first water storage part is communicated with the air inlet end of the humidifying channel, and a first electromagnetic valve is arranged on a pipeline through which the first water storage part is communicated with the air inlet end of the humidifying channel. The fuel cell gas treatment system provided by the utility model can be used for recycling water vapor generated after a reaction and can be used for treating excessive liquid water after the reaction in time.

The invention relates to the technical field of reaction kettles, in particular to an intelligent chemical reaction kettle which comprises a kettle body, a motor, a rotating shaft and an anchor blade, a transmission assembly and a cleaning assembly are arranged on the anchor blade, pushing teeth and a plurality of transmission racks are arranged on the transmission assembly, a plurality of cleaning plates are arranged on the cleaning assembly, and the motor drives the rotating shaft to rotate. The transmission assembly drives the transmission rack to slide in the anchor blade through the rotating shaft and the pushing teeth, and the cleaning assembly drives the cleaning plate to clean materials adhered to the surface of the anchor blade through the transmission rack, so that the situation that the materials are easy to adhere when the anchor stirrer is used in a high-viscosity material environment is avoided; the problem that the reaction effect and the product quality are influenced by non-uniform mixing caused by reduction of the effective stirring area of the stirrer due to the adhered materials is solved, and the reaction efficiency and the stability of the intelligent chemical reaction kettle are ensured.

The invention discloses a synthesis device for prothioconazole chlorination reaction, and relates to the technical field of synthesis devices.The synthesis device is characterized in that a shell is arranged on a device body, a device base is arranged at the bottom of the shell and used for controlling the stability of the whole device, an outer cylinder is coaxially arranged in the shell, and a driving part is coaxially arranged at the top of the outer cylinder; a feeding pipe is arranged on one side of the driving part and penetrates through the outer cylinder, and a discharging pipe is arranged at the bottom of the outer cylinder; a driving part is arranged in the outer cylinder, a storage cylinder is coaxially arranged in the outer cylinder, the storage cylinder is fixed at the bottom of the outer cylinder through a supporting frame at the bottom, a fixing frame is arranged in the storage cylinder, the output end of the driving part is connected with a driving shaft, and the end, away from the driving part, of the driving shaft is connected with a driving mechanism. The invention solves the problem of low overall reaction efficiency caused by different reaction rates of reactants at different temperatures due to the phenomenon that the reactants are accumulated and the internal temperatures of the reactants are not uniform in the prior art.

This invention discloses a direct reduction ironmaking method, relating to the field of iron and steel metallurgy. The direct reduction ironmaking method includes the following steps: splitting a first gas discharged from the preheating reduction zone into a first portion and a second portion; removing the inert gas from the first portion and mixing it with the second portion to form a second gas; heating the second gas to a first preset temperature and then inputting it into the high-temperature reduction zone, so that the second gas reacts with the iron-containing raw material and flows upward to the preheating reduction zone. This application can solve the problems of inert gas enrichment, unstable atmosphere, and low energy utilization in existing hydrogen-based reduction ironmaking processes.

The invention belongs to the technical field of organic chemistry, and particularly relates to a preparation method of bis (4-tert-butylphenyl) iodonium trifluoromethane sulfonate, which comprises the following steps: by taking tert-butylbenzene as an initial raw material, carrying out substitution reaction with potassium iodate and concentrated sulfuric acid, and then carrying out ion exchange with potassium trifluoromethane sulfonate, thereby obtaining the bis (4-tert-butylphenyl) iodonium trifluoromethane sulfonate. The bis (4-tert-butylphenyl) iodonium trifluoromethane sulfonate is obtained; the process steps are simple, and the prepared bis (4-tert-butylphenyl) iodonium trifluoromethane sulfonate product is high in purity, high in yield and suitable for industrial application.

The utility model discloses phosphorus oxychloride oxygen introduction reaction equipment which comprises a reaction kettle and supporting legs, a driving shaft is installed in the middle of the interior of the reaction kettle, and a limiting disc is installed at the top of the periphery of the driving shaft. According to the oxygen supply device, the oxygen supply pipes and the oxygen supply cavities are adopted, in the actual use process, oxygen can be conveyed into the reaction kettle through the oxygen supply pipes, the oxygen supply pipes are independently arranged in multiple groups, and the oxygen supply pipes used for guiding oxygen into the oxygen supply cavities at different positions are pipelines which are independently arranged and are different in length; in this way, the balance of oxygen conveying can be effectively guaranteed, the situation that due to single-pipe conveying, the oxygen amount at the bottom is lower than the oxygen amount at the top, the reaction effects of stock solutions at different depths are inconsistent, and the overall production efficiency is affected can be effectively avoided, and therefore the overall reaction efficiency and reaction quality can be effectively guaranteed; and the oxygen supply quantity is balanced, and the reaction effect is good.

The invention relates to the field of titanium sponge production equipment, in particular to a method and a structure for installing concentric rings in a titanium sponge reduction distillation reactor. B, secondly, a reactor barrel is arranged on a mounting support, the reactor barrel is in a suspended state under the support of the mounting support, the axis of the reactor barrel is arranged in the vertical direction, and the state of the barrel axis of the reactor barrel in the vertical direction is kept; c, the new concentric ring partition plate is hoisted into the reactor barrel from the opening in the top of the reactor barrel and placed downwards to the bottom of the reactor barrel, and the axis of the concentric ring partition plate is arranged in the vertical direction; adjusting the position of the concentric ring partition plate at the bottom of the reactor barrel to enable the axis of the concentric ring partition plate to be coaxial with the axis of the barrel; and d, fixing the new concentric ring partition plate and the bottom of the reactor barrel into an integral structure. The mounting method is particularly suitable for the mounting process of the concentric ring in the titanium sponge reduction distillation reactor.

This application belongs to the field of chemical equipment technology and discloses a double-lined reactor, including a reactor body and a venturi tube. The reactor body includes an outer steel component, a PTFE layer, and a perforated plate. The outer steel component, PTFE layer, and perforated plate are arranged in parallel. The perforated plate is fixedly connected to the inner side of the outer steel component, and the PTFE layer is fixedly connected to the side of the perforated plate away from the outer steel component. A sandwich space is formed between the PTFE layer and the outer steel component, and the PTFE layer is the reaction space for the materials. The feed section and discharge section of the venturi tube are respectively connected to the reaction space, and the throat of the venturi tube is connected to the sandwich space. The reactor using a double-lined structure instead of a Hastelloy reactor and introducing a venturi tube can, on the one hand, utilize the jetting effect of the venturi tube to ensure thorough mixing of materials, which is beneficial to improving the reaction effect; on the other hand, the negative pressure generated by the venturi tube during operation can extract the gas that has permeated into the sandwich space, reducing the possibility of bulging inside the reactor and increasing the service life of the reactor, without the need for an additional vacuum system.

The invention discloses a circular polarization luminescent material and a preparation method thereof, and a circular polarization organic light-emitting diode, the circular polarization luminescent material comprises a compound represented by a general formula (I): # imgabs0 #, in which R1 is # imgabs1 # or # imgabs2 #; x is OTf, Cl, Br, I, TFSI or PF6; r2 is any one of methyl, phenyl, benzyl, methylnaphthalene, methylanthracene, methylbenzopyrene, methylpyrene, methylphenanthrene and methylperylene. According to the circularly polarized light-emitting material, the circularly polarized light-emitting performance of the material is jointly improved through the synergistic effect among the chiral binaphthalene structure, the pyridine ring, the substituent group of the pyridine ring and the formed supramolecular structure or fractal structure.

The invention provides a production device, a production method and application of acetoxypropionaldehyde. The method comprises the following steps: under a hydroformylation condition, feeding vinyl acetate, synthesis gas and a hydroformylation catalyst into a first reaction unit for a contact reaction, cooling part of a first liquid phase product and then circulating, and sequentially separating unreacted synthesis gas, the catalyst, a solvent, a crude product, a light component and an unreacted material flow from the other part of the first liquid phase product through separation units; unreacted material flow and another strand of synthesis gas are fed into a second reaction unit for continuous contact reaction, a liquid-phase product is returned to the separation unit for combined treatment, and the catalyst and the solvent are respectively returned to the reaction units. According to the technical scheme provided by the invention, the material flow direction is reasonably arranged, the energy consumption is saved, the reaction efficiency of the reaction units is effectively improved, the device scale of the reaction units is reduced, side reactions are reduced, and the catalyst proportion of each reaction unit can be flexibly regulated.