316 results about "Solid reaction" patented technology

The invention relates to the field of fluidization reaction, in particular to a staying-time-controllable multi-stage vibration fluidization gas-solid continuous reaction device which comprises a rack, a reaction bin and a vibration device, the reaction bin is divided into at least two bin chambers and a discharging chamber through partition plates, the adjacent bin chambers are communicated through first communication openings, and the vibration device is arranged in the rack; the discharging chamber is communicated with the adjacent bin chamber through a second communication port; each chamber is provided with an air outlet, the lower end of each chamber is provided with an air inlet, each air outlet is provided with a filtering mechanism, and the air outlet of each chamber is communicated with the air inlet of the adjacent chamber through a connecting pipe except the chamber farthest from the discharging chamber; a breathable supporting plate is arranged at the lower end of the reaction bin. According to the invention, the contact time of the gas-solid reaction materials can be effectively regulated and controlled according to the reaction process conditions, the gas-solid reaction is thorough, the powder applicability is high, and the technical problems that the existing gas-solid slow reaction system is difficult to realize continuous reaction and low in reaction efficiency are solved.

The invention relates to a silicon imine production method adopting a continuous method. The method comprises the following steps: by taking liquid ammonia as a liquid medium, turbulence the liquid ammonia from top to bottom along the inner wall of the falling-film tubular reactor; spraying silicon tetrachloride in a mist form to form gaseous silicon tetrachloride; carrying out gas-liquid reaction on the gaseous silicon tetrachloride and liquid ammonia to obtain a silicon imine solid reaction product; in the aging device, gaseous silicon tetrachloride which is not completely reacted continuously reacts with liquid ammonia; the filter is used for filtering a silicon imine solid reaction product; the separator is used for separating ammonia gas and ammonium chloride. In this way, waste discharge is reduced through continuous production. Then, in combination with a deep learning algorithm, an implicit change mode of real-time pressure data in the reactor can be mined, consumption of reactants and accumulation of products in the reactor can be learned and understood from the implicit change mode, and intelligent spraying of gaseous silicon tetrachloride is realized based on the condition.

The present invention relates to a method for purification and separation of solid-state carbon-containing material generated from electrolysis of a molten lithium carbonate elec- trolyte and recovery of lithium carbonate The method comprises obtaining a solid reaction product formed from electrolysis of a molten lithium carbonate salt electrolyte. The solid reaction product is mixed with an aqueous source and carbon dioxide is introduced at a predetermined first pressure to produce carbon dioxide treated aqueous reaction product mixture. The temperature and pressure of the carbon dioxide treated aqueous reaction product mixture is controlled to produce solid-state carbon material and an aqueous solu- tion rich in lithium salts. The solid-state carbon is separated from the aqueous solution rich in lithium salts. Carbon dioxide stream, precipitated lithium carbonate and an aqueous solution poor in lithium salts are generated by controlling the pressure and temperature of the aqueous solution rich in lithium salts. The precipitated lithium carbonate is separated from the aqueous solution poor in lithium salts. The method further comprises one or more of: recycling the recovered precipitated lithium carbonate as a feed source for the molten lithium carbonate salt electrolyte; and / or recycling the recovered aqueous solution poor in lithium salts as at least a portion of the aqueous source.

The invention discloses a method for preparing coal and calcined kaolin through coal gangue grinding and grading-acid leaching-suspension calcination, and belongs to the technical field of coal gangue beneficiation. According to the method disclosed by the invention, the three stages of ore grinding flotation, acid leaching purification and fine grinding calcination complement each other, so that fine-grained calcined kaolin of which the content of-7 microns is greater than or equal to 90% and the whiteness is greater than or equal to 90% and ultrafine-grained calcined kaolin of which the content of-2 microns is greater than or equal to 90% and the whiteness is greater than or equal to 90% are prepared. According to the method, effective separation of coarse coal, leaching and purification of impurity iron elements and calcination and purification of fine-grained kaolin are realized through step grinding and step separation; the gas-solid reaction degree is improved and sintering is avoided by utilizing the dispersion and suspension characteristics of fine-particle materials; the dehydroxylation and decarburization reactions can be carried out completely by calcining fine materials and precisely controlling the temperature, so that the whiteness of the calcined kaolin product is remarkably improved. According to the method, the adaptability to coal gangue raw ore is improved, and meanwhile, a new thought is provided for efficiently preparing a calcined kaolin product from the coal gangue and cooperatively recycling coal resources.

The invention discloses a novel synthesis method of 4-formyl benzoic acid succinimido ester, which comprises the following steps: by taking p-formylbenzoic acid, NHS and EDAC as raw materials and dichloromethane as a solvent, adding a catalyst for reaction, and removing the solvent in vacuum to obtain a solid reaction product; and then the solid product is further subjected to the steps of dissolving, drying, vacuum solvent removal and the like to obtain a final product. By optimizing the synthesis conditions of the 4-formyl succinimidyl benzoate, the subsequent separation process is simplified, and the operation is simpler and more convenient; by adopting the catalyst, the yield is greatly improved and can reach 96% or above at most. The synthesis method disclosed by the invention is high in yield, mild in reaction condition and simple and convenient to operate, and can meet the requirements of large-scale industrial production.

The invention discloses a magnesium diboride superconducting wire and a preparation method thereof, and belongs to the technical field of superconducting wire processing. The preparation method comprises the following steps: preparing an MgB2 superconducting wire by adopting an in-situ powder sleeve method and a central Mg diffusion method, loading an Mg rod into a pre-pressed B tube to obtain an Mg / B composite rod, loading the Mg / B composite rod into an Nb / Cu composite tube, and loading MgB2 superconducting powder into a gap area between the Mg / B composite rod and the Nb / Cu composite tube to prepare the magnesium diboride superconducting wire. In the heat treatment process, the Mg element in the center area diffuses towards the surrounding B element and forms MgB2, meanwhile, the MgB2 powder on the edge serves as a template to induce and promote the solid-phase reaction of the Mg element and the B element, an MgB2 superconducting phase with the higher purity is generated, and therefore the wire rod obtains the higher current-carrying performance. The invention provides the MgB2 wire rod with better current-carrying performance under a low-field application condition.

The invention belongs to the field of organic matter synthesis, and particularly discloses a preparation method of tert-dodecyl mercaptan, which is characterized in that hydrogen sulfide and dodecene are used as raw materials, and an addition reaction is performed under the catalytic action of a solid acid catalyst by adopting a liquid-solid heterogeneous process and a fixed bed reactor to obtain the tert-dodecyl mercaptan. The continuous liquid-solid reaction is realized, the diffusion time of hydrogen sulfide to a liquid phase main body is shortened, the heat capacity and the heat transfer coefficient of a reaction system are improved, the catalytic efficiency of the catalyst and the temperature controllability of the reaction process are improved, and the reactor design is simplified. Under proper operation conditions, the conversion per pass of dodecene is greater than or equal to 85%, the selectivity is close to 100%, the technological process is simple, few three wastes are generated, treatment is easy, and the method is suitable for industrial production.

The invention discloses a preparation method of trifluoro vanadium oxide, and belongs to the technical field of fine chemical engineering. The method comprises the following steps: uniformly mixing vanadium pentoxide powder with a gamma-Cr2O3 catalyst, putting the mixture into a reactor, maintaining the temperature in the reactor within the range of 120-150 DEG C, introducing fluorine-containing gas into the reactor for gas-solid reaction, performing magnetic separation on solids obtained by the gas-solid reaction to obtain a trifluorovanadium oxide product, and condensing tail gas obtained by the gas-solid reaction to recover a vanadium pentafluoride product; the method is simple in reaction process, safe in technological operation, high in product purity and high in conversion rate.

The invention relates to a preparation method of phosphorus pentafluoride, which comprises the following steps: mixing a fluorocarbon compound with a phosphorus oxide compound and an oxidizing agent, reacting in a dry closed environment at high temperature and high pressure, collecting gas, and purifying to obtain the phosphorus pentafluoride. The invention also discloses a preparation method of lithium hexafluorophosphate, which comprises the following step: carrying out gas-solid reaction on the obtained phosphorus pentafluoride and lithium fluoride in a fluidized bed to prepare the lithium hexafluorophosphate. The method solves the problems of low purity of lithium hexafluorophosphate, difficulty in treatment of byproducts, low production efficiency and the like in the prior art.

The utility model relates to the technical field of gas-solid fluidized reactors, in particular to a C-type particle fluidized bed reactor and a C-type particle fluidized bed reaction system. The C-type particle fluidized bed reactor comprises a fluidized bed reactor body, a heating system and a pressure adjusting system, the heating system is arranged outside the fluidized bed reactor body, the pressure adjusting system comprises a pressure sensor, a vacuum pump and a pressure adjusting valve, and the pressure sensor is arranged at the top of the fluidized bed reactor body. And one end of the pressure regulating valve is connected with the air outlet of the fluidized bed reactor main body while the other end is connected with the vacuum pump. The C-type particle fluidized bed reactor can meet accurate pressure and temperature conditions and gas-solid fluidization reaction quality required by gas-solid reaction, realizes forced stirring of C-type particles in the reaction process and uniform gas-solid fluidization, and is simple in equipment structure, high in operation controllability and easy to carry out stable and fine chemical operation.

The invention discloses a negative pressure atomization and supergravity enhanced liquid-solid reaction magnesium metallurgy device and method.The device comprises a furnace body, a liquid-solid mixing reaction material tank, a first-stage material gathering taper pipe and a second-stage material gathering taper pipe are fixedly arranged in the furnace body from top to bottom, and a solid raw material distributing plate is fixedly arranged in the liquid-solid mixing reaction material tank; powder feeding threads are formed in the solid raw material feeding pipe, the solid raw material feeding pipe is rotationally connected with the furnace body and connected with a transmission assembly, the solid raw material feeding pipe is rotationally connected with a neck of a hopper, and the neck of the hopper is connected with a solid raw material feeding vacuum valve; a liquid reducing agent sprayer fixedly connected with a liquid reducing agent feeding pipe is arranged in the liquid-solid mixing reaction material tank, and the liquid reducing agent feeding pipe is rotationally connected with the liquid-solid mixing reaction material tank and is connected with a liquid reducing agent feeding vacuum valve; the solid raw material feeding pipe and the liquid reducing agent feeding pipe are both provided with heating rings, the furnace body is connected with the magnesium steam collecting system connected with the vacuumizing system, the slag outlet capable of being sealed is formed in the bottom of the furnace body, energy consumption of magnesium metallurgy is reduced, and the reaction efficiency is improved.

The invention relates to a method and a device for continuously producing sulfuryl fluoride. The method is a gas-solid reaction among reaction raw materials, does not need to use a solvent and a catalyst, is high in production efficiency, short in production period, high in sulfuryl fluoride yield and low in production cost, and can realize continuous production.

The invention relates to the technical field of new materials, in particular to a polymer, an ion exchange membrane and a preparation method and application thereof. The polymer is a compound shown in a general formula I, r is; n is the content of non-quaternized piperidine in the main chain, and n is equal to 0-1; z = n / 2. The end-capping reagent is introduced by adopting a gas-solid reaction method, that is, the membrane reacts with the vaporized end-capping reagent. The method has a positioning effect on a polymer molecular chain, so that a static polymer chain and a dynamic end-capping reagent are in a positioning and fixed-point reaction when the end-capping reaction occurs, and self-crosslinking caused by high movement of the polymer chain is prevented. In addition, the space structure of a triazine network cross-linking site is regulated and controlled by optimizing an end-capping reagent, and the purpose of improving the stability and OH <-> conductivity of the thin film at the same time is achieved.

The application relates to a gas-solid reaction rotary furnace. The gas-solid reaction rotary furnace comprises a support frame, a base, a frame rotatably connected to the base, a first driver for driving the frame to rotate, a rotary furnace pipe arranged in the frame, the rotary furnace pipe comprising a powder inlet and outlet end and a gas inlet and outlet end, and a gas assembly arranged at the gas inlet and outlet end of the rotary furnace pipe, wherein when the gas assembly supplies gas to the rotary furnace pipe, the rotary furnace pipe can be moved to a state where the gas inlet and outlet end is higher than the powder inlet and outlet end. During operation of the gas-solid reaction rotary furnace, the rotary furnace pipe is kept in an inclined rotating state, the loading capacity of the rotary furnace pipe is increased, the production capacity of a single furnace is increased, the energy consumption of unit weight of material is reduced, and the processing time and cost are reduced.

The present invention relates to a method for preparing silicon monoxide nanopowder, and belongs to the technical field of non-metallic powder material preparation. The present invention uses SiO2 aerogel powder with a three-dimensional continuous structure surface as raw material, adsorbs hydrogen molecules on the surface of the powdered SiO2 aerogel, and axially feeds an argon-excited inductively coupled plasma torch. The hydrogen molecules are excited by the argon plasma torch to form a highly active hydrogen-rich plasma, which undergoes a reduction reaction with the SiO2 aerogel powder having the characteristics of high specific surface area and high porosity. The generated silicon monoxide vapor is quenched by argon downstream of the reaction device to obtain highly dispersible silicon monoxide nanopowder. This method overcomes the defects of the traditional solid-solid reaction method for preparing silicon monoxide, which has a slow reaction rate and low raw material conversion rate, and at the same time solves the safety problems existing in the traditional method of producing silicon monoxide by hydrogen reduction, thereby greatly improving production efficiency and safety.

The invention relates to an efficient gas-solid reaction process and an integrated industrial system, and belongs to the technical field of gas-solid reaction in chemical production. The process flow comprises the following steps: crushing and drying coke by a pulverizing unit, preheating the coke and sulfur steam to be greater than or equal to 550 DEG C, and jointly entering a gas-solid reaction unit; and the product enters a gas-solid separation unit, is subjected to two-stage gas-solid separation at a high temperature of 450-680 DEG C and a low temperature of less than or equal to 200 DEG C, and then is The integrated industrial system based on the efficient gas-solid reaction process is applied to carbon disulfide production through a coke method, the problems of external heat supply and byproduct generation control in the reaction process of coke and sulfur are solved, and the system is simple in process chain, easy and convenient to operate, compact in structure and suitable for continuous and closed carbon disulfide production requirements through the coke method.

The invention discloses a lithium / carbon fluoride battery electrolyte and application thereof. The lithium / carbon fluoride battery electrolyte comprises a lithium salt, an ester solvent and a ferrocene derivative. Ferrocene molecules are modified, and electron donating groups including amino, alkoxy, ester group and alkyl are introduced, so that the redox potential of ferrocene is reduced. The reduction potential is close to the potential of a carbon fluoride discharge platform, the purpose of accelerating carbon fluoride conversion is achieved, the solid-solid reaction of the battery is converted into the liquid-solid reaction, so that the polarization phenomenon is reduced, and heat generated when the carbon fluoride battery discharges is remarkably reduced. And meanwhile, the discharge capacity and the discharge rate capability of the battery are improved. Therefore, the battery has the characteristics of high energy density and high power, and is better in safety performance.

The invention discloses a material reactor, a material reaction system, a method for decomposing a self-oxidation reduction precursor and application. The material reactor comprises a dividing piece and a reaction cylinder, adjusting the rotation of the reaction cylinder; the reaction cylinder is provided with a reaction cavity along the length direction; the dividing piece is placed in the reaction cavity; the dividing piece is provided with at least three dividing plates; one ends of the plurality of sub-plates are connected and are distributed in a surrounding manner by taking the connected position as the center; the other ends of the partial split plates are in contact with the inner wall of the reaction cavity; the material reaction system comprises a rack, a heating device, a feeding device, a discharging device and a material reaction system, according to the scheme, multiple synergistic effects of preventing adhesion, improving heat transfer and accelerating gas-solid reaction can be realized, and the problem of waste caused by the fact that gas decomposed by raw materials does not participate in synthesis and is directly discharged in a production process is solved.

The invention relates to the technical field of rare earth secondary resource recovery, in particular to a neodymium iron boron waste recovery method. The method comprises the following steps: firstly, grinding the neodymium iron boron waste into fine granularity, and spraying into a specially designed flash reaction furnace body through a nozzle by virtue of carrier gas; meanwhile, sodium chlorate powder is continuously added into a pyrolysis area in the furnace, so that the sodium chlorate powder is instantly decomposed at a certain temperature, and high-activity gas is generated; the sprayed waste particles are in a suspended state in the reaction tower and are subjected to instantaneous gas-solid reaction with high-temperature active gas, rare earth elements are quickly oxidized and chlorinated and are converted into soluble rare earth oxychloride, and iron is mainly converted into FeO which is easy to magnetically separate. And carrying out cyclone dust collection and quenching on the reacted material to obtain a roasted product, recovering rare earth through water leaching, and recovering iron through magnetic separation. According to the invention, selective oxidation is completed at low temperature in a short time (second level), and the method has the outstanding advantages of high efficiency, low energy consumption and high recovery rate.

The present application relates to a method for reducing the content of sulfur in aluminum fluoride, which comprises the following steps: uniformly mixing crude aluminum fluoride powder containing sulfate impurities with ammonium hydrogen fluoride powder to obtain a mixture; placing the mixture in a reactor and performing programmed temperature calcination under a protective atmosphere; discharging the sulfur and fluorine-containing volatile gas generated by calcination after treatment by an absorption system; cooling the calcined material to room temperature; washing the cooled material with water or blowing inert gas to remove residual ammonium salt or dust, and then drying to obtain a low-sulfur aluminum fluoride product. The in-situ HF generated by the decomposition of NH4HF2 is used for gas-solid reaction, which can effectively attack and convert stable sulfate impurities existing in various forms, has high desulfurization efficiency and is deep and thorough; the reaction conditions are mild, the main phase of the product is stable, the process flow is simple, and the energy consumption is low.

The present invention discloses a gas purifier, which belongs to the technical field of gas purification equipment, and includes a first gas purification device and a second gas purification device arranged adjacent to each other, wherein the first gas purification device includes a purification tank for containing liquid alloy, a telescopic device arranged at the bottom of the purification tank, a pressing assembly installed at the output end of the telescopic device, an extrusion molding assembly and a material removal assembly installed at the top of the purification tank, a gas inlet is provided at the bottom of the purification tank, a gas outlet is provided at the top of the purification tank, the pressing assembly is slidably matched with the inner wall of the purification tank, the telescopic device drives the pressing assembly to move along the vertical direction, the pressing assembly presses the solid reaction material to the extrusion molding assembly, and then removes it through the material removal assembly, the pressing assembly pushes the liquid alloy when rising, and the liquid alloy enters the second gas purification device through the filter hole. The device of the present invention can process the generated solid reaction material in time.

The utility model discloses a gas-solid reaction device, relates to the technical field of polycrystalline silicon production, and mainly aims to relieve the problem of blockage of solid raw materials of a gas-solid reactor. According to the main technical scheme, the gas-solid reaction device comprises a reaction chamber, a flow guide part and a cyclone separator, the lower end of the reaction chamber is connected to a gas feeding pipe, and the side wall of the reaction chamber is connected to a solid feeding pipe; the flow guide part comprises a plurality of flow guide beams and a plurality of layers of grating flow guide plates, the plurality of layers of grating flow guide plates are arranged in the reaction chamber along the vertical direction, and the plurality of flow guide beams are vertically arranged between the grating flow guide plates and the solid feeding pipe; the cyclone separator is arranged above the flow guide bundle, and an outlet pipe at the upper end of the cyclone separator penetrates through the top wall of the reaction chamber.

The application discloses a flue gas deacidification method based on superfine liquid calcium and related equipment thereof, and the method comprises the following steps: obtaining a superfine liquid calcium preparation solution, pressurizing the superfine liquid calcium preparation solution through a slurry pump to obtain pressurized slurry, and sending the pressurized slurry to a rotary atomizer through a conveying pipeline; the slurry is torn into fine mist droplets by a high-speed rotating atomizing disc and sprayed into a flue gas field of a deacidification tower; the mist droplets are in turbulent contact with acidic flue gas to generate a product containing dry solid reaction products and calcium-based particles that have not completely reacted; the product enters a bag-type dust collector, a filter cake layer is formed on the outer surface of a filter bag, and when the acidic flue gas flows through the filter cake layer, the calcium-based particles complete secondary deacidification to obtain purified flue gas. Therefore, the superfine liquid calcium is used to replace lime powder, the reaction contact area is increased, and the utilization rate of the medicament is improved. The primary neutralization and the secondary deacidification are combined to guarantee the deacidification effect, reduce the consumption of the medicament, reduce the fly ash hazardous waste, alleviate the problems of scaling, equipment wear and blockage, reduce the operation and maintenance cost, and guarantee long-term and reliable operation of the flue gas purification system.

The invention discloses flaky alumina and a preparation method thereof, the flaky alumina is in a square sheet shape and has a single crystal structure, the grain size of the flaky alumina is 300-1300 nm, and the grain thickness is less than or equal to 150 nm. The preparation method comprises the following steps: placing roasted SB powder and a quaternary ammonium base solution in a pressure container in a solid-liquid two-phase separation manner, carrying out a gas-solid reaction under certain heat treatment conditions, and drying and roasting the reacted solid powder to obtain the flaky aluminum oxide. The flaky aluminum oxide is regular in structure and flat and smooth in surface, can be used as a polishing material, a coating, a catalysis material and an adsorption material, and is simple in preparation process, easy in raw material obtaining and easy in industrial production.

The application discloses a kind of based on heat trigger solid-liquid reaction's goaf spontaneous combustion initiative inerting device and method, belong to coal mine fire prevention technical field, first based on experimental data, goaf beam tube monitoring and numerical simulation determine goaf high temperature prevention area, under the influence of setting safety margin and considering the maximum thickness of residual coal determine the starting temperature of adaptive inerting device, then according to goaf residual coal thickness, porosity, oxygen concentration field and high temperature prevention area area calculate out initiative inerting device size and reagent filling amount, finally combine the effective coverage area of single device and honeycomb grid generation algorithm, design initiative inerting device dynamic pre-buried point, and pre-bury initiative inerting device in coal mining face, when device reaches the high temperature protection area of goaf deep, temperature sensing guide column paraffin melt, aluminum sulfate solution in liquid reagent storage tank flows into solid reaction bin and sodium bicarbonate reaction along guide column, generate a large amount of CO2 from exhaust port, rapidly reduce local oxygen concentration, eliminate goaf spontaneous combustion hazard.The core innovation of the application is to abandon the traditional passive prevention mode relying on gas diffusion, and instead adopt the initiative control mechanism of "temperature sensing trigger-in-situ reaction-directional release", so that CO2 directly acts on the high temperature area through the directional exhaust port, rapidly reduces the local oxygen concentration, cuts off the necessary condition of coal spontaneous combustion from the source, realizes the initiative identification and accurate inerting of goaf high temperature area, and ensures the safety production of coal mining face.

The invention provides a cylindrical fixed bed reactor of a thermochemical energy storage gas-solid reaction system and a testing method thereof, and belongs to the field of thermochemical energy storage. According to the invention, the heat storage and release cycle experiment can be carried out for different thermochemical gas-solid reaction systems, especially the heat storage and release process of a hydroxide system and a hydrated salt system. Openings at two ends of a reaction cavity are respectively connected with a top seal head and a bottom seal head, the top seal head is provided with an air inlet, the bottom seal head is provided with an air outlet, and stainless steel sintered plates are respectively arranged between the air inlet and the reaction cavity and between the air outlet and the reaction cavity; the heat exchange cavity is embedded in the periphery of the reaction cavity, a cooling water coil and a heating pipe are arranged in the heat exchange cavity, an inlet and an outlet of the cooling water coil are connected with a cooling water coil inlet and a cooling water coil outlet in the heat exchange cavity respectively, and positive and negative binding posts of the heating pipe extend out of the heat exchange cavity. According to the invention, heat storage and release performance research under various working conditions of variable temperature, variable pressure and variable flow can be carried out.

A process for converting plastic materials into pyrolytic oils, wherein: plastic materials are continuously fed into a preheating reactor to be mixed and preheated at a preheating temperature to obtain a pasty mixture; the pasty mixture is continuously transferred into a pyrolysis reactor to be heated at a pyrolysis temperature, under an anaerobic or inert atmosphere, to be converted into synthesis gases and a solid reaction product; the synthesis gases, containing condensable gases and uncondensable gases, are recovered on a first outlet located above the permeable bed, and the solid reaction product is recovered on a second outlet located below the permeable bed; the condensable gases of the synthesis gases are condensed into pyrolytic oils which are recovered.

The utility model discloses a circulating device for volatile liquid and non-volatile liquid or soluble solid solution, and belongs to the technical field of chemical reaction equipment. The device comprises a gas collection container, a liquid-solid reaction operation container and a magnetic stirrer, a pressure release valve is arranged at the top of a container body, and a scale feeding pipe extending into the bottom of the container is arranged; the liquid-solid reaction operation container is a round flask, the lower part of the flask body is connected with a sample receiving pipeline, a reaction monitoring sample receiving switch is arranged on the pipeline, and the bottom of the flask body is also connected with a graduated shunt tube and is provided with a valve; the liquid-solid reaction operation container is placed on the magnetic stirrer, and the gas collection container and the liquid-solid reaction operation container are connected through a diaphragm pump pipeline and a reflux pipeline, so that gas of volatile liquid is pumped into the liquid-solid reaction bottle and enters the gas collection container again through the reflux pipeline under the action of pressure, and recycling of the liquid is realized. The continuous reaction is ensured. The overall design of the equipment is simple and easy to operate, and the equipment has good corrosion resistance and safety.

Reactor configurations may include one or more staged inlets and / or one or more staged outlets for gaseous and solid feedstocks. In one embodiment of the present disclosure, a reactor design for gas-solid reaction with one or more additional outlet for gas and / or solid phase is provided. In yet another embodiment, the design for a gas-solid reactor with one side inlet and two outlets for gas phase is described. In one embodiment, a reactor design with pairs of inlet and outlet for both gas and solid phase is provided. In another embodiment, a reactor design with one or more side inlets but only one outlet for gas phase is provided. In yet another embodiment, a reactor design with two inlets at the top / bottom of reactor and two side outlets for gaseous phase is described. In yet another embodiment, a reactor design with one or more side inlets and outlets for both gas and solid phases is provided.

The invention relates to the technical field of phosphorus chemical industry production, and particularly discloses a production process and equipment for producing phosphorus pentafluoride, the production process comprises five steps of material preparation, feeding, fluorination reaction, condensation reflux and collection, in the material preparation stage, anhydrous hydrogen fluoride is liquefied, and the liquefaction low temperature of the anhydrous hydrogen fluoride is maintained in the whole reaction; the technical problems that in the prior art, a gas-solid reaction is used in a process for producing phosphorus pentafluoride from anhydrous hydrogen fluoride and phosphorus pentachloride, and a fluorination reaction is a strong exothermic reaction, so that temperature control is strict in the production process, and potential safety hazards exist are solved.