Continuous production device of antimony pentafluoride

Abstract

The utility model discloses a continuous production device of antimony pentafluoride, which relates to the technical field of chemical equipment, and is characterized in that an antimony bin is connected with an antimony temporary storage tank, the lower part of the antimony temporary storage tank is connected with the top of a reactor, a fluorine gas input port is arranged at the lower part of the reactor to input fluorine gas for the reactor, and a guide cylinder is arranged in the reactor; the antimony temporary storage tank is connected with a nitrogen tank, nitrogen is input and then air replacement is carried out, fluorine and antimony particles input into the reactor by the antimony temporary storage tank react in the reactor to generate a reaction product, the reaction product is output to the product storage tank through a reaction product outlet formed in the middle of the reactor, and the reaction product is cooled by the condenser and then stored in the product storage tank. The space of the reactor is divided into a reaction zone, a gas-liquid separation zone and a liquid circulation zone by the guide cylinder, the guide cylinder is provided with a heat exchanger for controlling the reaction progress of the reactor, antimony particles are added into the reactor after being replaced by nitrogen, and the reaction system is low in impurity content, few in side reaction and high in product purity.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical equipment, in particular to a continuous production device for antimony pentafluoride. Background Art

[0002] Antimony pentafluoride is a high-energy fluorinating agent, which is widely used in anti-cancer drug preparations in medical pharmaceuticals; antimony pentafluoride can form intercalation compounds with graphite and fluorinated graphite, and they have much higher conduction capabilities than graphite and fluorinated graphite, and may be used as superconducting materials; at the same time, antimony pentafluoride can also be used as a catalyst for various chemical reactions, such as esterification, condensation, preparation of amides and imides, etc.

[0003] At present, the methods for producing antimony pentafluoride are relatively complex, with disadvantages such as low product purity, difficult separation of impurities, low yield, low device production capacity, and discontinuous operation.

[0004] Therefore, there is an urgent need to provide a continuous production device for high-efficiency antimony pentafluoride to solve problems such as low yield of antimony pentafluoride, low product purity, low device production capacity, and discontinuous operation in the existing production technology. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a continuous production device for antimony pentafluoride, which has high purity of the produced antimony pentafluoride product, continuous operation of the equipment, large production capacity, high yield, etc.

[0006] To solve the above technical problems, an embodiment of the utility model provides a continuous production device for antimony pentafluoride, including a reactor, an antimony storage tank, an antimony bin, a compressor, a condenser, and a product storage tank. The antimony bin is connected to the antimony storage tank. A fluorine gas input port is provided at the lower part of the reactor for inputting fluorine gas into the reactor. The lower part of the antimony storage tank is connected to the top of the reactor. A draft tube is arranged inside the reactor. The antimony storage tank is connected to a nitrogen gas tank for inputting the nitrogen gas stored in the nitrogen gas tank for air displacement. The antimony particles input from the antimony storage tank into the reactor react with the fluorine gas in the reactor to generate reaction products, which are input into the product storage tank through a reaction product outlet provided in the middle of the reactor. The bottom liquid phase outlet of the condenser is connected to the product storage tank for cooling the reactants input into the product storage tank and storing them in the product storage tank. The draft tube divides the space of the reactor into a reaction zone, a gas-liquid separation zone, and a liquid circulation zone. The draft tube is provided with a heat exchanger to control the reaction progress of the reactor.

[0007] Wherein, the heat exchanger is a heat exchange coil, and the heat exchange coil is arranged on at least one of the inner side wall and the outer side wall of the draft tube, and the number of the heat exchange coils is at least one.

[0008] Wherein, the heat exchange coil is clamped or bolted to the draft tube.

[0009] Wherein, it further includes a heat exchange tank connected to the heat exchanger through a heat exchange tube. The heat exchange tank inputs a heat exchange medium to the heat exchanger through the heat exchange tube and recovers the heat exchange medium after heat exchange is completed.

[0010] Wherein, it further includes a condensation temperature sensor arranged on the condenser, a draft temperature sensor arranged on the draft tube, a heat exchange temperature sensor arranged on the heat exchange tank, and a controller connected to the condensation temperature sensor, the draft temperature sensor, and the heat exchange temperature sensor. The condensation temperature sensor is used to detect the condensation temperature value of the condensate in the condenser. The draft temperature sensor is used to detect the draft temperature value of the draft tube. The heat exchange temperature sensor is used to detect the output heat exchange temperature value of the heat exchange medium output by the heat exchange tank and the recovered heat exchange temperature value of the heat exchange medium recovered by the heat exchange tank. The controller is used to control the fluorine gas input flow at the fluorine gas input port, the number of antimony particles input by the antimony storage tank, the heat exchange medium input parameters of the heat exchange tank, and the condensate temperature of the condenser according to the condensation temperature value, the draft temperature value, the output heat exchange temperature value, the recovered heat exchange temperature value, and the reaction control instruction.

[0011] Wherein, it further includes a display connected to the controller, which is used to display the reaction control instruction, the fluorine gas input flow at the fluorine gas input port, the number of antimony particles input by the antimony storage tank, the heat exchange medium input parameters of the heat exchange tank, and the condensate temperature of the condenser.

[0012] Wherein, it further includes a gas phase outlet arranged at the top of the condenser, an exhaust gas pipeline and a recovered gas pipeline connected to the gas phase outlet. The exhaust gas pipeline is used to output the transported exhaust gas to the downstream exhaust gas system. The recovered gas pipeline is connected to the reactor through a compressor and is used to compress the transported recovered gas through the compressor and then transport it to the reactor.

[0013] Wherein, the ratio of the diameter of the draft tube to the diameter of the reactor is 0.5 - 0.7.

[0014] Wherein, it further includes a gas distributor arranged at the inner bottom of the reactor. The gas distributor is connected to the fluorine gas input port. A plurality of air outlet holes are uniformly arranged on the lower surface of the gas distributor. The diameter of the air outlet holes is 2 - 8 mm. The diameter of the gas distributor is larger than the diameter of the draft tube, and the reaction zone is located outside the draft tube. The diameter of the gas distributor is smaller than the diameter of the draft tube, and the reaction zone is located inside the draft tube.

[0015] The continuous production device of antimony pentafluoride provided by the embodiments of the present utility model has the following advantages compared with the prior art:

[0016] The continuous production device of antimony pentafluoride provided by the embodiments of the present utility model relates to the technical field of chemical equipment. The antimony storage bin is connected to the antimony temporary storage tank, the lower part of the antimony temporary storage tank is connected to the top of the reactor, a fluorine gas input port is arranged at the lower part of the reactor to input fluorine gas into the reactor, a draft tube is arranged in the reactor, the antimony temporary storage tank is connected to the nitrogen gas tank to input nitrogen gas for air displacement, fluorine gas reacts with the antimony particles input from the antimony temporary storage tank into the reactor to generate reaction products, which are output to the product storage tank through the reaction product outlet arranged in the middle of the reactor, and the reactants are cooled by the condenser and stored in the product storage tank. The draft tube divides the space of the reactor into a reaction zone, a gas-liquid separation zone and a liquid circulation zone. The draft tube is provided with a heat exchanger to control the reaction progress of the reactor. The antimony particles are added into the reactor after nitrogen displacement. There are few impurities and side reactions in the reaction system, and the product purity is high. Description of the Drawings

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1 It is a schematic structural diagram of an embodiment of the continuous production device of antimony pentafluoride provided by the present utility model;

[0019] Among them, 1 - reactor, 11 - gas distributor, 12 - heat exchange coil, 13 - draft tube, 2 - first control valve, 3 - antimony temporary storage tank, 4 - second control valve, 5 - antimony storage bin, 6 - compressor, 7 - third control valve, 8 - condenser, 9 - product storage tank. Detailed Embodiments

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts belong to the scope of protection of the present utility model.

[0021] Please refer to Figure 1 , Figure 1 It is a schematic structural diagram of an embodiment of the continuous production device of antimony pentafluoride provided by the present utility model.

[0022] In a specific embodiment, the continuous production device of antimony pentafluoride includes a reactor 1, an antimony storage tank, an antimony bin 5, a compressor 6, a condenser 8, and a product storage tank 9. The antimony bin 5 is connected to the antimony storage tank. A fluorine gas input port is provided at the lower part of the reactor 1 for inputting fluorine gas into the reactor 1. The lower part of the antimony storage tank is connected to the top of the reactor 1. A draft tube 13 is arranged inside the reactor 1. The antimony storage tank is connected to a nitrogen gas tank for inputting the nitrogen gas stored in the nitrogen gas tank for air displacement. The antimony particles input from the antimony storage tank into the reactor 1 react with the fluorine gas in the reactor 1 to generate reaction products, which are input into the product storage tank 9 through a reaction product outlet provided in the middle of the reactor 1. The bottom liquid phase outlet of the condenser 8 is connected to the product storage tank 9 for cooling the reactants input into the product storage tank 9 and storing them in the product storage tank 9. The draft tube 13 divides the space of the reactor 1 into a reaction zone, a gas-liquid separation zone, and a liquid circulation zone. The draft tube 13 is provided with a heat exchanger to control the reaction progress of the reactor 1.

[0023] The antimony bin 5 is connected to the antimony storage tank, the lower part of the antimony storage tank is connected to the top of the reactor 1, a fluorine gas input port is provided at the lower part of the reactor 1 for inputting fluorine gas into the reactor 1, a draft tube 13 is arranged inside the reactor 1, the antimony storage tank is connected to a nitrogen gas tank for inputting nitrogen gas for air displacement, the fluorine gas reacts with the antimony particles input from the antimony storage tank into the reactor 1 in the reactor 1 to generate reactants, which are output through a reaction product outlet provided in the middle of the reactor 1 and connected to the product storage tank 9, and the reactants are cooled by the condenser 8 and stored in the product storage tank 9. The draft tube 13 divides the space of the reactor 1 into a reaction zone, a gas-liquid separation zone, and a liquid circulation zone. The draft tube 13 is provided with a heat exchanger to control the reaction progress of the reactor 1. The antimony particles are added to the reactor 1 after nitrogen displacement. There are few impurities and side reactions in the reaction system, and the product purity is high.

[0024] In this application, the type of the heat exchanger is not limited. The heat exchanger is a heat exchange coil 12. The heat exchange coil 12 is arranged on at least one of the inner side wall and the outer side wall of the draft tube 13. The number of the heat exchange coils 12 is at least one.

[0025] In this application, the installation position of the heat exchange coil 12 is not limited. The heat exchange coil 12 is clamped or bolted to the draft tube 13.

[0026] In this application, the number, material, size, and installation method of the heat exchange coil 12 are not limited.

[0027] In this application, the temperature of the draft tube 13 in the reactor 1 is controlled through the heat exchange effect of the heat exchanger, and then the reaction temperature in the reaction zone therein is controlled. In this application, the type of the heat exchange medium of the heat exchanger and the input and output modes of the heat exchange medium are not limited.

[0028] In order to achieve precise control of the heat exchange medium and then achieve control of the temperature in the reaction zone and the reaction process of the reactor 1, in one embodiment, the continuous antimony pentafluoride production device further includes a heat exchange tank connected to the heat exchanger through a heat exchange pipe. The heat exchange tank inputs the heat exchange medium for the heat exchanger through the heat exchange pipe and recovers the heat exchange medium after heat exchange is completed.

[0029] In this application, the size of the heat exchange tank and the type and installation method of the heat exchange pipe are not limited.

[0030] In order to further achieve precise detection of the reaction process, in one embodiment, the continuous antimony pentafluoride production device further includes a condensation temperature sensor arranged on the condenser 8, a draft temperature sensor arranged on the draft tube 13, a heat exchange temperature sensor arranged on the heat exchange tank, and a controller connected to the condensation temperature sensor, the draft temperature sensor, and the heat exchange temperature sensor. The condensation temperature sensor is used to detect the condensation temperature value of the condensate of the condenser 8. The draft temperature sensor is used to detect the draft temperature value of the draft tube 13. The heat exchange temperature sensor is used to detect the output heat exchange temperature value of the heat exchange medium output by the heat exchange tank and the recovered heat exchange temperature value of the heat exchange medium recovered by the heat exchange tank. The controller is used to control the fluorine input flow rate at the fluorine gas input port, the number of antimony particles input from the antimony storage tank, the heat exchange medium input parameters of the heat exchange tank, and the condensate temperature of the condenser 8 according to the condensation temperature value, the draft temperature value, the output heat exchange temperature value, the recovered heat exchange temperature value, and the reaction control instruction.

[0031] Through the temperature sensor, the corresponding temperature value of the corresponding equipment can be detected, so as to accurately detect the reaction progress and accurately control the reaction accuracy accordingly, improving the precise management of the reaction device.

[0032] In this application, the type of the temperature sensor and the reaction installation method are not limited.

[0033] In order to further achieve real-time acquisition of data and reflect it to the manager, in one embodiment, the continuous production device of antimony pentafluoride further includes a display connected to the controller, which is used to display the reaction control instructions, the fluorine gas input flow rate of the fluorine gas input port, the number of antimony particles input from the antimony storage tank, the heat exchange medium input parameters of the heat exchange tank, and the condensate temperature of the condenser 8.

[0034] The real-time operation data of the device is realized through the display, improving the management efficiency.

[0035] This application does not limit the type and display method of the display. It can be displayed on-site, or can be remotely transmitted and displayed in real time through communication devices such as wifi modules, 4G modules, 5G modules, or other displays, etc.

[0036] Since in the equipment of this application, there will be unreacted fluorine gas in the reaction product after the reaction. If directly discharged, on the one hand, it will pollute the environment and contaminate the working workshop, affecting the health of the staff. On the other hand, it will also cause waste of raw materials.

[0037] In order to solve the above technical problems, in one embodiment, the continuous production device of antimony pentafluoride further includes a gas phase outlet provided at the top of the condenser 8, an exhaust gas pipeline and a recycled gas pipeline connected to the gas phase outlet. The exhaust gas pipeline is used to output the transported exhaust gas to the downstream exhaust gas system, and the recycled gas pipeline is connected to the reactor 1 through a compressor 6, and is used to compress the transported recycled gas through the compressor and then transport it to the reactor 1.

[0038] By connecting and setting an exhaust gas pipeline and a recycled gas pipeline at the gas phase outlet at the top of the condenser 8, it is possible to discharge the exhaust gas to a specified container for treatment, or to compress it through the compressor 6 and then recycle it again, improving the utilization efficiency of raw materials and the safety and reliability of production.

[0039] This application does not limit the connection method of the exhaust gas pipeline and the recycled gas pipeline, the type of the compressor 6, and the compression process.

[0040] The size of the deflector is not limited in this application. The ratio of the diameter of the draft tube 13 to the diameter of the reactor 1 is 0.5 - 0.7.

[0041] In order to further improve the reaction efficiency, in one embodiment, the continuous production device of antimony pentafluoride further includes a gas distributor 11 arranged at the bottom inside the reactor 1. The gas distributor 11 is connected to the fluorine gas inlet. A plurality of air holes are evenly arranged on the lower surface of the gas distributor 11. The diameter of the air holes is 2-8 mm. The diameter of the gas distributor 11 is larger than the diameter of the draft tube 13, and the reaction zone is located outside the draft tube 13. The diameter of the gas distributor 11 is smaller than the diameter of the draft tube 13, and the reaction zone is located inside the draft tube 13.

[0042] By arranging the gas distributor 11, connecting it to the fluorine gas inlet, and outputting fluorine gas through a plurality of air holes evenly arranged on the lower surface, the uniformity of fluorine gas distribution is improved, the reaction efficiency is improved, and by controlling the diameter of the gas distributor 11, the range control of the reaction zone is improved.

[0043] In this application, the installation method of the gas distributor 11 is not limited. It can be installed at the bottom of the reactor 1, or it can be installed on the draft tube 13, or other installation methods, etc. The number, size, and distribution of its air holes are not limited. The gas distributor 11 can have a variable diameter, or a predetermined reaction effect can be obtained by disassembly. This application does not limit this.

[0044] In one embodiment, the continuous production device of antimony pentafluoride is composed of a reactor 1, an antimony storage tank, an antimony feed bin 5, a compressor 6, a condenser 8, and a product storage tank 9. They are connected by pipelines; the lower part of the antimony feed bin 5 is connected to the antimony storage tank, the lower part of the antimony storage tank is connected to the reactor 1, the top of the reactor 1 is connected to the condenser 8, the middle part of the reactor 1 is connected to the product storage tank 9, the liquid phase outlet at the bottom of the condenser 8 is connected to the product storage tank 9, the gas phase outlet at the top of the condenser 8 is divided into two paths, one path is sent to the downstream waste gas system, and one path is connected to the compressor 6, and the outlet of the compressor 6 is connected to the reactor 1.

[0045] A nitrogen pipeline is arranged at the lower part of the antimony storage tank.

[0046] A gas distributor 11 is arranged at the bottom of the reactor 1. A number of φ2 small holes are evenly distributed on the gas distributor 11, and the orifice faces downward. When the diameter of the gas distributor 11 is larger than the diameter of the draft tube 13, the reaction between fluorine gas and antimony occurs outside the draft tube 13. When the diameter of the gas distributor 11 is smaller than the diameter of the draft tube 13, the reaction between fluorine gas and antimony occurs inside the draft tube 13.

[0047] A draft tube 13 is arranged in the middle of the reactor 1, and the diameter of the draft tube 13 is 0.5 times the diameter of the reactor 1.

[0048] The reactor is equipped with a heat exchange coil 12, which can be either an inner coil or an outer coil. Steam or cooling water can be passed through the coil. When the equipment starts to operate, the reaction temperature is increased by adding steam to accelerate the reaction rate. When the equipment is operating normally, part of the reaction heat is removed by adding cooling water to ensure stable operation of the reaction.

[0049] The process flow in the production of antimony pentafluoride is as follows:

[0050] (1) Dry antimony particles with a purity of 99.92 wt% and a particle size of 10 mesh are added to the antimony storage bin 5. The second control valve 4 is opened to allow the antimony particles to flow into the antimony temporary storage tank 3. The air in the antimony temporary storage tank 3 is replaced with nitrogen until the oxygen content is less than 0.1 vol%, then the second control valve 4 is closed. Then the first control valve 2 is opened, and the antimony particles are pressed into the reactor 1 by nitrogen pressure.

[0051] (2) Fresh fluorine gas and recycled fluorine gas from the compressor 6 enter the reactor 1 to react with the antimony particles at a reaction temperature of 265°C. When the equipment starts to operate, the steam in the coil is opened to heat the reactor to increase the reaction rate of fluorine and antimony. After the temperature rises, the steam in the coil is closed and the circulating water is turned on to keep the reaction system temperature stable.

[0052] (3) Part of the antimony pentafluoride gas product is condensed in the condenser 8, and the condensed liquid enters the product storage tank 9. The uncondensed gas, fluorine gas or a mixture of fluorine gas and nitrogen gas, is sent to the downstream waste gas system through the control of the third valve 7, and part of it is returned to the reactor 1 through the compressor 6 for further reaction after being pressurized. Most of the antimony pentafluoride product enters the product storage 9 through the overflow pipe of the reactor.

[0053] After testing and calculation, in this embodiment, the utilization rate of fluorine gas is over 99.6%, the utilization rate of antimony can reach 99.5%, and the purity of antimony pentafluoride in the product is 99.992 wt%.

[0054] The above solution has the following technical effects:

[0055] (1) The antimony particles are added to the reactor after being replaced with nitrogen, resulting in less impurity content, fewer side reactions, and high product purity in the reaction system.

[0056] (2) A gas distributor is provided at the bottom of the reactor, so that the fluorine gas is evenly distributed in the reactor. At the same time, the unreacted antimony particles deposited at the bottom of the reactor are agitated to continue reacting with the fluorine gas, reducing side reactions and increasing the yield.

[0057] (3) A draft tube is provided in the middle of the reactor to improve the agitation degree of the fluid in the container, enabling the fluorine gas to fully contact the antimony particles and increasing the reaction rate.

[0058] (4) The reactor is equipped with heat exchange coils. When the equipment starts to operate, the reaction temperature is increased by adding steam to accelerate the reaction rate. When the equipment is operating normally, part of the reaction heat is removed by adding cooling water to ensure stable operation of the reaction.

[0059] (5) A fluorine gas circulation pipeline is provided, making the fluorine gas in the reactor greatly in excess, enabling the antimony particles to react more thoroughly and improving the utilization rate of fluorine gas at the same time.

[0060] (6) In the continuous production process of antimony pentafluoride, the reaction gas fluorine gas and the solid material antimony particles are continuously added, and the product antimony pentafluoride is continuously produced, enabling continuous production.

[0061] (7) In the continuous production process of antimony pentafluoride, the utilization rate of fluorine gas can reach over 99.5%, the utilization rate of antimony can reach over 99%, and the purity of the product antimony pentafluoride can reach over 99.99 wt%.

[0062] In summary, for the continuous production device of antimony pentafluoride provided by the embodiments of the present invention, the antimony storage bin is connected to the antimony temporary storage tank, the lower part of the antimony temporary storage tank is connected to the top of the reactor, the lower part of the reactor is provided with a fluorine gas input port to input fluorine gas into the reactor, a draft tube is arranged inside the reactor, the antimony temporary storage tank is connected to a nitrogen gas tank to input nitrogen gas for air displacement, the fluorine gas and the antimony particles input from the antimony temporary storage tank into the reactor react in the reactor to generate reactants, which are output to the product storage tank through the reactant outlet arranged in the middle of the reactor, and are cooled by a condenser and stored in the product storage tank. The draft tube divides the space of the reactor into a reaction zone, a gas-liquid separation zone and a liquid circulation zone. The draft tube is provided with a heat exchanger to control the reaction progress of the reactor. The antimony particles are added to the reactor after nitrogen displacement. There are few impurities and side reactions in the reaction system, and the product purity is high.

[0063] The above has introduced the continuous production device of antimony pentafluoride provided by the present invention in detail. Specific examples are used in this article to elaborate on the principle and implementation mode of the present invention. The description of the above embodiments is only used to help understand the method and its core idea of the present invention. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of the present invention, several improvements and modifications can still be made to the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. A continuous production device for antimony pentafluoride, characterized in that, It includes a reactor, an antimony storage tank, an antimony bin, a compressor, a condenser, and a product storage tank. The antimony bin is connected to the antimony storage tank. A fluorine gas inlet is provided at the lower part of the reactor for inputting fluorine gas into the reactor. The lower part of the antimony storage tank is connected to the top of the reactor. A draft tube is arranged inside the reactor. The antimony storage tank is connected to a nitrogen gas tank for inputting the nitrogen gas stored in the nitrogen gas tank for air displacement. The antimony particles input from the antimony storage tank into the reactor react with the fluorine gas in the reactor to generate reaction products, which are input into the product storage tank through a reaction product outlet provided in the middle of the reactor. The bottom liquid phase outlet of the condenser is connected to the product storage tank for cooling the reaction products input into the product storage tank and storing them in the product storage tank. The draft tube divides the space of the reactor into a reaction zone, a gas-liquid separation zone, and a liquid circulation zone. A heat exchanger is arranged on the draft tube to control the reaction progress of the reactor.

2. The continuous production device of antimony pentafluoride according to claim 1, characterized in that, The heat exchanger is a heat exchange coil, and the heat exchange coil is arranged on at least one of the inner side wall and the outer side wall of the draft tube, and the number of the heat exchange coils is at least one.

3. The continuous production device of antimony pentafluoride according to claim 2, characterized in that, The heat exchange coil is clamped or bolted to the draft tube.

4. The continuous production device of antimony pentafluoride according to claim 3, characterized in that, It further includes a heat exchange box connected to the heat exchanger through a heat exchange tube. The heat exchange box inputs a heat exchange medium into the heat exchanger through the heat exchange tube and recovers the heat exchange medium after heat exchange.

5. The continuous production device of antimony pentafluoride according to claim 4, characterized in that, It further includes a condensation temperature sensor arranged on the condenser, a draft temperature sensor arranged on the draft tube, a heat exchange temperature sensor arranged on the heat exchange box, and a controller connected to the condensation temperature sensor, the draft temperature sensor, and the heat exchange temperature sensor. The condensation temperature sensor is used to detect the condensation temperature value of the condensate in the condenser. The draft temperature sensor is used to detect the draft temperature value of the draft tube. The heat exchange temperature sensor is used to detect the output heat exchange temperature value of the heat exchange medium output from the heat exchange box and the recovered heat exchange temperature value of the heat exchange medium recovered by the heat exchange box. The controller is used to control the fluorine gas input flow rate of the fluorine gas inlet, the number of antimony particles input from the antimony storage tank, the heat exchange medium input parameters of the heat exchange box, and the condensate temperature of the condenser according to the condensation temperature value, the draft temperature value, the output heat exchange temperature value, the recovered heat exchange temperature value, and a reaction control instruction.

6. The continuous production device of antimony pentafluoride according to claim 5, characterized in that, It further includes a display connected to the controller for displaying the reaction control instruction, the fluorine gas input flow rate of the fluorine gas inlet, the number of antimony particles input from the antimony storage tank, the heat exchange medium input parameters of the heat exchange box, and the condensate temperature of the condenser.

7. The continuous production device of antimony pentafluoride as described in claim 1, wherein It further includes a gas phase outlet arranged at the top of the condenser, an exhaust gas pipeline connected to the gas phase outlet, and a recycled gas pipeline. The exhaust gas pipeline is used to output the transported exhaust gas to a downstream exhaust gas system. The recycled gas pipeline is connected to the reactor through a compressor for compressing the transported recycled gas through the compressor and transporting it to the reactor.

8. The continuous production device of antimony pentafluoride according to claim 1, wherein, The ratio of the diameter of the draft tube to the diameter of the reactor is 0.5 - 0.

7.

9. The continuous production device of antimony pentafluoride according to claim 1, characterized in that, It further includes a gas distributor arranged at the inner bottom of the reactor. The gas distributor is connected to the fluorine gas inlet. A plurality of gas outlet holes with a diameter of 2 - 8 mm are evenly arranged on the lower surface of the gas distributor. The diameter of the gas distributor is larger than the diameter of the draft tube, and the reaction zone is located outside the draft tube. The diameter of the gas distributor is smaller than the diameter of the draft tube, and the reaction zone is located inside the draft tube.

Images