Fluorination reaction continuous production device

Abstract

The utility model relates to the technical field of chemical synthesis devices, in particular to a continuous production device for fluorination reaction. Comprising a catalyst conveying assembly, a hydrogen fluoride conveying assembly, a sulfonyl fluoride synthesis assembly and a sulfonyl chloride conveying assembly, the sulfonyl fluoride synthesis assembly comprises a reactor, a circulating pump, a static mixer, a post-treatment system and a filtering assembly, and the reactor is provided with a first inlet, a second inlet, a first outlet and a second outlet; the hydrogen fluoride conveying assembly communicates with the first inlet through a pipeline, the catalyst conveying assembly communicates with the second inlet through a pipeline, the first outlet communicates with the circulating pump through a pipeline, the end, away from the reactor, of the circulating pump communicates with the static mixer through a pipeline, and the end, away from the circulating pump, of the static mixer is connected to the first inlet through a pipeline. The second outlet is communicated with the post-treatment system through a pipeline, and the sulfonyl chloride conveying assembly is communicated with the static mixer through a pipeline; according to the utility model, the production efficiency is improved, and the energy consumption is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to chemical synthesis device technical field especially relates to a fluorination reaction continuous production device. BACKGROUND

[0002] Sulfonyl fluoride is an inorganic compound, colorless and odorless toxic gas at room temperature and normal pressure, mainly used as insecticide; due to the strong diffusion and penetration of sulfonyl fluoride, broad-spectrum insecticide, low drug dosage, low residual amount, fast insecticidal speed, short gas dispersion time, convenient low-temperature use, no effect on germination rate and low toxicity, etc., it is more and more widely used in warehouse, cargo ship, container and building, reservoir dam, termite control and garden overwintering pest, live tree dryness pest control.

[0003] Sulfonyl fluoride and its derivatives such as lithium bisfluorosulfonylimide (LiFSI) can be used as electrolyte additives, which can help form a stable SEI layer on the negative electrode surface of the battery. This SEI layer is rich in LiF, has high ionic conductivity and good electron blocking property, thereby reducing the decomposition of electrolyte, improving the cycle stability and safety of the battery, and significantly improving the overall performance of the battery.

[0004] The traditional sulfonyl fluoride production method is mostly intermittent production, which has the problems of low efficiency, high energy consumption and complex operation.

[0005] Therefore, it is urgent to provide a fluorination reaction continuous production device, which improves the production efficiency and reduces the energy consumption compared with the prior art. UTILITY MODEL CONTENT

[0006] The utility model solves the technical problems existing in the prior art, and provides a fluorination reaction continuous production device.

[0007] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0008] A fluorination reaction continuous production device, comprising a catalyst conveying assembly, a hydrogen fluoride conveying assembly, a sulfonyl fluoride synthesis assembly and a sulfonyl chloride conveying assembly, the sulfonyl fluoride synthesis assembly comprising a reactor, a circulating pump, a static mixer, a post-treatment system and a filter assembly, the reactor being provided with a first inlet, a second inlet, a first outlet and a second outlet, the hydrogen fluoride conveying assembly being communicated with the first inlet through a pipeline, the catalyst conveying assembly being communicated with the second inlet through a pipeline, the first outlet being communicated with the circulating pump through a pipeline, one end of the circulating pump away from the reactor being communicated with the static mixer through a pipeline, one end of the static mixer away from the circulating pump being connected to the first inlet through a pipeline, the second outlet being communicated with the post-treatment system through a pipeline, and the sulfonyl chloride conveying assembly being communicated with the static mixer through a pipeline.

[0009] Further, a heat exchanger is arranged in series on the pipeline through which the circulating pump communicates with the static mixer.

[0010] Still further, the sulfonyl fluoride synthesis assembly further comprises a filter assembly, which is communicated on the pipeline through which the circulating pump communicates with the heat exchanger.

[0011] Still further, the filter assembly comprises a first filter and a second filter, and the first filter and the second filter are arranged in parallel.

[0012] Still further, valves are arranged in series at both ends of the first filter on the branch through which the first filter is arranged, and valves are arranged in series at both ends of the second filter on the branch through which the second filter is arranged.

[0013] Further, a mixing nozzle is arranged at the first inlet, and the mixing nozzle is arranged inside the reactor.

[0014] Further, the pipeline through which the catalyst delivery assembly communicates with the reactor is arranged to extend into the middle and lower part inside the reactor.

[0015] Further, valves are arranged in series on the pipeline through which the catalyst delivery assembly is connected with the reactor, on the pipeline through which the hydrogen fluoride delivery assembly communicates with the reactor, and on the pipeline through which the sulfonyl chloride delivery assembly communicates with the static mixer.

[0016] Further, a check valve and a valve are arranged in series on the pipeline through which the circulating pump communicates with the filter assembly.

[0017] Compared with the prior art, the sulfonyl fluoride continuous production device has the following beneficial effects:

[0018] The sulfonyl fluoride continuous production device realizes continuous production of sulfonyl fluoride, reduces downtime, improves production capacity, and improves production efficiency; the catalyst, hydrogen fluoride and sulfonyl chloride are preheated, the reaction conditions are optimized, the reaction rate and product purity are improved, the material utilization rate is improved, and the generation of by-products is reduced; the operation process is simplified, the energy consumption and production cost are reduced, and thus the safety and reliability of production are improved. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a schematic diagram of the overall structure of the sulfonyl fluoride continuous production device.

[0020] DETAILED DESCRIPTION OF DRAWINGS

[0021] 1, catalyst delivery assembly; 2, hydrogen fluoride delivery assembly; 3, sulfonyl chloride delivery assembly; 4, mixing nozzle; 5, reactor; 6, circulating pump; 7, first filter; 8, second filter; 9, static mixer; 10, post-treatment system; 11, valve; 12, check valve; 13, heat exchanger. DETAILED DESCRIPTION

[0022] The technical solutions of the present application will be described clearly below in combination with the drawings. Obviously, the described embodiments are not all the embodiments of the present application, and all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application. It should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0023] As shown in Figure 1 The present application provides a fluorination reaction continuous production device, which comprises a catalyst delivery assembly 1, a hydrogen fluoride delivery assembly 2, a sulfonyl fluoride synthesis assembly and a sulfonyl chloride delivery assembly 3. The sulfonyl fluoride synthesis assembly comprises a reactor 5, a mixing nozzle 4, a circulating pump 6, a heat exchanger 13, a static mixer 9, a post-treatment system 10 and a filter assembly. The reactor 5 is provided with a first inlet, a second inlet, a first outlet and a second outlet. The mixing nozzle 4 is connected to the first inlet of the reactor 5 and arranged inside the reactor 5. The catalyst delivery assembly 1 is connected to the second inlet of the reactor 5 and arranged in the middle and lower part of the reactor 5. The circulating pump 6 is connected to the first outlet of the reactor 5 through a pipeline. The heat exchanger 13 is connected to the circulating pump 6 through a pipeline. The static mixer 9 is connected to the heat exchanger 13 through a pipeline. The second outlet of the reactor 5 is connected to the post-treatment assembly through a pipeline. The hydrogen fluoride delivery assembly 2 is connected to the first inlet. The sulfonyl chloride delivery assembly 3 is connected to the static mixer 9. The filter assembly is connected between the circulating pump 6 and the heat exchanger 13.

[0024] The filter assembly comprises a first filter 7 and a second filter 8 arranged in parallel, the input ends of the first filter 7 and the second filter 8 are connected to a pipeline between the circulating pump 6 and the heat exchanger 13 via a pipeline, and are arranged close to the circulating pump 6; the output ends of the first filter 7 and the second filter 8 are connected to the pipeline between the circulating pump 6 and the heat exchanger 13 via a pipeline, and are arranged close to the heat exchanger 13.

[0025] Valves 11 are arranged in series on the pipeline between the reactor 5 and the circulating pump 6, on the pipeline between the post-treatment system 10 and the reactor 5, on the pipeline between the two ends of the first filter 7, on the pipeline between the two ends of the second filter 8, and on the pipeline between the output ends of the first filter 7 and the second filter 8; a check valve 12 and a valve 11 are arranged in series on the pipeline between the circulating pump 6 and the filter assembly.

[0026] The catalyst delivery assembly 1 is used for configuring a catalyst solution and delivering the catalyst solution into the reactor 5, the hydrogen fluoride delivery assembly 2 is used for storing hydrogen fluoride, preheating the hydrogen fluoride, and delivering the hydrogen fluoride into the reactor 5, and the sulfonyl chloride delivery assembly 3 is used for storing sulfonyl chloride, preheating the sulfonyl chloride, and delivering the sulfonyl chloride into the static mixer 9; the catalyst delivery assembly 1, the hydrogen fluoride delivery assembly 2, and the sulfonyl chloride delivery assembly 3 all use existing tanks for storage and pumps for delivery; the hydrogen fluoride delivery assembly 2 and the sulfonyl chloride delivery assembly 3 both use heaters for preheating.

[0027] Valves 11 are arranged in series on the pipeline between the catalyst delivery assembly 1 and the reactor 5, on the pipeline between the hydrogen fluoride delivery assembly 2 and the reactor 5, and on the pipeline between the sulfonyl chloride delivery assembly 3 and the static mixer 9.

[0028] The working principle of the fluorination reaction continuous production device is as follows: a proper amount of catalyst solution is configured in the catalyst conveying assembly 1, then a certain amount of catalyst is pumped into the reactor 5, the circulating pump 6 is started, the solution in the reactor 5 forms a circulating loop along the reactor 5-circulating pump 6-heat exchanger 13-static mixer 9-reactor 5, the circulating catalyst solution is heated to a proper reaction temperature through the heat exchanger 13, then hydrogen fluoride is preheated by the hydrogen fluoride conveying assembly 2 and delivered to the inside of the reactor 5 through the mixing nozzle 4, the mixing nozzle 4 sprays hydrogen chloride, which is mixed with the catalyst solution, then sulfonyl chloride is preheated by the sulfonyl chloride conveying assembly 3 and delivered to the static mixer 9, which is mixed with hydrogen fluoride in the circulating loop to perform fluorination reaction, in the reaction process, the heat exchanger 13 controls the reaction temperature, the generated sulfonyl fluoride, hydrogen chloride and by-products are delivered into the post-processing system 10 through the second outlet to be treated and purified, and the sulfonyl fluoride is obtained, the generated solid particles are separated through the filtering assembly, and the first filter 7 and the second filter 8 can be used alternately; in the whole reaction process, hydrogen fluoride and sulfonyl chloride are continuously fed, and the reaction product is continuously discharged in gas phase, and the whole production process realizes continuous operation; through adjustment of the type of catalyst, the reaction temperature and the feeding rate, efficient production of sulfonyl fluoride can be realized.

[0029] The sulfonyl fluoride is continuously produced, the downtime is reduced, the production capacity is improved, and the production efficiency is improved; the catalyst, hydrogen fluoride and sulfonyl chloride are preheated, the reaction conditions are optimized, the reaction rate and product purity are improved, the material utilization rate is improved, and the generation of by-products is reduced; the operation process is simplified, the energy consumption and production cost are reduced, and thus the safety and reliability of production are improved.

[0030] Finally, it should be noted that the above content is only used to illustrate the technical scheme of the utility model, and is not a limitation on the protection scope of the utility model, and the simple modification or equivalent replacement of the technical scheme of the utility model by the ordinary skilled in the art does not deviate from the essence and scope of the technical scheme of the utility model.

Claims

1. A continuous fluorination reaction production apparatus, characterized in that, The system comprises a catalyst delivery assembly, a hydrogen fluoride delivery assembly, a sulfonyl fluoride synthesis assembly and a sulfonyl chloride delivery assembly, the sulfonyl fluoride synthesis assembly comprises a reactor, a circulating pump, a static mixer, a post-treatment system and a filter assembly, the reactor is provided with a first inlet, a second inlet, a first outlet and a second outlet, the hydrogen fluoride delivery assembly is communicated with the first inlet through a pipeline, the catalyst delivery assembly is communicated with the second inlet through a pipeline, the first outlet is communicated with the circulating pump through a pipeline, one end of the circulating pump away from the reactor is communicated with the static mixer through a pipeline, one end of the static mixer away from the circulating pump is connected to the first inlet through a pipeline, the second outlet is communicated with the post-treatment system through a pipeline, and the sulfonyl chloride delivery assembly is communicated with the static mixer through a pipeline.

2. The apparatus for continuous production of fluorination reaction according to claim 1, wherein, A heat exchanger is arranged in series on the pipeline through which the circulating pump is communicated with the static mixer.

3. The apparatus for continuous production of a fluorinated reaction product according to claim 2, wherein, The sulfonyl fluoride synthesis assembly further comprises a filter assembly, which is communicated on the pipeline through which the circulating pump is communicated with the heat exchanger.

4. The apparatus for continuous production of a fluorinated reaction product according to claim 3, wherein The filter assembly comprises a first filter and a second filter, and the first filter and the second filter are arranged in parallel.

5. The apparatus for continuous production of a fluorinated reaction product according to claim 4, wherein Valves are arranged in series at both ends of the first filter on the branch of the first filter, and valves are arranged in series at both ends of the second filter on the branch of the second filter.

6. The apparatus for continuous production of fluorination reaction according to claim 1, wherein, A mixing nozzle is arranged at the first inlet and inside the reactor.

7. The apparatus for continuous production of fluorination reaction according to claim 1, wherein, The pipeline through which the catalyst delivery assembly is communicated with the reactor is arranged to extend into the middle and lower part of the reactor.

8. The apparatus for continuous production of fluorination reaction according to claim 1, wherein, Valves are arranged in series on the pipeline through which the catalyst delivery assembly is connected with the reactor, on the pipeline through which the hydrogen fluoride delivery assembly is communicated with the reactor, and on the pipeline through which the sulfonyl chloride delivery assembly is communicated with the static mixer.

9. The apparatus for continuous production of fluorination reaction according to claim 1, wherein, A check valve and a valve are arranged in series on the pipeline through which the circulating pump is communicated with the filter assembly.

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