A reactor for producing fluoroethylene carbonate

Abstract

The utility model relates to reactor technical field provides a reactor for fluorinated ethylene carbonate production, including reactor main part and feed inlet, the top of reactor main part is provided with feed inlet, the side of reactor main part top away from feed inlet is provided with the filler mouth, the top of reactor main part is equipped with the stirring structure, the utility model discloses be provided with stirring structure, start stirring motor makes the stirring shaft rotate, and make the stirring shaft and the output shaft through the intermeshing of primary bevel gear and second bevel gear interconnect, thereby make the stirring shaft and the output shaft synchronous rotation, the stirring shaft drives the stirring vane and carries out the stirring to the inside of reactor main part, and the output shaft drives the quantitative board and rotates in the inside of filler mouth and carries out the quantitative addition of potassium fluoride, thereby reached the purpose of uniform addition of potassium fluoride while conveniently stirring raw materials.

Description

Technical Field

[0001] This utility model relates to the field of reactor technology, and in particular to a reactor for the production of fluoroethylene carbonate. Background Technology

[0002] Fluoroethylene carbonate (FEC) can be used as a pharmaceutical and pesticide intermediate, and is mainly used as an important additive in lithium-ion battery electrolytes. It can inhibit the decomposition of some electrolytes, form a high-performance SEI film on the negative electrode surface to reduce battery impedance, significantly improve battery specific capacity, and improve battery cycle stability. Fluoroethylene carbonate also has flame retardant properties, thus greatly improving battery safety, and its use is becoming increasingly widespread. In the process of producing it, the use of reactors is indispensable. Patent CN217313376U discloses a tower-type reactor for the production of chloroethylene carbonate, comprising: a vessel body, a tower body, an ultraviolet lamp assembly, and a circulating pump. The tower body is fixedly connected to the top of the vessel body. The ultraviolet lamp assembly is located inside both the vessel and the tower body. A ethylene carbonate inlet is located at the top of the vessel body, and a chlorine inlet is located at the bottom of the vessel body. The chlorine inlet is connected to a vertically positioned chlorine distributor. A jacket is provided on the outer wall of the vessel body. A chlorine flow meter and a chlorine inlet valve are sequentially installed on the chlorine delivery pipeline connected to the chlorine inlet. A thermometer is also installed on the upper part of the vessel body. The reaction liquid outlet of the vessel body is connected to the reaction liquid inlet of the tower body. The circulating pump is located on the reaction liquid delivery pipeline, which is also connected to a spray head located inside the tower body. This application improves the reaction rate of chloroethylene carbonate synthesis, increases the illumination area, reduces impurity generation, and simultaneously improves the yield of chloroethylene carbonate. The reactors described above are not convenient for stirring the raw materials inside to increase reaction efficiency during use, and they are also not convenient for uniformly adding potassium fluoride to fluorinate chloroethylene carbonate to synthesize fluoroethylene carbonate. As a result, their production efficiency and quality are insufficient and cannot meet the actual use requirements. Summary of the Invention

[0003] The purpose of this invention is to provide a reactor for the production of fluoroethylene carbonate, in order to solve the shortcomings of existing reactors for the production of fluoroethylene carbonate in terms of insufficient production efficiency and quality.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a reactor for the production of fluoroethylene carbonate, comprising a reactor body and a feed inlet; The reactor body has a feed inlet at the top and a packing inlet on the side of the top of the reactor body away from the feed inlet. A stirring structure is installed at the top of the reactor body. The reactor body has a discharge port at the bottom and a temperature regulating structure at the top. The temperature regulation structure includes an air inlet at the top of the reactor body and heating tubes evenly installed inside the reactor body. A drive motor is installed at the top of the air inlet, and an air inlet valve is provided below the drive motor. Each heating tube is equipped with a heating wire, and a temperature sensor is installed inside the reactor body below the heating tubes.

[0005] Preferably, the stirring structure includes a stirring motor installed at the top of the reactor body, a stirring shaft at the bottom of the stirring motor, stirring impellers evenly installed on the outer wall of the stirring shaft, a first bevel gear at the top of the stirring motor, a second bevel gear on one side of the first bevel gear, an output shaft on one side of the second bevel gear, and a metering plate evenly installed on the outer wall of the output shaft.

[0006] Preferably, the bottom of the stirring shaft extends into the interior of the reactor body, and the stirring impellers are evenly distributed on the outer wall of the stirring shaft.

[0007] Preferably, the first bevel gear and the second bevel gear mesh with each other, and the output shaft extends into the interior of the filler inlet.

[0008] Preferably, the metering plates are evenly distributed on the outer wall of the output shaft, and the side of the metering plates away from the output shaft is in contact with the inner wall of the filling port.

[0009] Preferably, the air inlet valve is located inside the air inlet, and the heating tubes are evenly distributed inside the reactor body.

[0010] Preferably, the temperature sensor is externally connected to a microcontroller, and the output terminal of the microcontroller is wired to the input terminal of the heating wire.

[0011] The reactor for the production of fluoroethylene carbonate provided by this utility model has the following advantages: By incorporating a stirring structure, starting the stirring motor causes the stirring shaft to rotate. The stirring shaft and the output shaft are connected by meshing bevel gears No. 1 and No. 2, allowing the stirring shaft and the output shaft to rotate synchronously. The stirring shaft drives the stirring impeller to stir the interior of the reactor body, while the output shaft drives the metering plate to rotate inside the packing inlet to add potassium fluoride in a metered manner. This achieves the goal of facilitating the stirring of raw materials while uniformly adding potassium fluoride. By incorporating a temperature regulation structure, a temperature sensor monitors the reaction temperature inside the reactor body in real time. An external microcontroller is connected to the microcontroller, and its output is wired to the input of the heating wire. This allows for easy control of the heating wire's activation, ensuring that the reaction temperature inside the reactor body remains within a suitable range of 80-85°C. This facilitates temperature control and improves reaction efficiency. Attached Figure Description

[0012] Figure 1 This is a front-view three-dimensional structural schematic diagram of the present invention; Figure 2 This is a top-view three-dimensional structural diagram of the present invention; Figure 3 This is a cross-sectional front view of the three-dimensional structure of this utility model; Figure 4 This is a partial three-dimensional structural schematic diagram of the present invention; Figure 5 This is a three-dimensional structural schematic diagram of the present invention from a cross-sectional side view.

[0013] The following are the labels in the attached diagram: 1. Reactor body; 2. Feed inlet; 3. Packing inlet; 4. Stirring structure; 401. Stirring motor; 402. Stirring shaft; 403. Stirring impeller; 404. First bevel gear; 405. Second bevel gear; 406. Output shaft; 407. Metering plate; 5. Discharge outlet; 6. Temperature regulation structure; 601. Air inlet; 602. Heating element; 603. Drive motor; 604. Air inlet valve; 605. Heating wire; 606. Temperature sensor. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Please see Figures 1-5 The present invention provides a reactor for the production of fluoroethylene carbonate, comprising a reactor body 1 and a feed inlet 2.

[0016] Reference Figures 1-4As shown, a feed inlet 2 is provided at the top of the reactor body 1, and a packing inlet 3 is provided on the side of the top of the reactor body 1 away from the feed inlet 2. A stirring structure 4 is installed at the top of the reactor body 1. The stirring structure 4 includes a stirring motor 401 installed at the top of the reactor body 1. A stirring shaft 402 is provided at the bottom of the stirring motor 401. Stirring impellers 403 are evenly installed on the outer wall of the stirring shaft 402. A first bevel gear 404 is provided at the top of the stirring motor 401. A second bevel gear 405 is provided on one side of the first bevel gear 404. An output shaft 406 is provided on one side of the bevel gear 405. A metering plate 407 is evenly installed on the outer wall of the output shaft 406. The bottom of the stirring shaft 402 extends into the interior of the reactor body 1. The stirring impeller 403 is evenly distributed on the outer wall of the stirring shaft 402. The first bevel gear 404 and the second bevel gear 405 mesh with each other. The output shaft 406 extends into the interior of the packing port 3. The metering plate 407 is evenly distributed on the outer wall of the output shaft 406. The side of the metering plate 407 away from the output shaft 406 abuts against the inner wall of the packing port 3.

[0017] Fluorinated ethylene carbonate is widely used as an intermediate in pharmaceuticals and pesticides, thus requiring extensive production and processing. During production, potassium fluoride is added as a fluorinating agent while providing an alkaline environment. A stirring structure 4 is installed, and the stirring motor 401 is activated, causing the stirring shaft 402 to drive the stirring impeller 403 to rotate inside the reactor body 1. This results in a more uniform reaction of the raw materials and improves production efficiency. A set of meshing gears is installed on the outer wall of the stirring shaft 402, causing the output shaft 406 to rotate synchronously with the stirring shaft 402. One side of the output shaft 406 extends into the interior of the packing port 3, causing the metering plate 407 to rotate on the outer wall of the output shaft 406. This ensures that the potassium fluoride added into the reactor body 1 through the packing port 3 is evenly distributed, greatly increasing the practicality of the device.

[0018] Reference Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown, a discharge port 5 is provided at the bottom of the reactor body 1, and a temperature regulating structure 6 is provided at the top of the reactor body 1. The temperature regulating structure 6 includes an air inlet 601 provided at the top of the reactor body 1 and heating tubes 602 evenly installed inside the reactor body 1. A drive motor 603 is installed at the top of the air inlet 601, and an air inlet valve 604 is provided below the drive motor 603. Each heating tube 602 is equipped with a heating wire 605. A temperature sensor 606 is installed inside the reactor body 1 below the heating tubes 602. The air inlet valve 604 is located inside the air inlet 601. The heating tubes 602 are evenly distributed inside the reactor body 1. A microcontroller is connected to the temperature sensor 606. The output terminal of the microcontroller is connected to the input terminal of the heating wire 605 by wire.

[0019] The optimal temperature for synthesizing fluoroethylene carbonate is between 80-85℃. Therefore, it is necessary to control the temperature inside the reactor body 1. This is achieved by incorporating a temperature regulation structure 6. During the synthesis process, the drive motor 603 is activated to open the air inlet valve 604, thereby adding nitrogen gas into the reactor body 1 and venting oxygen to prevent oxidation reactions that could produce byproducts and affect product quality. During the synthesis process, the heating wire 605 inside the heating tube 602 is activated to heat the inside of the reactor body 1. The temperature is detected by a temperature sensor 606 installed at the bottom of the reactor body 1, and the heating wire 605 is controlled by an external microcontroller. This ensures that the temperature inside the reactor body 1 is constantly maintained at the appropriate synthesis temperature, greatly increasing the practicality of the device.

[0020] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A reactor for the production of fluoroethylene carbonate, comprising a reactor body (1) and a feed inlet (2); characterized in that: The reactor body (1) has a feed inlet (2) at the top and a packing inlet (3) on the side of the reactor body (1) away from the feed inlet (2). The reactor body (1) is equipped with a stirring structure (4). The reactor body (1) has a discharge port (5) at the bottom and a temperature regulation structure (6) at the top. The temperature regulation structure (6) includes an air inlet (601) opened at the top of the reactor body (1) and heating tubes (602) evenly installed inside the reactor body (1). A drive motor (603) is installed at the top of the air inlet (601), and an air inlet valve (604) is provided below the drive motor (603). Each heating tube (602) is equipped with an electric heating wire (605), and a temperature sensor (606) is installed inside the reactor body (1) below the heating tube (602).

2. The reactor for producing fluoroethylene carbonate according to claim 1, characterized in that: The stirring structure (4) includes a stirring motor (401) installed at the top of the reactor body (1). The bottom end of the stirring motor (401) is provided with a stirring shaft (402). Stirring impellers (403) are evenly installed on the outer wall of the stirring shaft (402). A first bevel gear (404) is provided at the top of the stirring motor (401). A second bevel gear (405) is provided on one side of the first bevel gear (404). An output shaft (406) is provided on one side of the second bevel gear (405). A metering plate (407) is evenly installed on the outer wall of the output shaft (406).

3. The reactor for producing fluoroethylene carbonate according to claim 2, characterized in that: The bottom of the stirring shaft (402) extends into the interior of the reactor body (1), and the stirring impellers (403) are evenly distributed on the outer wall of the stirring shaft (402).

4. The reactor for producing fluoroethylene carbonate according to claim 2, characterized in that: The first bevel gear (404) meshes with the second bevel gear (405), and the output shaft (406) extends into the interior of the filler inlet (3).

5. The reactor for producing fluoroethylene carbonate according to claim 2, characterized in that: The metering plates (407) are evenly distributed on the outer wall of the output shaft (406), and the side of the metering plates (407) away from the output shaft (406) is in contact with the inner wall of the filling port (3).

6. The reactor for producing fluoroethylene carbonate according to claim 1, characterized in that: The air inlet valve (604) is located inside the air inlet (601), and the heating tubes (602) are evenly distributed inside the reactor body (1).

7. The reactor for producing fluoroethylene carbonate according to claim 1, characterized in that: The temperature sensor (606) is externally connected to a microcontroller, and the output terminal of the microcontroller is connected to the input terminal of the heating wire (605) by wire.

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