Electrolytic fluorination system
By designing a miniaturized electrolytic fluorination system, including an electrolytic cell and a cooling device, the problems of large size and complex processes in existing fluorination devices have been solved, achieving efficient fluorination of trace raw materials in the laboratory.
Patent Information
- Application Number
- CN202423296329.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2034-12-31
AI Technical Summary
Existing fluorination devices are large in size, the fluorination process is complex, and the applicability is poor, making it difficult to conduct research on trace raw materials in the laboratory.
An electrolytic fluorination system comprising an electrolysis unit and a cooling unit was designed. The electrolysis unit consists of an electrolytic cell, a raw material storage tank, a condenser, and a product collection tank. The cooling unit consists of a chiller and a water cooling head. By simplifying the structure and controlling the temperature precisely, a miniaturized and efficient fluorination process is achieved.
This invention enables the miniaturization of the electrolytic fluorination system and the implementation of a highly efficient fluorination process, making it suitable for laboratory use and the fluorination of trace raw materials, thus improving the applicability and safety of the experimental apparatus.
Smart Images
Figure CN223620489U_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the field of fluorination process equipment, and more specifically, relates to an electrolytic fluorination system. Background Technology
[0002] Electrolytic fluorination is a method that introduces fluorine directly into organic molecules through electrode reactions under electrochemical conditions. Because fluorinated compounds possess unique physical, chemical, and physiological properties, they are widely used in medicine, pesticides, and many cutting-edge technology fields.
[0003] In related technologies, fluorination devices are typically used in industrial production. They are large in size and the fluorination process is relatively complex, making them unsuitable for laboratory settings and research on trace raw materials, thus having poor applicability. Utility Model Content
[0004] To address the shortcomings of existing technologies, this application provides an electrolytic fluorination system, which aims to solve the problems of large size, complex fluorination process, and poor applicability of existing fluorination devices.
[0005] This application provides an electrolytic fluorination system, specifically including an electrolysis device and a cooling device, wherein: the electrolysis device includes an electrolytic cell, a raw material storage tank, a condenser, and a product collection tank; the outlet of the raw material storage tank is connected to the inlet of the electrolytic cell, the outlet of the electrolytic cell is connected to the inlet of the condenser, and the outlet of the condenser is connected to the inlet of the product collection tank; the cooling device includes a chiller and a water-cooling head; the water-cooling head is fixedly connected to the electrolytic cell, the inlet of the water-cooling head is connected to the outlet of the condenser, the outlet of the water-cooling head is connected to the inlet of the chiller, and the outlet of the chiller is connected to the inlet of the condenser.
[0006] Compared with the prior art, the above-described technical solutions conceived in this application simplify the structure of existing fluorination devices, making them smaller in size, and the fluorination process is simpler and more efficient. This results in the electrolytic fluorination system of this application being more suitable for laboratory use and for fluorinating trace amounts of raw materials, thus achieving better applicability.
[0007] As a further preferred embodiment, the electrolytic cell includes a cell body, a cell cover, an anode plate, and a sealing ring. The anode plate is fixedly installed in the cell body. The inlet and outlet of the electrolytic cell are both located on the cell body. The cell cover is placed on the top of the cell body, and the sealing ring is located between the cell body and the cell cover.
[0008] As a further preferred embodiment, the electrolytic cell further includes an anode terminal and a cathode terminal, the anode terminal passing through the cell cover and connected to the anode plate, an insulating sleeve being provided between the anode terminal and the cell cover, and the cathode terminal being fixedly connected to the cell cover; the electrolysis device further includes a power supply electrically connected to the anode terminal and the cathode terminal respectively.
[0009] As a further preferred embodiment, the condenser includes a first space with a water inlet and a water outlet and a second space with a feed inlet and a discharge outlet, wherein the first space covers the outside of the second space and the first space and the second space are separate from each other.
[0010] As a further preferred embodiment, temperature sensors are installed in both the first space and the electrolytic cell.
[0011] As a further preferred embodiment, the condenser is provided with an exhaust port that communicates with the second space.
[0012] As a further preferred embodiment, the electrolysis device further includes an electrolyte circulation pump, and the raw material storage tank and the electrolysis cell are connected by the electrolyte circulation pump.
[0013] As a further preferred embodiment, the cooling device also includes a booster pump, and the refrigeration unit and the condenser are connected via the booster pump.
[0014] As a further preferred embodiment, the condenser is located at the highest point of the electrolytic fluorination system.
[0015] As a further preferred embodiment, the electrolysis apparatus further includes a gas injection mechanism for injecting inert gas into the electrolytic cell.
[0016] In summary, compared with the prior art, the technical solutions conceived in this application have the following main technical advantages:
[0017] 1. In this application, the raw materials in the raw material storage tank enter the electrolytic cell for electrochemical reaction. After the raw materials are fluorinated, they enter the condenser for condensation, so that the fluorinated products can be collected in the product collection tank. This electrolytic fluorination system simplifies the structure of existing fluorination devices, making the overall size smaller, and the fluorination process is simpler and more efficient. The electrolytic fluorination system of this application is suitable for laboratory use and for fluorinating trace amounts of raw materials. It has better applicability and can provide researchers with a safe and efficient fluorination experimental device.
[0018] 2. This application improves the efficiency of the fluorination process by precisely controlling the temperature of the fluorination process through the installation of temperature sensors in both the first space of the condenser and the electrolytic cell.
[0019] 3. This application improves the safety of the fluorination process by incorporating a gas injection mechanism, which ensures that the raw materials are protected by an inert gas during the fluorination process. Attached Figure Description
[0020] Figure 1 This is a system flow diagram of the electrolytic fluorination system provided in the embodiments of this application;
[0021] Figure 2 This is a schematic diagram of the overall structure of the electrolytic cell provided in the embodiments of this application.
[0022] In all the accompanying drawings, the same reference numerals are used to denote the same elements or structures, wherein:
[0023] 1. Electrolysis unit; 11. Power supply; 12. Electrolytic cell; 121. Cell body; 122. Cell cover; 123. Anode plate; 124. Sealing ring; 125. Anode terminal; 126. Cathode terminal; 127. Insulating sleeve; 13. Electrolyte circulation pump; 14. T-joint; 15. Raw material storage tank; 16. Product collection tank; 17. Condenser; 18. Solenoid valve; 2. Cooling unit; 21. Water cooling head; 22. Refrigeration unit; 23. Booster pump. Detailed Implementation
[0024] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.
[0025] Hydrogen fluoride is generally used as a solvent in electrolytic fluorination systems. Since the boiling point of hydrogen fluoride is 19.5°C, electrolytic fluorination systems need to be carried out in a low-temperature environment.
[0026] Reference Figure 1 The electrolytic fluorination system disclosed in this application includes an electrolysis device 1 and a cooling device 2, wherein the electrolysis device 1 performs the electrolytic fluorination process on the raw material, and the cooling device 2 provides a low-temperature environment for the electrolytic fluorination process.
[0027] In this embodiment, the electrolysis device 1 includes a 12V power supply 11, an electrolytic cell 12, an electrolyte circulation pump 13, a raw material storage tank 15, a condenser 17, and a product collection tank 16, which are connected by pipelines to form a sealed electrolysis circulation system. The raw material storage tank 15 is connected to the electrolysis circulation system by a three-way connector 14. The raw material storage tank 15 stores hydrogen fluoride and the material to be fluorinated as the electrolyte, such as ethanol to be fluorinated. The electrolytic cell 12 includes a cell body 121, a cell cover 122, an anode plate 123, a sealing ring 124, an anode terminal 125, and a cathode terminal 126. The volume of the cell body 121 is 5ml-100ml, which can be selected according to actual experimental needs. The anode plate 123 is fixedly installed in the cell body 121 with bolts and can be immersed in the electrolyte in the cell body 121 during the electrolytic fluorination process. The cell body 121 of the electrolytic cell 12 is provided with an inlet and an outlet. The cell cover 122 is placed on the top of the cell body 121, and the sealing ring 124 is placed between the cell body 121 and the cell cover 122 to ensure... The raw material is sealed during the fluorination process. During the fluorination process, the tank body 121 and the tank cover 122 are fixedly connected by bolts. The anode terminal 125 passes through the tank cover 122 and is connected to the anode plate 123. An insulating sleeve 127 is provided between the anode terminal 125 and the tank cover 122. The cathode terminal 126 is fixedly connected to the tank cover 122. The anode terminal 125 and the cathode terminal 126 are electrically connected to the power supply 11. During the electrolytic fluorination process of the electrolyte, the anode plate 123 is the anode, and the tank body 121 and the tank cover 122 are the cathodes. The raw material electrolyte can be electrolytically fluorinated in the low-temperature tank body 121.
[0028] Specifically, the outlet of the raw material storage tank 15 is connected to the inlet of the electrolytic cell 12. Furthermore, the raw material storage tank 15 and the electrolytic cell 12 are connected via an electrolyte circulation pump 13, which can draw raw materials from the raw material storage tank 15 and discharge them into the electrolytic cell 12. In this embodiment, since hydrogen fluoride is generally used as a solvent in the electrolytic fluorination system, hydrogen gas is generated during electrolytic fluorination. Hydrogen gas has a lower density and rises, while the gas also carries some hydrogen fluoride. The condenser 17 is placed at the top to facilitate cooling of the hydrogen fluoride carried by the gas, allowing it to flow into the electrolytic fluorination system by gravity. Therefore, the condenser 17 is located at the highest point of the electrolytic fluorination system. The condenser 17 has a second space with an inlet and an outlet. The outlet of the electrolytic cell 12 is connected to the inlet of the condenser 17. The fluorinated raw material can be discharged after being condensed by the condenser 17. The outlet of the condenser 17 is connected to the inlet of the product collection tank 16 to facilitate the collection of fluorinated products. At the same time, the vaporized hydrogen fluoride can be returned to the electrolytic circulation system after being condensed. The condenser 17 has an exhaust port connected to the second space. The tail gas generated during the raw material fluorination process is discharged through the exhaust port.
[0029] More specifically, in order to provide a low-temperature environment for the fluorination process of raw materials, the cooling device 2 includes a water cooling head 21, a chiller 22 and a booster pump, which are connected by pipes to form a sealed cooling circulation system. The water cooling head 21 is fixedly connected to the electrolytic cell 12 by bonding or welding to cool the cell body 121. The condenser 17 has a first space with an inlet and an outlet. The first space covers the outside of the second space and the first and second spaces are separated from each other. The outlet of the chiller 22 is connected to the inlet of the condenser 17 through a booster pump 23. The cooling medium enters from the inlet of the condenser 17 until it fills the entire refrigeration system and circulates within the refrigeration system. The inlet of the water-cooling head 21 is connected to the outlet of the condenser 17, and the outlet of the water-cooling head 21 is connected to the inlet of the chiller 22. Cold water circulates between the chiller 22, the booster pump 23, the condenser 17, and the water-cooling head 21, which can ensure that the condenser 17 and the electrolytic cell 12 maintain a low temperature environment. Temperature sensors are installed in both the first space and the electrolytic cell 12 to accurately control the temperature of the fluorination process, thereby improving the effect of the fluorination process. During actual fluorination, the temperature of the cooling medium and the tank 121 is controlled between 0℃ and 20℃.
[0030] Furthermore, the electrolysis apparatus in this application also includes a gas injection mechanism for injecting nitrogen or other inert gases into the electrolytic cell 12, thereby improving the safety of the raw material fluorination process by ensuring that the raw material is protected by an inert gas during the fluorination process.
[0031] Furthermore, this application uses an electrolyte circulation pump 13 to draw the electrolyte from the raw material storage tank 15 into the electrolytic circulation system, or uses nitrogen or other inert gases to pump the reaction liquid from the raw material storage tank 15 into the electrolytic circulation system. After feeding, the electrolyte begins to circulate within the electrolysis device 1. The power supply 11 is turned on, and the voltage of the electrolytic cell 12 is controlled at 5-8V. The temperature inside the cell 121 is controlled at 0℃-20℃ for electrolysis. The gas generated during electrolysis is discharged through the exhaust port of the condenser 17. After fluorination is completed, the product is collected at the bottom of the product receiving tank. Nitrogen gas is introduced into the electrolytic circulation system to dry the system and exhaust air before and after the fluorination process.
[0032] In this application, all components of the electrolysis device 1 and the cooling device 2 are wrapped with thermal insulation cotton to reduce heat loss. The components are connected by pressure-resistant pipes, preferably transparent polytetrafluoroethylene (PTFE) pipes. Furthermore, multiple solenoid valves 18 are installed on the pipes in the electrolysis circulation system; their specific locations are as follows: Figure 1As shown, in the actual fluorination process, the electrolytic circulation system is fully connected and sealed by controlling the opening and closing of the solenoid valve 18. Each component performs its function by controlling the opening and closing of the solenoid valve 18 (for example, when the electrolyte circulation pump 13 draws raw materials from the raw material storage tank 15, the solenoid valve 18 except for the outlet of the raw material storage tank 15 needs to be closed). This is common knowledge and a conventional technical means, and will not be listed in detail here. The number of solenoid valves 18 can be increased or decreased according to the actual operation needs.
[0033] It should be understood that expressions such as "comprising" and "may include" as used in this application indicate the existence of the disclosed functions, operations, or constituent elements, and do not limit one or more additional functions, operations, and constituent elements. In this application, terms such as "comprising" and / or "having" may be interpreted as indicating a specific characteristic, number, operation, constituent element, component, or combination thereof, but should not be interpreted as excluding the existence or possibility of adding one or more other characteristics, numbers, operations, constituent elements, components, or combinations thereof.
[0034] It should be understood that the terms “center,” “upper,” “lower,” “front,” “rear,” “left,” “right,” “vertical,” “horizontal,” “inner,” “outer,” “clockwise,” “counterclockwise,” “axial,” “radial,” and “circumferential” indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.
[0035] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.
[0036] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0037] Those skilled in the art will readily understand that the above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. An electrolytic fluorination system, characterized in that, It includes an electrolysis unit (1) and a cooling unit (2), wherein: The electrolysis device (1) includes an electrolytic cell (12), a raw material storage tank (15), a product collection tank (16), and a condenser (17). The outlet of the raw material storage tank (15) is connected to the inlet of the electrolytic cell (12), the outlet of the electrolytic cell (12) is connected to the inlet of the condenser (17), and the outlet of the condenser (17) is connected to the inlet of the product collection tank (16). The cooling device (2) includes a water cooling head (21) and a chiller (22). The outlet of the chiller (22) is connected to the inlet of the condenser (17). The water cooling head (21) is fixedly connected to the electrolytic cell (12). The inlet of the water cooling head (21) is connected to the outlet of the condenser (17). The outlet of the water cooling head (21) is connected to the inlet of the chiller (22).
2. The electrolytic fluorination system as described in claim 1, characterized in that, The electrolytic cell (12) includes a cell body (121), a cell cover (122), an anode plate (123), and a sealing ring (124). The anode plate (123) is fixedly installed inside the cell body (121). The inlet and outlet of the electrolytic cell (12) are both located on the cell body (121). The cell cover (122) is placed on the top of the cell body (121). The sealing ring (124) is located between the cell body (121) and the cell cover (122).
3. The electrolytic fluorination system as described in claim 2, characterized in that, The electrolytic cell (12) further includes an anode terminal (125) and a cathode terminal (126). The anode terminal (125) passes through the cell cover (122) and is connected to the anode plate (123). An insulating sleeve (127) is provided between the anode terminal (125) and the cell cover (122). The cathode terminal (126) is fixedly connected to the cell cover (122). The electrolytic device (1) further includes a power supply (11) that is electrically connected to the anode terminal (125) and the cathode terminal (126) respectively.
4. The electrolytic fluorination system as described in claim 1, characterized in that, The condenser (17) includes a first space with a water inlet and a water outlet and a second space with a feed inlet and a discharge outlet. The first space covers the outside of the second space and the first space and the second space are separated from each other.
5. The electrolytic fluorination system as described in claim 4, characterized in that, Temperature sensors are installed in both the first space and the electrolytic cell (12).
6. The electrolytic fluorination system as described in claim 4, characterized in that, The condenser (17) has an exhaust port that communicates with the second space.
7. The electrolytic fluorination system as described in claim 1, characterized in that, The electrolysis device (1) also includes an electrolyte circulation pump (13), and the raw material storage tank (15) and the electrolysis cell (12) are connected by the electrolyte circulation pump (13).
8. The electrolytic fluorination system as described in claim 1, characterized in that, The cooling device (2) also includes a booster pump (23), and the refrigerator (22) and the condenser (17) are connected through the booster pump (23).
9. The electrolytic fluorination system as described in claim 8, characterized in that, The condenser (17) is located at the highest point of the electrolytic fluorination system.
10. An electrolytic fluorination system according to any one of claims 1-9, characterized in that, The electrolysis device (1) further includes a gas injection mechanism for injecting inert gas into the electrolysis cell (12).