A reaction device for synthesizing trichloromethanesulfonic acid

Abstract

The utility model relates to a kind of reaction device of synthetic trichloromethanesulfonic acid, belong to chemical equipment technical field. Including reactor, external light source. Reactor includes outer tube, inner tube, baffle, flange, gas-liquid flow divider. Outer tube front end is equipped with feed inlet, feed inlet is connected with each raw material storage tank and transfer tank by pipeline;Back end is equipped with discharge port, discharge port is connected with gas-liquid flow divider by pipeline;Gas-liquid flow divider gas outlet is connected with gas absorption tank by pipeline, liquid outlet is connected with transfer tank by pipeline;Flange is fixedly installed in the both ends of inner tube, and thermocouple is installed on flange. External light source is fixed above and below reactor respectively. The device is heated to reactor by external light source, accelerates reaction process. Interlock and the continuous feeding of material, efficient, intelligent production is realized. Simple structure, easy operation, high reaction efficiency, little environmental pollution, applicable to industrialized continuous production trichloromethanesulfonic acid.

Description

Technical Field

[0001] This utility model relates to a reaction apparatus for synthesizing trichloromethanesulfonic acid, belonging to the field of chemical equipment. Background Technology

[0002] Trichloromethanesulfonic acid is an important organic synthesis intermediate in chemical production and is widely used in pharmaceuticals, pesticides, dyes and other fields.

[0003] However, traditional methods for synthesizing trichloromethanesulfonic acid suffer from problems such as low reaction efficiency, low product purity, and severe environmental pollution. Therefore, developing a highly efficient and environmentally friendly tubular reactor for the continuous synthesis of trichloromethanesulfonic acid is of paramount importance. Summary of the Invention

[0004] To address the technical problems existing in the prior art, this invention provides a reaction apparatus for synthesizing trichloromethanesulfonic acid, realizing an efficient and continuous trichloromethanesulfonic acid synthesis process.

[0005] This invention relates to a reaction apparatus for synthesizing trichloromethanesulfonic acid, comprising a reactor and an external light source. The reactor includes an outer tube, an inner tube, baffles, a gas-liquid separator, and valves. The outer tube has an inlet at its front end and an outlet at its rear end. The inlet is connected to a raw material storage tank via pipeline a, which is connected in series with a three-way valve, a power pump, and a flow meter. The third port of the three-way valve is connected to a transfer tank via a pipeline. The outlet is connected to the inlet of the gas-liquid separator via pipeline b, which is connected in series with a valve and a transfer pump. Baffles are alternately fixedly installed on the outer side of the inner tube and the inner side of the outer tube. Flanges a and b are embedded at both ends of the inner tube and sealed with high-temperature gaskets. The reactor is made of transparent material, and external light sources are fixed above and below the reactor, at a distance of 5-10cm from the reactor.

[0006] According to the aforementioned reaction apparatus for synthesizing trichloromethanesulfonic acid, flange a is equipped with thermocouple sheath a and a heat transfer medium inlet, flange b is provided with heat transfer medium outlet and thermocouple sheath b, the thermocouple sheath extends into the inner tube, and thermocouples are installed in thermocouple sheath a and thermocouple sheath b.

[0007] According to the aforementioned reaction apparatus for synthesizing trichloromethanesulfonic acid, the gas-liquid separator has a gas outlet at the top, which is connected to a gas absorption tank via a pipeline; and a liquid outlet in the upper middle part, which is connected to a transfer tank via a pipeline.

[0008] According to the aforementioned reaction apparatus for synthesizing trichloromethanesulfonic acid, the outer tube is made of transparent plastic or quartz glass, and the inner tube is made of quartz glass, Hastelloy, or silicon carbide; the baffle plate is made of the same material as the pipe on its fixed side; and the flange is made of fluoroplastic or steel lined with fluoroplastic.

[0009] According to the aforementioned reaction apparatus for synthesizing trichloromethanesulfonic acid, two transfer tanks are arranged in parallel and connected to the product tanks via pipelines.

[0010] According to the aforementioned reaction apparatus for synthesizing trichloromethanesulfonic acid, the transparent plastic can be a tetrafluoroethylene-perfluoroalkoxy vinyl ether copolymer or a perfluoroethylene propylene copolymer.

[0011] According to the aforementioned reaction apparatus for synthesizing trichloromethanesulfonic acid, the thermocouple sheaths a and b are made of the same material as the inner tube.

[0012] According to the aforementioned reaction apparatus for synthesizing trichloromethanesulfonic acid, the inner tube has an inner diameter of 5-20 mm, the outer tube has an inner diameter 2-5 mm larger than the inner tube, the length-to-diameter ratio of the inner tube is 500-3000, and the length of the baffle is 30%-60% of the interval between the inner and outer tubes.

[0013] According to the aforementioned reaction apparatus for synthesizing trichloromethanesulfonic acid, the external light source is an ultraviolet lamp panel, with a length and width 3-5 cm greater than the reactor, a power of 10-100W, and a wavelength of 250-450nm.

[0014] The beneficial effects achieved by this application are as follows: This invention relates to a tubular reactor that, through a specially designed reactor combined with an external light source and a gas absorption tank, achieves the continuous and efficient synthesis of trichloromethanesulfonic acid. The design of the inner and outer tubes of the reactor, along with the placement of baffles, effectively improves the mixing effect and heat transfer efficiency of the reactants, thereby increasing the reaction rate and product purity. Simultaneously, the external light source further promotes the reaction, enhancing its efficiency. The gas absorption tank effectively absorbs harmful gases generated during the reaction, reducing environmental pollution.

[0015] This utility model's tubular reaction device also has advantages such as simple structure, convenient operation, and easy maintenance. The tight connections and good sealing between components ensure that materials will not leak during the reaction process, thus guaranteeing the safety and stability of production. Furthermore, the device can be flexibly adjusted according to production needs to adapt to different production scales and process requirements. Attached Figure Description

[0016] The figure shows a schematic diagram of a reaction apparatus for synthesizing trichloromethanesulfonic acid according to this utility model. Figure 1 This is a top view of the present invention; Figure 2 This is a side view of the present invention; Figure 3 This is a schematic diagram of part A of the top view of the present invention; Figure 4 This is a schematic diagram of part B of the top view of the present invention; Figure 5 This is a top view of part C of the present invention.

[0017] Figure reference numerals: 1. Reactor, 2. External light source, 3. Three-way valve, 4. Valve, 11. Outer pipe, 12. Inner pipe, 13. Baffle plate, 14. Flange a, 15. Flange b, 16. Gas-liquid separator, 111. Inlet, 112. Outlet, 141. Heat transfer medium inlet, 142. Thermocouple sheath a, 151. Heat transfer medium outlet, 152. Thermocouple sheath b, 161. Gas-liquid separator inlet, 162. Gas outlet, 163. Liquid outlet. Detailed Implementation

[0018] The specific details of this utility model are further described below: The technical solution adopted in this utility model is as follows: it includes a reactor 1 and an external light source 2. The reactor 1 includes an outer tube 11, an inner tube 12, a baffle plate 13, a gas-liquid separator 16, and related valves, etc.

[0019] The inner diameter of the reactor inner tube 12 is 5-20 mm, the inner diameter of the outer tube 11 is 2-5 mm larger than the inner diameter of the inner tube 12, and the length-to-diameter ratio of the inner tube 12 is 500~3000.

[0020] The outer pipe 11 has an inlet 111 at the front end and an outlet 112 at the rear end. The inlet 111 is connected to the raw material storage tank via pipeline a, and a three-way valve 3, a power pump and a flow meter are connected in series on pipeline a. The third port of the three-way valve 3 is connected to the transfer tank via pipeline. The outlet 112 is connected to the gas-liquid separator inlet 161 via pipeline b, and a valve 4 and a transfer pump are connected in series on pipeline b. Baffles 13 are alternately fixedly installed on the outside of the inner pipe 12 and the inside of the outer pipe 11. Flanges a14 and b15 are embedded at the left and right ends of the inner pipe 12 and sealed by high-temperature gaskets.

[0021] Specifically, two transfer tanks are arranged in parallel and connected to the product tanks via pipelines. The length of the baffle plate 13 is 30%-60% of the interval between the inner pipe 12 and the outer pipe 11.

[0022] Flange a14 is equipped with thermocouple sheath a142 and heat transfer medium inlet 141, and flange b15 is equipped with heat transfer medium outlet 151 and thermocouple sheath b152. The thermocouple sheath extends into the inner tube 12 and contains a thermocouple.

[0023] The gas-liquid separator 16 has a gas outlet 162 at the top, which is connected to the gas absorption tank via a pipeline; and a liquid outlet 163 in the upper middle part, which is connected to the transfer tank via a pipeline.

[0024] The outer tube 11 is made of transparent plastic or quartz glass. Further, the transparent plastic can be a tetrafluoroethylene-perfluoroalkoxy vinyl ether copolymer or a perfluoroethylene propylene copolymer. The inner tube 12 is made of quartz glass, Hastelloy, or silicon carbide. The baffle is made of the same material as the pipe on its fixed side. The flange is made of fluoroplastic or steel lined with fluoroplastic.

[0025] The thermocouple sheaths a142 and b152 are made of the same material as the inner tube.

[0026] The external light source 2 used in this device is an ultraviolet lamp panel, which is 3-5 cm longer and wider than reactor 1, with a power of 10-100W and a wavelength of 250-450nm. It is fixed above and below reactor 1, with a distance of 5-10 cm between them.

[0027] The three-way valves 3 and 4 of this device are automatically interlocked; when three-way valve 3 is opened, valve 4 automatically opens. The transfer pump and valves connected in series on the same pipeline are also interlocked; when a valve is opened, the transfer pump automatically starts.

[0028] The specific working process of this device is as follows: An appropriate amount of sodium hydroxide solution is added to the gas absorption tank for gas absorption. The heating switch for the heat transfer medium is turned on. After the heat transfer medium reaches the set temperature, the power pump for the heat transfer medium is turned on. The heat transfer medium enters the inner layer 12 of the reactor from the heat transfer medium inlet 141 and returns to the heat transfer medium heating device from the heat transfer medium outlet 151. Once the thermocouple displays the required experimental temperature, the external light source switch is turned on and the corresponding power and wavelength are adjusted. The three-way valve 3 is opened, and the raw materials methanesulfonic acid and chlorine enter the reactor outer pipe 11 through the three-way valve 3 and the flow meter. Simultaneously, valve 4 automatically opens, and the gas-liquid separator starts operating. The gas generated by the reaction enters the gas absorption tank through the gas outlet 162, and the liquid enters the transfer tank 1 through the liquid outlet. After the liquid level in the transfer tank reaches the set level, the three-way valve 3 automatically switches to the third port, and the material begins to circulate and react. After the material reaction is qualified, it enters the product storage tank. The three-way valve switches to the first port, and the raw materials methanesulfonic acid and chlorine enter the reactor outer pipe 11 through the three-way valve 3 and the flow meter. The liquid enters the transfer tank 2 through the liquid outlet. When the reaction is stopped, close the three-way valve 3 and vent the material in the reactor.

[0029] This invention relates to a tubular reactor that, through a specially designed reactor combined with an external light source and a gas absorption tank, achieves the continuous and efficient synthesis of trichloromethanesulfonic acid. The design of the inner and outer tubes of the reactor, along with the placement of baffles, effectively improves the mixing effect and heat transfer efficiency of the reactants, thereby increasing the reaction rate and product purity. Simultaneously, the external light source further promotes the reaction, enhancing its efficiency. The gas absorption tank effectively absorbs harmful gases generated during the reaction, reducing environmental pollution.

[0030] This utility model's tubular reaction device also has advantages such as simple structure, convenient operation, and easy maintenance. The tight connections and good sealing between components ensure that materials will not leak during the reaction process, thus guaranteeing the safety and stability of production. Furthermore, the device can be flexibly adjusted according to production needs to adapt to different production scales and process requirements.

Claims

1. A reaction apparatus for synthesizing trichloromethanesulfonic acid, characterized in that, include: Reactor (1), external light source (2), reactor (1) includes outer tube (11), inner tube (12), baffle plate (13), gas-liquid separator (16) and valves, The outer tube (11) has an inlet (111) at the front end and an outlet (112) at the rear end. The inlet (111) is connected to the raw material storage tank via pipeline a, and a three-way valve (3), a power pump and a flow meter are connected in series on pipeline a. The third port of the three-way valve (3) is connected to the transfer tank via pipeline. The outlet (112) is connected to the gas-liquid separator inlet (161) via pipeline b, and a valve (4) and a transfer pump are connected in series on pipeline b. Baffles (13) are alternately fixedly installed on the outside of the inner tube (12) and the inside of the outer tube (11). Flanges a (14) and b (15) are embedded at the left and right ends of the inner tube (12) and sealed by high-temperature gaskets. The reactor (1) is made of transparent material, and the external light source (2) is fixed above and below the reactor (1), with a distance of 5-10cm between it and the reactor (1).

2. The reaction apparatus for synthesizing trichloromethanesulfonic acid according to claim 1, characterized in that, The flange a (14) is equipped with a thermocouple sleeve a (142) and a heat transfer medium inlet (141), and the flange b (15) is provided with a heat transfer medium outlet (151) and a thermocouple sleeve b (152). The thermocouple sleeve extends into the inner tube (12), and thermocouples are installed in thermocouple sleeve a (142) and thermocouple sleeve b (152).

3. The reaction apparatus for synthesizing trichloromethanesulfonic acid according to claim 1, characterized in that, The gas-liquid separator (16) has a gas outlet (162) at the top, which is connected to the gas absorption tank via a pipeline; and a liquid outlet (163) in the upper middle part, which is connected to the transfer tank via a pipeline.

4. The reaction apparatus for synthesizing trichloromethanesulfonic acid according to claim 1, characterized in that, The outer tube (11) is made of transparent plastic or quartz glass, and the inner tube (12) is made of quartz glass, Hastelloy or silicon carbide; the baffle (13) is made of the same material as the pipe on its fixed side; the flange is made of fluoroplastic or steel lined with fluoroplastic.

5. The reaction apparatus for synthesizing trichloromethanesulfonic acid according to claim 3, characterized in that, Two transfer tanks are arranged in parallel and connected to the product tanks via pipelines.

6. The reaction apparatus for synthesizing trichloromethanesulfonic acid according to claim 4, characterized in that, Transparent plastics can be tetrafluoroethylene-perfluoroalkoxy vinyl ether copolymers or perfluoroethylene propylene copolymers.

7. The reaction apparatus for synthesizing trichloromethanesulfonic acid according to claim 2, characterized in that, The thermocouple sheaths a (142) and b (152) are made of the same material as the inner tube.

8. The reaction apparatus for synthesizing trichloromethanesulfonic acid according to claim 1, characterized in that, The inner diameter of the inner tube (12) is 5-20 mm, the inner diameter of the outer tube (11) is 2-5 mm larger than the inner diameter of the inner tube (12), the length-to-diameter ratio of the inner tube (12) is 500-3000, and the length of the baffle (13) is 30%-60% of the interval between the inner tube (12) and the outer tube (11).

9. The reaction apparatus for synthesizing trichloromethanesulfonic acid according to claim 1, characterized in that, The external light source (2) is an ultraviolet lamp plate, which is 3-5 cm longer and wider than the reactor (1), with a power of 10-100W and a wavelength of 250-450nm.

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