Reaction kettle for synthesizing diethyl n-octyl phosphonate

Abstract

The utility model discloses a reaction kettle for synthesizing diethyl n-octylphosphonate, and relates to the field of chemical equipment. The reaction kettle for synthesis of diethyl n-octylphosphonate comprises an infrared heating kettle and a split kettle cover, and the split kettle cover comprises a top cover, a connecting flange, a connecting pipe, an infrared heating pipe and a wedge-shaped bolt. According to the reaction kettle for synthesizing diethyl n-octylphosphonate, various connecting pipes for gas-liquid circulation are fixedly arranged in the connecting flange in a penetrating manner, meanwhile, a first sealing ring is mounted between a sealing opening and the connecting flange, and a second sealing ring is arranged between the top of the connecting flange and the top cover; the top cover is fixed in the sealing opening through the wedge-shaped bolt, so that the top cover and the connecting flange are fixed at the top of the kettle body, and the top cover can be taken down without disassembling various connecting pipes during use, so that the use is convenient.

Description

Technical Field

[0001] This utility model relates to the field of chemical equipment technology, specifically to a reaction vessel for the synthesis of diethyl n-octylphosphonate. Background Technology

[0002] In the synthesis of diethyl n-octylphosphonate, bromooctane and triethyl phosphite are added to a reaction vessel, and the mixture is heated to reflux. Bromoethane is then slowly distilled off. The temperature is raised to 190-200℃ and held for 5 hours. During this time, the generated bromoethane is slowly distilled off. When the bromooctane content is below 1%, the reaction ends, and the crude product is obtained. This process is usually completed in an infrared-heated reaction vessel.

[0003] Existing infrared-heated reactors typically integrate various gas-liquid inlet and outlet pipelines onto the reactor lid. This significantly affects the opening and closing of the lid during actual use, requiring the removal of all pipeline connections from the external environment before the lid can be opened, which is very cumbersome. To address this issue, a reactor for the synthesis of diethyl n-octylphosphonate is provided to solve the above problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a reaction vessel for the synthesis of diethyl octylphosphonate. It solves the problem that existing infrared-heated reaction vessels typically integrate various gas-liquid inlet and outlet pipelines onto the vessel lid, which significantly affects the opening and closing of the lid during actual use. This requires disassembling all pipelines and external connections before the lid can be opened, which is very troublesome.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a reaction vessel for the synthesis of diethyl octylphosphonate, comprising an infrared heating vessel and a split-type vessel cover installed on the top of the infrared heating vessel, wherein a control switch box is provided on one side of the infrared heating vessel, and the split-type vessel cover includes;

[0006] Top cover;

[0007] A connecting flange is movably located at the bottom of the top cover;

[0008] The connecting pipe is fixedly installed through the connecting flange;

[0009] An infrared heating element is fixedly installed through the top cover.

[0010] A wedge-shaped pin is movably disposed in the bottom side wall of the top cover, and the wedge-shaped pin is movably connected to the infrared heating vessel.

[0011] Preferably, the infrared heating vessel includes;

[0012] The body of the pot;

[0013] The sealing port is integrally formed on the top of the vessel body;

[0014] The first sealing ring is installed between the sealing port and the connecting flange.

[0015] Preferably, a positioning shaft is fixedly provided at the bottom of the connecting flange, and a positioning hole is provided at the top of the sealing port, with the positioning shaft movably inserted into the positioning hole.

[0016] Preferably, a fixing groove is provided on the inner sidewall of the sealing port, and the wedge-shaped pin is movably inserted into the fixing groove.

[0017] Preferably, a second sealing ring is provided between the top of the connecting flange and the top cover.

[0018] Preferably, a positioning part is integrally formed on the outer side of the sealing opening, and a positioning strip is integrally formed on the side of the top cover, the positioning strip being movably inserted into the positioning part.

[0019] Preferably, the top cover is provided with a handle in the center of the rotary seal, the inner bottom of the handle is threaded with a threaded post, the bottom end of the threaded post is fixedly connected with a conical top block, and the outer wall of the conical top block abuts against the inner end of the wedge-shaped pin.

[0020] Preferably, a positioning shaft is fixedly provided at the top of the conical top block, and a return spring is provided at the bottom of the wedge-shaped pin.

[0021] This utility model discloses a reaction vessel for the synthesis of diethyl octylphosphonate, which has the following advantages: by fixing various connecting pipes for gas-liquid flow through the connecting flange, and installing a first sealing ring between the sealing port and the connecting flange, and setting a second sealing ring between the top of the connecting flange and the top cover, the top cover is fixed in the sealing port by a wedge-shaped pin, thereby fixing the top cover and the connecting flange to the top of the vessel body. During use, the top cover can be removed without disassembling various connecting pipes, which is convenient for use. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the overall outer surface structure of this utility model;

[0024] Figure 2 This is an exploded view of the overall structure of this utility model;

[0025] Figure 3 This is an exploded view of the split-type kettle lid structure of this utility model;

[0026] Figure 4 This is a cross-sectional view of the internal structure of the top cover of this utility model.

[0027] In the diagram: 1. Infrared heating vessel; 11. Vessel body; 12. Sealing port; 13. First sealing ring; 14. Positioning part; 15. Fixing groove; 16. Positioning hole; 2. Control switch box; 3. Split-type vessel cover; 31. Top cover; 32. Connecting flange; 33. Second sealing ring; 34. Connecting pipe; 35. Infrared heating tube; 36. Handle; 37. Conical top block; 38. Wedge pin; 39. Return spring; 310. Positioning strip; 311. Positioning shaft; 312. Threaded column; 313. Limiting shaft. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model are described clearly and completely. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0029] This application provides a reaction vessel for the synthesis of diethyl octylphosphonate, which solves the problem of existing infrared-heated reaction vessels, which typically integrate various gas-liquid inlet and outlet pipelines onto the vessel lid. This significantly affects the opening and closing of the lid during actual use, requiring the removal of all pipelines from external connections before the lid can be opened, which is very troublesome.

[0030] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0031] This utility model discloses a reaction vessel for the synthesis of diethyl n-octylphosphonate.

[0032] Example 1

[0033] According to the appendix Figure 1-4 As shown, it includes an infrared heating vessel 1 and a split-type vessel cover 3 installed on the top of the infrared heating vessel 1. A control switch box 2 is provided on one side of the infrared heating vessel 1, and the split-type vessel cover 3 includes;

[0034] Top cover 31;

[0035] The connecting flange 32 is movably located at the bottom of the top cover 31;

[0036] The connecting pipe 34 is fixedly installed through the connecting flange 32;

[0037] An infrared heating tube 35 is fixedly installed in the top cover 31;

[0038] A wedge-shaped pin 38 is movably disposed in the bottom side wall of the top cover 31, and the wedge-shaped pin 38 is movably inserted into the infrared heating vessel 1.

[0039] Infrared heating vessel 1 includes;

[0040] 11 for the body of the pot;

[0041] The sealing port 12 is integrally formed on the top of the vessel body 11;

[0042] The first sealing ring 13 is installed between the sealing port 12 and the connecting flange 32.

[0043] A positioning shaft 311 is fixedly installed at the bottom of the connecting flange 32, and a positioning hole 16 is opened at the top of the sealing port 12. The positioning shaft 311 is movably inserted into the positioning hole 16. A positioning part 14 is integrally formed on the outer side of the sealing port 12, and a positioning strip 310 is integrally formed on the side of the top cover 31. The positioning strip 310 is movably inserted into the positioning part 14. A fixing groove 15 is opened on the inner side wall of the sealing port 12, and a wedge-shaped pin 38 is movably inserted into the fixing groove 15. Through the cooperation between the positioning shaft 311 and the positioning hole 16, the positions of multiple connecting pipes 34 on the connecting flange 32 are fixed. At the same time, by utilizing the cooperation between the positioning strip 310 and the positioning part 14, the wedge-shaped pin 38 can be aligned with the fixing groove 15 for convenient and quick positioning.

[0044] A second sealing ring 33 is provided between the top of the connecting flange 32 and the top cover 31.

[0045] In this embodiment, the device fixes various connecting pipes 34 for gas-liquid flow through the connecting flange 32, and installs a first sealing ring 13 between the sealing port 12 and the connecting flange 32. A second sealing ring 33 is provided between the top of the connecting flange 32 and the top cover 31. The top cover 31 is fixed in the sealing port 12 by a wedge-shaped pin 38, thereby fixing the top cover 31 and the connecting flange 32 to the top of the vessel body 11. During use, the top cover 31 can be removed without disassembling the various connecting pipes 34, which is convenient for use.

[0046] Example 2

[0047] According to the appendix Figure 1-4 As shown, more specifically, based on Embodiment 1, the top cover 31 is provided with a handle 36 in the middle of the rotary seal. The inner bottom of the handle 36 is threadedly connected to a threaded post 312. The bottom end of the threaded post 312 is fixedly connected to a conical top block 37. The outer wall of the conical top block 37 abuts against the inner end of the wedge-shaped pin 38.

[0048] A limit shaft 313 is fixedly installed at the top of the conical top block 37, and a return spring 39 is installed at the bottom of the wedge-shaped pin 38.

[0049] When the device is fixed, the top cover 31 is positioned by movably inserting the positioning strip 310 into the positioning part 14, so that the wedge-shaped pins 38 are facing the fixing groove 15. At this time, by rotating the handle 36 clockwise, the threaded column 312 drives the conical top block 37 to move downward, thereby pushing multiple wedge-shaped pins 38 into the fixing groove 15. As the wedge-shaped pins 38 continue to go deeper, the top cover 31 is pressed downward, thereby ensuring the sealing effect between the vessel body 11, the connecting flange 32 and the top cover 31.

[0050] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A reaction kettle for synthesizing diethyl n-octylphosphonate, comprising an infrared heating kettle (1) and a split kettle cover (3) installed on the top of the infrared heating kettle (1), and a control switch box (2) is arranged on one side of the infrared heating kettle (1), characterized in that, The split kettle cover (3) comprises; Top cover (31); Connecting flange (32) is movably arranged at the bottom of the top cover (31); Connecting pipe (34) is fixedly arranged in the connecting flange (32); Infrared heating tube (35) is fixedly arranged in the top cover (31); The wedge-shaped bolt (38) is movably arranged in the side wall of the bottom end of the top cover (31), and the wedge-shaped bolt (38) is movably connected with the infrared heating kettle (1).

2. The reaction vessel for the synthesis of diethyl n-octylphosphonate according to claim 1, characterized in that: The infrared heating kettle (1) comprises: Kettle body (11); Sealing port (12) is integrally formed on the top of the kettle body (11); The first sealing ring (13) is installed between the sealing port (12) and the connecting flange (32).

3. The reaction vessel for the synthesis of diethyl n-octylphosphonate according to claim 2, characterized in that: The bottom of the connecting flange (32) is fixedly provided with a positioning shaft (311), and the top of the sealing port (12) is provided with a positioning hole (16), and the positioning shaft (311) is movably inserted into the positioning hole (16).

4. The reaction vessel for the synthesis of diethyl n-octylphosphonate according to claim 2, characterized in that: A fixed groove (15) is formed in the inner side wall of the sealing port (12), and the wedge-shaped bolt (38) is movably inserted into the fixed groove (15).

5. The reaction vessel for the synthesis of diethyl n-octylphosphonate according to claim 1, characterized in that: The top of the connecting flange (32) and the top cover (31) are provided with a second sealing ring (33).

6. The reaction vessel for the synthesis of diethyl n-octylphosphonate according to claim 2, characterized in that: The outer side of the sealing port (12) is integrally formed with a positioning part (14), and the side surface of the top cover (31) is integrally formed with a positioning strip (310), and the positioning strip (310) is movably inserted into the positioning part (14).

7. The reaction vessel for the synthesis of diethyl n-octylphosphonate according to claim 1, characterized by the fact that: The middle part of the top cover (31) is rotatably sealed with a handle (36), the inner bottom of the handle (36) is threadedly connected with a threaded column (312), the bottom end of the threaded column (312) is fixedly connected with a conical top block (37), and the outer wall of the conical top block (37) abuts against the inner end of the wedge-shaped bolt (38).

8. The reaction vessel for the synthesis of diethyl n-octylphosphonate according to claim 7, characterized by the fact that: The top of the conical top block (37) is fixedly provided with a limiting shaft (313), and the bottom of the wedge-shaped bolt (38) is provided with a reset spring (39).

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