Reactor for synthesizing 2, 6-diisopropylaniline

Abstract

The utility model belongs to the technical field of 2, 6-diisopropylaniline production, and particularly relates to a reactor for synthesizing 2, 6-diisopropylaniline, which comprises a high-pressure reaction kettle main body, and a stirring piece, a heater and an air pressure regulating mechanism which are fixedly connected onto the high-pressure reaction kettle main body, the air pressure adjusting mechanism comprises an additional container fixedly connected to the upper side of the high-pressure reaction kettle body, an electric push rod is fixedly connected to the upper side of the additional container, an air pushing plate located in the additional container is fixedly connected to the output end, located on the lower side, of the electric push rod, and a sealing ring is fixedly connected to the peripheral side face of the air pushing plate. An annular cavity is formed in the sealing ring, and the additional container is fixedly connected with a medium filling mechanism communicated with the annular cavity. According to the high-pressure reaction kettle disclosed by the utility model, the temperature fluctuation phenomenon generated when the pressure inside the high-pressure reaction kettle main body is increased can be effectively reduced, and the influence caused by the temperature fluctuation when the 2, 6-diisopropylaniline is synthesized is further reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of 2,6-diisopropylaniline production, and particularly relates to a reactor for synthesizing 2,6-diisopropylaniline. Background Art

[0002] 2.6 Diisopropylaniline, as an important chemical intermediate, has a wide range of applications in pharmaceuticals, pesticides, dyes, and other fields. Its synthesis process typically requires an autoclave to provide suitable reaction conditions. However, regulating the pressure inside the autoclave often presents numerous challenges in traditional synthesis methods.

[0003] In existing high-pressure reactors, pressure is usually adjusted by injecting external gas into the reactor. Although this method can achieve pressure changes to a certain extent, it also has obvious disadvantages.

[0004] When low-temperature air from the outside enters the main body of the autoclave, it comes into contact with the high-temperature air inside. Due to the large temperature difference, the low-temperature air will quickly cool the high-temperature air, causing temperature fluctuations inside the autoclave.

[0005] This temperature fluctuation has a serious impact on the synthesis of 2,6-diisopropylaniline. Temperature instability can affect reaction rate, product selectivity, and product quality, and may even trigger side reactions, reducing synthesis efficiency. Utility Model Content

[0006] The purpose of the utility model is to provide a reactor for synthesizing 2,6-diisopropylaniline, which can effectively reduce the temperature fluctuation phenomenon caused by increasing the pressure inside the high-pressure reactor body, and further reduce the impact of temperature fluctuation during the synthesis of 2,6-diisopropylaniline.

[0007] The technical solutions adopted by this utility model are as follows:

[0008] A reactor for synthesizing 2.6 diisopropylaniline, comprising a high-pressure reactor body, a stirring member, a heater, and an air pressure regulating mechanism fixedly connected to the high-pressure reactor body, characterized in that the air pressure regulating mechanism comprises an additional container fixedly connected to the upper side of the high-pressure reactor body, an electric push rod fixedly connected to the upper side of the additional container, and an output end of the electric push rod located at the lower side is fixedly connected to an air push plate located inside the additional container.

[0009] Furthermore, a sealing ring is fixedly connected to the peripheral side surface of the push plate, an annular cavity is opened inside the sealing ring, and a medium filling mechanism connected to the annular cavity is fixedly connected to the additional container.

[0010] Furthermore, a ring-shaped groove is provided on the peripheral side surface of the air pushing plate, and the sealing ring is fixedly connected to the inside of the ring-shaped groove.

[0011] Furthermore, the filling medium is liquid, and the medium filling mechanism includes a delivery pump and a liquid tank. The delivery pump is fixedly connected to the upper side of the additional container, and the liquid tank is fixedly connected to the outside of the additional container. The output end of the delivery pump is fixedly connected to the second delivery pipe connected to the annular cavity, and the input end of the delivery pump is fixedly connected to the first delivery pipe connected to the liquid tank.

[0012] Furthermore, a lower cover plate is fixedly connected to the lower side of the stirring member, a hose is fixedly connected to the lower end of the lower cover plate, a connecting pipe head is fixedly connected to the lower end of the hose, and a vertical moving mechanism connected to the connecting pipe head is fixedly connected to the main body of the high-pressure reactor.

[0013] Furthermore, the vertical movement mechanism includes a servo motor and a vertical guide rail, the servo motor is fixedly connected to the upper side of the high-pressure reactor body, the vertical guide rail is fixedly connected to the inner wall of the high-pressure reactor body, the connecting pipe head is vertically slidably connected to the vertical guide rail, and the output end of the servo motor is fixedly connected to a threaded rod threadedly connected to the connecting pipe head.

[0014] The technical effects achieved by this utility model are:

[0015] The utility model provides a reactor for synthesizing 2.6 diisopropylaniline, which can change the internal pressure of a high-pressure reactor body only by changing the spatial dimensions. There is no need to input external gas into the interior of the high-pressure reactor body, thereby reducing the phenomenon of low-temperature air from the outside entering the interior of the high-pressure reactor body and cooling the high-temperature air inside the high-pressure reactor body when it contacts the high-temperature air inside the high-pressure reactor body. This effectively reduces the temperature fluctuation phenomenon caused by increasing the pressure inside the high-pressure reactor body, and further reduces the impact of temperature fluctuation on the synthesis of 2.6 diisopropylaniline. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural diagram of the utility model;

[0017] Figure 2 It is a schematic diagram of the cutaway structure of the utility model;

[0018] Figure 3 This is a schematic cross-sectional view of the air pressure regulating mechanism of the utility model;

[0019] Figure 4 It is a cut-away side view of the additional container of the utility model.

[0020] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0021] 1. High-pressure reactor body; 2. Stirring element; 3. Additional container; 4. Electric push rod; 5. Push plate; 6. Annular groove; 7. Sealing ring; 8. Annular cavity; 9. Delivery pump; 10. Liquid tank; 11. First delivery pipe; 12. Second delivery pipe; 13. Servo motor; 14. Vertical guide rail; 15. Connecting pipe head; 16. Hose; 17. Threaded rod; 18. Lower cover. DETAILED DESCRIPTION

[0022] In order to make the purpose and advantages of the present invention more clearly understood, the present invention is described in detail below with reference to the following embodiments. It should be understood that the following text is only used to describe one or several specific embodiments of the present invention and does not strictly limit the scope of protection of the present invention.

[0023] like Figure 1-4 As shown, a reactor for synthesizing 2.6 diisopropylaniline comprises a high-pressure reactor body 1, a stirring member 2 fixedly connected to the high-pressure reactor body 1, a heater and a gas pressure regulating mechanism;

[0024] After the raw materials aniline and aluminum foil of 2.6 diisopropylaniline enter the interior of the autoclave body 1, the heater is started to heat the raw materials inside the autoclave body 1, and then the stirring element 2 is started to stir the raw materials. During the stirring and heating process, the air pressure regulating mechanism is started to regulate the pressure inside the autoclave body 1;

[0025] like Figure 1-2 As shown, the core of the present technical solution lies in the improvement of the air pressure regulating mechanism, which is specifically that the air pressure regulating mechanism includes an additional container 3 fixedly connected to the upper side of the high-pressure reactor body 1, the upper side of the additional container 3 is fixedly connected to an electric push rod 4, and the output end of the electric push rod 4 located at the lower side is fixedly connected to a push plate 5 located inside the additional container 3. At this time, by starting the additional container 3 to drive the push plate 5 to move, the combined space size of the additional container 3 and the high-pressure reactor body 1 can be adjusted. When the combined space size is increased, the air pressure inside the high-pressure reactor body 1 is reduced, and when the combined space size is reduced When the pressure inside the autoclave body 1 increases, the pressure inside the autoclave body 1 can be changed only by changing the spatial dimensions, without the need to input external gas into the autoclave body 1. This reduces the phenomenon of low-temperature air from the outside entering the autoclave body 1 and cooling the high-temperature air inside the autoclave body 1 when it contacts the high-temperature air inside the autoclave body 1, thereby effectively reducing the temperature fluctuation phenomenon caused by increasing the pressure inside the autoclave body 1, and further reducing the influence of temperature fluctuation on the synthesis of 2.6 diisopropylaniline.

[0026] like Figure 2-4 As shown, a circle of sealing ring 7 is fixedly connected to the peripheral side surface of the push plate 5. The material of the sealing ring 7 is preferably rubber. An annular cavity 8 can be opened inside the sealing ring 7. A medium filling mechanism connected to the annular cavity 8 can be fixedly connected to the additional container 3. At this time, after the push plate 5 has completed its movement, the medium filling mechanism is started to input the filling medium into the annular cavity 8, so that the sealing ring 7 can be expanded to fill the gap between the push plate 5 and the inner wall of the additional container 3, thereby ensuring the sealing between the additional container 3 and the push plate 5. When the push plate 5 moves, the delivery pump 9 is stopped from inputting the medium inside the annular cavity 8, and the filling medium inside the annular cavity 8 can be squeezed out by utilizing the material reset performance of the sealing ring 7, thereby reducing the volume of the sealing ring 7 and reducing the wear of the sealing ring 7 when the push plate 5 moves.

[0027] At the same time, a circle of annular groove 6 is opened on the peripheral side of the push plate 5, and the sealing ring 7 is fixedly connected to the inside of the annular groove 6, so that the sealing ring 7 can be retracted to the inside of the annular groove 6, further reducing the wear of the sealing ring 7 when the push plate 5 moves.

[0028] like Figure 2-4 As shown, the filling medium can be gas or liquid, and liquid is preferred in the present technical solution. Specifically, the medium filling mechanism includes a delivery pump 9 and a liquid tank 10. The delivery pump 9 is fixedly connected to the upper side of the additional container 3, and the liquid tank 10 is fixedly connected to the outer side of the additional container 3. The output end of the delivery pump 9 is fixedly connected to a second delivery pipe 12 connected to the annular cavity 8, and the input end of the delivery pump 9 is fixedly connected to a first delivery pipe 11 connected to the liquid tank 10. The first delivery pipe 11 extends to the lower end of the liquid tank 10. At this time, by starting the delivery pump 9, the liquid inside the liquid tank 10 can be input into the inside of the annular cavity 8.

[0029] like Figure 2-4 As shown, the lower side of the stirring member 2 can be fixedly connected to a lower cover plate 18, the lower end of the lower cover plate 18 is fixedly connected to a hose 16, the lower end of the hose 16 is fixedly connected to a connecting pipe head 15, and the high-pressure reactor body 1 is fixedly connected to a vertical moving mechanism connected to the connecting pipe head 15. At this time, by starting the vertical moving mechanism to drive the connecting pipe head 15 to move, the position of the air inlet or air outlet inside the high-pressure reactor body 1 is adjusted during the pressure regulation process, so that the air intake or exhaust inside the additional container 3 is more uniform, further reducing the temperature fluctuation caused by concentrated air intake and exhaust.

[0030] like Figure 2-3As shown, the vertical movement mechanism includes a servo motor 13 and a vertical guide rail 14. The servo motor 13 is fixedly connected to the upper side of the high-pressure reactor body 1, and the vertical guide rail 14 is fixedly connected to the inner wall of the high-pressure reactor body 1. The connecting pipe head 15 is vertically slidably connected to the vertical guide rail 14. The output end of the servo motor 13 is fixedly connected to a threaded rod 17 threadedly connected to the connecting pipe head 15. At this time, by starting the servo motor 13 to drive the threaded rod 17 to rotate, the connecting pipe head 15 can be driven to move vertically, and the position of the connecting pipe head 15 is locked after the vertical movement is completed.

[0031] The working principle of the utility model is as follows: after the raw materials aniline and aluminum foil of 2.6 diisopropylaniline enter the interior of the high-pressure reactor body 1, the heater is started to heat the raw materials inside the high-pressure reactor body 1, and then the stirring element 2 is started to stir the raw materials. During the stirring and heating process, the air pressure regulating mechanism is started to regulate the pressure inside the high-pressure reactor body 1;

[0032] During the pressure regulation process, the combined space size of the combined additional container 3 and the high-pressure reactor body 1 can be adjusted by starting the additional container 3 to drive the push plate 5 to move. When the combined space size is increased, the air pressure inside the high-pressure reactor body 1 decreases, and when the combined space size is reduced, the air pressure inside the high-pressure reactor body 1 increases. Therefore, the change in the internal pressure of the high-pressure reactor body 1 can be completed only by changing the space size, and there is no need to input external gas into the interior of the high-pressure reactor body 1, thereby reducing the phenomenon of low-temperature air from the outside entering the interior of the high-pressure reactor body 1 and cooling the high-temperature air inside the high-pressure reactor body 1 when it contacts the high-temperature air inside the high-pressure reactor body 1, thereby effectively reducing the temperature fluctuation phenomenon caused by increasing the pressure inside the high-pressure reactor body 1, and further reducing the impact of temperature fluctuation during the synthesis of 2.6 diisopropylaniline.

[0033] The above description is merely a preferred embodiment of the present invention. It should be noted that those skilled in the art may make various improvements and modifications without departing from the principles of the present invention, and such improvements and modifications should be considered within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described or explained in this invention shall, unless otherwise specified or limited, be implemented in accordance with conventional means in the art.

Claims

1. A reactor for synthesizing 2,6-diisopropylaniline, comprising a high-pressure reactor body (1), a stirring member (2) fixedly connected to the high-pressure reactor body (1), a heater, and a gas pressure regulating mechanism, characterized in that: The air pressure regulating mechanism comprises an additional container (3) fixedly connected to the upper side of the high-pressure reactor body (1); an electric push rod (4) is fixedly connected to the upper side of the additional container (3); and an output end of the electric push rod (4) located at the lower side is fixedly connected to an air push plate (5) located inside the additional container (3).

2. A reactor for synthesizing 2,6 diisopropylaniline according to claim 1, characterized in that: A sealing ring (7) is fixedly connected to the peripheral side of the push plate (5), and an annular cavity (8) is opened inside the sealing ring (7). A medium filling mechanism connected to the annular cavity (8) is fixedly connected to the additional container (3), and the medium filling mechanism includes a delivery pump (9) and a liquid tank (10). The delivery pump (9) is fixedly connected to the upper side of the additional container (3), and the liquid tank (10) is fixedly connected to the outside of the additional container (3). The output end of the delivery pump (9) is fixedly connected to a second delivery pipe (12) connected to the annular cavity (8), and the input end of the delivery pump (9) is fixedly connected to a first delivery pipe (11) connected to the liquid tank (10).

3. A reactor for synthesizing 2,6 diisopropylaniline according to claim 2, characterized in that: A ring-shaped groove (6) is provided on the peripheral side surface of the air pushing plate (5), and the sealing ring (7) is fixedly connected to the inside of the ring-shaped groove (6).

4. A reactor for synthesizing 2,6 diisopropylaniline according to any one of claims 1 to 3, characterized in that: The lower side of the stirring member (2) is fixedly connected to a lower cover plate (18), the lower end of the lower cover plate (18) is fixedly connected to a hose (16), the lower end of the hose (16) is fixedly connected to a connecting pipe head (15), and the high-pressure reactor body (1) is fixedly connected to a vertical moving mechanism connected to the connecting pipe head (15).

5. A reactor for synthesizing 2,6 diisopropylaniline according to claim 4, characterized in that: The vertical movement mechanism comprises a servo motor (13) and a vertical guide rail (14); the servo motor (13) is fixedly connected to the upper side of the high-pressure reactor body (1); the vertical guide rail (14) is fixedly connected to the inner wall of the high-pressure reactor body (1); the connecting pipe head (15) is vertically slidably connected to the vertical guide rail (14); and the output end of the servo motor (13) is fixedly connected to a threaded rod (17) threadedly connected to the connecting pipe head (15).

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