Equipment capable of adjusting polymerization reaction of different types of polycarbonate

Abstract

The utility model relates to the field of polycarbonate polymerization reaction, in particular to equipment capable of adjusting polymerization reaction of different types of polycarbonate, which adopts the technical scheme that the equipment comprises a reaction kettle shell, a plurality of layers of reaction platforms are arranged on the inner wall of the upper half part of the reaction kettle shell, and an atomization device is arranged on the top surface of the reaction kettle shell. The reaction kettle disclosed by the utility model has the beneficial effects that the reaction kettle shell is of a big-end-down structure, the same reaction monomers are fixedly placed in different layers in the reaction kettle shell through the multiple layers of reaction platforms, the interior of the reaction kettle shell is heated, and then a catalyst is sprayed from the top of the inner wall of the reaction kettle shell through the atomization device; according to the reaction kettle, the concentration of a catalyst in the reaction kettle shell is gradually changed according to different layers, so that reaction monomers in different layers are in contact with the catalysts with different concentrations, the effect of controlling the concentration variable of the catalyst in contact with a plurality of reaction monomers in a single reaction process is achieved, the experimental test efficiency is improved, and the waste of reaction materials is reduced.

Description

Technical Field

[0001] The utility model relates to the field of polycarbonate polymerization reaction, in particular to a device capable of adjusting polymerization reactions of different types of polycarbonate. Background Art

[0002] Polycarbonate is a tough thermoplastic resin, a high molecular polymer containing carbonate groups in the molecular chain. Its name also comes from the CO3 group inside it. According to the structure of the ester group, it can be divided into aliphatic, aromatic, aliphatic-aromatic and other types. Due to the special structure of polycarbonate, it has become the fastest growing general engineering plastic among the five major engineering plastics.

[0003] The polymerization reactions of different types of polycarbonates will differ to a certain extent, mainly depending on factors such as the monomers, catalysts, reaction conditions, etc. During the synthesis process, the concentration of the catalyst has a significant effect on the reaction. The catalyst plays a key role in promoting polymerization and controlling the reaction kinetics in this type of reaction.

[0004] The existing technology has the following deficiencies: different monomers can be used to react and synthesize polycarbonates with different properties, but in actual production, for different monomers, the optimal concentration of the catalyst used usually needs to be determined through experiments to ensure the optimal polymer performance and economic benefits. Traditional polycarbonate polymerization equipment needs to carry out multiple polymerization reactions and control the catalyst concentration variable during the reaction process to find the optimal concentration of the catalyst that is most suitable for the synthesis of a certain monomer reaction. This is time-consuming and labor-intensive, the experimental test efficiency is low, and it is easy to waste reaction materials.

[0005] Therefore, it is necessary to invent a device that can adjust the polymerization reaction of different types of polycarbonate. Utility Model Content

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a device capable of adjusting different types of polycarbonate polymerization reactions, comprising a reactor shell, support legs fixedly installed around the bottom surface of the reactor shell, a drain pipe fixedly installed in the center of the bottom surface of the reactor shell, a catalyst cabin fixedly installed at the lower end of the drain pipe, and a catalyst liquid injected into the catalyst cabin, the reactor shell is divided into two parts, the upper half of the reactor shell is a hexagonal hollow frustum structure with a small top and a large bottom, and the lower half of the reactor shell is a hexagonal hollow frustum structure with a large top and a small bottom, a multi-layer reaction platform is installed on the inner wall of the upper half of the reactor shell, reaction monomers can be placed on the multi-layer reaction platform, and an atomization device is provided on the top surface of the reactor shell, and the atomization device can spray the catalyst.

[0007] Preferably, the multi-layer reaction platform includes a first frame, which is fixedly mounted on the upper side of the inner wall of the upper half of the reactor shell, the first frame is a hexagonal frame structure, and upper support plates are fixedly mounted on six directions of the top surface of the first frame.

[0008] Preferably, the multi-layer reaction platform includes a second frame, which is fixedly mounted on the middle of the inner wall of the upper half of the reactor shell, and the second frame is a hexagonal frame structure, and middle-layer support plates are fixedly mounted on six directions of the top surface of the second frame.

[0009] Preferably, the multi-layer reaction platform includes a third frame, which is fixedly mounted on the lower side of the inner wall of the upper half of the reactor shell, and the third frame is a hexagonal frame structure, and lower support plates are fixedly mounted on six directions of the top surface of the third frame.

[0010] Preferably, the upper, middle and lower trays are each provided with a flap at one end close to the inner wall of the reactor shell, and several of the flaps are rotatably mounted on the outer wall of the reactor shell, and a handle is fixedly mounted on one side of the flap away from the upper, middle and lower trays.

[0011] Preferably, a fourth frame is fixedly mounted on the inner wall of the lower half of the reactor shell, and the fourth frame is a hexagonal frame structure.

[0012] Preferably, a heating column is fixedly installed in the middle of the top surface of the fourth frame, the heating column has a built-in heating wire, the heating column is a hexagonal column structure, and the heating column passes through the third frame, the second frame and the middle of the first frame upward in sequence.

[0013] Preferably, the atomization device includes an air pump, which is fixedly mounted on the top surface of the reactor shell, a nozzle is fixedly mounted on the lower end of the air pump, the nozzle penetrates downward through the top surface of the reactor shell, one side of the air pump is fixedly connected to a conduit, and the end of the conduit away from the air pump is inserted into the catalyst cabin.

[0014] The beneficial effects of the utility model are as follows: the shell of the reactor is in a structure that is small at the top and large at the bottom, and the same reaction monomers are fixedly placed in different layers in the shell of the reactor through a multi-layer reaction platform, the inside of the shell of the reactor is heated, and then the catalyst is sprayed from the top of the inner wall of the shell of the reactor through an atomizing device, so that the catalyst concentration in the shell of the reactor changes gradually according to the number of layers, so that the reaction monomers in different layers are in contact with catalysts of different concentrations, so as to achieve the effect of controlling the catalyst concentration variables contacted by multiple reaction monomers in a single reaction process, quickly test the most suitable catalyst concentration for a certain monomer, improve the experimental test efficiency, and reduce the waste of reaction materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1A front view of a device capable of adjusting polymerization reactions of different types of polycarbonate provided by the utility model;

[0016] Figure 2 A cross-sectional view of a reactor shell of a device capable of adjusting polymerization reactions of different types of polycarbonate provided by the utility model;

[0017] Figure 3 A schematic diagram of the internal structure of a reactor shell of a device capable of adjusting polymerization reactions of different types of polycarbonate provided by the utility model;

[0018] Figure 4 A cross-sectional view of a multi-layer reaction platform of a device capable of adjusting polymerization reactions of different types of polycarbonate provided by the utility model;

[0019] Figure 5 An exploded diagram of a multi-layer reaction platform of a device capable of adjusting polymerization reactions of different types of polycarbonate provided by the utility model;

[0020] Figure 6 The utility model provides a schematic diagram of a flip cover structure of a device capable of adjusting polymerization reactions of different types of polycarbonates.

[0021] In the figure: reactor shell 11, support legs 12, drain pipe 13, catalyst cabin 14, conduit 15, air pump 16, flip cover 17, handle 18, nozzle 19, first frame 21, upper support plate 22, second frame 23, middle support plate 24, third frame 25, lower support plate 26, heating column 27, fourth frame 28. DETAILED DESCRIPTION

[0022] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0023] Example 1

[0024] like Figure 1-Figure 3As shown, in the embodiment of the first aspect of the utility model, a device capable of adjusting different types of polycarbonate polymerization reactions comprises a reactor shell 11, support legs 12 are fixedly installed around the bottom surface of the reactor shell 11, a drain pipe 13 is fixedly installed in the center of the bottom surface of the reactor shell 11, a catalyst cabin 14 is fixedly installed at the lower end of the drain pipe 13, and a catalyst liquid is injected into the catalyst cabin 14, the reactor shell 11 is divided into two parts, the upper half of the reactor shell 11 is a hexagonal hollow frustum structure with a small top and a large bottom, and the lower half of the reactor shell 11 is a hexagonal hollow frustum structure with a large top and a small bottom, a multi-layer reaction platform is installed on the inner wall of the upper half of the reactor shell 11, and reaction monomers can be placed on the multi-layer reaction platform, and an atomization device is provided on the top surface of the reactor shell 11, and the atomization device can spray the catalyst.

[0025] In the above embodiment, it should be noted that the reactor shell 11 is a high temperature and corrosion resistant metal shell, and only a single type of catalyst can be injected into the catalyst cabin 14, but different batches of polycarbonate polymerization reactions can use different catalysts; the reactor shell 11 has a small upper and a large lower structure, and the same reaction monomers are fixedly placed in different layers of the reactor shell 11 through a multi-layer reaction platform, and the inside of the reactor shell 11 is heated, and then the catalyst is sprayed from the top of the inner wall of the reactor shell 11 through an atomizing device, so that the catalyst concentration in the reactor shell 11 is gradually changed according to the number of layers, so that the reaction monomers in different layers are exposed to catalysts of different concentrations. In order to achieve the effect of controlling the catalyst concentration variable contacted by multiple reaction monomers in a single reaction process, the most suitable catalyst concentration for a certain monomer can be quickly tested, the experimental test efficiency is improved, and the waste of reaction materials is reduced; in order to ensure the accuracy of the experiment, multiple reaction monomer samples are placed in the multi-layer reaction platform, and a single type of reaction monomer sample is placed in the multi-layer reaction platform in the same batch of polycarbonate polymerization reaction experiments. Of course, different types of reaction monomer samples can be replaced in different batches of polycarbonate polymerization reaction experiments. The utility model can test the most suitable catalyst concentrations for different reaction monomer samples by adjusting and replacing different types of reaction monomer samples.

[0026] Example 2

[0027] like Figure 2-Figure 6As shown, a device capable of adjusting different types of polycarbonate polymerization reactions includes all the contents of Example 1, in addition, the multi-layer reaction platform includes a first frame 21, the first frame 21 is fixedly mounted on the upper side of the inner wall of the upper half of the reactor shell 11, the first frame 21 is a hexagonal frame structure, and the upper support plates 22 are fixedly mounted on the six directions of the top surface of the first frame 21, the multi-layer reaction platform includes a second frame 23, the second frame 23 is fixedly mounted on the middle of the inner wall of the upper half of the reactor shell 11, the second frame 23 is a hexagonal frame structure, and the upper support plates 22 are fixedly mounted on the six directions of the top surface of the second frame 23 A middle-layer support plate 24 is installed, and the multi-layer reaction platform includes a third frame 25, which is fixedly installed on the lower side of the inner wall of the upper half of the reactor shell 11. The third frame 25 is a hexagonal frame structure, and lower-layer support plates 26 are fixedly installed in six directions on the top surface of the third frame 25. The upper-layer support plate 22, the middle-layer support plate 24 and the lower-layer support plate 26 are all provided with a flap 17 at one end close to the inner wall of the reactor shell 11, and several of the flaps 17 are rotatably installed on the outer wall of the reactor shell 11, and a handle 18 is fixedly installed on the side of the flap 17 away from the upper-layer support plate 22, the middle-layer support plate 24 and the lower-layer support plate 26.

[0028] In the above embodiment, it should be noted that the first frame 21, the second frame 23 and the third frame 25 are all made of high temperature resistant and corrosion resistant metal materials. The flip cover 17 is opened by turning the handle 18, and multiple reaction disks containing the same type and the same metered reaction monomer samples are inserted into the top surfaces of the upper tray 22, the middle tray 24 and the lower tray 26. Since the upper tray 22, the middle tray 24 and the lower tray 26 are located in different layers, the spatial volumes of the planes in which the upper tray 22, the middle tray 24 and the lower tray 26 are located are also different, and the distances between the upper tray 22, the middle tray 24 and the lower tray 26 and the atomizing device are also different. Therefore, when the atomizing device sprays out the atomized catalyst, the catalyst concentration at the upper tray 22 is the highest, the catalyst concentration at the middle tray 24 is the second, and the catalyst concentration at the lower tray 26 is the lowest, so as to achieve the effect of making the reaction monomers of different layers contact with catalysts of different concentrations.

[0029] Example 3

[0030] like Figure 2-Figure 5 As shown, a device capable of adjusting polymerization reactions of different types of polycarbonate includes all the contents of Example 2. In addition, a fourth frame 28 is fixedly installed on the inner wall of the lower half of the reactor shell 11, and the fourth frame 28 is a hexagonal frame structure. A heating column 27 is fixedly installed in the middle of the top surface of the fourth frame 28, and the heating column 27 has a built-in heating wire. The heating column 27 is a hexagonal prism structure, and the heating column 27 passes through the third frame 25, the second frame 23 and the middle of the first frame 21 upward in sequence.

[0031] In the above embodiment, it should be noted that the inner heating wire of the heating column 27 is activated to heat the inside of the reactor shell 11 from the center thereof to a temperature suitable for the reaction.

[0032] Example 4

[0033] like Figure 1-Figure 4 As shown, a device capable of regulating polymerization reactions of different types of polycarbonate includes all the contents of Example 1. In addition, the atomizing device includes an air pump 16, which is fixedly mounted on the top surface of the reactor shell 11, and a nozzle 19 is fixedly mounted on the lower end of the air pump 16. The nozzle 19 penetrates downwardly through the top surface of the reactor shell 11, and one side of the air pump 16 is fixedly connected to a conduit 15, and the end of the conduit 15 away from the air pump 16 is inserted into the catalyst cabin 14.

[0034] In the above embodiment, it should be noted that by starting the air pump 16, the catalyst liquid in the catalyst cabin 14 is drawn into the air pump 16 through the conduit 15, and then atomized and sprayed out through the nozzle 19, so as to achieve the effect of spraying atomized catalyst in the reactor shell 11. The excess atomized catalyst condenses into catalyst droplets when it contacts the inner wall of the reactor shell 11, and flows back into the catalyst cabin 14 along the inner wall of the reactor shell 11 and the drain pipe 13.

[0035] The use process of the utility model is as follows: a technician in the field turns the handle 18 to open the flip cover 17, inserts a plurality of reaction plates containing the same type and the same metered reaction monomer samples into the top surfaces of the upper support plate 22, the middle support plate 24 and the lower support plate 26, then starts the built-in heating wire of the heating column 27 to heat the inside of the reactor shell 11 from the center of the reactor shell 11 to a temperature suitable for the reaction, and finally starts the air pump 16 to draw the catalyst liquid in the catalyst cabin 14 into the air pump 16 through the conduit 15, and then sprays it out through the nozzle 19. The plate 24 and the lower pallet 26 are located at different layers, the spatial volumes of the planes where the upper pallet 22, the middle pallet 24 and the lower pallet 26 are located are also different, and the distances between the upper pallet 22, the middle pallet 24 and the lower pallet 26 and the atomizing device are also different. Therefore, when the atomizing device sprays out atomized catalyst, the catalyst concentration at the position of the upper pallet 22 is the highest, the catalyst concentration at the middle pallet 24 is the second, and the catalyst concentration at the lower pallet 26 is the lowest. By observing the reaction results on the upper pallet 22, the middle pallet 24 and the lower pallet 26, the most suitable catalyst concentration can be obtained.

[0036] The above is only a preferred embodiment of the utility model. Any person skilled in the art may modify the utility model by using the above technical solution or modify it into an equivalent technical solution. Therefore, any simple modification or equivalent replacement made according to the technical solution of the utility model shall fall within the scope of protection claimed by the utility model.

Claims

1. A device capable of adjusting different types of polycarbonate polymerization reactions, comprising a reactor shell (11), support legs (12) fixedly installed around the bottom surface of the reactor shell (11), a drain pipe (13) fixedly installed at the center of the bottom surface of the reactor shell (11), a catalyst cabin (14) fixedly installed at the lower end of the drain pipe (13), and a catalyst liquid injected into the catalyst cabin (14), characterized in that: The reactor shell (11) is divided into two parts, the upper part of the reactor shell (11) is a hexagonal hollow frustum structure that is small at the top and large at the bottom, and the lower part of the reactor shell (11) is a hexagonal hollow frustum structure that is large at the top and small at the bottom. A multi-layer reaction platform is installed on the inner wall of the upper part of the reactor shell (11), and reaction monomers can be placed on the multi-layer reaction platform. An atomizing device is arranged on the top surface of the reactor shell (11), and the atomizing device can spray a catalyst.

2. The device for adjusting polymerization reactions of different types of polycarbonate according to claim 1, characterized in that: The multi-layer reaction platform comprises a first frame (21), the first frame (21) being fixedly mounted on the upper side of the inner wall of the upper half of the reactor shell (11), the first frame (21) being a hexagonal frame structure, and upper support plates (22) being fixedly mounted on six directions of the top surface of the first frame (21).

3. The device for adjusting polymerization reactions of different types of polycarbonate according to claim 2, characterized in that: The multi-layer reaction platform comprises a second frame (23), the second frame (23) being fixedly mounted at the middle of the inner wall of the upper half of the reactor shell (11), the second frame (23) being a hexagonal frame structure, and middle-layer support plates (24) being fixedly mounted in six directions on the top surface of the second frame (23).

4. The device for adjusting polymerization reactions of different types of polycarbonate according to claim 3, characterized in that: The multi-layer reaction platform comprises a third frame (25), the third frame (25) is fixedly mounted on the lower side of the inner wall of the upper half of the reactor shell (11), the third frame (25) is a hexagonal frame structure, and lower support plates (26) are fixedly mounted on the top surface of the third frame (25) in six directions.

5. The device for adjusting polymerization reactions of different types of polycarbonate according to claim 4, characterized in that: The upper support plate (22), the middle support plate (24) and the lower support plate (26) are each provided with a flap (17) at one end close to the inner wall of the reactor shell (11); a plurality of the flaps (17) are rotatably mounted on the outer wall of the reactor shell (11); and a handle (18) is fixedly mounted on one side of the flap (17) away from the upper support plate (22), the middle support plate (24) and the lower support plate (26).

6. The device for adjusting polymerization reactions of different types of polycarbonate according to claim 4, characterized in that: A fourth frame (28) is fixedly mounted on the inner wall of the lower half of the reactor shell (11), and the fourth frame (28) is a hexagonal frame structure.

7. The device for adjusting polymerization reactions of different types of polycarbonate according to claim 6, characterized in that: A heating column (27) is fixedly mounted on the middle of the top surface of the fourth frame (28), wherein the heating column (27) has a built-in heating wire and is in the form of a hexagonal column structure. The heating column (27) passes through the third frame (25), the second frame (23) and the middle of the first frame (21) in sequence.

8. The device for adjusting polymerization reactions of different types of polycarbonate according to claim 1, characterized in that: The atomizing device comprises an air pump (16), the air pump (16) is fixedly mounted on the top surface of the reactor shell (11), a nozzle (19) is fixedly mounted on the lower end of the air pump (16), the nozzle (19) penetrates downward through the top surface of the reactor shell (11), one side of the air pump (16) is fixedly connected to a conduit (15), and one end of the conduit (15) away from the air pump (16) is inserted into the catalyst cabin (14).

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