Novel continuous flow reactor for producing novel light-derived material

Abstract

The utility model discloses a novel continuous flow reactor for producing new light diffraction materials, which comprises a reactor main body, a support and a vertically extending support shaft, the support shaft is rotatably connected with the support and is fixed in the middle of an inner cavity of the reactor main body through the support, and at least two groups of stirring units are annularly arranged on the support shaft. Each group of stirring units comprises a plurality of stirring blades annularly and uniformly distributed on the supporting shaft, a protective shell is fixedly arranged at one end, far away from the supporting shaft, of each stirring blade, a high-temperature-resistant strong-magnetic permanent magnet is mounted in each protective shell, and a plurality of first electromagnets and second electromagnets are arranged at the same height position of the high-temperature-resistant strong-magnetic permanent magnet on the inner wall of the reactor main body; the first electromagnets and the second electromagnets at the same height are alternately arranged in the annular direction and are distributed in an annular array shape. Materials are mixed through rotation of the supporting shaft and the stirring blades, the material mixing and mass transfer effects are enhanced, and material contact is promoted for reaction.

Description

Technical Field

[0001] The utility model relates to the technical field of photoreactive new material production, and particularly relates to a novel continuous flow reactor for photoreactive new material production. Background Art

[0002] Photoreactive new materials refer to materials related to phosgene derivatives. Phosgene is a highly toxic substance with the molecular formula COCl2, also known as carbonyl chloride, carbon oxychloride, chloroformyl chloride, etc. Photoreactive new materials are materials obtained by mixing phosgene (carbonyl chloride) with reaction materials in a reactor through a phosgenation reaction, including acyl chlorides, benzyl p-nitrochloroformates, isocyanates of p-toluenesulfonic acid, chloroformates, ureas, etc. Among them, tetrabutylurea is an important photoreactive new material and has important uses. The reactor is an important equipment for photoreactive new material production, and different reactor structures and types have significant effects on phosgenation production, the synthesis of photoreactive new materials, and production efficiency.

[0003] When the existing reactor prepares photoreactive new materials, it usually adopts an intermittent reaction kettle, which leads to intermittent operation in the production process and relatively low production efficiency. If a continuous flow reactor is developed by improving the process and reactor structure for photoreactive new material production, the production efficiency will be greatly improved. Summary of the Utility Model

[0004] Based on this, the utility model aims to provide a novel continuous flow reactor for photoreactive new material production to improve production efficiency.

[0005] To achieve the above purpose, the utility model provides a novel continuous flow reactor for photoreactive new material production, which includes a reactor main body. A material feed port is arranged at the bottom end of the reactor main body, a phosgene feed port is arranged on the side wall, and a discharge port is arranged at the top. The reactor also includes a support and a vertically extending support shaft. The support shaft is rotatably connected to the support and is fixed in the middle of the inner cavity of the reactor main body through the support. At least two groups of stirring units are circumferentially arranged on the support shaft. Each group of stirring units includes a plurality of stirring blades circumferentially distributed on the support shaft. A protective shell is fixedly arranged at one end of the stirring blade far away from the support shaft, and a high-temperature resistant strong magnetic permanent magnet is installed in the protective shell. A plurality of first electromagnets and second electromagnets are arranged on the inner wall of the reactor main body at the same height position as the high-temperature resistant strong magnetic permanent magnet. The first electromagnets and the second electromagnets at the same height are circumferentially arranged alternately and are distributed in an annular array.

[0006] In the above solution: there are two sets of the brackets. The two sets of brackets are arranged at intervals up and down. Each set of brackets includes a sleeve ring and several support rods evenly distributed circumferentially on the sleeve ring. The sleeve ring is movably sleeved on the support shaft. A circumferential protrusion is provided on the outer circle of the support shaft. The circumferential protrusion is limited between the sleeve rings of the two sets of brackets, thereby forming a rotational connection with the brackets. The end of the support rod away from the sleeve ring is fixed on the inner wall of the reactor body. The structure is ingenious and convenient to arrange.

[0007] In the above solution: each set of stirring units includes six stirring blades, and six first electromagnets and six second electromagnets are provided at the same height. When the six first electromagnets are turned on, the six high-temperature resistant strong magnetic permanent magnets are attracted by the magnetic suction force, so that the high-temperature resistant strong magnetic permanent magnets approach the first electromagnets to drive the support shaft and the stirring blades to rotate. Then the six first electromagnets are turned off and the six second electromagnets are turned on, so that the six high-temperature resistant strong magnetic permanent magnets are attracted by the magnetic suction force of the second electromagnets to continue to drive the support shaft and the stirring blades to rotate. By alternately turning on the six first electromagnets and the six second electromagnets, the six high-temperature resistant strong magnetic permanent magnets are always subjected to the magnetic suction force to drive the support shaft and the stirring blades to rotate to mix the materials, so that the materials are evenly contacted for reaction. And through the rotation of multiple stirring blades, multiple streams of materials are evenly mixed with phosgene, thereby facilitating the promotion of the material reaction to improve the production efficiency.

[0008] In the above solution: the first electromagnets and the second electromagnets are embedded in the inner wall of the reactor body and covered by a protective plate. The protective plate is used to prevent the materials from contacting the electromagnets and extend the service life of the electromagnets.

[0009] In the above solution: a set of stirring units are provided at the top, bottom and middle of the support shaft. Only the stirring units at the top and middle of the support shaft are provided with protective shells and high-temperature resistant strong magnetic permanent magnets. First electromagnets and second electromagnets are provided on the inner wall of the reactor body at positions corresponding to the high-temperature resistant strong magnetic permanent magnets. That is, at the top and middle positions of the support shaft, the high-temperature resistant strong magnetic permanent magnets and the corresponding electromagnets form a magnetic force driving mechanism, which can drive the stirring blades and the support shaft to rotate. There is no magnetic force driving mechanism at the bottom position of the support shaft, and the bottom stirring unit rotates with the support shaft.

[0010] In the above solution: there are three material inlets. A first material inlet is provided in the middle of the bottom of the reactor body. A second material inlet and a third material inlet are respectively provided on both sides of the bottom of the reactor body. There are two outlets. An upper outlet is provided at the top of the reactor body. A side outlet is provided at the upper part of one side wall of the reactor body. The phosgene inlet is provided on the opposite side of the side outlet. The materials input from the phosgene inlet move laterally, while the materials input from the first inlet, the second inlet and the third inlet flow upward to form a cross-flow collision to facilitate the mixing of the materials.

[0011] In the above solution: a porous distribution plate is radially installed at the bottom of the inner cavity of the reactor body. The flow field of the material is optimized through the porous distribution plate, the contact surface between the material and phosgene is increased, the mixing contact between the reaction material and phosgene is strengthened, and the material and phosgene can be in full contact for mass transfer and reaction.

[0012] In the above solution: three liquid-holding sieve plates are installed at intervals in the vertical direction and radially in the middle of the inner cavity of the reactor body. The flow field of the material is optimized during the flow through the liquid-holding sieve plates, so that one or more streams of material and phosgene can be in full contact for mass transfer and reaction. The stirring blade is located between the upper and middle liquid-holding sieve plates or between the middle and lower liquid-holding sieve plates, and the support shaft is located between the upper liquid-holding sieve plate and the lower liquid-holding sieve plate. When the support shaft encounters the liquid-holding sieve plate, the support shaft passes through the liquid-holding sieve plate.

[0013] In the above solution: the upper and lower edges of the stirring blade are in a blade shape, and the protective shell is in a cylindrical shape, which is beneficial to reducing the resistance suffered by the liquid material when flowing downward and upward.

[0014] In order to strengthen the transfer and reaction effects, the present utility model optimizes the flow field in the reactor, thereby improving the mixing effect between the reactants in the flow field, promoting the contact and mass transfer effect between the reactant molecules, improving the efficiency of the chemical reaction, further improving the production efficiency of the photo-derived new material, and achieving efficiency improvement and cost reduction.

[0015] The liquid-liquid cross-flow reactor of the present utility model is mainly used for the contact reaction of two to multiple fluid streams, and can be used in the continuous production process of photo-derived new materials. If two streams of materials react, one stream of liquid material is added from the top or bottom, and one stream of liquid material (in a cooled state) is added from the side wall of the reactor wall. The two streams of materials react in a cross-flow manner. If three or more streams of materials react, one or more streams of liquid materials are added from the top or bottom of the reactor, and another stream of liquid material (in a cooled state) is added from the side of the reactor wall surface. The materials react after meeting in a cross-flow manner to generate the reaction product of the photo-derived new material. During the reaction, phosgene can be cooled to the liquid state at a low temperature and added from the feeding port on the side wall of the reactor. After phosgene is added to the reactor from the side wall inlet, if the temperature of the reactor rises, the phosgene gasifies and contacts the other materials, and reacts under the condition of a catalyst.

[0016] The cross-flow continuous flow reactor of the present utility model can be applied to the reaction and production of the photo-derived new material system of liquid-liquid / gas-liquid, and the material of the reactor can be selected according to the specific product.

[0017] The present utility model utilizes the liquid-liquid cross-flow arrangement and considers the gasification phase change of phosgene entering the reactor, and can be applied to the synthesis of compounds such as tetrabutylurea.

[0018] The beneficial effects of the present utility model are:

[0019] By setting up a support, a support shaft, stirring blades, a high-temperature resistant strong magnetic permanent magnet, a first electromagnet, and a second electromagnet, when the first electromagnet is turned on, the high-temperature resistant strong magnetic permanent magnet is attracted by the magnetic suction force, so that the high-temperature resistant strong magnetic permanent magnet approaches the first electromagnet to drive the support shaft and the stirring blades to rotate. Then the first electromagnet is turned off and the second electromagnet is turned on, so that the high-temperature resistant strong magnetic permanent magnet is attracted by the magnetic suction force of the second electromagnet to continue driving the support shaft and the stirring blades to rotate. That is, by alternately turning on the first electromagnet and the second electromagnet, the high-temperature resistant strong magnetic permanent magnet is always subjected to the magnetic suction force to drive the support shaft and the stirring blades to rotate and mix the materials, strengthening the material mixing and mass transfer effects, promoting the contact of the materials for reaction, and effectively improving the production efficiency. By setting up a protective shell to wrap and protect the high-temperature resistant strong magnetic permanent magnet, it is avoided that the high-temperature resistant strong magnetic permanent magnet contacts with the materials, and its service life is prolonged. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic cross-sectional structure diagram of the present utility model;

[0021] Figure 2 is Figure 1 an enlarged structure diagram of part A in

[0022] Figure 3 is a schematic layout diagram of the first electromagnet and the second electromagnet of the present utility model;

[0023] Figure 4 is a schematic cross-sectional structure diagram of the support shaft of the present utility model.

[0024] In the figure: 1, reactor main body; 2, phosgene feed port; 3, first feed port; 4, second feed port; 5, upper discharge port; 6, side discharge port; 7, third feed port; 8, porous distribution plate; 9, liquid holding sieve plate; 10, support; 101, collar; 102, support rod; 11, support shaft; 111, circumferential protrusion; 12, stirring blade; 13, protective shell; 14, high-temperature resistant strong magnetic permanent magnet; 15, first electromagnet; 16, second electromagnet; 17, protective plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] Example 1

[0026] As Figure 1 shown in FIG. -4, a novel continuous flow reactor for the production of photo-derived new materials mainly consists of a reactor main body 1, a support 10, and a support shaft 11 extending vertically. The bottom of the reactor main body 1 is provided with a material feed port, the side wall is provided with a phosgene feed port 2, and the top is provided with a discharge port.

[0027] The support shaft 11 is rotatably connected to the support 10 and is fixed to the middle of the inner cavity of the reactor main body 1 through the support 10. There are two groups of supports 10, and the two groups of supports 10 are arranged at intervals up and down. Each group of supports 10 includes a collar 101 and a number of support rods 102 evenly distributed circumferentially on the collar 101. The collar 101 is movably sleeved on the support shaft 11. There is a circumferential protrusion 111 on the outer circle of the support shaft 11, and the circumferential protrusion 111 is limited between the collars 101 of the two groups of supports 10, thus forming a rotatable connection with the support 10. The ends of the support rods 102 far from the collar 101 are fixed to the inner wall of the reactor main body 1. The structure is ingenious and the layout is convenient.

[0028] There are at least two groups of stirring units arranged circumferentially on the support shaft 11. Each group of stirring units includes a plurality of stirring blades 12 evenly distributed circumferentially on the support shaft 11. A protective shell 13 is fixedly provided at the end of the stirring blade 12 far from the support shaft 11, and a high-temperature resistant strong magnetic permanent magnet 14 is installed in the protective shell 13. The upper and lower edges of the stirring blade 12 are in a blade shape, and the protective shell 13 is in a cylindrical shape, which is beneficial to reducing the resistance when the liquid material flows downward and upward.

[0029] On the inner wall of the reactor main body 1, a number of first electromagnets 15 and second electromagnets 16 are provided at the same height position of the high-temperature resistant strong magnetic permanent magnet 14. The first electromagnets 15 and the second electromagnets 16 at the same height are arranged alternately circumferentially and are distributed in an annular array. The first electromagnets 15 and the second electromagnets 16 can be specifically embedded in the inner wall of the reactor main body 1 and covered by a protective plate 17. The protective plate 17 is used to prevent the material from contacting the electromagnet and extend the service life of the electromagnet.

[0030] Specifically, each group of stirring units includes six stirring blades 12, and six first electromagnets 15 and six second electromagnets 16 are both provided. When the six first electromagnets 15 are turned on, the six high-temperature resistant strong magnetic permanent magnets 14 are attracted by the magnetic suction force, so that the high-temperature resistant strong magnetic permanent magnets 14 approach the first electromagnets 15 to drive the support shaft 11 and the stirring blades 12 to rotate. Then the six first electromagnets 15 are turned off and the six second electromagnets 16 are turned on, so that the six high-temperature resistant strong magnetic permanent magnets 14 are attracted by the magnetic suction force of the second electromagnets 16 to continue to drive the support shaft 11 and the stirring blades 12 to rotate. By alternately turning on the six first electromagnets 15 and the six second electromagnets 16, the six high-temperature resistant strong magnetic permanent magnets 14 are always subjected to the magnetic suction force to drive the support shaft 11 and the stirring blades 12 to rotate to mix the materials, so that the materials are evenly contacted for reaction, and the multi-strand materials and phosgene are evenly mixed by the rotation of the plurality of stirring blades 12, thus facilitating the promotion of the material reaction and accelerating the production efficiency.

[0031] Specifically, a set of stirring units are provided at the top, bottom, and middle of the support shaft 11. Among them, protective shells 13 and high-temperature resistant strong magnetic permanent magnets 14 are provided only on the stirring units at the top and middle of the support shaft 11. First electromagnets 15 and second electromagnets 16 are provided on the inner wall of the reactor main body 1 at positions corresponding to the high-temperature resistant strong magnetic permanent magnets 14. That is, at the top and middle positions of the support shaft 11, the high-temperature strong magnetic permanent magnets 14 and the corresponding electromagnets form a magnetic force driving mechanism, which can drive the stirring blades 12 and the support shaft 11 to rotate. No magnetic force driving mechanism is provided at the bottom position of the support shaft 11, and the bottom stirring unit rotates with the rotation of the support shaft 11.

[0032] Specifically, there are three material feed ports. A first material feed port 3 is provided in the middle of the bottom of the reactor main body 1. A second material feed port 4 and a third material feed port 7 are respectively provided on both sides of the bottom of the reactor main body 1. There are two discharge ports. An upper discharge port 5 is provided at the top of the reactor main body 1. A side discharge port 6 is provided at the upper part of one side wall of the reactor main body 1. The phosgene feed port 2 is provided on the opposite side of the side discharge port 6. The material input from the phosgene feed port 2 moves laterally, while the materials input from the first feed port 3, the second feed port 4, and the third feed port 7 flow upward to form a cross-flow collision, so as to facilitate the mixing of the materials.

[0033] Embodiment 2

[0034] On the basis of Embodiment 1, a porous distribution plate 8 is radially installed at the bottom of the inner cavity of the reactor main body 1. Through the porous distribution plate, the flow field is optimized when the material flows, the contact surface between the material and phosgene is increased, the mixing contact between the reaction material and phosgene is strengthened, and the material and phosgene can fully contact for mass transfer and reaction. Three liquid holding sieve plates 9 are installed at intervals in the vertical direction and radially in the middle of the inner cavity of the reactor main body 1. Through the liquid holding sieve plates, the flow field is optimized when the material flows, so that one or more materials and phosgene can fully contact for mass transfer and reaction. The stirring blades 12 are located between the upper and middle liquid holding sieve plates 9 or between the middle and lower liquid holding sieve plates 9. The support shaft 11 is located between the topmost liquid holding sieve plate 9 and the bottommost liquid holding sieve plate 9, and when the support shaft 11 encounters the middle liquid holding sieve plate 9, the support shaft 11 passes through the liquid holding sieve plate 9. The above settings are used for the situation where there is a liquid catalyst, more than two materials react with phosgene, or multiple materials are mixed and complex reactions occur.

[0035] The principle of the present utility model is as follows: First, the feeding device inputs phosgene into the reactor main body 1 through the phosgene feed port 2. It should be noted that if the subsequent reaction temperature is higher than the phosgene gasification temperature, the phosgene can be pre-cooled and liquefied and flow in in a liquid state. The temperature in the reactor main body 1 higher than the phosgene gasification temperature can re-gasify the liquid phosgene for reaction.

[0036] Meanwhile, other feeding devices input liquid materials into the reactor main body 1 through the first feeding port 3, the second feeding port 4, and the third feeding port 7. During this period, the materials input through the phosgene feeding port 2 move laterally, while the materials input through the first feeding port 3, the second feeding port 4, and the third feeding port 7 flow upward to form a cross-flow collision. The cross-flow promotes the mixing of materials in the reactor, enhances the contact mass transfer and reaction efficiency, so as to improve the production efficiency. At the same time, the flow field of the material flow is optimized through the porous distribution plate 8 and the liquid-holding sieve plate 9, increasing the contact surface between the materials and phosgene, enabling multiple streams of materials and phosgene, or multiple streams of materials to fully contact and react. The reacted materials are discharged through the upper discharge port 5 or the side discharge port 6, or the upper discharge port 5 and the side discharge port 6 discharge simultaneously.

[0037] During the cross-flow contact reaction of the materials, six first electromagnets 15 are turned on, causing the six high-temperature resistant strong magnetic permanent magnets 14 to be attracted by the magnetic suction force, so that the high-temperature resistant strong magnetic permanent magnets 14 approach the first electromagnets 15, driving the support shaft 11 and the stirring blades 12 to rotate. Then the six first electromagnets 15 are turned off and the six second electromagnets 16 are turned on, causing the six high-temperature resistant strong magnetic permanent magnets 14 to be attracted by the magnetic suction force of the second electromagnets 16 to continue driving the support shaft 11 and the stirring blades 12 to rotate. By alternately turning on the six first electromagnets 15 and the six second electromagnets 16, the six high-temperature resistant strong magnetic permanent magnets 14 are always subjected to the magnetic suction force, driving the support shaft 11 and the stirring blades 12 to rotate to mix the materials, enabling the materials to be fully mixed and contacted for reaction.

[0038] Moreover, the high-temperature resistant strong magnetic permanent magnets 14 are wrapped and protected through the setting of the protective shell 13 to prevent the high-temperature resistant strong magnetic permanent magnets 14 from contacting the materials. And through the setting of the protective plate 17, the first electromagnets 15 and the second electromagnets 16 are shielded to prevent the materials from contacting the multiple electromagnets.

Claims

1. A novel continuous flow reactor for producing new optical derivative materials, comprising a reactor body (1), wherein the bottom end of the reactor body (1) is provided with a material feed port, the side wall is provided with a phosgene feed port (2), and the top is provided with a discharge port, characterized in that: It further includes a bracket (10) and a vertically extending support shaft (11). The support shaft (11) is rotatably connected to the bracket (10) and is fixed to the middle of the inner cavity of the reactor body (1) through the bracket (10). At least two sets of stirring units are circumferentially arranged on the support shaft (11). Each set of stirring units includes a plurality of stirring blades (12) evenly distributed circumferentially on the support shaft (11). A protective shell (13) is fixedly provided at one end of the stirring blade (12) away from the support shaft (11). A high-temperature resistant and strong magnetic permanent magnet (14) is installed inside the protective shell (13). A number of first electromagnets (15) and second electromagnets (16) are provided on the inner wall of the reactor body (1) at the same height position as the high-temperature resistant and strong magnetic permanent magnet (14). The first electromagnets (15) and the second electromagnets (16) at the same height are arranged alternately circumferentially and are distributed in an annular array.

2. The novel continuous flow reactor for the production of photo-derived new materials according to claim 1, characterized in that: There are two sets of the brackets (10). The two sets of brackets (10) are arranged at intervals up and down. Each set of brackets (10) includes a collar (101) and a number of support rods (102) evenly distributed circumferentially on the collar (101). The collar (101) is movably sleeved on the support shaft (11). A circumferential protrusion (111) is provided on the outer circle of the support shaft (11). The circumferential protrusion (111) is limited between the collars (101) of the two sets of brackets (10), thereby forming a rotational connection with the bracket (10). One end of the support rod (102) away from the collar (101) is fixed to the inner wall of the reactor body (1).

3. The novel continuous flow reactor for the production of photo-derived new materials according to claim 1, wherein: Each set of stirring units includes six stirring blades (12). Six first electromagnets (15) and six second electromagnets (16) are provided at the same height.

4. The novel continuous flow reactor for the production of new optoelectronic materials according to claim 1, characterized in that: The first electromagnets (15) and the second electromagnets (16) are embedded in the inner wall of the reactor body (1) and are covered by a protective plate (17).

5. The novel continuous flow reactor for the production of light diffraction new materials according to claim 1, characterized in that: One set of stirring units is provided at the top, bottom and middle of the support shaft (11). Only the stirring units at the top and middle of the support shaft (11) are provided with protective shells (13) and high-temperature resistant and strong magnetic permanent magnets (14).

6. The novel continuous flow reactor for the production of new optoelectronic materials according to claim 1, characterized in that: There are three material feed inlets. A first material feed inlet (3) is provided in the middle of the bottom of the reactor body (1). A second material feed inlet (4) and a third material feed inlet (7) are respectively provided on both sides of the bottom of the reactor body (1). There are two discharge outlets. An upper discharge outlet (5) is provided at the top of the reactor body (1). A side discharge outlet (6) is provided at the upper part of one side wall of the reactor body (1). The phosgene feed inlet (2) is provided on the opposite side of the side discharge outlet (6).

7. The novel continuous flow reactor for the production of new optoelectronic materials according to claim 1, characterized in that: A porous distribution plate (8) is radially installed at the bottom of the inner cavity of the reactor body (1).

8. The novel continuous flow reactor for the production of new optical diffraction materials according to claim 1, characterized in that: Three liquid holding sieve plates (9) are installed at intervals up and down and radially in the middle of the inner cavity of the reactor body (1).

9. The novel continuous flow reactor for the production of new optoelectronic materials according to claim 1, characterized in that: The upper and lower edges of the stirring blade (12) are in a blade shape, and the protective shell (13) is in a cylindrical shape.

Images