Continuous flow reactor for producing triphenylphosphine

Abstract

The utility model relates to the technical field of continuous flow reactors, and discloses a continuous flow reactor for producing triphenylphosphine, which comprises a reactor main body, an upper cover and a stirring barrel, the upper cover is positioned at the top of the reactor main body, the upper cover is fixedly connected with the reactor main body through a bolt, and the stirring barrel is fixedly connected with the reactor main body. The upper cover comprises a driving motor, a stirrer and a scraping rod frame, the driving motor is fixedly connected to the top of the upper cover, one end of the scraping rod frame is fixedly connected to the bottom end of the stirrer, and the top end of the stirrer penetrates through the upper cover and is fixedly connected to the output end of the driving motor. The triphenylphosphine and reactants continuously permeate into the stirring barrel through the continuous flow plate, the driving motor is started to drive the stirrer and the scraping rod frame to rotate in the stirring barrel, so that the triphenylphosphine is in full contact with the reactants, continuous reaction of the triphenylphosphine is guaranteed, the scraping rod frame scrapes the inner wall of the stirring barrel, and the reaction speed is increased. And the phenomenon that triphenylphosphine or reactants are hung on the wall to affect blanking is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of continuous flow reactors, in particular to a continuous flow reactor for producing triphenylphosphine. Background Art

[0002] Triphenylphosphine is an organic compound with the chemical formula C18H15P. It is primarily used in organic synthesis and is a polymerization initiator, a raw material for the antibiotic lincomycin, and a standard sample for phosphorus determination in organic microanalysis. A continuous flow reactor is a device in which reactants flow in continuously and reaction products flow out continuously. Its operating principle is to maintain stable reaction conditions within the reactor by continuously feeding reactants and collecting products to ensure the continuous progress of the reaction.

[0003] An existing continuous flow reactor (publication number: CN115364806B) has at least the following disadvantages: the device facilitates the continuous reaction of triphenylphosphine, but lacks stirring of the triphenylphosphine and the reactants, which easily causes uneven mixing of the triphenylphosphine and the reactants, and cannot ensure a uniform reaction of the triphenylphosphine. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a continuous flow reactor for producing triphenylphosphine.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A continuous flow reactor for producing triphenylphosphine comprises a reactor body, an upper cover and a stirring barrel, wherein the upper cover is located on the top of the reactor body and is fixedly connected to the reactor body by bolts. The upper cover comprises a drive motor, an agitator and a scraper frame, wherein the drive motor is fixedly connected to the top of the upper cover, one end of the scraper frame is fixedly connected to the bottom end of the agitator, the top end of the agitator passes through the upper cover and is fixedly connected to the output end of the drive motor, the scraper frame and the agitator are both located inside the reactor body, the outside of the scraper frame is fittedly connected to the inside of the stirring barrel, the top end of the stirring barrel is fixedly connected to the inside of the reactor body, and feeding pipes are provided on both sides of the drive motor, and the feeding pipes are connected through the top of the upper cover.

[0007] As a further solution of the present invention, a temperature detector is provided between several of the feeding pipes, the temperature detector is fixedly connected to the top of the upper cover, a continuous flow plate is provided at the bottom of the upper cover, the continuous flow plate is fixedly connected to the inside of the mixing barrel by bolts, and the shaft of the agitator is rotatably connected to the middle of the continuous flow plate.

[0008] As a further solution of the present invention, a continuous flow tank is provided at the bottom of the stirring barrel, and the continuous flow tank is fixedly connected to the bottom of the stirring barrel. The continuous flow tank and the stirring barrel are both located inside the reactor body, and an external refrigerant channel is opened between the continuous flow tank, the stirring barrel and the reactor body.

[0009] As a further solution of the present invention, a refrigerant inlet pipe is connected to the outside of the top of the reactor body, the refrigerant inlet pipe is connected to the external refrigerant channel and is located at the bottom of the upper cover, the continuous flow tank is respectively provided with an internal refrigerant channel and a diversion channel, the internal refrigerant channel surrounds the outside of the diversion channel, and a plurality of leakage grooves are provided at the bottom of the stirring barrel, the leakage grooves are connected to the top of the diversion channel.

[0010] As a further solution of the present invention, a refrigerant outlet pipe is connected to the outside of the bottom end of the reactor body, and an inlet groove and an outlet groove are respectively provided at the top and bottom ends of the continuous flow tank and the internal refrigerant channel. The inlet groove is located at the bottom of the stirring barrel, and one end of the outlet groove passes through the outer wall of the continuous flow tank. One end of the refrigerant outlet pipe passes through the external refrigerant channel and is fixedly connected to the outside of the bottom end of the continuous flow tank.

[0011] As a further solution of the present invention, the outlet groove is connected to the refrigerant outlet pipe, the bottom end of the reactor body is integrally connected to a bottom cover, a collecting groove is provided on the top of the bottom cover, the bottom of the continuous flow tank is fixedly connected to the top of the bottom cover, the collecting groove is located at the bottom of the continuous flow tank, and a number of discharge pipes are connected through the bottom of the bottom cover.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. Triphenylphosphine and reactants enter the reactor body through the feeding pipe respectively. Triphenylphosphine and reactants continuously penetrate into the mixing barrel through the continuous flow plate. The drive motor is started, and the drive motor drives the agitator and scraper frame to rotate in the mixing barrel, so that triphenylphosphine and reactants are fully in contact, ensuring that triphenylphosphine continues to react. The scraper frame scrapes the inner wall of the mixing barrel to prevent triphenylphosphine or reactants from sticking to the wall and affecting the discharge of materials. At the same time, the temperature detector detects the temperature inside the reactor, which facilitates the staff to accurately control the reaction temperature of triphenylphosphine.

[0014] 2. The stirred triphenylphosphine enters the diversion pipe of the continuous flow tank through the leakage groove. The internal refrigerant channel inside the continuous flow tank surrounds the diversion pipe, so that the refrigerant flows around the diversion pipe, dissipating heat and cooling the triphenylphosphine reacting inside the diversion pipe. The triphenylphosphine enters the collecting tank inside the bottom cover through the diversion pipe, which facilitates the flow of triphenylphosphine inside the collecting tank and is discharged through the discharge pipe to avoid the bottom of the continuous flow tank and the bottom cover from fitting together, which affects the flow and discharge of triphenylphosphine. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the three-dimensional structure of a continuous flow reactor for producing triphenylphosphine proposed in the present invention;

[0016] Figure 2 This is a schematic cross-sectional view of a continuous flow reactor for producing triphenylphosphine proposed in the present invention;

[0017] Figure 3 This is a schematic diagram of the structural decomposition of a continuous flow reactor for producing triphenylphosphine proposed in the present invention;

[0018] Figure 4 This is a schematic structural diagram of a stirring barrel of a continuous flow reactor for producing triphenylphosphine proposed in the present invention;

[0019] Figure 5 The present invention provides a schematic structural diagram of a continuous flow tank of a continuous flow reactor for producing triphenylphosphine.

[0020] In the figure: 1. Reactor body; 101. External refrigerant channel; 102. Refrigerant inlet pipe; 103. Refrigerant outlet pipe; 2. Upper cover; 201. Drive motor; 202. Agitator; 203. Scraper rack; 204. Feeding pipe; 3. Temperature detector; 4. Mixing barrel; 401. Continuous flow plate; 402. Leakage trough; 5. Continuous flow tank; 501. Internal refrigerant channel; 502. Diversion channel; 503. Inlet trough; 504. Outlet trough; 6. Bottom cover; 601. Collection trough; 602. Feeding pipe. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0022] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," "the other end," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "connected," etc. should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0024] Reference Figure 1-Figure 5 A continuous flow reactor for producing triphenylphosphine includes a reactor body 1, an upper cover 2 and a stirring barrel 4. The upper cover 2 is located at the top of the reactor body 1 and is fixedly connected to the reactor body 1 by bolts. The upper cover 2 includes a driving motor 201, an agitator 202 and a scraper frame 203. The driving motor 201 is fixedly connected to the top of the upper cover 2, and one end of the scraper frame 203 is fixedly connected to the bottom end of the agitator 202. The top of the agitator 202 passes through the upper cover 2 and is fixedly connected to the output end of the driving motor 201. The scraper frame 203 and the agitator 202 are both located inside the reactor body 1. The outside of the scraper frame 203 is fitted and connected to the inside of the stirring barrel 4. The top of the stirring barrel 4 is fixedly connected to the inside of the reactor body 1. Feeding pipes 204 are provided on both sides of the driving motor 201, and the feeding pipes 204 are connected through the top of the upper cover 2.

[0025] During use, triphenylphosphine and reactants enter the interior of the reactor body 1 through the feeding pipe 204 respectively, and the triphenylphosphine and reactants continuously penetrate into the stirring barrel 4 through the continuous flow plate 401. The drive motor 201 is started, and the drive motor 201 drives the agitator 202 and the scraper frame 203 to rotate in the stirring barrel 4, so that the triphenylphosphine and the reactants are fully in contact, ensuring that the triphenylphosphine continues to react. The scraper frame 203 scrapes the inner wall of the stirring barrel 4 to prevent the triphenylphosphine or reactants from sticking to the wall and affecting the discharge of the material.

[0026] In this embodiment, a temperature detector 3 is provided between several feeding pipes 204, and the temperature detector 3 is fixedly connected to the top of the upper cover 2. A continuous flow plate 401 is provided at the bottom of the upper cover 2, and the continuous flow plate 401 is fixedly connected to the inside of the mixing barrel 4 by bolts. The shaft of the agitator 202 is rotatably connected to the middle of the continuous flow plate 401.

[0027] During use, the temperature detector 3 detects the internal temperature of the reactor body 1, which facilitates the staff to accurately control the reaction temperature of triphenylphosphine. A number of leak holes are opened on the top of the continuous flow plate 401 to facilitate the flow of reactants and triphenylphosphine, and to facilitate the filtration of impurities inside the reactants and triphenylphosphine.

[0028] In this embodiment, a continuous flow tank 5 is provided at the bottom of the stirring barrel 4, and the continuous flow tank 5 is fixedly connected to the bottom of the stirring barrel 4. The continuous flow tank 5 and the stirring barrel 4 are both located inside the reactor body 1, and an external refrigerant channel 101 is opened between the continuous flow tank 5, the stirring barrel 4 and the reactor body 1.

[0029] During use, the staff opens the pipeline valve to allow the refrigerant to enter the external refrigerant channel 101 through the refrigerant inlet pipe 102. When the refrigerant accumulates more than the inlet groove 503, the refrigerant enters the internal refrigerant channel 501 of the continuous retention tank 5 through the inlet groove 503, cooling the triphenylphosphine inside the diversion channel 502.

[0030] In this embodiment, a refrigerant inlet pipe 102 is connected to the outside of the top of the reactor body 1. The refrigerant inlet pipe 102 is connected to the external refrigerant channel 101 and is located at the bottom of the upper cover 2. An internal refrigerant channel 501 and a diversion channel 502 are respectively opened inside the continuous flow tank 5. The internal refrigerant channel 501 surrounds the outside of the diversion channel 502. A number of leakage grooves 402 are opened at the bottom of the stirring barrel 4, and the leakage grooves 402 are connected to the top of the diversion channel 502.

[0031] During use, the stirred triphenylphosphine enters the diversion pipe 502 of the continuous flow tank 5 through the leakage groove 402. The internal refrigerant channel 501 inside the continuous flow tank 5 surrounds the diversion pipe 502, so that the refrigerant flows around the diversion pipe 502, dissipating heat and cooling the triphenylphosphine reacting inside the diversion pipe 502.

[0032] In this embodiment, a refrigerant outlet pipe 103 is connected to the outside of the bottom end of the reactor body 1, and an inlet groove 503 and an outlet groove 504 are respectively provided at the top and bottom ends of the continuous flow tank 5 and the internal refrigerant channel 501. The inlet groove 503 is located at the bottom of the stirring barrel 4, and one end of the outlet groove 504 passes through the outer wall of the continuous flow tank 5. One end of the refrigerant outlet pipe 103 passes through the external refrigerant channel 101 and is fixedly connected to the outside of the bottom end of the continuous flow tank 5.

[0033] During use, the refrigerant absorbs heat and flows into the refrigerant outlet pipe 103 through the outlet groove 504 at the bottom of the continuous flow tank 5 for discharge, thereby avoiding temperature unevenness caused by the inability of triphenylphosphine reaction to quickly dissipate heat.

[0034] In this embodiment, the outlet groove 504 is connected to the refrigerant outlet pipe 103, the bottom end of the reactor body 1 is integrally connected to the bottom cover 6, a collection groove 601 is provided on the top of the bottom cover 6, the bottom of the continuous flow tank 5 is fixedly connected to the top of the bottom cover 6, the collection groove 601 is located at the bottom of the continuous flow tank 5, and a number of discharge pipes 602 are connected through the bottom of the bottom cover 6.

[0035] During use, triphenylphosphine enters the collecting tank 601 inside the bottom cover 6 through the diversion pipe 502, and the triphenylphosphine flows inside the collecting tank 601 and is discharged through the discharge pipe 602 to prevent the bottom of the continuous flow tank 5 from being too tightly attached to the bottom cover 6, which would affect the flow and discharge of triphenylphosphine.

[0036] From the above description, it can be seen that the above-mentioned embodiment of the present utility model has achieved the following technical effects: triphenylphosphine and reactant enter the inside of the reactor body 1 respectively through the feeding pipe 204, triphenylphosphine and reactant continuously infiltrate in the stirring barrel 4 through the continuous flow plate 401, start the driving motor 201, the driving motor 201 drives the agitator 202 and the scraper frame 203 to rotate in the stirring barrel 4, so that triphenylphosphine is fully in contact with the reactant, ensure that triphenylphosphine continues to react, the scraper frame 203 scrapes the inner walls of the stirring barrel 4, avoids the occurrence of wall hanging phenomenon in triphenylphosphine or reactant and affects blanking, simultaneously the temperature detector 3 pairs of reactor body 1 internal temperature are detected, convenient staff accurately controls the reaction temperature of triphenylphosphine, the stirred triphenylphosphine enters the diverter pipe 502 of the continuous flow tank 5 through the leak trough 402, and the inner refrigerant channel 501 inside the continuous flow tank 5 surrounds the diverter pipe 502, The refrigerant is caused to flow around the shunt pipe 502, and the triphenylphosphine reacting inside the shunt pipe 502 is dissipated and cooled. The triphenylphosphine enters the collecting tank 601 inside the bottom cover 6 through the shunt pipe 502. The triphenylphosphine flows inside the collecting tank 601 and is discharged through the discharge pipe 602 to prevent the bottom of the continuous flow tank 5 from being too closely fitted to the bottom cover 6, which affects the flow and discharge of the triphenylphosphine. When the exothermic reaction of the triphenylphosphine cannot be quickly dissipated, the staff opens the pipeline valve to allow the refrigerant to enter the outer refrigerant channel 101 through the refrigerant inlet pipe 102. When the refrigerant accumulates more than the inlet groove 503, the refrigerant enters the inner refrigerant channel 501 of the continuous retention tank 5 through the inlet groove 503, and cools the triphenylphosphine inside the shunt channel 502. After absorbing heat, the refrigerant flows into the refrigerant outlet pipe 103 through the outlet groove 504 at the bottom of the continuous flow tank 5 for discharge, thereby avoiding uneven temperature caused by the inability of the triphenylphosphine reaction to quickly dissipate the exothermic heat.

[0037] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A continuous flow reactor for producing triphenylphosphine, comprising a reactor body (1), an upper cover (2) and a stirring barrel (4), characterized in that: The upper cover (2) is located at the top of the reactor body (1), and the upper cover (2) is fixedly connected to the reactor body (1) by bolts. The upper cover (2) comprises a driving motor (201), an agitator (202) and a scraper frame (203). The driving motor (201) is fixedly connected to the top of the upper cover (2), and one end of the scraper frame (203) is fixedly connected to the bottom end of the agitator (202). The top end of the agitator (202) passes through the upper cover (2) and is fixedly connected to the output end of the driving motor (201). The scraper frame (203) and the agitator (202) are both located inside the reactor body (1). The outside of the scraper frame (203) is fitted and connected to the inside of the stirring barrel (4). The top end of the stirring barrel (4) is fixedly connected to the inside of the reactor body (1). Feeding pipes (204) are provided on both sides of the driving motor (201), and the feeding pipes (204) are connected through the top of the upper cover (2).

2. A continuous flow reactor for producing triphenylphosphine according to claim 1, characterized in that, A temperature detector (3) is provided between the plurality of feeding tubes (204), the temperature detector (3) is fixedly connected to the top of the upper cover (2), a continuous flow plate (401) is provided at the bottom of the upper cover (2), the continuous flow plate (401) is fixedly connected to the inside of the mixing barrel (4) by bolts, and the shaft of the stirrer (202) is rotatably connected to the middle of the continuous flow plate (401).

3. A continuous flow reactor for producing triphenylphosphine according to claim 2, characterized in that, A continuous flow tank (5) is provided at the bottom of the stirring barrel (4), and the continuous flow tank (5) is fixedly connected to the bottom of the stirring barrel (4). The continuous flow tank (5) and the stirring barrel (4) are both located inside the reactor body (1), and an external refrigerant channel (101) is provided between the continuous flow tank (5), the stirring barrel (4) and the reactor body (1).

4. A continuous flow reactor for producing triphenylphosphine according to claim 3, characterized in that, The top of the reactor body (1) is connected to a refrigerant inlet pipe (102), which is connected to the external refrigerant channel (101) and is located at the bottom of the upper cover (2). The continuous flow tank (5) is provided with an internal refrigerant channel (501) and a diversion channel (502), and the internal refrigerant channel (501) surrounds the outside of the diversion channel (502). The bottom of the stirring barrel (4) is provided with a plurality of leakage grooves (402), and the leakage grooves (402) are connected to the top of the diversion channel (502).

5. A continuous flow reactor for producing triphenylphosphine according to claim 4, characterized in that, The bottom of the reactor body (1) is externally connected to a refrigerant outlet pipe (103), and the continuous flow tank (5) and the internal refrigerant channel (501) are respectively provided with an inlet groove (503) and an outlet groove (504) at the top and bottom ends. The inlet groove (503) is located at the bottom of the stirring barrel (4), and one end of the outlet groove (504) passes through the outer wall of the continuous flow tank (5). One end of the refrigerant outlet pipe (103) passes through the external refrigerant channel (101) and is fixedly connected to the outside of the bottom of the continuous flow tank (5).

6. A continuous flow reactor for producing triphenylphosphine according to claim 5, characterized in that, The outlet groove (504) is connected to the refrigerant outlet pipe (103), the bottom end of the reactor body (1) is integrally connected to a bottom cover (6), the top of the bottom cover (6) is provided with a collecting groove (601), the bottom of the continuous flow tank (5) is fixedly connected to the top of the bottom cover (6), the collecting groove (601) is located at the bottom of the continuous flow tank (5), and the bottom of the bottom cover (6) is connected with a plurality of discharge pipes (602).

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