Photochemical reaction device and reaction system comprising same

Abstract

The utility model provides a photochemical reaction device and a reaction system comprising the same, the photochemical reaction device comprises a support and a plurality of lamp tubes, the support and the plurality of lamp tubes are arranged at intervals, a transparent coil pipe is wound on the support, the coil pipe is used for being filled with reaction liquid, and the lamp tubes are arranged to be used for irradiating the coil pipe. According to the photochemical reaction device, the lamp tubes are arranged among the brackets, and the coil pipes are wound on the brackets, so that the illuminated area of the coil pipes in the photochemical reaction can be increased, and the productivity of the photochemical reaction device is greatly improved. According to the photochemical reaction device, the supports and the lamp tubes are annularly arranged at intervals, heat is dissipated to the periphery from the intervals between the supports and the lamp tubes, the heat dissipation effect during photochemical reaction is conveniently improved, and then the process safety of the photochemical reaction device is improved.

Description

Technical Field

[0001] The utility model particularly relates to a photochemical reaction device and a reaction system comprising the same. Background Art

[0002] Photoinduced cis-trans isomerization is a photochemical reaction, which means that when certain molecules with chiral structures are irradiated with monochromatic light, they can change their spatial structure and form cis-trans isomers. This phenomenon usually occurs in molecules with stereocenters containing double bonds or chiral carbon atoms. Existing photoinduced cis-trans isomerization reaction devices have problems such as low production capacity, slow conversion, and low process safety. Therefore, it is necessary to provide a new photochemical reaction device. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the defects of low production capacity, slow conversion and low process safety of the photochemical reaction device in the prior art, and to provide a photochemical reaction device and a reaction system comprising the same.

[0004] The utility model solves the above technical problems through the following technical solutions:

[0005] The utility model provides a photochemical reaction device, which comprises a bracket and a plurality of lamp tubes. The bracket and the plurality of lamp tubes are arranged at intervals. A transparent coil is wound around the bracket. The coil is used to be filled with reaction liquid. The lamp tube is arranged to irradiate the coil.

[0006] In this solution, by arranging the lamp tubes between the brackets and then winding the coils on the brackets, the illumination area of ​​the coils in the photochemical reaction can be increased, greatly improving the production capacity of the photochemical reaction device. The brackets and the lamp tubes are arranged in a circular interval, and the heat is dissipated from the interval between the brackets and the lamp tubes to the surroundings, which is convenient for improving the heat dissipation effect during the photochemical reaction, thereby improving the process safety of the photochemical reaction device.

[0007] Preferably, a plurality of the lamp tubes are arranged to form a ring, and the bracket is disposed around the outer circumference of the ring.

[0008] In this solution, the bracket is arranged along the outer circumference of the ring body, which is convenient for winding the coil on the bracket later and also convenient for maintaining equal distances between each layer of coils, thereby ensuring that the photochemical reaction has a good heat dissipation effect.

[0009] Preferably, the cross section of the ring body is circular;

[0010] And / or, the ring body is provided with multiple layers, and the multiple layers of the ring bodies are nested.

[0011] Preferably, the photochemical reaction device further comprises a mounting frame, and the lamp tube and the bracket are both vertically mounted on the mounting frame.

[0012] Preferably, the coils are wound on the support in a serpentine shape, and the interval between each layer of the coils along the height direction is 1 mm-5 mm.

[0013] Preferably, the lamp tube is a low-pressure mercury lamp;

[0014] And / or, the coil is a FEP coil.

[0015] The utility model also provides a photochemical reaction system, which comprises the photochemical reaction device as described above.

[0016] Preferably, the photochemical reaction system further comprises a solution tank, a delivery pump, and a silver nitrate silica gel column; one end of the coil is connected to the delivery pump via a pipeline and then connected to the outlet of the solution tank; the other end of the coil is connected to the inlet of the silver nitrate silica gel column via a pipeline.

[0017] Preferably, the silver nitrate silica gel column is connected to a liquid inlet tube, and the liquid inlet tube is used to pass a flushing liquid into the silver nitrate silica gel column.

[0018] The positive progress of the utility model is that by arranging the lamp tubes between the brackets and then winding the coils on the brackets, the illumination area of ​​the coils in the photochemical reaction can be increased, greatly improving the production capacity of the photochemical reaction device. The brackets and the lamp tubes are arranged in a circular interval, and the heat is dissipated from the interval between the brackets and the lamp tubes to the surroundings, which is convenient for improving the heat dissipation effect during the photochemical reaction, thereby improving the process safety of the photochemical reaction device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The structure of the photochemical reaction device of the utility model is shown in FIG. Figure 1 .

[0020] Figure 2 The structure of the photochemical reaction device of the utility model is shown in FIG. Figure 2 .

[0021] Figure 3 It is a structural schematic diagram of the photochemical reaction system of the utility model.

[0022] Description of reference numerals:

[0023] Lamp 1

[0024] Bracket 2

[0025] Mounting bracket 3

[0026] Coil 4

[0027] Solution tank 5

[0028] Delivery pump 6

[0029] Silver nitrate silica gel column 7 DETAILED DESCRIPTION

[0030] A preferred embodiment is given below, and the present invention is described more clearly and completely in conjunction with the accompanying drawings.

[0031] like Figure 1-2 As shown, this embodiment provides a photochemical reaction device, which includes a bracket 2 and a plurality of lamp tubes 1, the bracket 2 and the plurality of lamp tubes 1 are arranged at intervals, a transparent coil 4 is wound around the bracket 2, the coil 4 is used to fill the reaction liquid, and the lamp tube 1 is configured to irradiate the coil 4. In this embodiment, the coil 4 is an FEP coil 4. In other embodiments, the coil 4 can also be a transparent hose made of other materials that can perform photochemical reactions.

[0032] In this embodiment, the lamp tube 1 is a low-pressure mercury lamp. In other embodiments, the lamp tube 1 may also be other lamps capable of performing photochemical reactions. Figure 1 As shown, 22 100W low-pressure mercury lamps are arranged alternately between the three-layer brackets 2, and the coil 4 is wound on the bracket 2, so as to increase the illumination area of ​​the coil 4 in the entire photochemical reaction, and at the same time, the bracket 2 can arrange the coil 4 with a total volume of 1.25L, which greatly improves the production capacity of the photochemical reaction device. The bracket 2 and the low-pressure mercury lamp are arranged in an annular interval, and the heat is dissipated from each interval to the surroundings, which is convenient for improving the heat dissipation effect, thereby improving the process safety of the photochemical reaction device.

[0033] A plurality of lamp tubes 1 are arranged to form a ring, and a bracket 2 is arranged around the outer circumference of the ring. The bracket 2 is arranged along the outer circumference of the ring, so as to facilitate the subsequent winding of the coil 4 on the bracket 2.

[0034] In this embodiment, the cross section of the coil is circular, and the coil is provided with multiple layers, which are nested. By wrapping the lamp tube 1 into a cylindrical shape, the brackets 2 of each layer and the lamp tube 1 can be arranged at equal intervals, so that the coil 4 forms a multi-layer nested structure, which is convenient for increasing the illumination area of ​​the coil 4.

[0035] The photochemical reaction device also includes a mounting frame 3, on which the lamp tube 1 and the bracket 2 are vertically mounted. The coil 4 is wound around the bracket 2 in a serpentine shape, so that the coil 4 can cover the bracket 2 to the greatest extent, and the reaction liquid in the coil 4 can fully contact the light emitted by the lamp tube 1 inside the bracket 2, thereby improving the production capacity of the photochemical reaction.

[0036] The interval between each layer of coils 4 along the height direction is 1mm-5mm, so that the coils 4 can maintain a good light receiving area and have a good heat dissipation effect between the coils 4, thereby balancing the reaction efficiency and process safety of the entire photochemical reaction device.

[0037] like Figure 3 As shown, this embodiment also provides a photochemical reaction system, which includes the photochemical reaction device as described above. The photochemical reaction system also includes a solution tank 5, a delivery pump 6, and a silver nitrate silica gel column 7. One end of the coil 4 is connected to the delivery pump 6 through a pipeline and then connected to the outlet of the solution tank 5, and the other end of the coil 4 is connected to the inlet of the silver nitrate silica gel column 7 through a pipeline.

[0038] The silver nitrate silica gel column 7 is connected with a liquid inlet pipe, and the liquid inlet pipe is used to pass a flushing liquid into the silver nitrate silica gel column 7 .

[0039] In this embodiment, the reaction raw materials (cyclooctene compounds) are placed in the solution tank 5, methyl tert-butyl ether (MTBE) is used as the solvent instead of ether, and the FEP coil 4 with a diameter of OD 6mm, ID 4.0mm, and a total volume of 1.25L is wound on the bracket 2 for subsequent photoinduced cis-trans isomerization reaction.

[0040] The photoinduced cis-trans isomerization reaction is shown in the figure below:

[0041]

[0042] During the reaction, the reaction solution in the solution tank 5 is passed into the coil 4 at a rate of 70 mL / min, and 245 nm, 12 100 W lamps 1 are started to irradiate the coil 4. The reaction solution is retained in the coil 4 for 20 hours. The temperature range of the reaction solution and the coil 4 during the reaction is 15°C-25°C. The irradiated reaction solution flows into the silver nitrate silica gel column 7 in turn, and the reacted solution finally returns to the solution tank 5. After the reaction is completed, the silver nitrate silica gel column 7 is rinsed with 500 ml of methyl tert-butyl ether, and N2 is passed into the silver nitrate silica gel column 7 to dry the silver nitrate silica gel column 7. The AgNO3 loaded acidified silica gel in the silver nitrate silica gel column 7 is taken out, and then 500ml of methyl tert-butyl ether is added, stirred in dark for 30min, and then filtered, and methyl tert-butyl ether is used as a rinse liquid to rinse the AgNO3 loaded acidified silica gel several times, and 500ml of a mixed solution of dichloromethane: ammonia water = 1:1 is configured, and the washed AgNO3 loaded acidified silica gel is poured into the stirred rinse liquid, stirred in dark for 30min, and then filtered, the filtrate is allowed to stand for liquid separation, and then the separated dichloromethane phase is concentrated and pulled dry at 30°C, thereby obtaining a finished product (trans-cyclooctene compounds). After measurement, the product obtained by the photochemical reaction system of this embodiment can increase the finished product yield from 20%-40% to 50%-70% compared with the prior art, and the production capacity is increased from 1g / day-10g / day to 100g / day, so the device of this embodiment can significantly improve the synthesis efficiency of the photoinduced cis-trans isomerization reaction.

[0043] The utility model is not limited to the above-mentioned embodiments. Any changes in shape or structure are within the protection scope of the utility model. The protection scope of the utility model is defined by the attached claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principle and essence of the utility model, but these changes and modifications are within the protection scope of the utility model.

Claims

1. A photochemical reaction device, characterized in that: The photochemical reaction device comprises a support and a plurality of lamp tubes. The support and the plurality of lamp tubes are arranged at intervals. A transparent coil is wound around the support. The coil is used to be filled with reaction liquid. The lamp tube is configured to irradiate the coil.

2. The photochemical reaction device according to claim 1, characterized in that: A plurality of the lamp tubes are arranged to form a ring, and the bracket is arranged around the outer circumference of the ring.

3. The photochemical reaction device according to claim 2, characterized in that: The cross section of the ring body is circular; And / or, the ring body is provided with multiple layers, and the multiple layers of the ring bodies are nested.

4. The photochemical reaction device according to claim 1, characterized in that: The photochemical reaction device also includes a mounting frame, and the lamp tube and the bracket are both vertically mounted on the mounting frame.

5. The photochemical reaction device according to claim 1, characterized in that: The coils are wound on the support in a serpentine shape, and the interval between each layer of the coils along the height direction is 1mm-5mm.

6. The photochemical reaction device according to claim 1, characterized in that: The lamp tube is a low-pressure mercury lamp; And / or, the coil is a FEP coil.

7. A photochemical reaction system, characterized in that: The photochemical reaction system comprises the photochemical reaction device as described in any one of claims 1-6.

8. A photochemical reaction system as claimed in claim 7, characterized in that: The photochemical reaction system also includes a solution tank, a delivery pump, and a silver nitrate silica gel column. One end of the coil is connected to the delivery pump through a pipeline and then connected to the outlet of the solution tank, and the other end of the coil is connected to the inlet of the silver nitrate silica gel column through a pipeline.

9. A photochemical reaction system as claimed in claim 8, characterized in that: The silver nitrate silica gel column is connected with a liquid inlet tube, and the liquid inlet tube is used to pass a flushing liquid into the silver nitrate silica gel column.

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