A multi-stage processing type mixing tank for producing 2-bromo-5-fluorobenzotrifluoride

Abstract

The application discloses a multistage treatment type mixing tank for producing 2-bromo-5-fluorobenzotrifluoride, and solves the problem of uneven temperature distribution of mixed raw materials in a reaction mixing tank, which leads to local overheating or temperature fluctuation, and affects the purity of 2-bromo-5-fluorobenzotrifluoride when a Sandmeyer bromination reaction is carried out by using the existing method, and the mixing tank comprises an equipment base, a multistage mixing tank body, an equipment driving mechanism and an auxiliary mixing mechanism, the multistage mixing tank body comprises a first-stage treatment tank and a second-stage treatment tank, and the auxiliary mixing mechanism comprises a mixing driving part, an auxiliary mixing part, a side turbulence part and a heat preservation turbulence part, wherein the heat preservation turbulence part can be driven by the mixing driving part, so that the stable control of the reaction temperature can be realized, the local overheating or temperature fluctuation of the raw materials in the pretreatment cavity during the mixing of the raw materials can be avoided, and the generation of by-reactions and toxic gases can be reduced.

Description

Technical Field

[0001] This invention belongs to the field of chemical intermediate preparation technology, specifically relating to a multi-stage mixing tank for the production of 2-bromo-5-fluorotrifluorotoluene. Background Technology

[0002] 2-Bromo-5-fluorotrifluorotoluene is a pale yellow liquid belonging to the class of halogenated hydrocarbons. It is an important intermediate in the synthesis of pharmaceuticals, pesticides, and novel liquid crystal materials, such as bicalutamide, bicyclic dopamine D3 receptor antagonists, and LSZ102. As the use of 2-bromo-5-fluorotrifluorotoluene as a pharmaceutical intermediate in drug synthesis continues to expand, its market demand is also increasing.

[0003] Chinese patent CN106905104B discloses a method for synthesizing 2-bromo-5-fluorotrifluorotoluene. This method uses o-trifluoromethylaniline as the starting material and includes the following steps: Sandmeier bromination reaction; nitration reaction; catalytic hydrogenation reduction reaction; and diazotization fluorination reaction. However, in the existing method, when performing the Sandmeier bromination reaction, the temperature distribution of the raw materials mixed in the reaction mixing tank is uneven, leading to local overheating or temperature fluctuations. This can easily generate side reactions and toxic gases, affecting the purity of 2-bromo-5-fluorotrifluorotoluene. To address the above problems, we propose a multi-stage processing mixing tank for the production of 2-bromo-5-fluorotrifluorotoluene. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a multi-stage mixing tank for the production of 2-bromo-5-fluorotrifluorotoluene. This solves the problem that in existing methods for the Sandmeier bromination reaction, the uneven temperature distribution of the raw materials mixed in the reaction mixing tank leads to local overheating or temperature fluctuations, which can easily generate side reactions and toxic gases, thus affecting the purity of 2-bromo-5-fluorotrifluorotoluene.

[0005] This invention is achieved by providing a multi-stage mixing tank for the production of 2-bromo-5-fluorotrifluorotoluene, the multi-stage mixing tank comprising:

[0006] Equipment base;

[0007] A multi-stage mixing tank is installed within the equipment base. The multi-stage mixing tank includes a primary processing tank and a secondary processing tank, which are connected. The primary processing tank is fixedly installed on the equipment base, while the secondary processing tank is rotatably disposed within the equipment base. The primary processing tank is provided with a flow-delaying chamber, a premixing chamber, and a connecting manifold. The flow-delaying chamber is connected to the premixing chamber, and the connecting manifold is connected to the secondary processing tank.

[0008] A device drive mechanism, wherein the device drive mechanism is mounted on the device base;

[0009] The equipment drive mechanism includes:

[0010] A drive motor is fixedly mounted on the top of the equipment base, and a drive linkage is fixedly connected to the output end of the drive motor.

[0011] The upper linkage part fixedly connected to the drive linkage, and

[0012] The lower linkage unit used to drive the secondary processing tank;

[0013] An auxiliary mixing mechanism is provided, which is disposed in the premixing chamber and is used to assist in the mixing of 2-bromo-5-fluorotrifluorotoluene raw material;

[0014] The auxiliary mixing mechanism includes:

[0015] A hybrid drive unit, which is connected to the upper drive unit;

[0016] At least one set of auxiliary mixing sections is provided in the premixing chamber, and the auxiliary mixing sections are used to stir and mix the raw materials;

[0017] At least one set of side flow deflectors is provided on the sidewall of the premixing chamber, and the side flow deflectors are connected to the mixing drive unit.

[0018] The heat-insulating and turbulence-disrupting section is located at the axial position of the premixing chamber and is connected to the mixing drive section. The heat-insulating and turbulence-disrupting section is used to cool the mixed raw materials and to assist in turbulence of the raw material flow.

[0019] Preferably, a flow-delaying component is provided inside the flow-delaying cavity;

[0020] The flow delay and diversion component includes:

[0021] A supporting sleeve is rotatably installed within the delaying and guiding cavity;

[0022] At least one set of decelerating guide vanes, which are detachably mounted on the side wall of the supporting sleeve;

[0023] A flow-delaying guide is fixedly installed on the end of the supporting sleeve, the flow-delaying guide being used to delay the flow of raw materials.

[0024] Preferably, the flow-delaying guide portion includes:

[0025] The delaying guide seat is hollow inside, and the top of the delaying guide seat is detachably and fixedly connected to the lower end of the supporting sleeve.

[0026] At least one set of delaying and guiding channels, wherein the delaying and guiding channels are formed within the delaying and guiding seat;

[0027] A delaying and diverting plate is fixedly installed inside the delaying and diverting groove, and at least one set of diversion and leakage grooves are also provided on the delaying and diverting plate.

[0028] Preferably, the lower linkage includes:

[0029] The first gear is fixedly installed at the lower end of the drive linkage and is rotatably connected to the equipment base;

[0030] A first gear ring is fixedly sleeved on the side wall of the secondary treatment tank. The first gear ring meshes with the first gear, and the first gear ring is rotatably connected to the equipment base.

[0031] The secondary processing tank includes:

[0032] A manifold sleeve is fixedly installed on the top of the secondary treatment tank, and the manifold sleeve is rotatably connected to the lower end of the connecting manifold.

[0033] A secondary feeding pipe is fixedly installed on the top of the secondary treatment tank;

[0034] An accelerated processing chamber is provided inside a secondary processing tank and is used to accelerate the mixing and reaction of the reactants.

[0035] An intermediate discharge pipe is fixedly installed at the lower end of the secondary treatment tank.

[0036] A spiral stirring ring is disposed inside the acceleration processing chamber, and the top end of the spiral stirring ring is fixedly connected to the lower end of the conducting manifold.

[0037] Preferably, the upper linkage part includes:

[0038] The first rotating wheel is fixedly sleeved on the outer wall of the drive connecting rod;

[0039] A second rotating wheel is mounted on top of the primary processing tank and is rotatably connected to the first rotating wheel via a conveyor belt.

[0040] The linkage shaft is fixedly connected to the lower wall of the second rotating wheel, and the end of the linkage shaft away from the second rotating wheel passes through the upper wall of the primary treatment tank, the supporting sleeve, and the delay guide seat in sequence, and is connected to the mixing drive unit.

[0041] Preferably, the hybrid drive unit includes:

[0042] The second gear ring is rotatably disposed in the premixing chamber. The second gear ring is fixedly connected to the linkage shaft. The second gear ring is also connected to the side turbulence part and the heat preservation turbulence part respectively.

[0043] At least one set of second gears, the second gears being rotatably mounted within a second gear ring, the second gears being fixedly connected to an auxiliary mixing unit, and

[0044] A third gear ring is sleeved on the outside of the multiple sets of second gears, and the third gear ring meshes with the second gears for transmission. The third gear ring is fixedly installed on the top of the premixing chamber.

[0045] Preferably, the auxiliary mixing section includes:

[0046] An auxiliary mixing rod, one end of which is fixedly connected to the lower wall of the second gear;

[0047] At least one set of auxiliary stirring blades, which are fixedly installed on the outer wall of the auxiliary mixing rod and are used to stir and mix the raw materials;

[0048] The side spoiler includes:

[0049] The third gear is located on one side of the second gear ring and meshes with the second gear ring. A gear connecting rod is fixedly connected to one side of the third gear, and a fourth gear is fixedly installed at the end of the gear connecting rod away from the third gear.

[0050] A gear positioning seat is fixedly installed in the premixing chamber, and the gear connecting rod is rotatably connected to the gear positioning seat.

[0051] A linkage gear seat is sleeved on the outside of the fourth gear. The linkage gear seat is slidably mounted on the gear positioning seat, and meshes with the fourth gear for transmission.

[0052] A scraping turbulence component that is fixedly installed on the linkage gear seat.

[0053] Preferably, the heat-insulating and airflow-deflecting part includes:

[0054] A turbulence drive disk, which is fixedly mounted on the second gear ring;

[0055] A mixing and cooling seat is fixedly installed inside the premixing chamber, and the mixing and cooling seat is hollow inside;

[0056] A condensation circulation assembly, wherein the condensation circulation assembly is disposed within a mixing and cooling base;

[0057] An anti-adsorption part is provided on one side of the mixing and cooling seat. The anti-adsorption part is used to scrape off the adsorbed material on the outer wall of the mixing and cooling seat and to assist in the cooling of the raw materials.

[0058] A turbulence linkage unit is connected to a turbulence drive disk and is used to drive the anti-adsorption unit.

[0059] Preferably, the condensation circulation assembly includes:

[0060] A spiral circulation tube is fixedly embedded in the inner wall of the mixing cooling base;

[0061] A circulation sleeve is fixedly installed at the bottom of the mixing and cooling base. A medium injection pipe and a medium outflow pipe are respectively provided inside the circulation sleeve. One end of the medium injection pipe and the medium outflow pipe extends to the outer wall of the pretreatment chamber, and the other end of the medium injection pipe and the medium outflow pipe are respectively fixedly connected to the spiral circulation pipe.

[0062] The anti-adsorption component includes:

[0063] An anti-adsorption mounting base is installed on the turbulence linkage unit;

[0064] At least one set of pointed scraper seats, the pointed scraper seats being fixedly mounted on the anti-adsorption mounting base.

[0065] Preferably, the disturbance linkage unit includes:

[0066] A linkage eccentric shaft is fixedly mounted on the turbulence drive disk;

[0067] An eccentric sleeve is slidably fitted onto an eccentric linkage shaft.

[0068] A linkage support fixedly connected to the side wall of the eccentric sleeve;

[0069] A swing link is detachably mounted on the linkage support, and an anti-adsorption mounting seat is fixedly sleeved on the outer wall of the swing link.

[0070] A connecting rod guide sleeve is slidably sleeved on the swing connecting rod, and the connecting rod guide sleeve is fixedly installed on the sleeve support seat, which is rotatably sleeved on the outer wall of the circulating sleeve.

[0071] Compared with the prior art, the embodiments of this application have the following main advantages:

[0072] In this embodiment of the invention, an auxiliary mixing mechanism is provided. The auxiliary mixing mechanism, comprising a mixing drive section, an auxiliary mixing section, a side flow disturbance section, and a heat-insulating flow disturbance section, works in concert to ensure thorough mixing of raw materials during preparation, significantly improving the mass transfer efficiency of the primary processing tank. This helps accelerate the reaction rate, increase yield and selectivity. Simultaneously, the heat-insulating flow disturbance section can be driven by the mixing drive section, enabling stable control of the reaction temperature. This avoids localized overheating or temperature fluctuations during raw material mixing in the pretreatment chamber, thereby reducing side reactions and the generation of toxic gases. This overcomes the problem in existing methods for Sandmeier bromination reactions where uneven temperature distribution of the raw materials in the reaction mixing tank leads to localized overheating or temperature fluctuations, easily generating side reactions and toxic gases, and affecting the purity of 2-bromo-5-fluorotrifluorotoluene.

[0073] In this embodiment of the invention, a device drive mechanism is provided, which consists of a drive motor, a drive linkage, an upper linkage part, and a lower linkage part. The drive linkage, the upper linkage part, and the lower linkage part work together to realize the synchronous drive of the auxiliary mixing mechanism and the secondary processing tank, making the control of the invention more convenient and also facilitating the multi-stage continuous production mixing of 2-bromo-5-fluorotrifluorotoluene.

[0074] In this embodiment of the invention, a flow-delaying component is provided. The flow-delaying component is disposed in the flow-delaying cavity and consists of a supporting sleeve, a flow-delaying paddle, and a flow-delaying part. The flow-delaying component is driven by the flow of raw materials, which can reduce energy consumption during raw material mixing and delay the flow of raw materials to smoothly control the reaction process and reduce safety risks.

[0075] In this embodiment of the invention, a mixing drive unit is provided, which can work in conjunction with the upper linkage unit to synchronously drive the auxiliary mixing unit, the side turbulence unit, and the heat preservation turbulence unit, thereby forming a dynamic stable flow mixing system for the raw materials in the premixing chamber, and thus enhancing the mixing effect of the raw materials.

[0076] In this embodiment of the invention, a heat-insulating and turbulence-disrupting section is provided. The heat-insulating and turbulence-disrupting section is located at the centerline of the pretreatment chamber. This section can not only break the dynamic balance of the raw materials during mixing, but also ensure a stable and consistent cooling effect of the raw materials. Compared with the existing technology where the section is located on the side wall of the tank, this section can avoid the generation of too many side reactions due to uneven temperature causing inconsistent temperatures between the side wall and the center. It also reduces the adsorption of side reaction products on the side wall, ensuring normal mixing and improving the purity of the 2-bromo-5-fluorotrifluorotoluene product. Attached Figure Description

[0077] Figure 1 This is a schematic diagram of the structure of the multi-stage mixing tank for the production of 2-bromo-5-fluorotrifluorotoluene provided by the present invention.

[0078] Figure 2 This is a three-dimensional structural diagram of the multi-stage processing mixing tank for the production of 2-bromo-5-fluorotrifluorotoluene provided by the present invention.

[0079] Figure 3 This is a front view of the multi-stage mixing tank for the production of 2-bromo-5-fluorotrifluorotoluene provided by the present invention.

[0080] Figure 4 yes Figure 3 A sectional view along line AA.

[0081] Figure 5 This is a schematic diagram of the auxiliary mixing mechanism provided by the present invention.

[0082] Figure 6 This is an isometric view of the auxiliary mixing mechanism provided by the present invention.

[0083] Figure 7 This is a front view of the auxiliary mixing mechanism provided by the present invention.

[0084] Figure 8 This is a schematic diagram of the structure of the secondary treatment tank provided by the present invention.

[0085] Figure 9 This is an isometric view of the secondary treatment tank provided by the present invention.

[0086] Figure 10 This is a schematic diagram of the auxiliary mixing section provided by the present invention.

[0087] Figure 11 This is an isometric view of the auxiliary mixing section provided by the present invention.

[0088] Figure 12 This is a schematic diagram of the side spoiler provided by the present invention.

[0089] Figure 13 This is a three-dimensional structural schematic diagram of the side spoiler provided by the present invention.

[0090] Figure 14 This is a schematic diagram of the structure of the heat-insulating and airflow-disrupting part provided by the present invention.

[0091] Figure 15 This is a front view of the heat-insulating and airflow-disrupting part provided by the present invention.

[0092] Figure 16 yes Figure 15 BB-direction sectional view.

[0093] In the diagram: 1-Equipment base, 2-Multi-stage mixing tank, 21-Primary treatment tank, 211-Primary feeding pipe, 212-Delayed flow guiding chamber, 213-Premixing chamber, 214-Connecting manifold, 22-Secondary treatment tank, 221-Manifold sleeve, 222-Secondary feeding pipe, 223-Accelerating treatment chamber, 224-Intermediate discharge pipe, 225-Spiral stirring ring, 3-Equipment drive mechanism, 31-Drive motor, 32 - Upper linkage part, 321- First rotating wheel, 322- Second rotating wheel, 323- Conveyor belt, 324- Linkage shaft, 33- Drive linkage, 34- Lower linkage part, 341- First gear, 342- First gear ring, 4- Delaying guide assembly, 41- Delaying guide paddle, 42- Delaying guide part, 421- Delaying guide seat, 422- Delaying guide groove, 423- Delaying guide plate, 424- Guide leakage groove, 43- Bearing 5-Support sleeve, 5-Auxiliary mixing mechanism, 51-Mixing drive unit, 511-Second gear ring, 512-Second gear, 513-Third gear ring, 52-Auxiliary mixing unit, 521-Auxiliary mixing rod, 522-Auxiliary stirring paddle, 53-Side turbulence unit, 531-Third gear, 532-Gear connecting rod, 533-Gear positioning seat, 534-Fourth gear, 535-Linkage gear seat, 536-Scraping turbulence component, 6-Heat insulation 61-Breakflow drive disc, 62-Breakflow linkage part, 621-Linkage eccentric shaft, 622-Eccentric sleeve, 623-Linkage support seat, 624-Swing link, 625-Linkage guide sleeve, 626-Sleeve support seat, 63-Mixing cooling seat, 64-Anti-adsorption part, 641-Anti-adsorption mounting seat, 642-Cone scraping seat, 65-Condensing circulation assembly, 651-Circulation sleeve, 652-Spiral circulation pipe. Detailed Implementation

[0094] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.

[0095] To address the aforementioned issues, we propose a multi-stage mixing tank for the production of 2-bromo-5-fluorotrifluorotoluene. In short, the multi-stage mixing tank for 2-bromo-5-fluorotrifluorotoluene production comprises a base 1, a multi-stage mixing tank body 2, a drive mechanism 3, and an auxiliary mixing mechanism 5. The multi-stage mixing tank body 2 includes a primary processing tank 21 and a secondary processing tank 22. The primary processing tank 21 is equipped with a flow-delaying chamber 212, a pre-mixing chamber 213, and a connecting manifold 214. The drive mechanism 3 comprises a drive motor 31, an upper linkage 32, and a lower linkage 34. The auxiliary mixing mechanism 5 includes a mixing drive unit 51, at least one set of auxiliary mixing units 52, at least one set of side flow-disrupting units 53, and a heat-insulating flow-disrupting unit 6. In the preparation reaction of 2-bromo-5-fluorotrifluorotoluene, hydrobromic acid, o-trifluoromethylaniline, and sodium nitrite from the 2-bromo-5-fluorotrifluorotoluene raw material are added into the primary processing tank 21. Then, the drive motor 31 is turned on, and the drive motor 31 drives the drive linkage 33, the upper linkage part 32, and the lower linkage part 34 to move synchronously. This causes the upper linkage part 32 to drive the mixing drive part 51, the auxiliary mixing part 52, the side turbulence part 53, and the heat preservation turbulence part 6 to move synchronously, thereby achieving the mixing and stirring of the o-bromotrifluorotoluene intermediate. After the o-bromotrifluorotoluene intermediate is prepared, it enters the secondary processing tank 22. At the same time, cuprous bromide and hydrobromic acid are added into the secondary processing tank 22. The lower drive part drives the secondary processing tank 22 to rotate, thereby achieving vigorous stirring of cuprous bromide, hydrobromic acid, and the o-bromotrifluorotoluene intermediate, and completing the bromination reaction in the preparation of 2-bromo-5-fluorotrifluorotoluene. In this embodiment of the invention, an auxiliary mixing mechanism 5 is provided. The auxiliary mixing mechanism 5, comprising a mixing drive unit 51, an auxiliary mixing unit 52, a side flow disturbance unit 53, and a heat-insulating flow disturbance unit 6, works in concert to ensure thorough mixing of the raw materials during preparation. This significantly improves the mass transfer efficiency of the primary processing tank 21, thereby accelerating the reaction rate and increasing yield and selectivity. Simultaneously, the heat-insulating flow disturbance unit 6 can be driven by the mixing drive unit 51, enabling stable control of the reaction temperature. This avoids localized overheating or temperature fluctuations during raw material mixing in the pretreatment chamber, thus reducing side reactions and the generation of toxic gases. This overcomes the problem in existing methods of Sandmeier bromination reactions where uneven temperature distribution of the raw materials in the reaction mixing tank leads to localized overheating or temperature fluctuations, easily generating side reactions and toxic gases, and affecting the purity of 2-bromo-5-fluorotrifluorotoluene.

[0096] This invention provides a multi-stage mixing tank for the production of 2-bromo-5-fluorotrifluorotoluene, such as... Figures 1-4 As shown, the multi-stage mixing tank for the production of 2-bromo-5-fluorotrifluorotoluene includes:

[0097] Equipment base 1;

[0098] It should be noted that the equipment base 1 can be a rectangular base or an "L"-shaped upright structure.

[0099] A multi-stage mixing tank 2 is installed inside the equipment base 1. The multi-stage mixing tank 2 includes a primary processing tank 21 and a secondary processing tank 22. The primary processing tank 21 and the secondary processing tank 22 are connected. The primary processing tank 21 is fixedly installed on the equipment base 1, and the secondary processing tank 22 is rotatably disposed inside the equipment base 1. The primary processing tank 21 is provided with a delaying flow guiding cavity 212, a premixing cavity 213, and a connecting manifold 214. The delaying flow guiding cavity 212 is connected to the premixing cavity 213, and the connecting manifold 214 is connected to the secondary processing tank 22.

[0100] In this embodiment, the primary processing tank 21 is used to mix and prepare the o-bromotrifluorotoluene intermediate and provides a mild and constant temperature mixing environment, while the secondary processing tank 22 is used to synthesize and prepare o-bromotrifluorotoluene and provides a vigorous stirring and mixing environment, thereby realizing multi-stage mixing processing for the production of 2-bromo-5-fluorotrifluorotoluene. Both the primary processing tank 21 and the secondary processing tank 22 can be hollow cylindrical tank structures, and the inner walls of both are polished. The side wall of the primary processing tank 21 is fixedly installed on the equipment base 1 by means of supports and fastening bolts. At least one set of primary feed pipes 211 is installed on the top of the primary processing tank 21, and the primary feed pipes 211 are used to inject raw materials into the delay and guide cavity 212.

[0101] Equipment drive mechanism 3, which is mounted on equipment base 1;

[0102] The equipment drive mechanism 3 includes:

[0103] A drive motor 31 is fixedly installed on the top of the equipment base 1, and a drive linkage 33 is fixedly connected to the output end of the drive motor 31.

[0104] The upper linkage part 32, which is fixedly connected to the drive linkage 33, and

[0105] The lower linkage 34 is used to drive the secondary processing tank 22.

[0106] In this embodiment, the drive motor 31 can be a servo motor, and the drive motor 31 is fixedly installed on the top of the equipment base 1 by means of clamps or fastening bolts. The output end of the drive motor 31 is fixedly connected to the drive linkage 33 by means of interference fit. The drive linkage 33 is rotatably connected to the equipment base 1 by means of bearings or rollers.

[0107] In this embodiment of the invention, a device drive mechanism 3 is provided. The device drive mechanism 3 consists of a drive motor 31, a drive linkage 33, an upper linkage part 32, and a lower linkage part 34. The drive linkage 33, the upper linkage part 32, and the lower linkage part 34 work together to realize the synchronous drive of the auxiliary mixing mechanism 5 and the secondary processing tank 22, making the control of the invention more convenient and also facilitating the multi-stage continuous production mixing of 2-bromo-5-fluorotrifluorotoluene.

[0108] An auxiliary mixing mechanism 5 is disposed in the premixing chamber 213 and is used to assist in the mixing of the 2-bromo-5-fluorotrifluorotoluene raw material.

[0109] Among them, such as Figures 5-7 As shown, the auxiliary mixing mechanism 5 includes:

[0110] Hybrid drive unit 51, which is connected to the upper drive unit;

[0111] At least one set of auxiliary mixing units 52 are provided in the premixing chamber 213, and the auxiliary mixing units 52 are used to stir and mix the raw materials;

[0112] At least one set of side flow deflectors 53 are disposed on the sidewall of the premixing chamber 213, and the side flow deflectors 53 are connected to the mixing drive unit 51.

[0113] The heat-insulating and flow-dispersing part 6 is located at the axial position of the premixing chamber 213. The heat-insulating and flow-dispersing part 6 is connected to the mixing drive part 51. The heat-insulating and flow-dispersing part 6 is used to cool down the mixed raw materials and to assist in the flow of the raw materials.

[0114] In this embodiment, during the preparation reaction of 2-bromo-5-fluorotrifluorotoluene, hydrobromic acid, o-trifluoromethylaniline, and sodium nitrite from the 2-bromo-5-fluorotrifluorotoluene raw material are added into the primary processing tank 21. Then, the drive motor 31 is turned on, and the drive motor 31 drives the drive linkage 33, the upper linkage part 32, and the lower linkage part 34 to move synchronously. This causes the upper linkage part 32 to drive the mixing drive part 51, the auxiliary mixing part 52, the side turbulence part 53, and the heat preservation turbulence part 6 to move synchronously, thereby achieving the mixing and stirring of the o-bromotrifluorotoluene intermediate. After the o-bromotrifluorotoluene intermediate is prepared, it enters the secondary processing tank 22. At the same time, cuprous bromide and hydrobromic acid are added into the secondary processing tank 22. The lower drive part drives the secondary processing tank 22 to rotate, thereby achieving vigorous stirring of cuprous bromide, hydrobromic acid, and the o-bromotrifluorotoluene intermediate, and completing the bromination reaction during the preparation of 2-bromo-5-fluorotrifluorotoluene.

[0115] In this embodiment of the invention, an auxiliary mixing mechanism 5 is provided. The auxiliary mixing mechanism 5, comprising a mixing drive unit 51, an auxiliary mixing unit 52, a side flow disturbance unit 53, and a heat-insulating flow disturbance unit 6, works in concert to ensure thorough mixing of the raw materials during preparation. This significantly improves the mass transfer efficiency of the primary processing tank 21, thereby accelerating the reaction rate and increasing yield and selectivity. Simultaneously, the heat-insulating flow disturbance unit 6 can be driven by the mixing drive unit 51, enabling stable control of the reaction temperature. This avoids localized overheating or temperature fluctuations during raw material mixing in the pretreatment chamber, thus reducing side reactions and the generation of toxic gases. This overcomes the problem in existing methods of Sandmeier bromination reactions where uneven temperature distribution of the raw materials in the reaction mixing tank leads to localized overheating or temperature fluctuations, easily generating side reactions and toxic gases, and affecting the purity of 2-bromo-5-fluorotrifluorotoluene.

[0116] In a further preferred embodiment of the present invention, such as Figures 5-6 As shown, a flow delaying and guiding component 4 is provided inside the flow delaying and guiding cavity 212;

[0117] The flow-delaying and diverting component 4 includes:

[0118] Support sleeve 43, which is rotatably installed in the delaying and guiding cavity 212;

[0119] At least one set of delaying guide blades 41, the delaying guide blades 41 being detachably mounted on the side wall of the supporting sleeve 43;

[0120] A flow-delaying and guiding part 42 is fixedly installed on the end of the supporting sleeve 43. The flow-delaying and guiding part 42 is used to delay and guide the raw material.

[0121] It should be noted that the supporting sleeve 43 is hollow inside, and the supporting sleeve 43 is rotatably connected to the inner wall of the delaying and guiding cavity 212 through bearings or rollers. The number of delaying and guiding paddles 41 can be 3-8 sets. The surface of the delaying and guiding paddles 41 is polished, and their shape can be spiral, rectangular or fan-shaped. The delaying and guiding paddles 41 are fixedly installed on the side wall of the supporting sleeve 43 by plugging or riveting.

[0122] In this embodiment, the flow-delaying guide portion 42 includes:

[0123] The delay guide seat 421 is hollow inside, and the top of the delay guide seat 421 is detachably and fixedly connected to the lower end of the support sleeve 43.

[0124] At least one set of delaying and guiding channels 422, wherein the delaying and guiding channels 422 are formed within the delaying and guiding seat 421;

[0125] The delaying and diverting plate 423 is fixedly installed inside the delaying and diverting groove 422, and at least one set of diversion and leakage grooves 424 are also provided on the delaying and diverting plate 423.

[0126] The shape of the delaying guide seat 421 can be a twisted or bent frustum structure. The outer wall of the delaying guide seat 421 is polished. The upper end of the delaying guide seat 421 is fixedly connected to the lower end of the supporting sleeve 43 by snap-fit ​​or plug-in. The shape of the delaying drainage groove 422 can be an arc groove, a dovetail groove or a spiral groove structure. The shape of the delaying drainage plate 423 can be semi-circular, fan-shaped or rectangular. The drainage leakage groove 424 can be an arc groove or a semi-circular groove structure.

[0127] In this embodiment of the invention, a flow-delaying component 4 is provided. The flow-delaying component 4 is disposed in the flow-delaying cavity 212 and is composed of a support sleeve 43, a flow-delaying paddle 41, and a flow-delaying part 42. The flow-delaying component 4 is driven by the flow of raw materials, which can reduce the energy consumption during raw material mixing and delay the flow of raw materials to smoothly control the reaction process and reduce safety risks.

[0128] In a further preferred embodiment of the present invention, such as Figure 8 and Figure 9 As shown, the lower linkage 34 includes:

[0129] The first gear 341 is fixedly installed at the lower end of the drive linkage 33 and is rotatably connected to the equipment base 1.

[0130] A first gear ring 342 is fixedly sleeved on the side wall of the secondary treatment tank 22. The first gear ring 342 meshes with the first gear 341 for transmission, and the first gear ring 342 is rotatably connected to the equipment base 1.

[0131] It should be noted that the second gear 512 is fixedly connected to the lower end of the drive connecting rod 33 by welding or riveting, and the second gear ring 511 is fixedly connected to the outer wall of the secondary treatment tank 22 by welding or tenoning. The second gear ring 511 and the first gear 341 are rotatably connected to the equipment base 1 by bearing seats, bearing rings and bearing rings.

[0132] The secondary processing tank 22 includes:

[0133] Manifold 221 is fixedly installed on the top of the secondary treatment tank 22 and is rotatably connected to the lower end of the connecting manifold 214.

[0134] The manifold 221 is rotatably connected to the lower end of the manifold 214 via a sealing flange and rollers. The manifold 221 is fixedly installed by welding or riveting.

[0135] Secondary feeding pipe 222, which is fixedly installed on the top of secondary treatment tank 22;

[0136] It should be noted that the secondary feed tube 222 can be used to feed raw materials for the secondary reaction, such as cuprous bromide and hydrobromic acid.

[0137] Accelerated processing chamber 223 is located inside secondary processing tank 22 and is used to accelerate the mixing and reaction of reaction raw materials.

[0138] Intermediate discharge pipe 224, the intermediate discharge pipe 224 being fixedly installed at the lower end of the secondary treatment tank 22, and

[0139] A spiral stirring ring 225 is disposed in the acceleration processing chamber 223. The top end of the spiral stirring ring 225 is fixedly connected to the lower end of the connecting manifold 214. The spiral stirring ring 225 can be a structure that is wider at the top and narrower at the bottom. The top of the spiral stirring ring 225 is fixedly connected to the connecting manifold 214 by welding or tenon joint.

[0140] In this embodiment, electromagnetic valves can be installed in the intermediate discharge pipe 224, the secondary feeding pipe 222, and the manifold 221 to control the automatic opening and closing of the intermediate discharge pipe 224, the secondary feeding pipe 222, and the manifold 221. The spiral stirring ring 225 is designed to rotate relative to the secondary processing tank 22 when the secondary processing tank 22 rotates, thereby enhancing the stirring effect on the raw materials.

[0141] When in operation, the drive motor 31 starts and drives the drive linkage 33 to rotate, which in turn drives the first gear ring 342 and the first gear 341 to rotate, which in turn drives the first gear ring 342 to rotate the secondary processing tank 22, thereby accelerating the thorough and intense stirring and mixing of the raw materials and intermediates in the secondary processing tank 22.

[0142] In a further preferred embodiment of the present invention, such as Figures 1-2 As shown, the upper linkage part 32 includes:

[0143] The first rotating wheel 321 is fixedly sleeved on the outer wall of the drive connecting rod 33;

[0144] A second rotating wheel 322 is rotatably mounted on the top of the primary processing tank 21, and the second rotating wheel 322 is rotatably connected to the first rotating wheel 321 via a conveyor belt 323;

[0145] Linkage shaft 324 is fixedly connected to the lower wall of the second rotating wheel 322, and the end of the linkage shaft 324 away from the second rotating wheel 322 passes through the upper wall of the primary treatment tank 21, the supporting sleeve 43, and the delay guide seat 421 in sequence, and is connected to the mixing drive unit 51.

[0146] In this embodiment, the first rotating wheel 321 is fixedly connected to the outer wall of the drive linkage 33 by plugging or riveting, the second rotating wheel 322 is rotatably connected to the upper wall of the primary treatment tank 21 by bearings or rollers, and the linkage shaft 324 is rotatably connected to the upper wall of the primary treatment tank 21, the support sleeve 43, and the delay guide seat 421 by bearings and rollers respectively.

[0147] In a further preferred embodiment of the present invention, such as Figure 5 , Figure 6 , Figure 10 As shown, the hybrid drive unit 51 includes:

[0148] The second gear ring 511 is rotatably disposed in the premixing chamber 213. The second gear ring 511 is fixedly connected to the linkage shaft 324. The second gear ring 511 is also connected to the side turbulence part 53 and the heat preservation turbulence part 6 respectively.

[0149] At least one set of second gears 512, the second gears 512 being rotatably mounted inside the second gear ring 511, the second gears 512 being fixedly connected to the auxiliary mixing unit 52, and

[0150] A third gear ring 513 is sleeved on the outside of the multiple sets of second gears 512. The third gear ring 513 meshes with the second gear 512 for transmission. The third gear ring 513 is fixedly installed on the top of the premixing chamber 213.

[0151] In this embodiment, the second gear ring 511 is welded or riveted to the end of the linkage shaft 324, and the second gear 512 is rotatably mounted on the second gear ring 511 through a bearing. The second gear 512 can be a half, one-third, or one-quarter incomplete gear. The third gear ring 513 is fixedly embedded in the top of the premixing chamber 213 by a support rod or support. The setting of the third gear ring 513 can mesh with and drive the second gear 512 to rotate when it revolves, thereby enhancing the mixing effect of the raw materials.

[0152] In a further preferred embodiment of the present invention, such as Figures 10-11 As shown, the auxiliary mixing unit 52 includes:

[0153] An auxiliary mixing rod 521, one end of which is fixedly connected to the lower wall of the second gear 512;

[0154] At least one set of auxiliary stirring paddles 522 are fixedly installed on the outer wall of the auxiliary mixing rod 521, and the auxiliary stirring paddles 522 are used to stir and mix the raw materials.

[0155] In this embodiment, the auxiliary mixing rod 521 is fixedly connected to the lower wall of the second gear 512 by tenon or snap-fit, while the auxiliary stirring paddle 522 is circumferentially arranged on the outer wall of the auxiliary mixing rod 521. The shape of the auxiliary stirring paddle 522 can be rectangular, fan-shaped, or spiral.

[0156] During operation, the rotation of the drive linkage 33 drives the first rotating wheel 321, the second rotating wheel 322, and the conveyor belt 323 to rotate. The second rotating wheel 322 drives the linkage shaft 324 and the second gear ring 511 to rotate. The rotation of the second gear ring 511 drives the second gear 512, the auxiliary mixing rod 521, and the auxiliary stirring paddle 522 to rotate. At the same time, the third gear ring 513 meshes with the second gear 512, so that the second gear 512 drives the auxiliary mixing rod 521 and the auxiliary stirring paddle 522 to rotate synchronously and intermittently while revolving around the sun, thereby enhancing the mixing effect of the raw materials.

[0157] In this embodiment of the invention, a mixing drive unit 51 is provided, which can work in conjunction with the upper linkage unit 32 to synchronously drive the auxiliary mixing unit 52, the side turbulence unit 53 and the heat preservation turbulence unit 6, thereby forming a dynamic stable flow mixing system for the raw materials in the premixing chamber 213, and thus enhancing the mixing effect of the raw materials.

[0158] like Figures 12-13 As shown, the side spoiler 53 includes:

[0159] The third gear 531 is disposed on one side of the second gear ring 511 and meshes with the second gear ring 511 for transmission. A gear connecting rod 532 is fixedly connected to one side of the third gear 531, and a fourth gear 534 is fixedly installed at the end of the gear connecting rod 532 away from the third gear 531.

[0160] Gear positioning seat 533 is fixedly installed in the premixing chamber 213, and gear connecting rod 532 is rotatably connected to gear positioning seat 533;

[0161] A linkage gear seat 535 is sleeved on the outside of the fourth gear 534. The linkage gear seat 535 is slidably mounted on the gear positioning seat 533, and the linkage gear seat 535 meshes with the fourth gear 534 for transmission.

[0162] A scraping turbulence component 536 is fixedly installed on the linkage gear seat 535.

[0163] In this embodiment, the third gear 531 and the fourth gear 534 are fixedly installed at both ends of the gear connecting rod 532 by plugging or welding. The fourth gear 534 can be a one-third, one-quarter, or one-fifth incomplete gear. The gear connecting rod 532 is rotatably connected to the gear positioning seat 533 through rollers or bearing seats. The gear positioning seat 533 is fixedly installed on the top of the premixing chamber 213 by welding or snap-fitting. Two sets of racks are symmetrically arranged in the linkage gear seat 535, and the scraping turbulence remover 536 can be a spiral auger structure.

[0164] In this embodiment of the invention, a side flow disturbance part 53 is provided. The side flow disturbance part 53 is composed of a third gear 531, a fourth gear 534, a linkage gear seat 535, and a scraping flow disturbance component 536. The side flow disturbance part 53 is driven by the second gear ring 511 to drive the scraping flow disturbance component 536 to move up and down reciprocally, thereby improving the flow disturbance effect on the raw material flow and breaking the dynamic balance of the raw material flow.

[0165] In a further preferred embodiment of the present invention, such as Figures 14-16 As shown, the heat-insulating and airflow-deflecting part 6 includes:

[0166] A turbulence drive disk 61 is fixedly mounted on the second gear ring 511.

[0167] A mixing and cooling seat 63 is fixedly installed inside the premixing chamber 213, and the mixing and cooling seat 63 is hollow inside;

[0168] A condensation circulation assembly 65 is disposed within a mixing and cooling base 63;

[0169] An anti-adsorption part 64 is provided on one side of the mixing and cooling seat 63. The anti-adsorption part 64 is used to scrape off the adsorbed material on the outer wall of the mixing and cooling seat 63 and to assist in the cooling of the raw materials.

[0170] The turbulence linkage unit 62 is connected to the turbulence drive disk 61 and is used to drive the anti-adsorption unit 64.

[0171] In this embodiment, the turbulence driving disk 61 can be a circular plate, a circular ring, or a disc structure. The turbulence driving disk 61 is fixedly connected to the center position of the second gear ring 511 by welding or riveting. The mixing and cooling seat 63 can be an inverted cone seat structure. The mixing and cooling seat 63 is made of a material that is easy to conduct heat.

[0172] In this embodiment of the invention, a heat-insulating and flow-disrupting section 6 is provided. The heat-insulating and flow-disrupting section 6 is located at the centerline of the pretreatment chamber. It can not only break the dynamic balance of the raw materials during mixing, but also ensure that the cooling effect of the raw materials is stable and consistent. Compared with the existing technology of setting it on the side wall of the tank, it can avoid the generation of too many side reactions due to uneven temperature causing inconsistent temperatures between the side wall and the center. It reduces the adsorption of side reaction products on the side wall, ensures normal mixing, and also helps to improve the purity of the 2-bromo-5-fluorotrifluorotoluene product.

[0173] In a further preferred embodiment of the present invention, such as Figures 15-16 As shown, the condensation circulation assembly 65 includes:

[0174] A spiral circulation tube 652 is fixedly embedded in the inner wall of the mixing and cooling base 63;

[0175] A circulation sleeve 651 is fixedly installed at the bottom of the mixing and cooling base 63. A medium injection pipe and a medium outflow pipe are respectively provided inside the circulation sleeve 651. One end of the medium injection pipe and the medium outflow pipe extends to the outer wall of the pretreatment chamber, and the other end of the medium injection pipe and the medium outflow pipe are respectively fixedly connected to the spiral circulation pipe 652.

[0176] It should be noted that one end of the medium injection pipe and the medium outflow pipe extends to the outer wall of the pretreatment chamber and is respectively connected to a medium storage tank. The medium storage tank contains a cooling medium, which can be glycerol or condensate. The spiral circulation pipe 652 is an irregular spiral pipe structure with a large opening at the upper end and a small opening at the lower end. The spiral circulation pipe 652 is fixedly embedded in the inner wall of the mixing and cooling base 63 by means of snap-fit ​​or fastening bolts. The circulation sleeve 651 is fixedly installed at the bottom of the mixing and cooling base 63 by means of threads or snap-fit.

[0177] The anti-adsorption part 64 includes:

[0178] Anti-adsorption mounting base 641, which is mounted on the turbulence linkage part 62;

[0179] At least one set of pointed scraper seats 642 are fixedly mounted on the anti-adsorption mounting seat 641.

[0180] In this embodiment, the anti-adsorption mounting base 641 can be a hollow circular or rectangular base. The pointed scraping base 642 is arranged in a matrix or circumferentially on the anti-adsorption mounting base 641. The pointed scraping base 642 can be a pointed cone structure. The setting of the pointed scraping base 642 can be driven by the turbulence linkage part 62, thereby reciprocatingly scraping off the adsorbed material on the side wall of the mixing and cooling base 63, avoiding the residue of raw materials and intermediates.

[0181] In a further preferred embodiment of the present invention, such as Figure 14 As shown, the turbulence linkage unit 62 includes:

[0182] A linkage eccentric shaft 621 is fixedly mounted on the turbulence drive disk 61.

[0183] Eccentric sleeve 622, the eccentric sleeve 622 is slidably sleeved on the eccentric linkage shaft;

[0184] A linkage support 623 is fixedly connected to the side wall of the eccentric sleeve 622;

[0185] The linkage eccentric shaft 621 is fixedly installed at the eccentric position of the turbulence drive disk 61 by plugging or riveting. The outer wall of the linkage eccentric shaft 621 is polished, and a stop seat for limiting the eccentric sleeve 622 is provided at its bottom. The linkage support 623 is fixedly connected to the side wall of the eccentric sleeve 622 by welding or riveting.

[0186] A swing link 624 is detachably mounted on the linkage support 623, and an anti-adsorption mounting base 641 is fixedly sleeved on the outer wall of the swing link 624.

[0187] The connecting rod guide sleeve 625 is slidably sleeved on the swing connecting rod 624, and the connecting rod guide sleeve 625 is fixedly installed on the sleeve support seat 626, which is rotatably sleeved on the outer wall of the circulating sleeve 651.

[0188] In this embodiment, the swing link 624 is inclined and parallel to the outer wall of the mixing cooling seat 63. The swing link 624 can be a round or square rod with a polished outer wall, and the anti-adsorption mounting seat 641 is fitted onto the outer wall of the swing link 624 by snap-fit ​​or welding.

[0189] During operation, the rotation of the second gear ring 511 drives the turbulence drive disk 61 to rotate, which in turn drives the linkage eccentric shaft 621 to rotate. The linkage eccentric shaft 621 then drives the eccentric sleeve 622, the linkage support 623, the swing connecting rod 624, the anti-adsorption mounting seat 641, and the pointed cone scraping seat 642 to reciprocate around the mixing and cooling seat 63, thereby achieving the scraping of adsorbed substances and the synchronous turbulence of the raw materials, and facilitating the uniform cooling of the raw materials.

[0190] In summary, this invention provides a multi-stage processing mixing tank for the production of 2-bromo-5-fluorotrifluorotoluene. During the 2-bromo-5-fluorotrifluorotoluene preparation reaction, hydrobromic acid, o-trifluoromethylaniline, and sodium nitrite from the 2-bromo-5-fluorotrifluorotoluene raw material are added into the primary processing tank 21. Then, the drive motor 31 is activated, causing the drive linkage 33, upper linkage 32, and lower linkage 34 to move synchronously. This causes the upper linkage 32 to drive the mixing drive unit 51 and auxiliary mixing unit 54. The synchronous movement of section 52, side turbulence section 53, and heat preservation turbulence section 6 achieves mixing and stirring of the o-bromotrifluorotoluene intermediate. After the o-bromotrifluorotoluene intermediate is prepared, it enters the secondary processing tank 22. At the same time, cuprous bromide and hydrobromic acid are added into the secondary processing tank 22. The lower drive unit drives the secondary processing tank 22 to rotate, achieving vigorous stirring of cuprous bromide, hydrobromic acid, and o-bromotrifluorotoluene intermediate, and completing the bromination reaction during the preparation of 2-bromo-5-fluorotrifluorotoluene.

[0191] In this embodiment of the invention, an auxiliary mixing mechanism 5 is provided. The auxiliary mixing mechanism 5, comprising a mixing drive unit 51, an auxiliary mixing unit 52, a side flow disturbance unit 53, and a heat-insulating flow disturbance unit 6, works in concert to ensure thorough mixing of the raw materials during preparation. This significantly improves the mass transfer efficiency of the primary processing tank 21, thereby accelerating the reaction rate and increasing yield and selectivity. Simultaneously, the heat-insulating flow disturbance unit 6 can be driven by the mixing drive unit 51, enabling stable control of the reaction temperature. This avoids localized overheating or temperature fluctuations during raw material mixing in the pretreatment chamber, thus reducing side reactions and the generation of toxic gases. This overcomes the problem in existing methods of Sandmeier bromination reactions where uneven temperature distribution of the raw materials in the reaction mixing tank leads to localized overheating or temperature fluctuations, easily generating side reactions and toxic gases, and affecting the purity of 2-bromo-5-fluorotrifluorotoluene.

[0192] It should be noted that, for the sake of simplicity, the foregoing embodiments are all described as a series of actions. However, those skilled in the art should understand that the present invention is not limited to the described order of actions, as some steps may be performed in other orders or simultaneously according to the present invention. Furthermore, those skilled in the art should also understand that the embodiments described in the specification are preferred embodiments, and the actions and modules involved are not necessarily essential to the present invention.

[0193] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit the scope of protection of the invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of the present invention according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of the present invention. These technical solutions also fall within the scope of protection of the present invention.

Claims

1. A multi-stage mixing tank for the production of 2-bromo-5-fluorotrifluorotoluene, the multi-stage mixing tank comprising: Equipment base (1); A multi-stage mixing tank (2) is installed inside the equipment base (1). The multi-stage mixing tank (2) includes a primary processing tank (21) and a secondary processing tank (22). The primary processing tank (21) and the secondary processing tank (22) are connected. The primary processing tank (21) is fixedly installed on the equipment base (1). The secondary processing tank (22) is rotatably disposed inside the equipment base (1). The primary processing tank (21) is provided with a delay flow guiding cavity (212), a premixing cavity (213), and a connecting manifold (214). The delay flow guiding cavity (212) is connected to the premixing cavity (213), and the connecting manifold (214) is connected to the secondary processing tank (22). Equipment drive mechanism (3), the equipment drive mechanism (3) is mounted on equipment base (1); The equipment drive mechanism (3) includes: A drive motor (31) is fixedly installed on the top of the equipment base (1), and a drive linkage (33) is fixedly connected to the output end of the drive motor (31). The upper linkage part (32) is fixedly connected to the drive linkage (33), and The lower linkage (34) is used to drive the secondary processing tank (22); An auxiliary mixing mechanism (5) is provided in the premixing chamber (213) and is used to assist in mixing the 2-bromo-5-fluorotrifluorotoluene raw material. The auxiliary mixing mechanism (5) includes: A hybrid drive unit (51) is connected to the upper drive unit; At least one set of auxiliary mixing section (52) is provided in the premixing chamber (213) and the auxiliary mixing section (52) is used to stir and mix the raw materials; At least one set of side flow deflectors (53) are disposed on the sidewall of the premixing chamber (213), and the side flow deflectors (53) are connected to the mixing drive unit (51). The heat-insulating and turbulence-disrupting part (6) is located at the axial position of the premixing chamber (213). The heat-insulating and turbulence-disrupting part (6) is connected to the mixing drive part (51). The heat-insulating and turbulence-disrupting part (6) is used to cool down the mixed raw materials and to assist in turbulence of the raw material flow.

2. The multi-stage mixing tank for the production of 2-bromo-5-fluorotrifluorotoluene as described in claim 1, characterized in that: The delaying flow guiding cavity (212) is provided with a delaying flow guiding component (4); The flow delay and diversion component (4) includes: Support sleeve (43), which is rotatably installed in the delaying guide cavity (212); At least one set of delay guide blades (41), which are detachably mounted on the side wall of the support sleeve (43); A delaying guide (42) is fixedly installed on the end of the supporting sleeve (43), the delaying guide (42) being used to delay the flow of the raw material.

3. The multi-stage mixing tank for the production of 2-bromo-5-fluorotrifluorotoluene as described in claim 2, characterized in that: The delaying guide section (42) includes: The delay guide seat (421) is hollow inside, and the top of the delay guide seat (421) is detachably and fixedly connected to the lower end of the support sleeve (43). At least one set of delaying and guiding channels (422) are formed inside the delaying and guiding seat (421); The delaying and diverting plate (423) is fixedly installed in the delaying and diverting groove (422), and at least one set of diversion and leakage grooves (424) are also provided on the delaying and diverting plate (423).

4. The multi-stage mixing tank for the production of 2-bromo-5-fluorotrifluorotoluene as described in claim 2, characterized in that: The lower linkage (34) includes: The first gear (341) is fixedly installed at the lower end of the drive linkage (33) and is rotatably connected to the equipment base (1); A first gear ring (342) is fixedly sleeved on the side wall of the secondary treatment tank (22). The first gear ring (342) meshes with the first gear (341) for transmission. The first gear ring (342) is rotatably connected to the equipment base (1). The secondary processing tank (22) includes: Manifold (221), which is fixedly installed on the top of the secondary treatment tank (22), and the lower end of the manifold (221) is rotatably connected to the manifold (214); A secondary feeding pipe (222) is fixedly installed on the top of the secondary treatment tank (22); Accelerated processing chamber (223) is located inside the secondary processing tank (22) and is used to accelerate the mixing and reaction of the reaction raw materials. An intermediate discharge pipe (224) is fixedly installed at the lower end of the secondary treatment tank (22), and A spiral stirring ring (225) is disposed in the acceleration processing chamber (223), and the top end of the spiral stirring ring (225) is fixedly connected to the lower end of the connecting manifold (214).

5. The multi-stage mixing tank for the production of 2-bromo-5-fluorotrifluorotoluene as described in claim 3, characterized in that: The upper linkage (32) includes: The first rotating wheel (321) is fixedly sleeved on the outer wall of the drive connecting rod (33); A second rotating wheel (322) is rotatably mounted on the top of the primary processing tank (21), and the second rotating wheel (322) is rotatably connected to the first rotating wheel (321) via a conveyor belt (323); Linkage shaft (324) is fixedly connected to the lower wall of the second rotating wheel (322), and the end of the linkage shaft (324) away from the second rotating wheel (322) passes through the upper wall of the primary treatment tank (21), the support sleeve (43), and the delay guide seat (421) in sequence, and is connected to the mixing drive unit (51).

6. The multi-stage mixing tank for the production of 2-bromo-5-fluorotrifluorotoluene as described in claim 1, characterized in that: The hybrid drive unit (51) includes: The second gear ring (511) is rotatably disposed in the premixing chamber (213). The second gear ring (511) is fixedly connected to the linkage shaft (324). The second gear ring (511) is also connected to the side turbulence part (53) and the heat preservation turbulence part (6) respectively. At least one set of second gears (512) are rotatably mounted inside a second gear ring (511), and the second gears (512) are fixedly connected to the auxiliary mixing unit (52). A third gear ring (513) is sleeved on the outside of the multiple sets of second gears (512). The third gear ring (513) meshes with the second gear (512) for transmission. The third gear ring (513) is fixedly installed on the top of the premixing chamber (213).

7. The multi-stage mixing tank for the production of 2-bromo-5-fluorotrifluorotoluene as described in claim 6, characterized in that: The auxiliary mixing unit (52) includes: An auxiliary mixing rod (521) is fixedly connected at one end to the lower wall of the second gear (512). At least one set of auxiliary stirring paddles (522) are fixedly installed on the outer wall of the auxiliary mixing rod (521), and the auxiliary stirring paddles (522) are used to stir and mix the raw materials; The side spoiler (53) includes: The third gear (531) is located on one side of the second gear ring (511) and meshes with the second gear ring (511). A gear connecting rod (532) is fixedly connected to one side of the third gear (531), and a fourth gear (534) is fixedly installed at the end of the gear connecting rod (532) away from the third gear (531). Gear positioning seat (533), the gear positioning seat (533) is fixedly installed in the premixing chamber (213), and the gear connecting rod (532) is rotatably connected to the gear positioning seat (533); A linkage gear seat (535) is sleeved on the outside of the fourth gear (534). The linkage gear seat (535) is slidably mounted on the gear positioning seat (533), and the linkage gear seat (535) meshes and transmits power with the fourth gear (534). A scraping turbulence component (536) is fixedly installed on the linkage gear seat (535).

8. The multi-stage mixing tank for the production of 2-bromo-5-fluorotrifluorotoluene as described in claim 6, characterized in that: The heat-insulating and airflow-deflecting part (6) includes: A turbulence drive disk (61) is fixedly mounted on a second gear ring (511); A mixing and cooling seat (63) is fixedly installed inside the premixing chamber (213), and the mixing and cooling seat (63) is hollow inside; A condensation circulation assembly (65) is disposed within a mixing cooling base (63); An anti-adsorption part (64) is provided on one side of the mixing and cooling seat (63). The anti-adsorption part (64) is used to scrape off the adsorbed material on the outer wall of the mixing and cooling seat (63) and assist in cooling the raw materials. A turbulence linkage unit (62) is connected to a turbulence drive disk (61) and is used to drive the anti-adsorption unit (64).

9. The multi-stage mixing tank for the production of 2-bromo-5-fluorotrifluorotoluene as described in claim 8, characterized in that: The condensation circulation assembly (65) includes: A spiral circulation tube (652) is fixedly embedded in the inner wall of the mixing cooling base (63); A circulation sleeve (651) is fixedly installed at the bottom of the mixing cooling seat (63). A medium injection pipe and a medium outflow pipe are respectively provided inside the circulation sleeve (651). One end of the medium injection pipe and the medium outflow pipe extends to the outer wall of the pretreatment chamber, and the other end of the medium injection pipe and the medium outflow pipe are fixedly connected to the spiral circulation pipe (652). The anti-adsorption part (64) includes: Anti-adsorption mounting base (641), which is mounted on the turbulence linkage part (62); At least one set of cone scraper seats (642) are fixedly mounted on the anti-adsorption mounting seat (641).

10. The multi-stage mixing tank for the production of 2-bromo-5-fluorotrifluorotoluene as described in claim 9, characterized in that: The disturbance linkage unit (62) includes: A linkage eccentric shaft (621) is fixedly mounted on the turbulence drive disk (61); An eccentric sleeve (622) is slidably sleeved on an eccentric linkage shaft; A linkage support (623) is fixedly connected to the side wall of the eccentric sleeve (622); A swing link (624) is detachably installed on the linkage support (623), and an anti-adsorption mounting base (641) is fixedly sleeved on the outer wall of the swing link (624); The connecting rod guide sleeve (625) is slidably sleeved on the swing connecting rod (624), and the connecting rod guide sleeve (625) is fixedly installed on the sleeve support seat (626), which is rotatably sleeved on the outer wall of the circulating sleeve (651).

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