A device for producing di-tert-butyl dicarbonate

Abstract

The utility model provides a kind of di-tert-butyl dicarbonate production device, it is related to chemical production technical field, including base, the base includes slab, fixed hole is opened in the slab, fixed sleeve is fixed on the slab top surface, fixed hole is used to fix slab.The utility model will drive connecting plate to rotate from driving pulley rotation, first gear bar rotates around fixed shaft axis center, and will also autorotate under the action of fixed gear, autorotating first gear bar will drive second gear bar and support shell to rotate, in the above process, connecting plate will also drive support shell to rotate around fixed shaft axis center, further make support shell and barrel body autorotate while revolving, realize the mixing of material, the device can save stirring paddle, avoid the cleaning problem brought by paddle structure, barrel body is movably arranged in support shell, convenient to take out and clean, reduce material residue, simplify cleaning process.

Description

Technical Field

[0001] This utility model relates to a production device, specifically a production device for di-tert-butyl dicarbonate, belonging to the field of chemical production technology. Background Technology

[0002] Di-tert-butyl dicarbonate, also known as BOC anhydride, is a novel amino protecting agent commonly used for amino protection of amino acids and widely applied in pharmaceuticals, peptide synthesis, and other fields. It can be prepared by reacting potassium tert-butoxide with carbon dioxide and phosgene to first obtain di-tert-butyl tricarbonate, which is then converted to di-tert-butyl dicarbonate; alternatively, it can be prepared by reacting tert-butanol with carbonic anhydride under acid-base catalysis.

[0003] In its production, stirring ensures thorough mixing of raw materials, accelerates the reaction rate, and improves reaction efficiency and yield. For example, after adding sodium amide to the reactor and the reaction solvent, it is necessary to stir evenly before adding tert-butanol dropwise for the displacement reaction. When preparing sodium tert-butyl carbonate, slow stirring is also required during the introduction of carbon dioxide gas.

[0004] In existing di-tert-butyl dicarbonate production processes, the mixing equipment relies on various shapes of impellers, such as paddle and anchor impellers. However, the impeller structure is complex, material residue is easily left behind, and cleaning requires disassembly and rinsing, which is difficult and may affect the purity of subsequent batches due to incomplete cleaning. Therefore, this paper proposes a production apparatus for di-tert-butyl dicarbonate. Utility Model Content

[0005] This invention proposes a production apparatus for di-tert-butyl dicarbonate, which eliminates the need for a stirring paddle, avoids the cleaning problems caused by the paddle structure, reduces material residue, and simplifies the cleaning process.

[0006] This utility model is achieved through the following technical solution: a production device for di-tert-butyl dicarbonate, including a base, the base including a plate, the plate having a fixing hole, and a fixing sleeve fixed on the top surface of the plate, the fixing hole being used to fix the plate.

[0007] It also includes a stirring component, which is mounted on a base. The stirring component includes a fixed shaft mounted on the base, specifically, the fixed shaft is fixed to a fixed sleeve, and a fixed gear is fixed on the fixed shaft. The stirring component also includes a connecting plate mounted on the fixed shaft, on which a first gear rod meshes with the fixed gear and a second gear rod meshes with the first gear rod. When the first gear rod rotates around the axis of the fixed shaft under the drive of the connecting plate, it will drive the second gear rod to rotate. The stirring component also includes a stabilizing plate, which is rotatably connected to the fixed shaft and the first gear rod. The stabilizing plate is provided to improve the stability of the first gear rod.

[0008] It also includes a mixing tank, which is mounted on a second gear rod. The mixing tank includes a support shell, which is fixed to the top of the second gear rod. A barrel body is movably disposed inside the support shell. A sealing cover is installed on the top of the barrel body to seal the top of the barrel body and prevent material from spilling. A lock is installed between the sealing cover and the barrel body to connect the sealing cover and the barrel body.

[0009] The mixing tank also includes a guide groove and a guide strip. The guide groove is formed inside the support shell, and the guide strip is fixed on the tank body. The tank body is movably disposed inside the support shell through the guide groove and the guide strip, which are used to guide the tank body.

[0010] It also includes a drive component, which is mounted on the base and is used to drive the connecting plate. The drive component includes a motor, which is fixed to the top of the plate. The output end of the motor is fixed with a drive pulley. When the motor starts, it will drive the drive pulley to rotate. The drive component also includes a driven pulley, which is rotatably connected to a fixed shaft and fixed to the connecting plate. A belt is installed between the drive pulley and the driven pulley. When the drive pulley rotates, it will drive the driven pulley and the connecting plate to rotate through the belt.

[0011] This invention provides a production apparatus for di-tert-butyl dicarbonate, which has the following beneficial effects:

[0012] The rotation of the driven pulley in this di-tert-butyl dicarbonate production device drives the connecting plate to rotate. While the first gear rod rotates around the fixed shaft, it will also rotate under the action of the fixed gear. The rotating first gear rod will drive the second gear rod and the support shell to rotate. During the above process, the connecting plate will also drive the support shell to rotate around the fixed shaft, thereby causing the support shell and the barrel to rotate on their own axis and revolve around the fixed shaft, thus achieving mixing of materials. This device can eliminate the need for a stirring paddle, avoiding the cleaning problems caused by the paddle structure. The barrel is movable inside the support shell, which is convenient for removal and cleaning, reduces material residue, and simplifies the cleaning process. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ;

[0014] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ;

[0015] Figure 3 This is a front view of the present invention;

[0016] Figure 4 This is a schematic diagram of the mixing tank structure of this utility model.

[0017] Explanation of reference numerals in the attached figures

[0018] 1. Base; 101. Plate; 102. Fixing hole; 103. Fixing sleeve;

[0019] 2. Stirring component; 201. Fixed shaft; 202. Fixed gear; 203. First gear rod; 204. Second gear rod; 205. Connecting plate; 206. Stabilizing plate;

[0020] 3. Mixing tank; 301. Support shell; 302. Tank body; 303. Sealing cap; 304. Lock; 305. Guide groove; 306. Guide strip;

[0021] 4. Drive components; 401. Motor; 402. Drive pulley; 403. Driven pulley; 404. Belt. Detailed Implementation

[0022] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this application.

[0023] Please see Figures 1-4 The present invention proposes the following implementation scheme: a production device for di-tert-butyl dicarbonate, including a base 1, the base 1 including a plate 101, a fixing hole 102 is provided on the plate 101, a fixing sleeve 103 is fixed on the top surface of the plate 101, and the fixing hole 102 is used to fix the plate 101.

[0024] Please refer to this carefully. Figure 1 , Figure 2 and Figure 3 It also includes a stirring component 2, which is mounted on a base 1. The stirring component 2 includes a fixed shaft 201 mounted on the base 1. Specifically, the fixed shaft 201 is fixed on a fixed sleeve 103, and a fixed gear 202 is fixed on the fixed shaft 201.

[0025] Please refer to this carefully. Figure 1 , Figure 2 and Figure 3 The stirring component 2 also includes a connecting plate 205 disposed on the fixed shaft 201. The connecting plate 205 is provided with a first gear rod 203 that meshes with the fixed gear 202, and a second gear rod 204 that meshes with the first gear rod 203.

[0026] Please refer to this carefully. Figure 1 , Figure 2 ,and Figure 3 When the first gear rod 203 rotates around the axis of the fixed shaft 201 under the drive of the connecting plate 205, it will drive the second gear rod 204 to rotate. The stirring component 2 also includes a stabilizing plate 206, which is rotatably connected to the fixed shaft 201 and the first gear rod 203. The stabilizing plate 206 is set to improve the stability of the first gear rod 203.

[0027] Please refer to this carefully. Figure 1 , Figure 2 and Figure 4 It also includes a mixing tank 3, which is mounted on the second gear rod 204. The mixing tank 3 includes a support shell 301, which is fixed to the top of the second gear rod 204. A barrel body 302 is movably disposed inside the support shell 301.

[0028] Please refer to this carefully. Figure 1 , Figure 2 and Figure 4 A sealing cover 303 is installed on the top of the barrel body 302. The sealing cover 303 is used to seal the top of the barrel body 302 to prevent material from spilling. A lock 304 is installed between the sealing cover 303 and the barrel body 302. The lock 304 is used to connect the sealing cover 303 and the barrel body 302.

[0029] Please refer to this carefully. Figure 1 , Figure 2 and Figure 4 The mixing tank 3 also includes a guide groove 305 and a guide bar 306. The guide groove 305 is opened inside the support shell 301, and the guide bar 306 is fixed on the tank body 302. The tank body 302 is movably disposed in the support shell 301 through the guide groove 305 and the guide bar 306. The guide groove 305 and the guide bar 306 are used to guide the tank body 302.

[0030] Please refer to this carefully. Figure 2 and Figure 3 It also includes a drive component 4, which is mounted on the base 1. The drive component 4 is used to drive the connecting plate 205. The drive component 4 includes a motor 401, which is fixed to the top of the plate 101. The output end of the motor 401 is fixed with a drive pulley 402. When the motor 401 is started, it will drive the drive pulley 402 to rotate.

[0031] Please refer to this carefully. Figure 2 and Figure 3 The drive component 4 also includes a driven pulley 403, which is rotatably connected to the fixed shaft 201. The driven pulley 403 is fixed to the connecting plate 205. A belt 404 is installed between the drive pulley 402 and the driven pulley 403. When the drive pulley 402 rotates, it will drive the driven pulley 403 and the connecting plate 205 to rotate through the belt 404.

[0032] Working principle: When stirring materials, the materials are first added into the barrel 302, and the support shell 301 is sealed by the sealing cap 303 and the lock 304.

[0033] Next, the motor 401 is started. The motor 401 will drive the drive pulley 402 to rotate. The drive pulley 402 will drive the driven pulley 403 to rotate through the belt 404. The rotation of the driven pulley 403 will drive the connecting plate 205 to rotate. The first gear rod 203 will rotate around the axis of the fixed shaft 201 under the drive of the connecting plate 205, and will also rotate on its own axis under the action of the fixed gear 202.

[0034] The rotating first gear 203 will drive the second gear 204 and the support shell 301 to rotate. During the above process, the connecting plate 205 will also drive the support shell 301 to rotate around the axis of the fixed shaft 201, thereby making the support shell 301 and the barrel 302 rotate simultaneously to achieve mixing of materials. This device can eliminate the need for a stirring paddle and avoid the cleaning problems caused by the paddle structure. The barrel 302 is movably set inside the support shell 301, which is convenient to remove for cleaning, reduces material residue, and simplifies the cleaning process.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A production apparatus for di-tert-butyl dicarbonate, comprising a base (1), characterized in that: It also includes a stirring component (2), which is disposed on the base (1); The stirring component (2) includes a fixed shaft (201) disposed on the base (1), a fixed gear (202) fixed on the fixed shaft (201), and a connecting plate (205) disposed on the fixed shaft (201). A first gear rod (203) meshing with the fixed gear (202) is disposed on the connecting plate (205), and a second gear rod (204) meshing with the first gear rod (203) is disposed on the connecting plate (205). It also includes a mixing tank (3), which is mounted on the second gear rod (204); It also includes a drive component (4), which is disposed on the base (1) and is used to drive the connecting plate (205).

2. The apparatus for producing di-tert-butyl dicarbonate according to claim 1, characterized in that: The base (1) includes a plate (101), a fixing hole (102) is provided on the plate (101), and a fixing sleeve (103) is fixed on the top surface of the plate (101).

3. The apparatus for producing di-tert-butyl dicarbonate according to claim 2, characterized in that: The fixed shaft (201) is fixed on the fixed sleeve (103).

4. The apparatus for producing di-tert-butyl dicarbonate according to claim 1, characterized in that: The mixing tank (3) includes a support shell (301), which is fixed to the top of the second gear rod (204). A tank body (302) is movably disposed inside the support shell (301). A sealing cover (303) is installed on the top of the tank body (302), and a lock (304) is installed between the sealing cover (303) and the tank body (302).

5. The apparatus for producing di-tert-butyl dicarbonate according to claim 4, characterized in that: The mixing tank (3) also includes a guide groove (305) and a guide strip (306). The guide groove (305) is opened inside the support shell (301), and the guide strip (306) is fixed on the tank body (302). The tank body (302) is movably disposed inside the support shell (301) through the guide groove (305) and the guide groove (305).

6. The apparatus for producing di-tert-butyl dicarbonate according to claim 1, characterized in that: The driving component (4) includes a motor (401), which is fixed on the top of the plate (101). The output end of the motor (401) is fixed with a driving pulley (402). The driving component (4) also includes a driven pulley (403), which is rotatably connected to a fixed shaft (201). The driven pulley (403) is fixed to a connecting plate (205). A belt (404) is installed between the driving pulley (402) and the driven pulley (403).

7. The apparatus for producing di-tert-butyl dicarbonate according to claim 1, characterized in that: The stirring component (2) also includes a stabilizing plate (206), which is rotatably connected to the fixed shaft (201) and the first gear rod (203).

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