Efficient purification device for 3-nitrobenzenesulfonic acid (S)-glycidyl ester

Abstract

The utility model relates to the technical field of efficient purification devices for 3-nitrobenzenesulfonic acid (S)-glycidyl ester, and solves the problems that when a suction filtration device is used for purifying crude 3-nitrobenzenesulfonic acid (S)-glycidyl ester, a filter plate on the surface of the suction filtration device cannot be cleaned and replaced; the problems that the purification efficiency of 3-nitrobenzenesulfonic acid (S)-glycidyl ester is affected due to the fact that waste residues left in last use possibly remain on the surface of the filter plate, and cleaning operation on the filter plate is tedious and high in difficulty are solved. The efficient purification device comprises a conical flask, a fastening assembly is arranged on the surface of the conical flask, a suction filtration tank is connected to the top end of the conical flask in an inserted mode, a filtering assembly is arranged in the suction filtration tank, and the filtering assembly comprises a magnetic suction sealing gasket fixedly connected to the inner bottom wall of the suction filtration tank. The top surface of the magnetic suction sealing gasket is connected with a suction filtration plate in a magnetic suction manner, and the top surface of the suction filtration plate is fixedly connected with an extension rod convenient to take.

Description

Technical Field

[0001] The utility model relates to the technical field of high-efficiency purification devices for 3-nitrobenzenesulfonic acid (S)-glycidyl ester, in particular to a high-efficiency purification device for 3-nitrobenzenesulfonic acid (S)-glycidyl ester. Background Art

[0002] The separation of (S)-glycidyl 3-nitrobenzenesulfonate is primarily aimed at obtaining a pure product, removing impurities, and ensuring the efficiency of chemical reactions and product quality. During chemical synthesis, it is often necessary to separate reactants and products to purify the desired chemical.

[0003] It is used as a chemical reagent in organic synthesis. In chemical synthesis, separation and purification steps are common to ensure the purity and activity of the final product. For example, solvent extraction, crystallization, filtration, and other techniques may be used to isolate and purify (S)-glycidyl 3-nitrobenzenesulfonate during the synthesis process.

[0004] However, when using a suction filtration device to purify the crude product 3-nitrobenzenesulfonic acid (S)-glycidyl ester, the filter plate on the surface of the suction filtration device cannot be cleaned and replaced. Waste residues left over from the previous use may remain on the surface of the filter plate, affecting the purification efficiency of 3-nitrobenzenesulfonic acid (S)-glycidyl ester. The cleaning operation of the filter plate is relatively cumbersome and difficult. Utility Model Content

[0005] In response to the shortcomings of the prior art, the utility model provides a high-efficiency purification device for 3-nitrobenzenesulfonic acid (S)-glycidyl ester, which solves the problem that when using a suction filtration device to purify the crude product 3-nitrobenzenesulfonic acid (S)-glycidyl ester, the filter plate on the surface of the suction filtration device cannot be cleaned and replaced, and the surface of the filter plate may retain residual waste from the previous use, thereby affecting the purification efficiency of 3-nitrobenzenesulfonic acid (S)-glycidyl ester, and the cleaning operation of the filter plate is relatively cumbersome and difficult.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: an efficient purification device for 3-nitrobenzenesulfonic acid (S)-glycidyl ester, comprising a conical flask, a fastening assembly provided on the surface of the conical flask, a suction filtration tank plugged into the top end of the conical flask, and a filter assembly provided inside the suction filtration tank;

[0007] The filter assembly includes a magnetic sealing pad fixedly connected to the bottom wall of the filtration tank, and the top surface of the magnetic sealing pad is magnetically connected to the filtration plate, and the top surface of the filtration plate is fixedly connected to an extension rod for easy removal.

[0008] In a specific embodiment, a rubber sleeve is sleeved on the top end of the extension rod, and the surface of the rubber sleeve is provided with anti-slip patterns for increasing friction.

[0009] In a specific embodiment, the fastening assembly includes a collar fixedly connected to the top surface of the conical flask, and a sliding opening is provided on the inner side wall of the collar, and a movable structure is fixedly connected to the surface of the collar.

[0010] In a specific embodiment, the movable structure includes a slide fixedly connected to both sides of the ring, and the surface of the slide is axially symmetrically connected to the movable block, the side of the movable block is provided with a threaded hole, and the internal thread of the threaded hole is connected to the forward and reverse screw rods.

[0011] In a specific embodiment, a socket is provided at one end of the forward and reverse screw rods, and an auxiliary rod for assisting force generation is inserted into the socket, and an anti-slip pad for increasing friction is provided on the side of the moving block.

[0012] In a specific embodiment, a sleeve hole is opened on the side of the conical flask, and a negative pressure tube is connected to the inside of the sleeve hole. One end of the negative pressure tube is connected to an external negative pressure device, and a sealing gasket is provided at the inner top of the conical flask to increase the sealing performance.

[0013] Compared with the prior art, the present invention provides a highly efficient purification device for 3-nitrobenzenesulfonic acid (S)-glycidyl ester, which has the following beneficial effects:

[0014] In the technical solution disclosed by the utility model, before using a suction filtration device to purify the crude product of 3-nitrobenzenesulfonic acid (S)-glycidyl ester, the suction filter plate inside the suction filtration tank can be removed and cleaned to avoid the residues left on the surface of the plate from previous use, thereby preventing the purification quality of the crude product of 3-nitrobenzenesulfonic acid (S)-glycidyl ester from being affected.

[0015] By using the filter assembly provided by the utility model, the extension rod is pulled with force to drive the filter plate fixed at the bottom end to separate from the magnetic sealing gasket, and the filter plate is taken out from the inside of the filter tank. After cleaning, it is reinserted into the inside of the filter tank. The magnetic sealing gasket can ensure that there will be no air leakage at the edge of the contact between the filter plate and the inside of the filter tank. Then, the crude product of 3-nitrobenzenesulfonic acid (S)-glycidyl ester is placed on the surface of the filter plate inside the filter tank, and the filtration operation can be performed on it, thereby facilitating the cleaning of the filtration device and avoiding the effect of residues from previous experiments affecting the purification quality of 3-nitrobenzenesulfonic acid (S)-glycidyl ester. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0017] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the filter assembly of the utility model;

[0019] Figure 3 This is a schematic diagram of the fastening assembly structure of the utility model;

[0020] Figure 4 This is a schematic diagram of the split structure of the utility model.

[0021] In the figure: 1. Conical flask; 2. Fastening assembly; 21. Ring; 22. Moving structure; 221. Slide plate; 222. Moving block; 223. Forward and reverse screw rods; 3. Filter tank; 4. Filter assembly; 41. Magnetic sealing pad; 42. Filter plate; 43. Extension rod; 5. Rubber sleeve; 6. Anti-slip pad; 7. Negative pressure tube; 8. Sealing pad. DETAILED DESCRIPTION

[0022] The following will describe the implementation methods of the present application in detail with reference to the accompanying drawings and examples, so that the implementation process of how the present application applies technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0023] Figures 1-4 This is an embodiment of the present utility model, a high-efficiency purification device for 3-nitrobenzenesulfonic acid (S)-glycidyl ester, including a conical flask 1, a fastening component 2 is provided on the surface of the conical flask 1, and a suction filtration tank 3 is inserted at the top of the conical flask 1, and a filter component 4 is provided inside the suction filtration tank 3.

[0024] The specific problem addressed by this specific embodiment is to solve the problem that when using a suction filtration device to purify the crude product of 3-nitrobenzenesulfonic acid (S)-glycidyl ester, the filter plate on the surface of the suction filtration device cannot be cleaned and replaced, and the surface of the filter plate may retain residual waste from the previous use, thereby affecting the purification efficiency of the 3-nitrobenzenesulfonic acid (S)-glycidyl ester, and the cleaning operation of the filter plate is relatively cumbersome and difficult. The utility model utilizes the method of removing the suction filtration plate 42 inside the suction filtration tank 3 for cleaning before using the suction filtration device to purify the crude product of 3-nitrobenzenesulfonic acid (S)-glycidyl ester to avoid the residue from the previous use remaining on the surface of the filter plate, thereby avoiding affecting the purification quality of the crude product of 3-nitrobenzenesulfonic acid (S)-glycidyl ester.

[0025] The filter assembly 4 includes a magnetic sealing gasket 41 fixedly connected to the inner bottom wall of the filtration tank 3, and the top surface of the magnetic sealing gasket 41 is magnetically connected to the filtration plate 42, and the top surface of the filtration plate 42 is fixedly connected to an extension rod 43 for easy taking. In this specific embodiment, the top end of the extension rod 43 is sleeved with a rubber sleeve 5, and the surface of the rubber sleeve 5 is provided with anti-slip texture for increasing friction. Pull the extension rod 43 with force to drive the filter plate 42 fixed at the bottom end to separate from the magnetic sealing gasket 41, take it out from the inside of the filtration tank 3, clean it and put it back into the inside of the filtration tank 3. The magnetic sealing gasket 41 can ensure that there will be no air leakage at the edge of the contact between the filter plate 42 and the inside of the filtration tank 3. Then, the crude product of 3-nitrobenzenesulfonic acid (S)-glycidyl ester is placed on the surface of the filter plate 42 inside the filtration tank 3, and then it can be filtered, thereby facilitating the cleaning of the filtration device and avoiding the effect of residue from the previous test affecting the purification quality of 3-nitrobenzenesulfonic acid (S)-glycidyl ester.

[0026] In this specific embodiment, the fastening assembly 2 includes a collar 21 fixedly connected to the top surface of the conical flask 1, and a sliding opening is opened on the inner side wall of the collar 21. A movable structure 22 is fixedly connected to the surface of the collar 21. The movable structure 22 includes slides 221 fixedly connected to both sides of the collar 21, and the surfaces of the slides 221 are axially symmetrically slidably connected to movable blocks 222. The sides of the movable blocks 222 are each provided with a threaded hole, and the inner thread of the threaded hole is threadedly connected to a forward and reverse screw rod 223;

[0027] After the suction filtration tank 3 is inserted into the top of the conical flask 1, the forward and reverse screw rods 223 are rotated so that the two movable blocks 222 with axially symmetrical threaded connections on their surfaces move closer to each other, and then one end of the movable block 222 enters the interior of the collar 21 through the sliding opening on the side of the collar 21, squeezing and fixing the bottom surface pipeline of the suction filtration tank 3 located inside the collar 21, thereby achieving the effect of firmly limiting and fixing the suction filtration tank 3 to prevent loosening and affecting the negative pressure strength.

[0028] The control method of the present invention is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by technicians in this field. The provision of power is also common knowledge in this field. In addition, the present invention is mainly used to protect mechanical devices, so the control method and circuit connection are no longer explained in detail in the present invention.

[0029] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements that are inherent to such process, method, article or apparatus.

[0030] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An efficient purification device for 3-nitrobenzenesulfonic acid (S)-glycidyl ester, comprising a conical flask (1), characterized in that: A fastening assembly (2) is provided on the surface of the conical flask (1), a suction filtration tank (3) is plugged into the top end of the conical flask (1), and a filtering assembly (4) is provided inside the suction filtration tank (3); The filter assembly (4) comprises a magnetic sealing gasket (41) fixedly connected to the inner bottom wall of the filtration tank (3), and the top surface of the magnetic sealing gasket (41) is magnetically connected to a filtration plate (42), and the top surface of the filtration plate (42) is fixedly connected to an extension rod (43) for easy removal.

2. A high-efficiency purification device for 3-nitrobenzenesulfonic acid (S)-glycidyl ester according to claim 1, characterized in that: The top end of the extension rod (43) is sleeved with a rubber sleeve (5), and the surface of the rubber sleeve (5) is provided with anti-skid patterns for increasing friction.

3. A high-efficiency purification device for 3-nitrobenzenesulfonic acid (S)-glycidyl ester according to claim 1, characterized in that: The fastening assembly (2) comprises a collar (21) fixedly connected to the top surface of the conical flask (1), a sliding opening is provided on the inner side wall of the collar (21), and a movable structure (22) is fixedly connected to the surface of the collar (21).

4. A high-efficiency purification device for 3-nitrobenzenesulfonic acid (S)-glycidyl ester according to claim 3, characterized in that: The movable structure (22) comprises a slide plate (221) fixedly connected to both sides of the collar (21), and the surfaces of the slide plate (221) are axially symmetrically slidably connected to movable blocks (222), the sides of the movable blocks (222) are provided with threaded holes, and the inner threads of the threaded holes are connected to forward and reverse screw rods (223).

5. A high-efficiency purification device for 3-nitrobenzenesulfonic acid (S)-glycidyl ester according to claim 4, characterized in that: One end of the forward and reverse screw rod (223) is provided with a socket, and an auxiliary rod for assisting force generation is inserted into the socket. The side of the moving block (222) is provided with an anti-slip pad (6) for increasing friction.

6. A high-efficiency purification device for 3-nitrobenzenesulfonic acid (S)-glycidyl ester according to claim 1, characterized in that: A sleeve hole is provided on the side of the conical flask (1), and a negative pressure tube (7) is sleeved inside the sleeve hole. One end of the negative pressure tube (7) is externally connected to a negative pressure device. A sealing gasket (8) is provided at the inner top end of the conical flask (1) for increasing sealing performance.

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