Filtering device for monomer purification and monomer purification system

Abstract

The utility model relates to a filtering device for monomer purification and a monomer purification system, and belongs to the technical field of filtering and impurity removal. The filtering device comprises a first filtering piece and a second filtering piece, a purified substance supporting part filled with a purified substance is arranged in the first filtering piece, the first filtering piece is sleeved with the second filtering piece, and a drying agent or the purified substance is filled in the second filtering piece; the monomers sequentially pass through a filter layer formed by a purification substance supporting part in the first filter part and a filter layer formed by a drying agent or a purification substance in the second filter part, so that efficient purification is realized; the monomer purification system integrates the separating funnel, the converter, the filtering device, the sand core funnel and the filtrate collecting device, all the parts are detachably connected, and maintenance and replacement are convenient. According to the purification system, through the synergistic effect of the two-stage filtering mechanism of the filtering device and the suction filtration mode of the sand core funnel, the monomers are rapidly purified, and on the premise that the purity is ensured, the production efficiency and flexibility can be improved at the same time.

Description

Technical Field

[0001] This application relates to the field of filtration and impurity removal technology, and in particular to filtration devices and monomer purification systems for monomer purification. Background Technology

[0002] In the chemical industry, filtration and impurity removal technology plays a crucial role, especially in high-end applications where the purity requirements for chemical monomers are extremely stringent. Acrylic monomers, as an important class of chemical raw materials, are widely used in coatings, adhesives, plastics, and many other fields. However, the production process of acrylate monomers often involves the generation of various impurities and polymerization inhibitors. These impurities not only affect the purity of the monomers but may also adversely impact subsequent processing and the quality of the final product. Therefore, developing efficient acrylate monomer purification technologies is of great significance for improving product quality and meeting the demands of high-end applications.

[0003] In related technologies, the purification of acrylate monomers mainly employs two mainstream methods: vacuum distillation and alkaline washing.

[0004] Vacuum distillation, by reducing system pressure, causes the monomer to boil at a lower temperature, thereby separating the monomer from impurities. While this method can improve monomer purity to some extent, it faces significant technical bottlenecks. First, vacuum distillation typically requires heating, and acrylate monomers are temperature-sensitive; high temperatures can lead to unnecessary chemical reactions such as polymerization and decomposition, thus reducing product quality and yield. Second, different acrylate monomers have varying boiling points, making precise temperature control for efficient separation quite challenging, further limiting the effectiveness of vacuum distillation.

[0005] In contrast, the alkaline washing method removes impurities through a chemical reaction between the alkaline solution and the impurities. This method first uses an alkaline solution to wash the acrylate monomers containing impurities, then proceeds through separation, filtration, and drying to finally obtain the purified monomers. However, the alkaline washing method also faces several challenges. Firstly, the alkaline washing process is relatively complex, involving multiple steps such as rotary kettle operation and filtration. These steps are not only time-consuming but also increase operational difficulty and cost. Secondly, the drying process typically requires a long settling period to ensure sufficient evaporation of moisture and residual solvents from the monomers, further extending the production cycle and reducing production efficiency.

[0006] Given the various problems associated with vacuum distillation and alkaline washing methods, the development of efficient and convenient acrylate monomer purification techniques is of paramount importance. Therefore, to address these technical issues, the development of a filtration device and purification system for monomer purification is urgently needed. Summary of the Invention

[0007] Therefore, it is necessary to provide a filtration device and a monomer purification system for addressing the above-mentioned problems. This system not only enables rapid assembly of the entire purification system, but also achieves rapid filtration and purification while ensuring monomer purity through the synergistic effect of the first and second filter elements in the filtration device.

[0008] A filtration device for monomer purification, comprising:

[0009] A first filter element for initial filtration of monomers includes a monomer inlet disposed above the filter element, a purification substance support for loading purification substance, and a monomer outlet disposed below the filter element. The filter element is configured such that monomers pass through the monomer inlet and then through the purification substance support for initial filtration, and the monomers, after initial filtration, flow out from the monomer outlet.

[0010] The second filter element is used for a second filtration of the monomer flowing out of the monomer outlet. The second filter element includes a second filter element inlet sleeved outside the first filter element, a filling material support for filling with desiccant or purified substance, and a second filter element outlet disposed below the second filter element. The second filter element inlet is formed by the cavity formed by the filling material support and the first filter element. The second filter element is constructed such that the monomer flows through the filling material support after passing through the monomer outlet for a second filtration, and the monomer flows out of the monomer outlet from the second filter element outlet after the second filtration.

[0011] In one embodiment, the first filter element is a bottle structure with a rounded bottom, and at least one single outlet is provided at the bottom of the rounded first filter element.

[0012] In one embodiment, the purified substance support is configured as a hollow spherical structure with multiple through holes on the surface of the spherical structure. The through holes are used to allow monomers to be discharged when entering the first filter element, thereby achieving a filtration effect. The interior of the purified substance support is filled with purified substance.

[0013] In one embodiment, the aperture of the monomer outlet is 80 mesh to 400 mesh.

[0014] In one embodiment, the second filter element is an overall cylindrical bottle structure.

[0015] In one embodiment, the first filter element and the second filter element are detachably connected to facilitate replacement of the purification material support, desiccant, or purification material.

[0016] A monomer purification system, comprising:

[0017] A separating funnel has a separating funnel body and a separating funnel lower opening, wherein the separating funnel lower opening is used to connect to a converter;

[0018] The converter, the top inlet of which is connected to the lower outlet of the separatory funnel;

[0019] As described above, the inlet side of the filter device is connected to the bottom outlet of the converter, and the monomer is purified and impurities are removed through the first filter element and the second filter element in the filter device.

[0020] A sand core funnel, connected to the outlet of the second filter element, is used for rapid filtration via suction filtration; and

[0021] A filtrate collection device, wherein the bottom of the sand core funnel is connected to the filtrate collection device.

[0022] In one embodiment, a jacket is also included, which is disposed between the filter device and the sand core funnel to assist in fixing the connection between the outlet of the second filter element and the sand core funnel.

[0023] In one embodiment, both the lower opening of the separating funnel and the bottom outlet of the converter are frosted to ensure a tight seal.

[0024] In one embodiment, the separating funnel, converter, filter, sintered core funnel, and filtrate collection device are detachably connected.

[0025] The aforementioned filtration device and system for monomer purification achieve highly efficient purification and impurity removal of monomers through a two-stage filtration mechanism: a purification material support section within the first filter element and a desiccant or purification material within the second filter element. The monomer first passes through the first filter layer formed by the purification material support section, where impurities are effectively retained. It then enters the second filter element through the monomer outlet, where it is again filtered by the desiccant or purification material, further ensuring the purity of the monomer.

[0026] This application also has the following advantages:

[0027] (1) The first filter element in this application adopts a bottle structure with a rounded bottom, which facilitates the uniform distribution of monomers inside and their smooth flow out. At the same time, the setting of the monomer outlet and the selection of the pore size (80 mesh to 400 mesh) not only ensures the filtration efficiency, but also avoids the problem of insufficient filtration or clogging caused by excessively large or small pore sizes.

[0028] (2) The second filter element in this application has an overall cylindrical bottle structure and is detachably connected to the first filter element, which facilitates the replacement of the purification material support, desiccant or purification material, thereby improving the flexibility and service life of the device.

[0029] (3) The monomer purification system of this application integrates multiple components such as a separatory funnel, converter, filter device, sintered sand funnel and filtrate collection device, forming a complete and efficient purification process; the components are assembled by detachable connection, which not only ensures the stability and sealing of the system, but also facilitates the maintenance of the system and the replacement of components.

[0030] (4) The sand core funnel in the monomer purification system of this application enables rapid filtration through suction filtration, greatly improving filtration efficiency. Simultaneously, the two-stage filtration mechanism of the filtration device ensures rapid purification and impurity removal of the monomer.

[0031] (5) The bottom outlet of the separatory funnel and the bottom outlet of the converter in this application are both designed with a frosted port to ensure the sealing of the connection and avoid leakage problems that may occur during the purification process. This not only ensures the purification effect, but also improves the safety of the system. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the overall structure of the purification system in one embodiment of this application.

[0033] Figure 2 This is a schematic diagram of the structure of the first filter element in one embodiment of this application from a bottom view.

[0034] Figure label:

[0035] 100. Separating funnel; 200. Converter; 300. Filtration device; 400. Sand core funnel; 500. Jacket; 600. Filtrate collection device;

[0036] 110. Separating funnel body; 120. Separating funnel bottom opening;

[0037] 310. Second filter element; 320. First filter element; 330. Purified substance support; 340. Monomer outlet; 350. Monomer inlet; 360. Second filter element inlet; 370. Second filter element outlet. Detailed Implementation

[0038] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0039] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0040] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0041] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0042] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0043] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0044] Combination Figures 1 to 2 ,in, Figure 1 A schematic diagram of the overall structure of the purification system in one embodiment of this application is shown; Figure 2 This shows a schematic diagram of the structure of the first filter element 320 in one embodiment of this application from a bottom view.

[0045] This application provides a filtration device 300 for monomer purification, including a first filter element 320 and a second filter element 310;

[0046] In some embodiments, the first filter element 320 is used for the first filtration of monomers, and includes a monomer inlet 350 disposed above the first filter element 320, a purification substance support 330 for filling with purification substance, and a monomer outlet 340 disposed below the first filter element 320; the first filter element 320 is configured such that the monomers flow through the purification substance support 330 after passing through the monomer inlet 350 for the first filtration, and the monomers flow out from the monomer outlet 340 after the first filtration;

[0047] In some embodiments, the first filter element 320 is a bottle structure with a rounded bottom, which facilitates the uniform distribution of monomers inside and their smooth outflow. The pore size of the monomer outlet 340 is 80 to 400 mesh, which ensures filtration efficiency while avoiding insufficient filtration or clogging caused by pore sizes that are too large or too small.

[0048] In some embodiments, the purification material support 330 is configured as a hollow spherical structure with multiple through holes on the surface of the spherical structure. The through holes are used to allow the monomer to be discharged when it enters the first filter element 320, so as to achieve the filtration function. The interior of the purification material support 330 is filled with purification materials, such as activated carbon, molecular sieves, etc., for adsorbing or filtering impurities in the monomer.

[0049] In some embodiments, the second filter element 310 is used for a second filtration of monomers flowing out through the monomer outlet 340; further, the second filter element 310 includes a second filter inlet 360 sleeved outside the first filter element 320, a filling support (not directly shown in the figure, located inside the second filter element 310) for filling with desiccant or purified substance, and a second filter outlet 370 disposed below the second filter element 310. The second filter inlet 360 is formed by a cavity formed by the filling support and the first filter element 320. The second filter element 310 is configured such that the monomers flow through the filling support after passing through the monomer outlet 340 for a second filtration, and the monomers flow out from the second filter outlet 370 after the second filtration.

[0050] Furthermore, the second filter element 310 is a cylindrical bottle structure and is detachably connected to the first filter element 320, such as by threaded connection or snap-fit ​​connection, so as to facilitate the replacement of the purified substance support 330, desiccant or purified substance, thereby improving the flexibility and service life of the device.

[0051] In some embodiments, the first filter element 320 and the second filter element 310 are detachably connected. This design facilitates the user to replace the purification substance support 330, the desiccant, or the purification substance, thereby improving the flexibility and service life of the device.

[0052] In actual operation, after the monomer enters the first filter element 320, it passes through the first filter layer formed by the purification material support part 330, and then flows out from the monomer outlet 340 at the bottom of the first filter element 320 and enters the second filter element 310; the desiccant or purification material inside the second filter element 310 forms the second filter layer, and after the monomer passes through the second filter layer, it flows out from the outlet at the bottom of the second filter element 310.

[0053] Please continue reading. Figure 1 In other embodiments, a monomer purification system is also provided, including a separatory funnel 100, a converter 200, a sintered sand funnel 400, a jacket 500, a filtrate collection device 600, and the aforementioned filtration device 300.

[0054] In some embodiments, the separating funnel 100 has a separating funnel body 110 and a separating funnel lower opening 120, wherein the separating funnel lower opening 120 is used to connect to the converter 200.

[0055] Furthermore, the lower opening 120 of the separatory funnel is made of frosted glass to ensure the airtight connection between the lower opening 120 of the separatory funnel and the converter 200, avoiding possible leakage problems during the purification process and improving the safety and purification effect of the purification system.

[0056] In some embodiments, the bottom outlet of the converter 200 is connected to the filter device 300;

[0057] Furthermore, the bottom outlet of the converter 200 also adopts a frosted outlet design to ensure the sealing of the connection between the converter 200 and the filter device 300.

[0058] In some embodiments, the filtration device 300 employs the above-described two-stage filtration mechanism, including a first filter element 320 and a second filter element 310.

[0059] Furthermore, after passing through the first filter layer formed by the purification material support 330 inside the first filter element 320, the monomer flows out from the monomer outlet 340 at the bottom of the first filter element 320 and enters the second filter element 310; then, the monomer passes through the second filter layer formed by the desiccant or purification material inside the second filter element 310, and finally flows out from the bottom outlet of the second filter element 310; the first stage of filtration is a preliminary filtration performed by the first filter layer formed by the purification material support 330, and the second stage of filtration is a further purification of the monomer by the desiccant or purification material inside the second filter element 310, thereby achieving efficient purification and impurity removal of the monomer.

[0060] In some embodiments, the bottom outlet of the filtration device 300 is connected to the sand core funnel 400; specifically, the sand core funnel 400 is used for rapid filtration by suction filtration, which greatly improves filtration efficiency and shortens purification time.

[0061] In some embodiments, the bottom of the core funnel 400 is connected to the filtrate collection device 600; specifically, the filtrate collection device 600 is used to collect the filtered and purified monomers, and the filtrate collection device 600 is also designed to facilitate the subsequent storage and use of the monomers.

[0062] In some embodiments, a jacket 500 is provided between the filter device 300 and the sand core funnel 400; specifically, the jacket 500 is a sand core funnel clamp; the jacket 500 is used to assist in fixing the connection between the filter device 300 and the sand core funnel 400, thereby enhancing the stability of the system and avoiding loosening or leakage problems that may occur between the filter device 300 and the sand core funnel 400 during the filtration process.

[0063] In some embodiments, the separatory funnel 100, converter 200, filter device 300, sintered funnel 400 and filtrate collection device 600 of this application are all assembled with a detachable connection. This detachable design facilitates the maintenance of the entire purification system and the replacement of components, reduces the maintenance cost of the purification system and the time cost required for filtration, and improves the efficiency and flexibility of the purification system.

[0064] In practice, the working principle of this application is as follows:

[0065] The monomer enters the converter 200 through the separating funnel 100, and then flows into the first filter element 320 of the filter device 300;

[0066] When the monomer passes through the first filter layer formed by the purification material support 330, impurities are effectively retained;

[0067] The monomer that has passed the initial filtration flows out from the monomer outlet 340 and enters the second filter element 310, where it is filtered again by the desiccant or purified substance inside the second filter element 310.

[0068] The purified monomer flows out from the bottom outlet of the second filter element 310 and is rapidly filtered through the sand core funnel 400;

[0069] The monomers purified by the sand core funnel 400 are collected in the filtrate collection device 600.

[0070] In summary, the filtration device 300 of this application comprises a first-layer filtration formed by the purification substance support 330 within the first filter element 320 and a second-layer filtration formed by the desiccant or purification substance within the second filter element 310. Through the synergistic effect of the first and second layers of filtration, a two-stage filtration mechanism is formed, achieving efficient purification and impurity removal of the monomer. The monomer first passes through the first filter layer formed by the purification substance support 330, where impurities are effectively retained. Then, it enters the second filter element 310 through the monomer outlet 340, where it again passes through the desiccant or purification substance. The filtration of substances further ensures the purity of the monomer. The monomer purification system of this application integrates multiple components, including a separating funnel 100, a converter 200, a filter device 300, a sintered glass funnel 400, and a filtrate collection device 600, forming a complete and efficient purification process. The components are assembled through detachable connections, ensuring system stability and sealing while facilitating system maintenance and component replacement. Furthermore, the use of the sintered glass funnel 400 allows for rapid filtration via vacuum filtration, significantly improving filtration efficiency. Simultaneously, the two-stage filtration mechanism of the filter device 300 ensures rapid purification and impurity removal of the monomer. Finally, the bottom outlets of the separating funnel 120 and the converter 200 in the monomer purification system both feature frosted glass joints, ensuring the airtightness of the connections between components and preventing potential leakage during purification. This not only guarantees purification effectiveness but also enhances system safety.

[0071] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0072] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A filtration device for monomer purification, characterized in that, include: A first filter element is used for the first filtration of monomers. The first filter element includes a monomer inlet disposed above the first filter element, a purified substance support for filling purified substances, and a monomer outlet disposed below the first filter element. The first filter element is configured such that the monomers flow through the purified substance support after passing through the monomer inlet for the first filtration, and the monomers flow out from the monomer outlet after the first filtration. as well as The second filter element is used for a second filtration of the monomer flowing out of the monomer outlet. The second filter element includes a second filter element inlet sleeved outside the first filter element, a filling material support for filling with desiccant or purified substance, and a second filter element outlet disposed below the second filter element. The second filter element inlet is formed by the cavity formed by the filling material support and the first filter element. The second filter element is constructed such that the monomer flows through the filling material support after passing through the monomer outlet for a second filtration, and the monomer flows out of the monomer outlet from the second filter element outlet after the second filtration.

2. The filtration device for monomer purification according to claim 1, characterized in that, The first filter element is a bottle structure with a rounded bottom, and at least one single outlet is provided at the bottom of the rounded first filter element.

3. The filtration device for monomer purification according to claim 1, characterized in that, The purified substance support is configured as a hollow spherical structure with multiple through holes on its surface. These through holes allow monomers to be discharged when entering the first filter element, thus achieving a filtration effect. The interior of the purified substance support is filled with purified substance.

4. The filtration device for monomer purification according to claim 2, characterized in that, The aperture of the monomer outlet is 80 mesh to 400 mesh.

5. The filtration device for monomer purification according to claim 1, characterized in that, The second filter element has a cylindrical bottle-shaped structure.

6. The filtration device for monomer purification according to claim 1, characterized in that, The first and second filter elements are detachably connected to facilitate the replacement of the purification material support, desiccant, or purification material.

7. A monomer purification system, characterized in that, include: A separating funnel has a separating funnel body and a separating funnel lower opening, wherein the separating funnel lower opening is used to connect to a converter; The converter, the top inlet of which is connected to the lower outlet of the separatory funnel; The filtration device according to any one of claims 1 to 6, wherein the inlet side of the filtration device is connected to the bottom outlet of the converter, and the monomer is purified and impurities removed through the first filter element and the second filter element in the filtration device; A sand core funnel, connected to the outlet of the second filter element, is used for rapid filtration via suction filtration; and A filtrate collection device, wherein the bottom of the sand core funnel is connected to the filtrate collection device.

8. The monomer purification system according to claim 7, characterized in that, It also includes a jacket, which is disposed between the filter device and the sand core funnel, and is used to help fix the connection between the outlet of the second filter element and the sand core funnel.

9. The monomer purification system according to claim 7, characterized in that, Both the lower opening of the separating funnel and the bottom outlet of the converter are frosted to ensure a tight seal.

10. The monomer purification system according to any one of claims 7 to 9, characterized in that, The separating funnel, converter, filter, sand core funnel, and filtrate collection device are detachably connected.

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