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CN-224207498-U - Dimethyl carbonate raw material impurity filtering and purifying equipment

CN224207498UCN 224207498 UCN224207498 UCN 224207498UCN-224207498-U

Abstract

The utility model discloses a dimethyl carbonate raw material impurity filtering and purifying device, which belongs to the technical field of experimental equipment and comprises a filtering component, two groups of storage components and a rotating component, wherein the filtering component comprises a glass tube, a positioning cotton piece and active carbon, the storage components comprise spherical bottles, a first sealing plug is fixedly arranged at the bottom of each spherical bottle and is in sealed connection with two ends of the glass tube, and a through hole is formed in the center of each first sealing plug.

Inventors

  • Cheng Yanfan

Assignees

  • 上海鼎黔生物医药有限公司

Dates

Publication Date
20260508
Application Date
20250604

Claims (8)

  1. 1. The device for filtering and purifying impurities of the dimethyl carbonate raw material is characterized by comprising a filtering component, wherein the filtering component comprises a glass tube (1), a positioning cotton piece (2) and active carbon (3); The glass tube storage device comprises a glass tube (1) and is characterized by further comprising two groups of storage components, wherein each storage component comprises a spherical bottle (4), a first sealing plug (5) is fixedly arranged at the bottom of each spherical bottle (4), the first sealing plugs (5) are in sealing connection with the two ends of the glass tube (1), and a through hole (6) is formed in the center of each first sealing plug (5); Still including the rotating assembly who is used for rotatory filter component, rotating assembly includes retainer plate (7), retainer plate (7) fixed mounting is in the centre of glass pipe (1), retainer plate (7) are connected with rotation seat (9) rotation through pivot (8).
  2. 2. The dimethyl carbonate raw material impurity filtering and purifying device according to claim 1, wherein two groups of limiting rings (10) are arranged at two ends of the inside of the glass tube (1), positioning cotton sheets (2) are filled at two ends of the inside of the glass tube (1), and one side of each positioning cotton sheet (2) is abutted against each limiting ring (10).
  3. 3. The device for filtering and purifying impurities from raw materials of dimethyl carbonate according to claim 2 is characterized in that activated carbon (3) is filled in the glass tube (1), and the activated carbon (3) is arranged between two groups of positioning cotton sheets (2).
  4. 4. The dimethyl carbonate raw material impurity filtering and purifying device according to claim 1 is characterized in that a filling port (11) is formed in the top of the spherical bottle (4), and a second sealing plug (12) is inserted in the filling port (11) in a sealing manner.
  5. 5. The device for filtering and purifying impurities in raw materials of dimethyl carbonate according to claim 4, wherein a pressure relief hole (13) is formed in the middle of the second sealing plug (12), and a sealing plug (14) is inserted in the pressure relief hole (13) in a sealing manner.
  6. 6. The dimethyl carbonate raw material impurity filtering and purifying device according to claim 1, wherein two groups of limiting plates (15) are respectively arranged on two sides of the rotating seat (9), and the limiting plates (15) are coaxially arranged with the rotating shaft (8) and fixedly connected.
  7. 7. The device for filtering and purifying impurities from raw materials of dimethyl carbonate according to claim 6, wherein the top thread of the rotating seat (9) is provided with a tightening screw (16), and the bottom of the tightening screw (16) is abutted against the rotating shaft (8).
  8. 8. The device for filtering and purifying impurities from raw materials of dimethyl carbonate according to claim 7, wherein the rotating seat (9) is fixedly arranged at the top of the supporting column (17), and the bottom of the supporting column (17) is fixedly connected with the bottom plate (18).

Description

Dimethyl carbonate raw material impurity filtering and purifying equipment Technical Field The utility model relates to the technical field of experimental equipment, in particular to a dimethyl carbonate raw material impurity filtering and purifying device. Background Dimethyl carbonate is a nontoxic, environment-friendly chemical raw material with excellent performance and wide application, can be used as a solvent, a reaction medium or a raw material to participate in drug synthesis and preparation development, and is prepared by a transesterification method at present, but methanol used in the transesterification method possibly has the problem of insufficient purity, so that formaldehyde is mixed in the prepared dimethyl carbonate, and in a laboratory, the mixing of the dimethyl carbonate with the formaldehyde can interfere with experimental results, cause side reaction and influence detection accuracy, and possibly form explosive mixture or cause reaction runaway, so that DMC purity needs to be strictly controlled and operation flow is standardized. In the laboratory, activated carbon is filled into a glass tube, dimethyl carbonate is added from the top of the glass tube to the bottom for taking, and the purpose of removing formaldehyde in the dimethyl carbonate is achieved by repeating the steps for a plurality of times, so that the dimethyl carbonate is easy to splash on the surface of an operating table or experimental equipment in the process, the experimental environment is polluted, meanwhile, the experimental materials are wasted, and the problem is not solved in the prior art. Disclosure of utility model The utility model aims to provide the dimethyl carbonate raw material impurity filtering and purifying equipment, which is convenient for rotating the glass tube by arranging the rotating assembly, so that dimethyl carbonate in two groups of spherical bottles repeatedly passes through the glass tube for multiple times, formaldehyde is filtered for multiple times by using active carbon in the glass tube, the whole process is carried out in a relatively sealed environment, the pollution to experimental environment caused by leakage of the dimethyl carbonate is avoided, and the waste of experimental materials is also prevented, so that the problems in the background technology are solved. In order to achieve the above purpose, the present utility model provides the following technical solutions: the dimethyl carbonate raw material impurity filtering and purifying device comprises a filtering component, wherein the filtering component comprises a glass tube, a positioning cotton piece and active carbon; The glass tube storage device comprises a glass tube, and is characterized by further comprising two groups of storage assemblies, wherein each storage assembly comprises a spherical bottle, a first sealing plug is fixedly arranged at the bottom of the spherical bottle, the first sealing plug is in sealing connection with two ends of the glass tube, and a through hole is formed in the center of the first sealing plug; Still including the rotating assembly who is used for rotatory filter component, rotating assembly includes the retainer plate, retainer plate fixed mounting is in the centre of glass pipe, the retainer plate is connected with rotating the seat rotation through the pivot. Preferably, two groups of limiting rings are fixedly arranged at two ends of the inner part of the glass tube, positioning cotton sheets are filled at two ends of the inner part of the glass tube, and one side of each positioning cotton sheet is abutted against each limiting ring. Preferably, activated carbon is filled in the glass tube, and the activated carbon is arranged between two groups of positioning cotton sheets. Preferably, a filling port is formed in the top of the spherical bottle, and a second sealing plug is inserted in the filling port in a sealing manner. Preferably, a pressure relief hole is formed in the middle of the second sealing plug, and a sealing plug is inserted in the pressure relief hole in a sealing manner. Preferably, two groups of limiting plates are respectively arranged on two sides of the rotating seat, and the limiting plates and the rotating shaft are coaxially arranged and fixedly connected. Preferably, the top thread of the rotating seat is provided with a tight supporting screw, and the bottom of the tight supporting screw is abutted against the rotating shaft. Preferably, the rotating seat is fixedly arranged at the top of the supporting column, and the bottom of the supporting column is fixedly connected with the bottom plate. Compared with the prior art, the utility model has the beneficial effects that: The utility model discloses a set up rotating assembly, simple structure, convenient and practical is convenient for rotate the glass pipe, realizes that the dimethyl carbonate in the two sets of spherical bottles is repeated many times through the glass pipe, utilizes the act