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CN-224220746-U - Preparation device of 4-chloromethyl-5-methyl-1, 3 dioxole-2-ketone

CN224220746UCN 224220746 UCN224220746 UCN 224220746UCN-224220746-U

Abstract

The utility model provides a preparation device of 4-chloromethyl-5-methyl-1, 3-dioxole-2-one, which relates to a device in the technical field of preparation of 4-chloromethyl-5-methyl-1, 3-dioxole-2-one, and comprises a preparation table and a gas absorption bottle arranged at one side of the table top of the preparation table, wherein a switching valve penetrating through the table top of the preparation table is arranged at the bottle bottom of the gas absorption bottle, an evaporation tank communicated with the switching valve is fixedly arranged at the bottom of the preparation table, a heating plate for evaporating a solvent is fixedly arranged in the evaporation tank, the evaporation tank is connected with the evaporation tank through the switching valve, so that saturated solvent evaporation in the gas absorption bottle can be realized, and the solvent in the solvent tank can be timely supplemented into the gas absorption bottle by a pump body, so that the automatic supplementation, emission and evaporation of the solvent in the gas absorption bottle can be realized, and the preparation efficiency is convenient to ensure.

Inventors

  • ZHENG XUAN
  • HE CONG
  • WANG JIANWU

Assignees

  • 浙江希尔化工股份有限公司

Dates

Publication Date
20260512
Application Date
20250427

Claims (7)

  1. 1. The preparation device of the 4-chloromethyl-5-methyl-1, 3-dioxole-2-one comprises a preparation table (1) and a gas absorption bottle (2) arranged on one side of the table top of the preparation table (1), and is characterized in that a switching valve (10) penetrating through the table top of the preparation table (1) is arranged at the bottle bottom of the gas absorption bottle (2), an evaporation tank (7) communicated with the switching valve (10) is fixedly arranged at the table bottom of the preparation table (1), a heating plate (8) for evaporating a solvent is fixedly arranged in the evaporation tank (7), a solvent tank (5) is arranged on one side of the table bottom of the preparation table (1), and a pump body (3) for communicating the solvent tank (5) with the gas absorption bottle (2) is arranged on the table top of the preparation table (1), and a condenser (6) for connecting the evaporation tank (7) and the solvent tank (5) is arranged at the table bottom of the preparation table (1).
  2. 2. The preparation device of 4-chloromethyl-5-methyl-1, 3-dioxole-2-one according to claim 1, wherein a connecting pipe (4) is integrally formed at the position, close to a bottle opening, of a bottle body of the gas absorption bottle (2), and the connecting pipe (4) is connected with a liquid outlet end of the pump body (3) through a flange.
  3. 3. The apparatus for producing 4-chloromethyl-5-methyl-1, 3-dioxol-2-one according to claim 1, wherein the inlet of the condenser (6) extends into the evaporation tank (7) and the outlet of the condenser (6) extends into the solvent tank (5).
  4. 4. The preparation device of 4-chloromethyl-5-methyl-1, 3-dioxole-2-one according to claim 1, wherein scraping plates (9) are inserted into the positions, close to the top edges, of the tank walls on the two sides of the evaporation tank (7), and the bottom edges and the two sides of the scraping plates (9) are respectively connected with the upper surface of a heating plate (8) and the tank walls on the inner side of the evaporation tank (7) in a sliding manner.
  5. 5. The apparatus for preparing 4-chloromethyl-5-methyl-1, 3-dioxol-2-one according to claim 4, wherein the evaporation tank (7) is rotatably connected with a screw rod (11) which is in threaded penetrating connection with the surface of the scraper (9) along the length direction of the heating plate (8).
  6. 6. The device for preparing 4-chloromethyl-5-methyl-1, 3-dioxol-2-one according to claim 5, wherein a sealing plate (16) is embedded and hinged on the upper surface of the heating plate (8) at one end of the screw rod (11) through a torsion spring, a connecting rod (15) is fixedly arranged on the swinging edge of the upper surface of the sealing plate (16), and a wedge block (13) abutting against the top end of the connecting rod (15) is fixedly arranged on one surface of the scraping plate (9).
  7. 7. The preparation device of 4-chloromethyl-5-methyl-1, 3-dioxol-2-one according to claim 5, wherein an arc plate (14) is fixedly arranged at the bottom of the evaporation tank (7) below the sealing plate (16), one side of the evaporation tank (7) close to the arc plate (14) is arranged at the position below the sealing plate (16) in a hollowed-out manner, and a solid tank (12) is arranged at the bottom of the preparation table (1) below the hollowed-out position at the side edge of the evaporation tank (7).

Description

Preparation device of 4-chloromethyl-5-methyl-1, 3 dioxole-2-ketone Technical Field The utility model relates to the technical field of preparation of 4-chloromethyl-5-methyl-1, 3-dioxole-2-one, in particular to a preparation device of 4-chloromethyl-5-methyl-1, 3-dioxole-2-one. Background The 4-chloromethyl-5-methyl-1, 3-dioxol-2-one is an organic compound, related equipment such as a device for preparing the 4-chloromethyl-5-methyl-1, 3-dioxol-2-one in the prior art is needed in the preparation process, the publication number is CN208378760U, when the device is used, firstly, the second injection port and the third injection port at the top of the three-neck flask are connected and installed with the air duct and the constant pressure dropping funnel through a connecting structure, and the hoses of the air duct and the constant pressure dropping funnel are sealed and reinforced through fastening strips; after the reaction is finished, methylene dichloride, p-methylphenyl selenium chloride and DMDO are added into the three-neck flask through the first injection opening, the reaction liquid is stirred through the magnetic stirrer, sulfonyl chloride is dripped into the three-neck flask through the constant-pressure dripping funnel, gas generated in the reaction process is introduced into the gas absorption bottle through the gas guide pipe to be absorbed, the solvent is removed through evaporation after reacting for a certain time according to the amount of the added reactant, and the required synthetic product is obtained. However, in this solution, the materials added through the first injection port and the materials added through the constant pressure dropping funnel can be automatically controlled by known related devices, such as the cooperation of a pump and a multi-way valve, that is, continuous addition is realized for a long time, but the materials are used as the end of the reaction, that is, the gas absorption bottle needs to be replaced by a person after being used for a period of time, and the preparation efficiency is affected by the process of manually replacing the gas absorption bottle. Disclosure of utility model The utility model aims to solve the problems in the prior art and provides a device for preparing 4-chloromethyl-5-methyl-1, 3-dioxole-2-one. In order to achieve the purpose, the preparation device of the 4-chloromethyl-5-methyl-1, 3-dioxole-2-one comprises a preparation table and a gas absorption bottle arranged on one side of the table top of the preparation table, wherein a switching valve penetrating through the table top of the preparation table is arranged at the bottle bottom of the gas absorption bottle, an evaporation tank communicated with the switching valve is fixedly arranged at the bottom of the preparation table, a heating plate for evaporating a solvent is fixedly arranged in the evaporation tank, a solvent tank is arranged on one side of the bottom of the preparation table, a pump body for communicating the solvent tank with the gas absorption bottle is arranged on the table top of the preparation table, and a condenser for connecting the evaporation tank and the solvent tank is arranged at the bottom of the preparation table. Preferably, the gas absorption bottle body is provided with a connecting pipe which is integrally formed at the position close to the bottle mouth, and the connecting pipe is connected with the liquid outlet end of the pump body through a flange. Preferably, the condenser steam inlet extends into the evaporation tank and the condenser liquid outlet extends into the solvent tank. Preferably, scraping plates are inserted into the box walls on the two sides of the evaporation box close to the top edge, and the bottom edges and the two sides of the scraping plates are respectively connected with the upper surface of the heating plate and the box walls on the inner side of the evaporation box in a sliding manner. Preferably, the evaporation box is rotationally connected with a screw rod which runs through the surface of the scraping plate along the length direction of the heating plate. Preferably, the upper surface of the heating plate is provided with a sealing plate in a position at one end of the screw rod through a torsional spring in an embedded manner, a connecting rod is fixedly arranged on the swinging edge of the upper surface of the sealing plate, and a wedge block which is abutted to the top end of the connecting rod is fixedly arranged on one surface of the scraping plate. Preferably, the evaporation tank bottom is located the closing plate below position fixed mounting has the arc, evaporation tank is close to arc one side and is located closing plate below position fretwork setting, preparation platform bottom is located evaporation tank side fretwork department below and is provided with the solid case. Compared with the prior art, the utility model has the advantages and positive effects that, 1. According to the utility model, t