An isobornyl acetate esterification device

Abstract

The utility model discloses an esterification device for isobornyl acetate, including temperature -adjusting cauldron, discharge header, material pump, circulating pipe, discharge pipe, reaction column and reflux pipe, the outer wall of temperature -adjusting cauldron is provided with heating coil, one end of discharge header is connected temperature -adjusting cauldron's bottom, the other end of discharge header is connected material pump, one end of discharge pipe and one end of circulating pipe all are connected material pump, the other end of circulating pipe is connected in reaction column's bottom, be provided with first filter screen, catalytic filler and second filter screen in reaction column, first filter screen with second filter screen are arranged in the interval of up and down to form to have the reaction cavity in reaction column, catalytic filler is located in reaction cavity.

Description

Technical Field

[0001] This utility model belongs to the technical field of resin production equipment, specifically relating to an esterification device for isoborneol acetate. Background Technology

[0002] Isobornyl acetate is mainly used in fragrances, coatings, and other fields. It is obtained through esterification of camphene and acetic acid in the presence of a solid acid catalyst. Current preparation equipment primarily uses stirred reactors. Camphene and acetic acid are added to the reactor in a specific ratio, followed by a measured amount of solid acid catalyst for stirring. After the reaction is complete, the material is discharged from the bottom of the reactor through a filter, while the catalyst remains in the reactor to catalyze the next batch of reactions. This type of equipment easily creates catalyst dead zones, preventing the catalyst from catalyzing subsequent batches or causing significant inconvenience for filter maintenance. Discharge is also prone to clogging, affecting production efficiency. Furthermore, the stirring process can easily damage catalyst particles, allowing fine catalyst particles to pass through the filter and enter the material, affecting the quality of subsequent processes. Utility Model Content

[0003] To address the aforementioned technical problems, this utility model provides an esterification device for isoborneol acetate, which solves the problems of low production efficiency and catalyst damage in existing isoborneol acetate esterification reactors. This esterification device for isoborneol acetate can effectively improve production efficiency, catalyst lifespan, and the quality of esterified products.

[0004] This utility model discloses an esterification device for isoborneol acetate, comprising a temperature-controlled vessel, a main discharge pipe, a material pump, a circulation pipe, a discharge pipe, a reaction column, and a reflux pipe. The outer wall of the temperature-controlled vessel is equipped with a heating coil. One end of the main discharge pipe is connected to the bottom of the temperature-controlled vessel, and the other end is connected to the material pump. One end of the discharge pipe and one end of the circulation pipe are both connected to the material pump. The other end of the circulation pipe is connected to the bottom of the reaction column. The reaction column is equipped with a first filter screen, a catalytic packing material, and a second filter screen. The first and second filter screens are spaced apart vertically to form a reaction chamber in the reaction column. The catalytic packing material is located in the reaction chamber. One end of the reflux pipe is connected to the top of the reaction column, and the other end is connected to the top of the temperature-controlled vessel.

[0005] Furthermore, the temperature-regulating vessel is equipped with a stirring shaft, and a motor is mounted on the temperature-regulating vessel, with the motor connected to the stirring shaft.

[0006] Furthermore, a filter is installed on the discharge main pipe.

[0007] Furthermore, a first control valve is provided on the discharge pipe, and a second control valve is provided on the circulation pipe.

[0008] In the esterification apparatus for isoborneol acetate, a heating coil is installed on the outer wall of the temperature-controlled vessel, which can conveniently heat or cool the material inside the vessel, control the reaction temperature, and ensure that the esterification reaction proceeds at a suitable temperature, guaranteeing the smooth progress and rate of the reaction, and improving product quality and yield. A circulation pipe connects the material pump to the bottom of the reaction column, allowing material to enter the reaction column from the temperature-controlled vessel for reaction. This circulation method ensures that the material fully contacts the catalytic packing, improving the sufficiency and efficiency of the reaction. The reaction column is equipped with a first filter, a catalytic packing, and a second filter, spaced vertically to form a reaction chamber. The catalytic packing is located within this chamber, forming a fluidized bed. This structure avoids the problem of catalyst dead zones in existing technologies, ensuring that the catalyst fully participates in the reaction, and also facilitates filter maintenance. Furthermore, this structure effectively avoids mechanical damage to the catalyst particles caused by stirring, preventing tiny catalyst particles from being mixed into the material through the filter, thus ensuring the quality of the next process. The reflux pipe connects the top of the reaction chamber and the top of the temperature-controlled vessel, allowing the reacted material to flow back into the temperature-controlled vessel, thus achieving material recycling, further improving the conversion rate, reducing raw material waste, and increasing production efficiency. Attached Figure Description

[0009] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0010] Figure 1 This is a schematic diagram of an esterification apparatus for isoborneol acetate. Detailed Implementation

[0011] This utility model discloses an esterification device for isoborneol acetate, which can effectively improve production efficiency, catalyst lifespan, and the quality of esterified products.

[0012] The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, what is described is only a part of the embodiments of this utility model, and not all of the embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0013] See Figure 1As shown, this utility model discloses an esterification device for isoborneol acetate, including a temperature-controlled vessel 2, a main discharge pipe 6, a material pump 16, a circulation pipe 9, a discharge pipe 14, a reaction column 12, and a reflux pipe 5. The outer wall of the temperature-controlled vessel 2 is provided with a heating coil 4. One end of the main discharge pipe 6 is connected to the bottom of the temperature-controlled vessel 2, and the other end of the main discharge pipe 6 is connected to the material pump 16. One end of the discharge pipe 14 and one end of the circulation pipe 9 are both connected to the material pump 16. The other end of the circulation pipe 9 is connected to the bottom of the reaction column 12. The reaction column 12 is provided with a first filter screen 13, a catalytic packing 11, and a second filter screen 10. The first filter screen 13 and the second filter screen 10 are arranged vertically at intervals to form a reaction chamber in the reaction column 12. The catalytic packing 11 is located in the reaction chamber. One end of the reflux pipe 5 is connected to the top of the reaction column, and the other end of the reflux pipe 5 is connected to the top of the temperature-controlled vessel 2.

[0014] In the esterification apparatus for isoborneol acetate, a heating coil 4 is installed on the outer wall of the temperature-controlled vessel 2, which can conveniently heat or cool the material inside the temperature-controlled vessel 2, control the reaction temperature, and ensure that the esterification reaction is carried out at a suitable temperature, thus ensuring the smooth progress and reaction rate of the reaction and improving product quality and yield. A circulation pipe 9 connects the material pump 16 and the bottom of the reaction column 12, allowing the material to enter the reaction column 12 from the temperature-controlled vessel 2 for reaction. Through this circulation method, the material can fully contact the catalytic packing 11, improving the sufficiency and efficiency of the reaction. The reaction column 12 is equipped with a first filter 13, a catalytic packing 11, and a second filter 10, spaced vertically to form a reaction chamber. The catalytic packing 11 is located within this chamber, forming a fluidized bed. This structure avoids the problem of catalyst dead zones in existing technologies, ensuring that the catalyst can fully participate in the reaction, and also facilitating the maintenance of the filter screens. Furthermore, this structure effectively avoids mechanical damage to the catalyst particles caused by stirring, preventing tiny catalyst particles from being mixed into the material through the filter screen, thereby ensuring the quality of the next process. The reflux pipe 5 connects the top of the reaction chamber and the top of the temperature-controlled vessel 2, allowing the reacted material to flow back into the temperature-controlled vessel 2, thus realizing the material recycling reaction, further improving the reaction conversion rate, reducing raw material waste, and improving production efficiency.

[0015] The temperature-regulating vessel 2 is equipped with a stirring shaft 3 and a motor 1. The motor 1 is connected to the stirring shaft 3. Driven by the motor 1, the stirring shaft 3 can stir the material in the temperature-regulating vessel 2, making the material more uniformly mixed and effectively improving the heating efficiency of the material.

[0016] The discharge main pipe 6 is equipped with a filter 7, which can filter the material output from the temperature control vessel 2, remove impurities and particles that may exist in the material, prevent these impurities from entering the subsequent reaction column 12 or other equipment, avoid clogging or damage to the equipment, and at the same time improve the purity of the product and ensure product quality.

[0017] The discharge pipe 14 is equipped with a first control valve 15, and the circulation pipe 9 is equipped with a second control valve 8.

[0018] By controlling the opening and closing of the first control valve 15 and the second control valve 8, the flow direction and flow rate of materials can be flexibly controlled. For example, at the start of the reaction, the second control valve 8 on the circulation pipe 9 can be opened to allow materials to enter the reaction column 12 for reaction; when discharge is required, the first control valve 15 on the discharge pipe 14 can be opened to discharge the product. This control method enables precise control of materials according to actual production needs, improves the flexibility and controllability of the production process, helps optimize the production process, and improves production efficiency.

[0019] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications and substitutions should be considered within the protection scope of the present invention.

Claims

1. An esterification apparatus for isoborneol acetate, characterized in that, The device includes a temperature-controlled vessel, a main discharge pipe, a material pump, a circulation pipe, a discharge pipe, a reaction column, and a reflux pipe. The outer wall of the temperature-controlled vessel is equipped with a heating coil. One end of the main discharge pipe is connected to the bottom of the temperature-controlled vessel, and the other end is connected to the material pump. One end of the discharge pipe and one end of the circulation pipe are both connected to the material pump. The other end of the circulation pipe is connected to the bottom of the reaction column. The reaction column is equipped with a first filter screen, a catalytic packing material, and a second filter screen. The first and second filter screens are spaced apart vertically to form a reaction chamber within the reaction column. The catalytic packing material is located within the reaction chamber. One end of the reflux pipe is connected to the top of the reaction column, and the other end is connected to the top of the temperature-controlled vessel.

2. The esterification apparatus for isoborneol acetate according to claim 1, characterized in that, The temperature-regulating vessel is equipped with a stirring shaft, and a motor is mounted on the temperature-regulating vessel, with the motor connected to the stirring shaft.

3. The esterification apparatus for isoborneol acetate according to claim 1, characterized in that, A filter is installed on the discharge main pipe.

4. The esterification apparatus for isoborneol acetate according to claim 1, characterized in that, The discharge pipe is equipped with a first control valve, and the circulation pipe is equipped with a second control valve.

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