Micro-channel reactor for synthesizing disperse yellow 54

Abstract

The utility model discloses a micro-channel reactor for disperse yellow 54 synthesis, and relates to the technical field of disperse yellow 54 synthesis. The reactor comprises a shell, a reactor assembly, a fixing cover and a driving motor, the reactor assembly is fixed in the shell and comprises an inner partition plate and an L-shaped partition plate, the inner partition plate is fixed in the shell, the L-shaped partition plate is fixed at one end of the inner partition plate and fixed on the inner wall of the shell, the end, close to the L-shaped partition plate, of the shell is fixedly communicated with the fixing cover, and the driving motor is arranged on the fixing cover. Driving motors are fixed to the ends, away from each other, of the shell and the fixed cover. Through the arrangement of the shell, the reactor assembly, the fixed cover and the driving motor, the problems that the micro-channel reactor needs a longer reactor length to produce disperse yellow 54 and the raw materials of the disperse yellow 54 are not fully mixed are solved; the micro-channel reactor disclosed by the utility model has the advantages that a longer reaction length can be obtained by a shorter reactor length when the micro-channel reactor is used for producing disperse yellow 54, and raw materials of the disperse yellow 54 are more fully mixed.

Description

Technical Field

[0001] This invention belongs to the field of dispersible yellow 54 synthesis technology, and in particular relates to a microchannel reactor for the synthesis of dispersible yellow 54. Background Technology

[0002] Disperse Yellow 54 is a disperse dye used for polyester dyeing. Its synthesis is mainly based on diazotization and coupling reactions. First, aromatic primary amines (such as p-nitroaniline) react with sodium nitrite and hydrochloric acid to generate diazonium salts. This step requires strict temperature control (0-5℃) and monitoring of the reaction endpoint using starch-KI test paper. To ensure the reaction proceeds fully, a microchannel reactor is needed. The microchannel reactor provides an efficient, safe, and controllable continuous flow process for the synthesis of Disperse Yellow 54, especially suitable for condition-sensitive rapid reactions such as diazotization and coupling. Compared with traditional batch reactors, its micron-level channel structure achieves instantaneous mixing and precise temperature control (0-5℃ diazotization, pH 4-6 coupling) of reactants by enhancing mass and heat transfer, effectively suppressing side reactions and improving product yield. However, it still has the following drawbacks in practical use:

[0003] In the process of producing Dispersible Yellow 54 in a microchannel reactor, the raw materials for the reaction are directly transported in a unidirectional flow. As the reaction proceeds, a longer reactor length is required to complete the reaction, resulting in a large reactor length and a large space occupation during the reaction process.

[0004] Secondly, in the production of Dispersible Yellow 54, the microchannel reactor directly drives the stirring blades for mixing. During the mixing process, only preliminary mixing occurs. As the microchannel reactor reacts, the raw materials for Dispersible Yellow 54 are not mixed sufficiently, which affects the reaction yield of Dispersible Yellow 54. Utility Model Content

[0005] The purpose of this invention is to provide a microchannel reactor for the synthesis of Dispersible Yellow 54. By setting up a shell, reactor components, a fixed cover and a drive motor, the invention solves the problems of requiring a longer reactor length and insufficient mixing of Dispersible Yellow 54 raw materials in the production of Dispersible Yellow 54 using a microchannel reactor.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This invention relates to a microchannel reactor for the synthesis of Dispersible Yellow 54, comprising a shell, a reactor assembly, a fixed cover, and a drive motor. The reactor assembly is fixed inside the shell, and the reactor assembly includes an inner partition and an L-shaped partition. The inner partition is fixed inside the shell, and an L-shaped partition is fixed to one end of the inner partition. The L-shaped partition is fixed to the inner wall of the shell. The fixed cover is fixedly connected to the end of the shell near the L-shaped partition. The drive motor is fixed to the ends of the shell and the fixed cover that are far apart from each other. During operation, the shell fixes the reactor assembly inside. The reaction takes place through the reactor assembly as the Dispersible Yellow 54 raw material is transported through it. The Dispersible Yellow 54 raw material is concentrated and input through the fixed cover, and the drive motor drives the stirring blades of the Dispersible Yellow 54 material.

[0008] Furthermore, a base is fixed to the lower periphery of the shell, and an output pipe is fixedly connected to the periphery of the shell inside the L-shaped partition. When the shell is in operation, the base provides support, and the output pipe outputs the reacted dispersed yellow 54.

[0009] Furthermore, the reactor assembly also includes a reaction column, with reaction columns fixed at the top and bottom of the inner partition. The reaction column is fixed inside the shell, and the reaction column on the reactor delivers the Dispersible Yellow 54 reaction.

[0010] Furthermore, cavities are left at both ends of the reaction column within the shell, and reaction holes are uniformly opened throughout the reaction column along its length to transport reaction raw materials.

[0011] Furthermore, the periphery of the fixed cover is fixedly connected to a conveying pipe in a ring array, and each conveying pipe is fixedly connected to a connector at the end away from the fixed cover. The connector on the conveying pipe is connected to the equipment for conveying disperse yellow 54 raw material.

[0012] Furthermore, the output end of the drive motor is fixed with a drive shaft, and the drive shafts of the two drive motors pass through the ends of the housing and the fixed cover, respectively. A rotating column is fixed at the end of each drive shaft away from the drive motor, and stirring blades are fixed in a ring array around the periphery of each rotating column. The drive motor drives the drive shaft to rotate, which in turn drives the rotating column and stirring blades to rotate, so that the stirring blades can fully disperse the dispersed yellow 54 during rotation.

[0013] This utility model has the following beneficial effects:

[0014] This invention solves the problem of requiring a longer reactor length for the production of Dispersible Yellow 54 in microchannel reactors by setting up a shell, reactor assembly, fixed cover, and drive motor. When the raw material for Dispersible Yellow 54 is transported into the shell, it is first transported into the shell above the L-shaped partition, and then into the reaction hole at the end of the reaction column at the top of the inner partition. After being transported and reacted in the reaction hole located in the upper reaction column, it is transported into the cavity of the reactor assembly and shell away from the fixed cover, and then flows into the reaction hole in the reaction column at the bottom of the partition. This allows for a double flow path during operation, increasing the sufficiency of the reaction of the Dispersible Yellow 54 raw material.

[0015] This invention solves the problem of insufficient mixing of raw materials for producing Dispersible Yellow 54 in a microchannel reactor by setting up a shell, reactor assembly, fixed cover, and drive motor. When material is fed into the fixed cover, the drive motor on the fixed cover is started. The drive motor drives the drive shaft to rotate, which in turn drives the rotating column and stirring blades to rotate. As the stirring blades rotate, the Dispersible Yellow 54 raw materials in the fixed cover are fully stirred and then transported to the reaction column. After entering the reaction column, the material is transported to the end of the shell away from the fixed cover. Then, the drive motor on the shell is started again, driving the stirring blades to further stir and mix the initially reacted Dispersible Yellow 54 raw materials. Then, the material is transported to the reaction column below, so that the Dispersible Yellow 54 raw materials in the shell are fully mixed and reacted. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments 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.

[0017] Figure 1 A three-dimensional view of the microchannel reactor assembly structure for the synthesis of Dispersible Yellow 54;

[0018] Figure 2 This is a three-dimensional structural diagram of the shell;

[0019] Figure 3 This is a three-dimensional structural view of the reactor assembly;

[0020] Figure 4 for Figure 3 Enlarged view of the structure at point A in the image;

[0021] Figure 5 A three-dimensional structural diagram of the fixed cover;

[0022] Figure 6 This is a three-dimensional structural diagram of the drive motor;

[0023] Figure 7 This is a three-dimensional view of the microchannel reactor assembly structure for the synthesis of Dispersible Yellow 54.

[0024] Figure label:

[0025] 1. Shell; 101. Output pipe; 102. Base; 2. Reactor assembly; 201. Inner baffle; 202. Reaction column; 2021. Reaction hole; 203. L-shaped baffle; 3. Fixed cover; 301. Feed pipe; 302. Connector; 4. Drive motor; 401. Drive shaft; 402. Rotating column; 403. Stirring blades. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model. Specific Implementation Example 1

[0027] Please see Figure 1-4 This invention relates to a microchannel reactor for the synthesis of Dispersible Yellow 54, comprising a shell 1, a reactor assembly 2, a fixed cover 3, and a drive motor 4. The reactor assembly 2 is fixed inside the shell 1, and the reactor assembly 2 is conveyed through the reactor assembly 2. The reactor assembly 2 includes an inner partition 201 and an L-shaped partition 203. The inner partition 201 is fixed inside the shell 1. During operation, the inner partition 201 separates the two reaction columns 202 of the reaction, forming a longer reaction path, so that the raw material of Dispersible Yellow 54 reacts more fully. An L-shaped partition 203 is fixed to one end of the inner partition 201. The L-shaped partition 203 is fixed to the inner wall of the shell 1 and separates the reactants after the reaction from the raw materials before the reaction. The fixed cover 3 is fixedly connected to one end of the shell 1 near the L-shaped partition 203. The fixed cover 3 closes one end of the shell 1 and conveys the raw materials of the reaction into the shell 1. The drive motor 4 is fixed to the ends of the shell 1 and the fixed cover 3 that are far apart from each other. The drive motor 4 drives the stirring of the reactants.

[0028] Specifically, a base 102 is fixed to the lower periphery of the shell 1, and an output pipe 101 is fixedly connected to the periphery of the shell 1 inside the L-shaped partition 203. The bottom of the base 102 on the outer side of the shell 1 is fixed to the workbench, supporting the shell 1 on it, and the reacted material inside the shell 1 is discharged through the output pipe 101.

[0029] Furthermore, the reactor assembly 2 also includes a reaction column 202. The reaction column 202 is fixed at both the top and bottom of the inner partition 201. The reaction column 202 is fixed inside the shell 1. The reactor assembly 2 reacts through the reaction column 202 when the dispersed yellow 54 raw material passes through it.

[0030] Furthermore, the reaction column 202 has cavities at both ends in the shell 1 for temporarily storing the reactants and guiding them through the reaction holes 2021. The reaction column 202 has reaction holes 2021 uniformly extending along its length to provide space for the transport of the disperse yellow 54 raw material. The reactants continuously mix and react as they pass through the reaction holes 2021.

[0031] The operation process of this embodiment is as follows: During operation, after the raw material of Dispersible Yellow 54 is transported into the shell 1, it is first transported into the shell 1 above the L-shaped partition 203, and then into the reaction hole 2021 at the end of the reaction column 202 at the top of the inner partition 201. After being transported and reacted in the reaction hole 2021 located in the upper reaction column 202, it is transported into the cavity of the reactor assembly 2 and the shell 1 away from the fixed cover 3, and then flows into the reaction hole 2021 in the reaction column 202 at the bottom of the partition. This allows for double the flow path during operation, increasing the sufficiency of the reaction of the Dispersible Yellow 54 raw material. Specific Implementation Example 2

[0032] Please see Figure 1-7 Based on the first specific embodiment, the periphery of the fixed cover 3 is fixedly connected with a conveying pipe 301 in a ring array. Each conveying pipe 301 is fixedly connected to a connector 302 at the end away from the fixed cover 3. When the fixed cover 3 is working, the connector 302 at the end of the conveying pipe 301 away from the fixed cover 3 is connected to the equipment for conveying disperse yellow 54 raw material. During operation, the disperse yellow 54 raw material is conveyed into the fixed cover 3 and then conveyed into the housing 1 through the fixed cover 3.

[0033] Specifically, the output end of the drive motor 4 is fixed with a drive shaft 401. The drive shafts 401 of the two drive motors 4 pass through the ends of the housing 1 and the fixed cover 3 respectively. A rotating column 402 is fixed at the end of each drive shaft 401 away from the drive motor 4. Stirring blades 403 are fixed in a ring array around the periphery of each rotating column 402. The drive motor 4 drives the drive shaft 401 to rotate. As the drive shaft 401 rotates, it drives the stirring blades 403 to rotate, so as to mix the materials in the housing 1 and the fixed cover 3 evenly.

[0034] The operation process of this embodiment is as follows: During operation, the connector 302 on the feed pipe 301 outside the fixed cover 3 is connected to the equipment for conveying disperse yellow 54 raw material. The disperse yellow 54 raw material is conveyed into the fixed cover 3 through the feed pipe 301. At the same time, the drive motor 4 on the fixed cover 3 is started. The drive motor 4 drives the drive shaft 401 to rotate, which drives the rotating column 402 and the stirring blade 403 to rotate. As the stirring blade 403 rotates, the disperse yellow 54 raw material in the fixed cover 3 is fully stirred. Then it is conveyed into the reaction column 202. After entering the reaction column 202, it is conveyed to the end of the shell 1 away from the fixed cover 3. Then the drive motor 4 on the shell 1 is started again, which drives the stirring blade 403 to further stir and mix the disperse yellow 54 raw material after the initial reaction. Then it is conveyed into the reaction column 202 located below, so that the disperse yellow 54 raw material in the shell 1 is fully mixed and reacted.

[0035] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0036] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A microchannel reactor for the synthesis of Dispersible Yellow 54, comprising a shell (1), reactor components (2), a fixed cover (3), and a drive motor (4), characterized in that: The reactor assembly (2) is fixed inside the shell (1). The reactor assembly (2) includes an inner partition (201) and an L-shaped partition (203). The inner partition (201) is fixed inside the shell (1). An L-shaped partition (203) is fixed at one end of the inner partition (201). The L-shaped partition (203) is fixed on the inner wall of the shell (1). A fixed cover (3) is fixedly connected to one end of the shell (1) near the L-shaped partition (203). A drive motor (4) is fixed at one end of the shell (1) and the fixed cover (3) away from each other.

2. The microchannel reactor for synthesizing Dispersible Yellow 54 according to claim 1, characterized in that: A base (102) is fixed to the lower periphery of the housing (1), and an output pipe (101) is fixedly connected to the periphery of the housing (1) inside the L-shaped partition (203).

3. The microchannel reactor for synthesizing Dispersible Yellow 54 according to claim 1, characterized in that: The reactor assembly (2) also includes a reaction column (202), which is fixed at the top and bottom of the inner partition (201) and is fixed inside the shell (1).

4. The microchannel reactor for synthesizing Dispersible Yellow 54 according to claim 3, characterized in that: The reaction column (202) has cavities at both ends in the shell (1), and reaction holes (2021) are uniformly opened in the reaction column (202) along the length direction.

5. The microchannel reactor for synthesizing Dispersible Yellow 54 according to claim 1, characterized in that: The fixed cover (3) has a ring array of fixedly connected material conveying pipes (301) on its periphery, and each material conveying pipe (301) has a connector (302) fixedly connected at the end away from the fixed cover (3).

6. The microchannel reactor for synthesizing Dispersible Yellow 54 according to claim 1, characterized in that: The output end of the drive motor (4) is fixed with a drive shaft (401). The drive shafts (401) of the two drive motors (4) pass through the ends of the housing (1) and the fixed cover (3) respectively. A rotating column (402) is fixed at the end of each drive shaft (401) away from the drive motor (4). Stirring blades (403) are fixed in a ring array around each rotating column (402).

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