Production device of antioxidant 1076

Abstract

The utility model discloses a production device of an antioxidant 1076, which comprises an octadecanol storage tank, a 3, 5-methyl ester storage tank, a 1076 reaction kettle, a main condenser, a tail condenser, a methanol intermediate tank, a vacuum pump, a vacuum tail gas tank, a 1076 intermittent tower, a 1076 intermittent tower condenser, a 3, 5-methyl ester receiving tank, a spray cooling tower and an automatic packaging machine. The octadecanol storage tank and the 3, 5-methyl ester storage tank are respectively connected with the 1076 reaction kettle, the main condenser is arranged above the 1076 reaction kettle, the main condenser is connected with the methanol intermediate tank through the tail condenser, the methanol intermediate tank is connected with the vacuum pump, and the 1076 intermittent tower is respectively connected with the 3, 5-methyl ester receiving tank and the spray cooling tower through the 1076 intermittent tower condenser. According to the utility model, the production continuity of the antioxidant 1076 production device is optimized, the generated product is good in form, and the quality and the yield of the product are improved.

Description

Technical Field

[0001] This utility model belongs to the field of chemical equipment technology, specifically relating to a production device for antioxidant 1076. Background Technology

[0002] With industrial progress, the use of polymer materials is increasing, but most polymer materials exhibit aging phenomena. Antioxidants, as functional additives for polymer materials, can not only effectively reduce the oxidation rate of polymer materials but also extend their service life. With the increasing demands on polymer material processing, the development of high-quality, high-performance antioxidants is the mainstream trend in antioxidant development.

[0003] β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate, abbreviated as Antioxidant 1076, is a leading antioxidant product for plastics both domestically and internationally. Antioxidant 1076 exhibits good compatibility with polymers and possesses characteristics such as wash resistance, low volatility, and high antioxidant properties. Therefore, it is widely used in synthetic rubber, natural rubber, latex, other synthetic materials, and petroleum products.

[0004] Although antioxidant 1076 has broad application prospects in the field of polymer materials, traditional 1076 production equipment has many shortcomings. Specifically, the traditional crystallization method has stringent requirements for crystallization temperature conditions, making it difficult to effectively control the crystallization process and the discharge process is also quite difficult. In addition, traditional 1076 production equipment often requires a series of complex processes such as washing and drying, which not only greatly prolongs the production time but also significantly increases the production cost. Subsequent steps such as washing and drying also increase the complexity and time consumption of the production process, reducing the overall production efficiency.

[0005] In summary, traditional 1076 production equipment has many shortcomings, and there is an urgent need for a new and efficient 1076 antioxidant production equipment to overcome the deficiencies of existing technology, improve production efficiency, and reduce production costs. Utility Model Content

[0006] To address the aforementioned problems and overcome the shortcomings of existing technologies, this utility model provides a production apparatus for antioxidant 1076, comprising an octadecyl alcohol storage tank, a 3,5-methyl ester storage tank, a 1076 reaction vessel, a main condenser, a tail condenser, a methanol intermediate tank, a vacuum pump, a vacuum tail gas tank, a 1076 intermittent tower, a 1076 intermittent tower condenser, a 3,5-methyl ester receiving tank, a spray cooling tower, and an automatic packaging machine.

[0007] The octadecyl alcohol storage tank and the 3,5-methyl ester storage tank are respectively connected to the 1076 reactor. A main condenser is provided above the 1076 reactor. The main condenser is connected to the methanol intermediate tank via a tail condenser. The methanol intermediate tank is connected to one end of a vacuum pump. A vacuum tail gas tank is provided at the other end of the vacuum pump.

[0008] The 1076 reactor is connected to the 1076 batch tower. The 1076 batch tower is connected to the 3,5-methyl ester receiving tank and the spray cooling tower via the 1076 batch tower condenser. The bottom of the 3,5-methyl ester receiving tank is connected to the top of the 1076 reactor.

[0009] The spray cooling tower is connected to the automatic packaging machine and is positioned above the automatic packaging machine.

[0010] Preferably, an octadecyl alcohol feed pump is provided between the octadecyl alcohol storage tank and the 1076 reactor; a 3,5-methyl ester feed pump is provided between the 3,5-methyl ester storage tank and the 1076 reactor.

[0011] Preferably, the 1076 reactor is equipped with a bottom insertion pipe, one end of which is connected to the 1076 intermittent tower, and the other end of which is located at the bottom of the 1076 reactor.

[0012] Preferably, a stirring device is provided inside the 1076 reactor.

[0013] Preferably, a nitrogen inlet is provided on the 1076 reactor.

[0014] The beneficial effects of this utility model are:

[0015] 1. This utility model optimizes production continuity, resulting in products with good morphology, the advantage of compound granulation, and improves product quality and yield.

[0016] 2. This utility model adds a spray cooling tower and an automatic packaging machine, solving a series of problems such as the difficulty in crystallizing antioxidant 1076, the complexity of the washing process, the time-consuming drying process, and the complexity of the packaging process. At the same time, the spatial layout of the spray cooling tower and the automatic packaging machine greatly improves the material feeding rate, thereby increasing production efficiency and reducing production costs. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of a production apparatus for antioxidant 1076 according to this utility model.

[0018] The markings in the diagram are as follows: 1 is the octadecyl alcohol storage tank; 2 is the 3,5-methyl ester storage tank; 3 is the octadecyl alcohol feed pump; 4 is the 3,5-methyl ester feed pump; 5 is the 1076 reactor; 6 is the main condenser; 7 is the tail condenser; 8 is the methanol intermediate tank; 9 is the vacuum pump; 10 is the vacuum tail gas tank; 11 is the 1076 batch tower; 12 is the 3,5-methyl ester receiving tank; 13 is the spray cooling tower; 14 is the automatic packaging machine; and 15 is the 1076 batch tower condenser. Detailed Implementation

[0019] To make the technical problems solved, the technical solutions, and the beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0020] Combination Figure 1 As shown, an apparatus for producing antioxidant 1076 includes an octadecyl alcohol storage tank 1, a 3,5-methyl ester storage tank 2, a 1076 reaction vessel 5, a main condenser 6, a tail condenser 7, a methanol intermediate tank 8, a vacuum pump 9, a vacuum tail gas tank 10, a 1076 intermittent tower 11, a 1076 intermittent tower condenser 15, a 3,5-methyl ester receiving tank 12, a spray cooling tower 13, and a 1076 intermittent tower condenser 15.

[0021] The bottom end of the octadecyl alcohol storage tank 1 is connected to the top of the 1076 reactor 5 via the octadecyl alcohol feed pump 3; the bottom end of the 3,5-methyl ester storage tank 2 is connected to the top of the 1076 reactor 5 via the 3,5-methyl ester feed pump 4.

[0022] The main condenser 6 is located above the 1076 reactor 5. The main condenser 6 is connected to the methanol intermediate tank 8 via the tail condenser 7. The methanol intermediate tank 8 is connected to one end of the vacuum pump 9, and the other end of the vacuum pump 9 is equipped with a vacuum tail gas tank 10.

[0023] The 1076 reactor 5 is connected to the 1076 batch tower 11, the 1076 batch tower 11 is connected to the 1076 batch tower condenser 15, the 1076 batch tower condenser 15 is connected to the 3,5-methyl ester receiving tank 12 and the spray cooling tower 13 respectively, and the bottom of the 3,5-methyl ester receiving tank 12 is connected to the top of the 1076 reactor 5.

[0024] The automatic packaging machine 14 is connected to the spray cooling tower 13, which is located above the automatic packaging machine 14.

[0025] The automatic packaging machine 14 has functions such as automatic metering, filling, bag making, sealing, cutting, conveying, printing production batch number, no material alarm, and stirring.

[0026] Specifically, the 1076 reactor 5 is equipped with a bottom insertion pipe, one end of which is connected to the 1076 batch column 11, and the other end is located at the bottom of the 1076 reactor 5. The bottom insertion pipe is a hollow pipe that extends directly to the bottom of the 1076 reactor 5. When nitrogen gas is introduced into the 1076 reactor 5, under the action of gas pressure, the material in the 1076 reactor 5 enters the 1076 batch column 11 through the bottom insertion pipe for rectification.

[0027] Specifically, a stirring device is installed inside reactor 5 of the 1076 reactor. The purpose of this device is to ensure that octadecyl alcohol and 3,5-methyl ester are mixed evenly to facilitate a complete reaction.

[0028] Specifically, the spray cooling tower 13 is located above the automatic packaging machine 14, meaning it is positioned higher than the automatic packaging machine 14. Therefore, products exiting the spray cooling tower 13 can directly enter the automatic packaging machine 14, which automatically completes the weighing and packaging processes, allowing for direct sale.

[0029] Specifically, the 1076 reactor 5 is equipped with a nitrogen inlet, through which nitrogen gas is introduced into the 1076 reactor 5.

[0030] The working process of this utility model is as follows:

[0031] Octadecyl alcohol and 3,5-methyl ester, the raw materials for producing antioxidant 1076, are fed into reactor 5 (1076) via octadecyl alcohol feed pump 3 and 3,5-methyl ester feed pump 4, respectively. Vacuum pump 9 is turned on, and nitrogen purging is performed by switching valves. After nitrogen purging, reactor 5 is heated, and transesterification reaction is carried out under extreme vacuum conditions (atmospheric pressure inside reactor 5 is below 0.01 MPa).

[0032] During the reaction, methanol is distilled off from the raw materials octadecyl alcohol and 3,5-methyl ester. The methanol fraction enters the methanol intermediate tank 8 via the main condenser 6 and the tail condenser 7, while the remaining methanol fraction enters the vacuum tail gas tank 10. After being kept at a certain temperature for a certain period of time, the transesterification reaction ends.

[0033] After the reaction is complete, nitrogen gas is introduced back into reactor 5 (1076). Under the pressure of the gas, the material in reactor 5 enters batch column 11 (1076) through the bottom pipe for distillation. Based on their boiling points, the material is separated. The initial fraction is 3,5-methyl ester, which first passes through batch column condenser 15 (1076) and enters 3,5-methyl ester receiving tank 12, and can later be returned to reactor 5 for reuse. The later fraction is antioxidant 1076, which passes through batch column condenser 15 (1076) and enters spray cooling tower 13 for spray granulation, and then enters automatic packaging machine 14 for packaging.

[0034] The material is directly produced as a finished product through the spray cooling tower 13 and then enters the automatic packaging machine 14 for packaging, eliminating the need for complex processes such as washing and drying.

[0035] Antioxidant 1076 is cooled by spray cooling tower 13, which can uniformly lower the temperature and produce a product with a uniform morphology, thereby producing a high-purity antioxidant 1076 product. This utility model overcomes the shortcomings of existing antioxidant 1076 products that are prone to forming spherical or lumpy shapes. The product produced by this utility model has the advantage of compound granulation.

[0036] It is understood that the above specific description of this utility model is only used to illustrate this utility model and is not limited to the technical solutions described in the embodiments of this utility model. Those skilled in the art should understand that modifications or equivalent substitutions can still be made to this utility model to achieve the same technical effect; as long as the use needs are met, they are all within the protection scope of this utility model.

Claims

1. A production apparatus for antioxidant 1076, characterized in that: Octadecanol storage tank (1), 3, 5-methyl ester storage tank (2), 1076 reaction kettle (5), main condenser (6), tail condenser (7), methanol intermediate tank (8), vacuum pump (9), vacuum tail gas tank (10), 1076 batch tower (11), 1076 batch tower condenser (15), 3, 5-methyl ester receiving tank (12), spray cooling tower (13), automatic packaging machine (14); The octadecanol storage tank (1), 3, 5-methyl ester storage tank (2) is connected with 1076 reaction kettle (5) respectively, the upper portion of 1076 reaction kettle (5) is equipped with main condenser (6), main condenser (6) is connected with methanol intermediate tank (8) through tail condenser (7), one end of methanol intermediate tank (8) is connected with vacuum pump (9), the other end of vacuum pump (9) is provided with vacuum tail gas tank (10); The 1076 reaction kettle (5) is connected with 1076 batch tower (11), the 1076 batch tower (11) is connected with 3, 5-methyl ester receiving tank (12) and spray cooling tower (13) through 1076 batch tower condenser (15) respectively, the tank bottom of 3, 5-methyl ester receiving tank (12) is connected with the kettle top of 1076 reaction kettle (5); The spray cooling tower (13) is connected with automatic packaging machine (14), and the spray cooling tower (13) is arranged above the automatic packaging machine (14).

2. The apparatus according to claim 1, wherein: Octadecanol storage tank (1) and 1076 reaction kettle (5) are provided with octadecanol feeding pump (3) between them; 3, 5-methyl ester storage tank (2) and 1076 reaction kettle (5) are provided with 3, 5-methyl ester feeding pump (4) between them.

3. The antioxidant 1076 production device according to claim 1, wherein: The 1076 reaction kettle (5) is provided with an inserted bottom pipe, one end of the inserted bottom pipe is connected with 1076 batch tower (11), and the other end of the inserted bottom pipe is arranged at the kettle bottom portion of 1076 reaction kettle (5).

4. The antioxidant 1076 production device according to claim 1, wherein: The 1076 reaction kettle (5) is provided with a stirring device.

5. The antioxidant 1076 production device according to claim 1, wherein: The 1076 reaction kettle (5) is provided with a nitrogen inlet.

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