2-methylamino-5-tertbutyl-1, 3, 4-thiadiazole synthesis equipment

Abstract

The utility model belongs to the technical field of chemical equipment, and particularly relates to synthesis equipment for 2-methylamino-5-tertbutyl-1, 3, 4-thiadiazole. In the utility model, the carbon disulfide elevated tank, the primary reactor, the low-temperature crystallization device and the secondary reactor are arranged from top to bottom, so that the flowing of materials among equipment is effectively ensured, and the production efficiency is improved.

Description

Technical Field

[0001] This utility model belongs to the field of chemical equipment technology, specifically relating to a 2-methylamino-5-tert-butyl-1,3,4-thiadiazole synthesis device. Background Technology

[0002] 2-Methylamino-5-tert-butyl-1,3,4-thiadiazole is a chemical substance that appears as a white powder. This compound is mainly used in the synthesis of pharmaceuticals, fungicides, and dyes, and is also an intermediate in the production of the herbicide buthidione.

[0003] The molecular formula of 2-methylamino-5-tert-butyl-1,3,4-thiadiazole is C7H 13 N3S has a molecular weight of 171.263. It has a density of 1.13 g / cm³, a boiling point of 253.9°C, and a flash point of 107.4°C. This compound is typically packaged in cardboard drums or galvanized iron drums.

[0004] In the existing technology, the production of 2-methylamino-5-tert-butyl-1,3,4-thiadiazole requires segmented equipment and the transfer of raw materials between equipment, which affects the reaction yield or prolongs the production time. This is detrimental to the efficient preparation of 2-methylamino-5-tert-butyl-1,3,4-thiadiazole. Utility Model Content

[0005] To address the aforementioned technical problems, this utility model provides a 2-methylamino-5-tert-butyl-1,3,4-thiadiazole synthesis device that can produce efficiently without requiring multiple transfers of raw materials.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0007] A 2-methylamino-5-tert-butyl-1,3,4-thiadiazole synthesis apparatus includes a feed pipe connected to a primary reactor. The top of the primary reactor is connected to a high-level carbon disulfide tank via a pipe. A reactant storage tank is connected to the bottom of the primary reactor. The primary reactor is equipped with a steam inlet pipe and a steam outlet pipe, as well as a cooling water inlet pipe and a cooling water outlet pipe. A low-temperature crystallization device is connected to the bottom of the primary reactor. A waste liquid pipe is located at the bottom of the low-temperature crystallization device. A secondary reactor is connected to the bottom of the low-temperature crystallization device. A waste liquid pipe is located at the bottom of the secondary reactor. A feed pipe is located at the top of the secondary reactor. The bottom of the secondary reactor is connected to the secondary crystallization device via a pipe.

[0008] In one embodiment, a flow valve is provided below the carbon disulfide high-level tank.

[0009] In one embodiment, the reactant reservoir is connected to a feed pump.

[0010] In one embodiment, a one-way valve is provided at the bottom of the primary reactor.

[0011] In this invention, the carbon disulfide high-level tank, primary reactor, low-temperature crystallization device, and secondary reactor are arranged from top to bottom, effectively ensuring the flow of materials between the equipment and improving production efficiency. Beneficial effects

[0012] In this invention, the carbon disulfide high-level tank, primary reactor, low-temperature crystallization device, and secondary reactor are arranged from top to bottom, effectively ensuring the flow of materials between the equipment and improving production efficiency. Attached Figure Description

[0013] Figure 1 This is a structural diagram of the present invention;

[0014] The components include: primary reactor 1; high-level carbon disulfide tank 2; flow valve 3; feed pipe 4; steam outlet pipe 5; steam inlet pipe 6; cooling water outlet pipe 7; cooling water inlet pipe 8; reactant storage tank 9; feed pump 10; check valve 11; low-temperature crystallization device 12; secondary reactor 13; waste liquid pipe 14; feed pipe 15; and secondary crystallization device 16. Detailed Implementation

[0015] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all 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.

[0016] like Figure 1 The apparatus shown is for the synthesis of 2-methylamino-5-tert-butyl-1,3,4-thiadiazole, including a feed pipe 4 connected to a primary reactor 1. The top of the primary reactor 1 is connected to a carbon disulfide high-level tank 2 via a pipe. The bottom of the primary reactor 1 is connected to a reactant storage tank 9. The primary reactor 1 is equipped with a steam inlet pipe 6 and a steam outlet pipe 5, a cooling water inlet pipe 8 and a cooling water outlet pipe 7, and a low-temperature crystallization device 12 connected to the bottom of the primary reactor 1. The bottom of the low-temperature crystallization device 12 is equipped with a waste liquid pipe 14, and the bottom of the low-temperature crystallization device 12 is connected to a secondary reactor 13. The bottom of the secondary reactor 13 is equipped with a waste liquid pipe 14, and the upper part of the secondary reactor 13 is equipped with a feed pipe 15. The lower part of the secondary reactor 13 is connected to a secondary crystallization device 16 via a pipe.

[0017] The carbon disulfide high-level tank 2, primary reactor 1, low-temperature crystallization device 12, and secondary reactor 13 are arranged from top to bottom, which effectively ensures the flow of materials between the equipment and improves production efficiency.

[0018] It is also equipped with steam pipes and cooling water pipes to effectively control the reaction temperature.

[0019] A flow valve 3 is installed below the carbon disulfide high-level tank 2. The flow valve 3 can effectively control the addition rate of sulfur dioxide and ensure the effective progress of the reaction.

[0020] The reactant storage tank 9 is connected to the feed pump 10. The reactant storage tank 9 is located at the bottom of the primary reactor 1. The reactant is pumped in by the feed pump 10, which can effectively improve the mixing effect between raw materials and enhance the reaction.

[0021] The primary reactor 1 is equipped with a one-way valve 11 at the bottom.

[0022] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A plant for the synthesis of 2-methylamino-5-tert-butyl-1,3,4-thiadiazole comprising a feed pipe (4), characterized in that, The feed pipe (4) is connected with the primary reactor (1), the top of the primary reactor (1) is connected with the carbon disulfide head tank (2) through a pipeline, the lower part of the primary reactor (1) is connected with a reaction material storage (9), the primary reactor (1) is provided with a steam inlet pipe (6) and a steam outlet pipe (5), the primary reactor (1) is provided with a cooling water inlet pipe (8) and a cooling water outlet pipe (7), the bottom of the primary reactor (1) is connected with a low-temperature crystallization device (12), the bottom of the low-temperature crystallization device (12) is provided with a waste liquid pipe (14), the bottom of the low-temperature crystallization device (12) is connected with a secondary reactor (13), the bottom of the secondary reactor (13) is provided with a waste liquid pipe (14), the upper part of the secondary reactor (13) is provided with a feeding pipe (15), and the lower part of the secondary reactor (13) is connected with a secondary crystallization device (16) through a pipeline.

2. A 2-methylamino-5-tert-butyl-1,3,4-thiadiazole synthesis apparatus according to claim 1, characterized in that, The carbon disulfide head tank (2) is provided below with a flow valve (3).

3. A 2-methylamino-5-tert-butyl-1,3,4-thiadiazole synthesis apparatus according to claim 2, characterized in that, The reaction material storage (9) is connected with a feeding pump (10).

4. The 2-methylamino-5-tert-butyl-1,3,4-thiadiazole synthesis apparatus according to claim 3, characterized in that The bottom of the primary reactor (1) is provided with a one-way valve (11).

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