Synthesis device of plant growth regulator paclobutrazol product

Abstract

The utility model discloses a synthesis device of a plant growth regulator paclobutrazol product, which relates to the technical field of plant growth regulator synthesis appliances and comprises a protective shell, the inside of the protective shell is divided into an upper part, a middle part and a lower part, partition plates are horizontally mounted at the upper end and the lower end in the protective shell, and an amidation reaction bottle is mounted on one side of the top surface of the partition plate at the upper end. A first reaction motor is mounted on the top surface of the amidation reaction bottle, and a cyanoacetamide feeding hole, an N-methyl-N-phenylacetamide feeding hole and a gas discharging hole are sequentially formed in the upper end of the amidation reaction bottle; through the protection shell, the reaction tanks and the instruments, the whole chemical reaction production process can be conveniently concentrated in one protection shell, so that the maintenance work of personnel and the experiment safety are facilitated; through cooperation of the electronic valve and the gear pump, substances in the lower reaction tank can be conveniently and accurately conveyed to the upper reaction tank, human errors are reduced, and an operator can control the amount of the materials by controlling the electronic valve.

Description

Technical Field

[0001] This utility model relates to the technical field of plant growth regulator synthesis equipment, and in particular to a synthesis apparatus for the plant growth regulator paclobutrazol. Background Technology

[0002] The synthesis of paclobutrazol, a traditional plant growth regulator, is hampered by overly traditional or cumbersome equipment, whether in university chemical laboratories or large-scale factories. University chemical laboratories still commonly use test tubes, beakers, and centrifuges, while large chemical plants employ overly complex and cumbersome equipment, including numerous automated human-machine interface devices. For small and medium-sized chemical plants, using manufacturing methods based on modified traditional theories to produce paclobutrazol is undoubtedly time-consuming and labor-intensive. Introducing large-scale automated paclobutrazol manufacturing methods requires significant financial investment. Therefore, these problems need to be addressed. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing a synthesis apparatus for paclobutrazol, a plant growth regulator.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a synthesis device for the plant growth regulator paclobutrazol, comprising a protective shell, the protective shell being divided into upper, middle, and lower parts, with partitions horizontally installed at the upper and lower ends inside the protective shell. An amidation reaction flask is installed on one side of the top surface of the upper partition, and a first reaction motor is installed on the top surface of the amidation reaction flask. The upper end of the amidation reaction flask is sequentially provided with a cyanoacetamide inlet, an N-methyl-N-phenylacetamide inlet, and a vent. A first electronic valve is installed on one side of the bottom surface of the upper partition, and the upper end of the first electronic valve is connected to the outlet of the amidation reaction flask. An amide dehydration tank is installed on one side of the top surface of the lower partition, and the lower end of the first electronic valve is connected to the inlet at the upper end of the amide dehydration tank. A second reaction motor is installed on the top surface of the amide dehydration tank, and a material inlet and a material outlet are provided on the outer side of the upper end of the amide dehydration tank. A second electronic valve is installed at one end of the material outlet.

[0005] Preferably, a fixed platform is installed in the middle of the top surface of the upper partition, a gear pump is installed on the upper part of the fixed platform, the inlet of the gear pump passes through the upper partition and is connected to the second electronic valve, a strap is installed on the upper part of the fixed platform to fix the gear pump, and an alkylation reaction tank is installed on the other side of the top surface of the partition, a third reaction motor is installed at the upper end of the alkylation reaction tank, and a hydrogen inlet and a material outlet are sequentially opened on the upper periphery of the alkylation reaction tank, and the outlet of the gear pump is connected to the material outlet of the alkylation reaction tank through a conduit, and the outlet of the lower end of the alkylation reaction tank passes through the upper partition and is connected to the third electronic valve.

[0006] Preferably, a vulcanizing reactor is installed on the other side of the top surface of the lower partition. A benzenesulfonic acid inlet and a first connecting pipe are respectively installed on both sides of the top surface of the vulcanizing reactor. The first connecting pipe is connected to a third electronic valve, and the lower outlet of the vulcanizing reactor is connected to a fourth electronic valve through the lower partition.

[0007] Preferably, an oxidation reactor is installed on the other side of the bottom surface inside the protective shell, and an oxygen inlet and a second connecting pipe are installed sequentially on both sides of the top surface of the oxidation reactor. The second connecting pipe is connected to a fourth electronic valve, and the rear end of the oxidation reactor is connected to a fifth electronic valve.

[0008] Preferably, a Roots pump is installed at the rear end of one side of the bottom surface of the protective shell. The inlet of the Roots pump is connected to a fifth electronic valve through a conduit. A cyclization reaction vessel is installed at the front end of one side of the bottom surface of the protective shell. A fourth reaction motor is installed on the top surface of the cyclization reaction vessel. The outlet of the Roots pump is connected to the cyclization reaction vessel through a conduit. A reactant opening is provided in the middle of the outer side of the cyclization reaction vessel. The outlet at the bottom of the cyclization reaction vessel penetrates the bottom surface of the protective shell and is connected to a sixth electronic valve. The other end of the sixth electronic valve is connected to a paclobutrazol outlet.

[0009] Preferably, the output shafts of the first, second, third, and fourth reaction motors are all connected to fixed rods via couplings. The lower ends of the multiple fixed rods respectively penetrate the top surfaces of the amidation reaction flask, the amide dehydration tank, the alkylation reaction tank, and the cyclization reaction vessel, and the lower ends of the fixed rods are connected to a triangular stirring plate. A suction pipe is installed at the bottom of the inner cavity of the amide dehydration tank, and the suction pipe is connected to the material outlet of the amide dehydration tank.

[0010] Compared with existing technologies, the advantages of this invention are as follows: In this invention, the entire chemical reaction production process is conveniently integrated into a single protective shell, encompassing the various reaction vessels and instruments. This facilitates maintenance and enhances experimental safety. The combination of electronic valves and gear pumps allows for precise delivery of materials from the lower reaction vessel to the upper reaction vessel, reducing human error and enabling operators to control the material quantity via electronic valves. Attached Figure Description

[0011] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0012] Figure 1 This is a schematic diagram of the overall oblique side of the present invention;

[0013] Figure 2This is a schematic diagram of the unprotected shell proposed in this utility model;

[0014] Figure 3 This is a half-sectional schematic diagram of the amide dehydration tank proposed in this utility model;

[0015] Figure 4 This is a schematic diagram of the stirring device proposed in this utility model.

[0016] The numbers in the diagram represent: 1. Protective shell; 2. Cyanacetamide inlet; 3. N-Methyl-N-phenylacetamide inlet; 4. Vent; 5. First reaction motor; 6. Amidation reaction flask; 7. First electronic valve; 8. Material inlet; 9. Amide dehydration tank; 10. Fixed platform; 11. Gear pump; 12. Strap; 13. Third reaction motor; 14. Hydrogen inlet; 15. Reaction vessel; 16. Third electronic valve; 17. Benzenesulfonic acid inlet; 18. Sulfation reactor; 19. Fourth electronic valve; 20. Oxygen inlet; 21. Oxidation reactor; 22. Roots pump; 23. Fourth reaction motor; 24. Cycloning reaction vessel; 25. Reactant opening; 26. Sixth electronic valve; 27. Fifth electronic valve; 28. Second reaction motor; 29. ​​Second electronic valve; 30. Fixed rod; 31. Triangular stirring plate; 32. Suction pipe. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0018] Example: See Figure 1-4This invention discloses a synthesis apparatus for the plant growth regulator paclobutrazol, comprising a protective shell 1. The protective shell 1 is divided into three parts: upper, middle, and lower. Baffles are horizontally installed at the upper and lower ends of the protective shell 1, facilitating the separation of various operating devices and simplifying cleaning. An amidation reaction flask 6 is installed on one side of the top surface of the upper baffle. A first reaction motor 5 is installed on the top surface of the amidation reaction flask 6. The upper end of the amidation reaction flask 6 is sequentially provided with a cyanoacetamide inlet 2, an N-methyl-N-phenylacetamide inlet 3, and a vent 4. The vent 4 facilitates the release of harmless gases generated during the reaction. The system discharges waste gas to protect the safety of operators. A first electronic valve 7 is installed on one side of the bottom surface of the upper partition, allowing the reactants in the amidation reaction bottle 6 to flow into the next reaction vessel according to a pre-designed flow rate. The upper end of the first electronic valve 7 is connected to the outlet of the amidation reaction bottle 6, and an amide dehydration tank 9 is installed on one side of the top surface of the lower partition. The lower end of the first electronic valve 7 is connected to the inlet of the amide dehydration tank 9. A second reaction motor 28 is installed on the top surface of the amide dehydration tank 9, and a material inlet 8 and a material outlet are provided on the outer side of the upper end of the amide dehydration tank 9. A [unclear - possibly a device or equipment] is installed at one end of the material outlet. The second electronic valve 29 facilitates the flow of reactants from the amide dehydration tank 9 into the next reaction vessel according to the designed flow rate. A fixed platform 10 is installed in the middle of the top surface of the upper partition 11, and a gear pump 10 is installed on the upper end of the fixed platform 11. The gear pump 10 facilitates the transport of reactants from the amide dehydration tank 9 to the alkylation reaction vessel 15. The inlet of the gear pump 11 passes through the upper partition and connects to the second electronic valve 29. A strap 12 is installed on the upper end of the fixed platform 10 to secure the gear pump 11. The alkylation reaction vessel 15 is installed on the other side of the top surface of the partition 11. The upper end of the alkylation reactor 15 is equipped with a third reaction motor 13, and the upper periphery of the alkylation reactor 15 is provided with a hydrogen inlet 14 and a material outlet in sequence. The outlet of the gear pump 11 is connected to the material outlet of the alkylation reactor 15 through a conduit. The lower outlet of the alkylation reactor 15 is connected to a third electronic valve 16 through the upper partition. A sulfurization reactor 18 is installed on the other side of the top surface of the lower partition. A benzenesulfonic acid inlet 17 and a first connecting pipe are installed on both sides of the top surface of the sulfurization reactor 18. The first connecting pipe is connected to the third electronic valve 16. The lower outlet of the sulfurization reactor 18 is connected to a fourth electronic valve 19 through the lower partition.

[0019] In this invention, an oxidation reactor 21 is installed on the other side of the inner bottom surface of the protective shell 1. An oxygen inlet 20 and a second connecting pipe are sequentially installed on both sides of the top surface of the oxidation reactor 21. The second connecting pipe is connected to a fourth electronic valve 19, and the rear end of the oxidation reactor 21 is connected to a fifth electronic valve 27. A Roots pump 22 is installed at the rear end of one side of the inner bottom surface of the protective shell 1. The reaction products of the oxidation reactor 21 are easily transported to the cyclization reaction vessel 24 via the Roots pump 22. The inlet of the Roots pump 22 is connected to the fifth electronic valve 27 via a conduit. The cyclization reaction vessel 24 is installed at the front end of one side of the inner bottom surface of the protective shell 1. A fourth reaction motor 23 is installed on the top surface of the cyclization reaction vessel 24, and the outlet of the Roots pump 22 is connected to the cyclization reaction vessel via a conduit. The cyclization reaction vessel 24 is connected to a reaction vessel 24, and a reaction agent opening 25 is provided in the middle of the outer side of the cyclization reaction vessel 24. The discharge port at the bottom of the cyclization reaction vessel 24 is connected to a sixth electronic valve 26 through the inner bottom surface of the protective shell 1. The other end of the sixth electronic valve 26 is connected to a paclobutrazol discharge port. The output shafts of the first reaction motor 5, the second reaction motor 28, the third reaction motor 13 and the fourth reaction motor 23 are all connected to a fixing rod 30 through a coupling. The lower ends of the fixing rods 30 pass through the top surface of the amidation reaction flask 6, the amide dehydration tank 9, the alkylation reaction tank 15 and the cyclization reaction vessel 24, respectively. The lower ends of the fixing rods 30 are connected to a triangular stirring bar 31. A suction pipe 32 is installed at the bottom of the inner cavity of the amide dehydration tank 9. The suction pipe 32 is connected to the material outlet of the amide dehydration tank 9.

[0020] Working principle: When using this utility model, first check whether each reaction device and instrument is in the position of the protective shell 1 when it left the factory. Then check whether the first electronic valve 7, the second electronic valve 29, the third electronic valve 16, the fourth electronic valve 19, the fifth electronic valve 27 and the sixth electronic valve 26 are set according to the parameters of the corresponding solvent, and whether their corresponding input and output terminals are connected and sealed without leakage. In particular, it is necessary to check whether the gear pump 11 and the Roots pump 22 connected to the second electronic valve 29 and the fifth electronic valve 27 are sealed without leakage. Finally, check whether the Roots pump 22 is fixed to the bottom surface of the inner end of the protective shell 1, and whether the gear pump 11 is fixed by the fixing platform 10 and the strap 12 without loosening.

[0021] After the inspection is completed, experimental preparation can begin. Cyanacetamide and N-methyl-N-phenylacetamide are introduced into their respective feed ports: cyanacetamide feed port 2 and N-methyl-N-phenylacetamide feed port 3. The reaction is driven by the first reaction motor 5. The intermediate N-methyl-N-phenylacetamide cyanacetamide flows through the first electronic valve 7. The dehydrated reactant reacts with the reactant through the material inlet 8, then passes through the suction pipe 32 at the bottom, through the second electronic valve 29, and then through the gear pump 11 to the reaction tank 15. Hydrogen is introduced through the hydrogen feed port 14 to react with the intermediate, generating the intermediate N-methyl-N-phenyl-N-cyanoacetamide. This intermediate then passes through the third electronic valve 16 to the sulfurization reactor 18. Benzenesulfonic acid is introduced through the benzenesulfonic acid feed port 17 and reacts with the intermediate... The intermediate reacts to form N-methyl-N-phenyl-N-cyanoacetamide benzenesulfonate, which then reaches the oxidation reactor 21 through the fourth electronic valve 19. High-concentration oxygen is introduced through the oxygen inlet 20 to react with the intermediate. The oxidized intermediate is then sent to the cyclization reaction chamber 24 through the fifth electronic valve 27 and the Roots pump 22. The reactant is introduced through the reactant opening 25 to cyclize with the intermediate. Finally, the substance generated in the cyclization reaction chamber 24 is paclobutrazol. The paclobutrazol is then discharged through the sixth electronic valve 26. After the experiment, cleaning the instrument only requires pouring a large amount of water into the cyanoacetamide inlet 2, the N-methyl-N-phenylacetamide inlet 3, and the vent 4, and running the gear pump 11 and the Roots pump 22. After cleaning, the equipment is placed in a dry place and the inlet is covered.

[0022] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and inventive concept of the present utility model, should be covered within the protection scope of the present utility model.

Claims

1. A device for synthesizing a plant growth regulator paclobutrazol product, comprising a protective shell (1), characterized in that: The protective shell (1) is divided into three parts: upper, middle, and lower. A partition is horizontally installed at the upper and lower ends of the protective shell (1). An amidation reaction flask (6) is installed on one side of the top surface of the upper partition. A first reaction motor (5) is installed on the top surface of the amidation reaction flask (6). A cyanoacetamide inlet (2), an N-methyl-N-phenylacetamide inlet (3), and a vent (4) are sequentially opened at the upper end of the amidation reaction flask (6). A first electronic valve is installed on one side of the bottom surface of the upper partition. (7) The upper end of the first electronic valve (7) is connected to the outlet of the amidation reaction bottle (6), and an amide dehydration tank (9) is installed on one side of the top surface of the partition at the lower end. The lower end of the first electronic valve (7) is connected to the inlet of the upper end of the amide dehydration tank (9). A second reaction motor (28) is installed on the top surface of the amide dehydration tank (9). A material inlet (8) and a material outlet are opened on the outer side of the upper end of the amide dehydration tank (9). A second electronic valve (29) is installed at one end of the material outlet.

2. The apparatus for synthesizing a plant growth regulator paclobutrazol product according to claim 1, characterized in that: A fixed platform (10) is installed in the middle of the top surface of the upper partition. A gear pump (11) is installed on the upper end of the fixed platform (10). The inlet of the gear pump (11) passes through the upper partition and is connected to the second electronic valve (29). A strap (12) is installed on the upper end of the fixed platform (10) to fix the gear pump (11). An alkylation reaction tank (15) is installed on the other side of the top surface of the partition. A third reaction motor (13) is installed on the upper end of the alkylation reaction tank (15). A hydrogen inlet (14) and a material outlet are sequentially opened on the upper periphery of the alkylation reaction tank (15). The outlet of the gear pump (11) is connected to the material outlet of the alkylation reaction tank (15) through a conduit. The outlet of the alkylation reaction tank (15) at the lower end passes through the upper partition and is connected to the third electronic valve (16).

3. The apparatus for synthesizing a plant growth regulator paclobutrazol product according to claim 1, characterized in that: A vulcanizing reactor (18) is installed on the other side of the top surface of the lower partition. A benzenesulfonic acid inlet (17) and a first connecting pipe are respectively installed on both sides of the top surface of the vulcanizing reactor (18). The first connecting pipe is connected to the third electronic valve (16), and the lower outlet of the vulcanizing reactor (18) is connected to the fourth electronic valve (19) through the lower partition.

4. The apparatus for synthesizing a plant growth regulator paclobutrazol product according to claim 1, characterized in that: An oxidation reactor (21) is installed on the other side of the bottom surface inside the protective shell (1). An oxygen inlet (20) and a second connecting pipe are installed on both sides of the top surface of the oxidation reactor (21). The second connecting pipe is connected to the fourth electronic valve (19), and the rear end of the oxidation reactor (21) is connected to the fifth electronic valve (27).

5. The apparatus for synthesizing a plant growth regulator paclobutrazol product according to claim 1, characterized in that: A Roots pump (22) is installed at the rear end of one side of the inner bottom surface of the protective shell (1). The inlet of the Roots pump (22) is connected to the fifth electronic valve (27) through a conduit. A cyclization reaction vessel (24) is installed at the front end of one side of the inner bottom surface of the protective shell (1). A fourth reaction motor (23) is installed on the top surface of the cyclization reaction vessel (24). The outlet of the Roots pump (22) is connected to the cyclization reaction vessel (24) through a conduit. A reactant opening (25) is opened in the middle of the outer side of the cyclization reaction vessel (24). The outlet of the bottom of the cyclization reaction vessel (24) penetrates the inner bottom surface of the protective shell (1) and is connected to the sixth electronic valve (26). The other end of the sixth electronic valve (26) is connected to the paclobutrazol outlet.

6. The apparatus for synthesizing a plant growth regulator paclobutrazol product according to claim 1, characterized in that: The output shafts of the first reaction motor (5), the second reaction motor (28), the third reaction motor (13) and the fourth reaction motor (23) are all connected to fixed rods (30) via couplings. The lower ends of the multiple fixed rods (30) pass through the top surfaces of the amidation reaction bottle (6), the amide dehydration tank (9), the alkylation reaction tank (15) and the cyclization reaction vessel (24), respectively, and the lower ends of the fixed rods (30) are connected to the triangular stirring plate (31). A suction pipe (32) is installed at the bottom of the inner cavity of the amide dehydration tank (9), and the suction pipe (32) is connected to the material outlet of the amide dehydration tank (9).

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