High-vacuum distillation equipment for epoxiconazole purification

Abstract

The utility model belongs to the technical field of vacuum distillation, particularly relates to high-vacuum distillation equipment for epoxiconazole purification, and provides the following scheme aiming at the problems that the conventional distillation equipment is difficult to heat to the boiling point of epoxiconazole, so that the distillation separation effect is not ideal, and condensed epoxiconazole contains part of trace moisture, so that the purity of epoxiconazole is influenced. Comprising a distillation retort, a heating piece used for heating is fixedly arranged on the inner wall of the distillation retort, a sealing cover is clamped to a retort opening in the top of the distillation retort, a condenser used for condensing evaporated epoxiconazole is fixedly installed on the outer wall of the distillation retort, and the input end of the condenser is communicated with the inner wall of the sealing cover through a first hose. When the epoxiconazole purification device is used, the epoxiconazole is efficiently purified through the combination of high vacuum distillation and the water filtering purification assembly, and the epoxiconazole purification device has the advantages of being simple in structure, convenient to operate, high in purification efficiency and the like, and has very high practical value.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum distillation, in particular to high vacuum distillation equipment for purifying epoxiconazole. Background Art

[0002] Fluoxepiconazole is a systemic triazole fungicide. Its active ingredient, fluoxepiconazole, inhibits the synthesis of ergosterol in pathogens and hinders the formation of bacterial cell walls. Fluoxepiconazole molecules have a strong affinity for a fungal enzyme (14-dencthylase), and can more effectively inhibit pathogenic fungi compared to currently known fungicides. At the same time, fluoxepiconazole can increase the activity of fentinase in crops, leading to the contraction of fungal haustoria and inhibiting the invasion of pathogens.

[0003] During the production process of epoxiconazole, distillation purification is required to remove by-products and impurities produced in the reaction. However, since the boiling point of epoxiconazole is 463.085°C (at 760 mmHg), conventional distillation equipment is difficult to heat to the boiling point of epoxiconazole, resulting in unsatisfactory distillation separation effect. In addition, the condensed epoxiconazole contains some trace water, which affects the purity of epoxiconazole.

[0004] In view of the above problems, the utility model document proposes a high vacuum distillation equipment for purifying fluopicolide. Utility Model Content

[0005] The utility model provides a high vacuum distillation device for purifying epoxiconazole, which solves the disadvantages in the prior art that the boiling point of epoxiconazole is 463.085°C (under 760mmHg conditions), conventional distillation equipment is difficult to heat to the boiling point of epoxiconazole, resulting in unsatisfactory distillation separation effect, and the condensed epoxiconazole contains some trace water, which affects the purity of epoxiconazole.

[0006] The utility model provides the following technical solutions:

[0007] A high vacuum distillation device for purifying epoxiconazole, comprising:

[0008] A distillation tank, wherein a heating plate for heating and raising the temperature is fixedly arranged on the inner wall of the distillation tank, a sealing cover is clamped on the tank mouth at the top of the distillation tank, a condenser for condensing and evaporating epoxiconazole is fixedly installed on the outer wall of the distillation tank, an input end of the condenser is connected to the inner wall of the sealing cover through a first hose, and three anti-slip legs are fixedly arranged in a ring array at the bottom of the outer wall of the distillation tank;

[0009] The vacuum assembly is arranged on the distillation tank and is used to create a low-pressure vacuum environment in the distillation tank, thereby reducing the boiling point of epoxiconazole and ensuring the distillation separation effect of the distillation tank;

[0010] The water filtering and purification component is arranged below the condenser and is used to filter out trace water and impurities in the condensed epoxiconazole, thereby achieving the purification effect.

[0011] In one possible design, the vacuum assembly includes a vacuum pump fixedly mounted on the outer wall of the distillation tank, the input end of the vacuum pump is connected to the inner wall of the distillation tank via a suction pipe, and the suction pipe is provided with a vacuum gauge for monitoring and adjusting the vacuum degree in the distillation tank.

[0012] In a possible design, a second solenoid valve for ensuring the sealing of the distillation tank is provided on the suction pipe, and the second solenoid valve is located between the vacuum pump and the vacuum gauge.

[0013] In a possible design, the water filtration and purification component includes a membrane filter disposed below the condenser, the input end of the membrane filter is connected to the output end of the condenser through a second hose, and the built-in filter membrane of the membrane filter is a polyvinylidene fluoride membrane.

[0014] In a possible design, the bottom of the distillation tank is connected to a discharge pipe, and the discharge pipe is provided with a first solenoid valve for controlling the discharge.

[0015] In a possible design, a temperature controller for adjusting the heating temperature of the distillation tank is provided on the outer wall of the distillation tank.

[0016] It should be understood that the above general description and the following detailed description are merely exemplary and do not limit the present invention.

[0017] In this application, the workflow of the high vacuum distillation equipment for purifying epoxiconazole is as follows:

[0018] Preparation: First, put the epoxiconazole to be purified into the distillation tank, ensure that the distillation tank is well sealed, and the tank mouth is tightly connected with the sealing cover. At the same time, check whether all pipes, valves and connectors are intact to ensure that the equipment is in good working condition;

[0019] Start the vacuum assembly: turn on the vacuum pump fixed on the outer wall of the distillation tank. The vacuum pump starts to extract the air in the distillation tank through the suction pipe. As the air is extracted, the air pressure in the distillation tank gradually decreases, forming a low-pressure vacuum environment, thereby reducing the boiling point of flufenoxazole and improving the distillation efficiency. During the vacuuming process, the vacuum gauge monitors the vacuum degree in the distillation tank in real time to ensure that the predetermined vacuum level is reached;

[0020] Heating and distillation: After a low-pressure vacuum environment is formed in the distillation tank, the heating plate is turned on to heat the distillation tank. As the temperature rises, the fluopicolide begins to evaporate, and the generated steam enters the condenser through the sealing cover on the top of the distillation tank and the first hose. The condenser cools the steam and condenses it into liquid;

[0021] Filtration and slag discharge: The condensed epoxiconazole liquid flows into the membrane filter through the first hose, and the membrane filter filters the epoxiconazole liquid to remove trace moisture and impurities therein. The filtered epoxiconazole liquid flows out through the output end of the membrane filter and can be collected or further processed by connecting to other equipment. When the purification of epoxiconazole is completed, the heating plate and the vacuum pump are turned off, and the first solenoid valve on the discharge pipe is opened to discharge the remaining epoxiconazole or residue at the bottom of the distillation tank. After the discharge is completed, the first solenoid valve is closed to prepare for the next round of purification operation;

[0022] Monitoring and adjustment: During the entire purification process, the temperature controller monitors and adjusts the heating temperature of the distillation tank in real time to ensure that the distillation process is carried out under optimal temperature conditions. At the same time, the operator can understand the vacuum degree in the distillation tank by observing the display of the vacuum gauge and make adjustments as needed.

[0023] The utility model has the following beneficial effects:

[0024] The utility model realizes the efficient purification of fluphenazine by combining high vacuum distillation and water filtration purification components, has the advantages of simple structure, convenient operation, high purification efficiency, and has high practical value. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A schematic diagram of the three-dimensional structure of a high vacuum distillation device for purifying epoxiconazole provided in an embodiment of the utility model;

[0026] Figure 2 Another perspective structural schematic diagram of a high vacuum distillation device for purifying epoxiconazole provided in an embodiment of the utility model;

[0027] Figure 3 A schematic diagram of the structure of a vacuum component of a high vacuum distillation device for purifying epoxiconazole provided in an embodiment of the utility model;

[0028] Figure 4 A schematic diagram of the connection structure of a membrane filter and a condenser of a high vacuum distillation device for purifying epoxiconazole provided in an embodiment of the utility model.

[0029] Figure numerals: 1, distillation tank; 2, sealing cover; 3, condenser; 4, first hose; 5, discharge pipe; 6, first solenoid valve; 7, vacuum pump; 8, suction pipe; 9, vacuum gauge; 10, second solenoid valve; 11, membrane filter; 12, second hose; 13, anti-slip support leg. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] In the description of the present invention, it should be understood that the terms "opening", "upper", "middle", "length", "inside" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0032] In order to keep the following description of the embodiments of the present invention clear and concise, the present invention omits detailed descriptions of known functions and known components.

[0033] Example 1

[0034] Please refer to Figure 1-4 , the present application relates to a vacuum distillation device, comprising:

[0035] A distillation tank 1, which is used as a main distillation container, has a heating plate fixedly arranged on its inner wall for heating and heating to evaporate epoxiconazole, a sealing cover 2 is clamped on the tank mouth at the top of the distillation tank 1 to ensure the sealing of the distillation process, a condenser 3 is fixedly installed on the outer wall of the distillation tank 1 to condense the evaporated epoxiconazole, an input end of the condenser 3 is connected to the inner wall of the sealing cover 2 through a first hose 4 to ensure that the evaporated epoxiconazole can smoothly enter the condenser 3 for condensation, and in addition, three anti-slip legs 13 are fixedly arranged on the bottom of the outer wall of the distillation tank 1 in a ring array to increase the stability of the equipment;

[0036] The vacuum assembly is the core part of the equipment, which includes a vacuum pump 7 fixedly mounted on the outer wall of the distillation tank 1, model PNK DP-D. The input end of the vacuum pump 7 is connected to the inner wall of the distillation tank 1 through a suction pipe 8. Through the operation of the vacuum pump 7, a low-pressure vacuum environment can be created in the distillation tank 1. This low-pressure environment can reduce the boiling point of flufenoxazole and improve the distillation efficiency. A vacuum gauge 9, model ZRX-29803, is also provided on the suction pipe 8 for real-time monitoring and adjustment of the vacuum degree in the distillation tank 1 to ensure that the distillation process is carried out under the best vacuum conditions;

[0037] The water filtration and purification component is responsible for filtering out trace moisture and impurities in the fluoxepoxazole after condensation. It includes a membrane filter 11 arranged below the condenser 3, model RNF-0460. The input end of the membrane filter 11 is connected to the output end of the condenser 3 through a second hose 12. The built-in filter membrane of the membrane filter 11 adopts a polyvinylidene fluoride membrane. This membrane material can effectively filter out trace moisture and impurities in fluoxepoxazole. After the fluoxepoxazole liquid is filtered by the membrane filter 11, the purity is significantly improved;

[0038] In addition, in order to facilitate the discharge of the remaining epoxiconazole or residue, the bottom of the distillation tank 1 is connected to a discharge pipe 5, and a first solenoid valve 6 is provided on the discharge pipe 5 to control the discharge. When the purification is completed, the first solenoid valve 6 is opened, and the remaining epoxiconazole or residue in the distillation tank 1 can be discharged through the discharge pipe 5;

[0039] Finally, in order to facilitate the adjustment of the heating temperature of the distillation tank 1, a temperature controller is also provided on the outer wall of the distillation tank 1, through which the heating temperature of the heating plate can be accurately controlled to ensure that the distillation process is carried out under the optimal temperature conditions, thereby achieving accurate control of the distillation process;

[0040] In summary, the present application achieves efficient purification of fluopicolide by combining high vacuum distillation and water filtration purification components, has the advantages of simple structure, convenient operation, high purification efficiency, etc., and has high practical value.

[0041] Example 2

[0042] Improvement on the basis of Example 1: A high vacuum distillation device for purifying epoxiconazole, which realizes efficient purification of epoxiconazole through high vacuum distillation and water filtration purification components. It is used in the field of epoxiconazole processing, please refer to Figure 3 In order to further ensure the sealing of the distillation tank 1, a second solenoid valve 10 is also provided on the suction pipe 8, which is located between the vacuum pump 7 and the vacuum gauge 9. When vacuuming is not required, the second solenoid valve 10 is closed to prevent outside air from entering the distillation tank 1 and affecting the distillation effect.

[0043] However, as is well known to those skilled in the art, the working principles and wiring methods of the condenser 3, vacuum pump 7, vacuum gauge 9 and membrane filter 11 are commonplace, and are conventional means or common knowledge, and will not be elaborated here. Those skilled in the art may make any optional selections according to their needs or convenience.

[0044] The above are only specific implementations of the utility model, but the protection scope of the utility model is not limited to them. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model; in the absence of conflicts, the embodiments of the utility model and the features in the embodiments can be combined with each other. Therefore, the protection scope of the utility model shall be based on the protection scope of the claims.

Claims

1. A high vacuum distillation apparatus for purifying epoxiconazole, characterized in that: include: A distillation tank (1), wherein a heating plate for heating and raising the temperature is fixedly arranged on the inner wall of the distillation tank (1), a sealing cover (2) is clamped on the tank mouth at the top of the distillation tank (1), a condenser (3) for condensing and evaporating epoxiconazole is fixedly installed on the outer wall of the distillation tank (1), an input end of the condenser (3) and the inner wall of the sealing cover (2) are connected via a first hose (4), and three anti-slip legs (13) are fixedly arranged in a ring array at the bottom of the outer wall of the distillation tank (1); A vacuum assembly is disposed on the distillation tank (1) and is used to create a low-pressure vacuum environment in the distillation tank (1), thereby reducing the boiling point of epoxiconazole and ensuring the distillation separation effect of the distillation tank (1); The water filtering and purification component is arranged below the condenser (3) and is used to filter out trace amounts of water and impurities in the condensed epoxiconazole, thereby achieving a purification effect.

2. A high vacuum distillation equipment for purifying epoxiconazole according to claim 1, characterized in that, The vacuum assembly comprises a vacuum pump (7) fixedly mounted on the outer wall of the distillation tank (1); an input end of the vacuum pump (7) is connected to the inner wall of the distillation tank (1) via a suction pipe (8); and a vacuum gauge (9) for monitoring and adjusting the vacuum degree in the distillation tank (1) is provided on the suction pipe (8).

3. A high vacuum distillation equipment for purifying epoxiconazole according to claim 2, characterized in that, The suction pipe (8) is provided with a second solenoid valve (10) for ensuring the sealing of the distillation tank (1), and the second solenoid valve (10) is located between the vacuum pump (7) and the vacuum gauge (9).

4. A high vacuum distillation equipment for purifying epoxiconazole according to claim 1, characterized in that, The water filtration and purification component comprises a membrane filter (11) arranged below the condenser (3); the input end of the membrane filter (11) is connected to the output end of the condenser (3) via a second hose (12); and the built-in filter membrane of the membrane filter (11) is a polyvinylidene fluoride membrane.

5. A high vacuum distillation equipment for purifying epoxiconazole according to claim 1, characterized in that: The bottom of the distillation tank (1) is connected to a discharge pipe (5), and the discharge pipe (5) is provided with a first solenoid valve (6) for controlling the discharge.

6. A high vacuum distillation equipment for purifying epoxiconazole according to claim 1, characterized in that: A temperature controller for adjusting the heating temperature of the distillation tank (1) is arranged on the outer wall of the distillation tank (1).

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