Method and equipment for preparing and purifying high-purity diiodine

Abstract

The invention relates to the technical field of purification of high-purity diiodine, and discloses a preparation and purification method of high-purity diiodine. Comprising the following steps: S1, raw material reaction: stirring and mixing a diiodine raw material and an organic catalyst, so that the diiodine raw material can be subjected to chemical reaction and is discharged into a distillation part of the equipment for distillation; the reacted diiodine can be subjected to high-temperature distillation through high temperature, distillate obtained after diiodine high-temperature distillation can enter a purification position of the equipment to be treated, a handle is held to move an embedding base, a transverse plate and a regulation and control base together, and the regulation and control base can extend into a communicating pipe to plug the communicating pipe or regulate and control the flow speed; when the embedding seat pushes the transverse plate and the regulating seat to move, the rubber strip can be attached to the surface of the swing plate, and when the swing plate is pushed by friction through the elasticity of the spring, the embedding depth between the regulating seat and the communicating pipe can be judged according to the friction clamping times of the swing plate and the rubber strip, so that the distillation efficiency of diiodine can be improved.

Description

Technical Field

[0001] The invention relates to the technical field of high-purity diiodine purification, and in particular to a method and equipment for preparing and purifying high-purity diiodine. Background Art

[0002] High-purity diiodine refers to iodine element with a purity of more than 99.99%. It is usually used in production and scientific research fields. High-purity diiodine is a black solid with a pungent smell. Its density is 4.93g / cm3 and its melting point is 113.5℃. High-purity diiodine is volatile and easily discolored when exposed to moisture in the air. High-purity diiodine is mainly used in the production of medical iodine products and chemical reagents, and in the preparation of optical materials and electronic devices in the field of scientific research. In addition, high-purity diiodine can also be used in the preparation of iodides, such as potassium iodide and silver iodide. When preparing high-purity diiodine, attention should be paid to storage and operating conditions to avoid contact with the skin and inhalation of gases. High-purity diiodine is volatile under open flames, so it needs to be stored in a sealed container and equipped with protective equipment. High-purity diiodine is an element with extremely high purity and has important application value. It has broad application prospects in the production of medicines and chemical reagents, as well as the preparation of optical materials and electronic devices.

[0003] When the preparation and purification equipment of high-purity diiodine is in use, the discharge flow rate of diiodine cannot be regulated, resulting in excessive discharge of diiodine during distillation, which makes the efficiency of diiodine in the distillation process slower and reduces the diiodine distillation efficiency. At the same time, when the preparation and purification equipment of high-purity diiodine is in use, it is inconvenient to separate the liquid and precipitate formed by the purification of diiodine precipitation, resulting in the precipitate and liquid being easily mixed again when the diiodine is discharged, thereby reducing the purification quality of the diiodine. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the present invention provides a method and equipment for preparing and purifying high-purity diiodine. When the diiodine raw material is discharged through a connecting pipe, a staff member can hold a handle to move the fitting seat, the horizontal plate and the regulating seat together. Since the diameter of the regulating seat is smaller than that of the connecting pipe, the regulating seat can extend into the interior of the connecting pipe to seal the connecting pipe or regulate the flow rate when the fitting seat pushes the horizontal plate and the regulating seat to move, the rubber strip can fit with the surface of the swing plate, and when the swing plate is pushed by friction using the elasticity of the spring, the swing plate can move to squeeze the spring, and the fitting depth between the regulating seat and the connecting pipe can be judged by the number of friction jams between the swing plate and the rubber strip, and the diiodine can be discharged in small amounts and multiple times, thereby improving the diiodine distillation efficiency. When the diiodine distillate enters the purification box, the diiodine distillate can be discharged in a small amount and multiple times, thereby improving the diiodine distillation efficiency. After the distillate is deposited and layered by precipitation, the distillate is precipitated and layered by precipitation. When the distillation and precipitation layering is completed, the slide bar is pushed downward so that the slide bar can drive the rotating plate and the separation plate to move downward together. Since the surface of the separation plate fits the inner wall of the purification box, the liquid at the layered position can pass through the first circular hole and the second circular hole through the movement of the rotating plate and the separation plate. The rotating plate and the separation plate are slowly pushed. When the rotating plate and the separation plate move to the layered position of the distillate, the slide bar is rotated so that it can drive the rotating plate to rotate. When the rotating plate is rotating, the corresponding positions of the first circular hole and the second circular hole are staggered so that the layered liquid no longer passes through the interior of the separation plate and the rotating plate, so that the diiodine is not easily wasted during precipitation purification, and the diiodine purification quality can be improved at the same time, solving the problems of low diiodine distillation efficiency and inconvenient separation of diiodine precipitation.

[0006] (II) Technical solution

[0007] In order to solve the above technical problems, the present invention provides the following technical solution: a method for preparing and purifying high-purity diiodine, comprising the following steps:

[0008] S1. Raw material reaction:

[0009] The used box can be installed on the upper surface of the base, and the diiodine raw material and the organic catalyst are stirred and mixed, so that the diiodine raw material can undergo a chemical reaction and be discharged into the distillation part of the equipment for distillation;

[0010] S2. High temperature distillation:

[0011] The diiodine after the reaction can be distilled at high temperature by using high temperature, and the distillate of diiodine distillation at high temperature can enter the purification part of the equipment for treatment;

[0012] S3, purification treatment:

[0013] The diiodine distilled out is precipitated and layered by a precipitation method. After the diiodine layering is completed, the precipitate can be discharged so that the diiodine can be purified.

[0014] A high-purity diiodine preparation and purification device comprises a base, a mixing box is fixedly connected to the upper surface of the base, a motor is fixedly connected to the upper surface of the mixing box, a rotating rod is fixedly connected to the output end of the motor, stirring blades are fixedly connected to both sides of the rotating rod, a liquid inlet pipe is fixedly connected to the upper surface of the mixing box, and a connecting pipe is fixedly connected to the side surface of the mixing box;

[0015] The side surface of the mixing box is embedded with an embedding seat, the side surface of the embedding seat is fixedly connected with a handle, the side surface of the embedding seat is fixedly connected with a horizontal plate, the front surface of the horizontal plate is fixedly connected with a connecting plate, the front surface of the connecting plate is fixedly connected with a regulating seat, the upper surface of the embedding seat is provided with a rubber strip, the inner wall of the mixing box is fixedly connected with a fixed seat, the lower surface of the fixed seat is fixedly connected with a movable plate, the rear surface of the movable plate is movably connected with a swinging plate through a bearing, the side surface of the swinging plate is fixedly connected with a spring, and the spring is fixedly connected to the fixed seat.

[0016] Preferably, a distillation box is fixedly connected to the upper surface of the base, and the distillation box is in communication with the connecting pipe.

[0017] Preferably, an electric heating tube is fixedly connected to the interior of the distillation box, and a partition is fixedly connected to the interior of the distillation box, and the partition is located below the electric heating tube.

[0018] Preferably, a temperature sensor is fixedly connected to the front surface of the distillation box, and a distillation tube is fixedly connected to the side surface of the distillation box.

[0019] Preferably, a recovery box is fixedly connected to the rear surface of the distillation box, an opening is provided on the upper surface of the recovery box, a slide is slidably connected inside the opening, a metal plate is fixedly connected to the lower surface of the slide, and a heat-conducting rod is fixedly connected to the front and rear surfaces of the metal plate.

[0020] Preferably, a frame is fixedly connected to the interior of the recycling box, adsorption cotton is arranged inside the frame, and the adsorption cotton is fitted to the heat-conducting rod.

[0021] Preferably, a purification box is fixedly connected to the upper surface of the base, and the purification box is communicated with the distillation tube, and a drain pipe is fixedly connected to the side surface of the purification box.

[0022] Preferably, a slide rod is slidably connected to the interior of the purification box, and a rotating plate is fixedly connected to one end of the slide rod close to the purification box, and a first circular hole is provided inside the rotating plate.

[0023] Preferably, the lower surface of the rotating plate is movably connected to a movable rod via a bearing, one end of the rotating rod away from the rotating plate is fixedly connected to a separation plate, and a second circular hole is provided inside the separation plate.

[0024] Compared with the prior art, the present invention provides a method and device for preparing and purifying high-purity diiodine, which has the following beneficial effects:

[0025] 1. When the diiodine raw material is discharged through the connecting pipe, the staff can hold the handle to move the fitting seat, the horizontal plate and the regulating seat together. Since the diameter of the regulating seat is smaller than the connecting pipe, the regulating seat can extend into the interior of the connecting pipe to block the connecting pipe or regulate the flow rate when the regulating seat moves. When the fitting seat pushes the horizontal plate and the regulating seat to move, the rubber strip can fit with the surface of the swing plate. When the swing plate is pushed by friction due to the elasticity of the spring, the swing plate can move to squeeze the spring. The fitting depth between the regulating seat and the connecting pipe can be judged by the number of friction jams between the swing plate and the rubber strip, and diiodine can be discharged in small amounts and multiple times, thereby improving the distillation efficiency of diiodine.

[0026] 2. According to the present invention, after the diiodine distillate enters the interior of the purification box, the distillate is precipitated and layered by precipitation. After the distillation precipitation and layering are completed, the slide bar is pushed downward so that the slide bar can drive the rotating plate and the separation plate to move downward together. Since the surface of the separation plate fits the inner wall of the purification box, the liquid at the layered position can pass through the first circular hole and the second circular hole through the movement of the rotating plate and the separation plate. The rotating plate and the separation plate are slowly pushed. When the rotating plate and the separation plate move to the layered position of the distillate, the slide bar is rotated so that it can drive the rotating plate to rotate. When the rotating plate rotates, the corresponding positions of the first circular hole and the second circular hole are staggered so that the layered liquid no longer passes through the interior of the separation plate and the rotating plate, thereby preventing diiodine from being wasted during precipitation purification and improving the quality of diiodine purification.

[0027] 3. After the diiodine distillation is completed, the slide plate and the opening are slidably connected to each other, so that the slide plate can drive the metal plate and the heat-conducting rod to move. When the metal plate moves, the heat-conducting rod can penetrate the inner wall of the recovery box and fit with the surface of the distillation box, so that the heat-conducting rod can transfer the heat on the surface of the distillation box. The slide plate is pushed backward, so that the metal plate can drive the heat-conducting rod to enter the interior of the adsorption cotton, so that the adsorption cotton can insulate the heat transferred in the heat-conducting rod and collect the heat, so that the distillation box can be preheated in advance when used, thereby preventing heat waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0029] Figure 2 It is a schematic diagram of the internal structure of the present invention;

[0030] Figure 3 for Figure 2 Schematic diagram of the structure at A in the middle;

[0031] Figure 4It is a schematic diagram of the structure of the interlocking seat of the present invention;

[0032] Figure 5 This is a schematic diagram of the separation plate splitting structure of the present invention;

[0033] Figure 6 It is a rear view structural schematic diagram of the present invention;

[0034] Figure 7 This is a schematic diagram of the disassembly structure of the recycling box of the present invention.

[0035] Among them: 1. base; 2. purification box; 3. sliding rod; 4. distillation box; 5. liquid inlet pipe; 6. motor; 7. mixing box; 8. temperature sensor; 9. drain pipe; 10. separation plate; 11. distillation tube; 12. electric heating tube; 13. partition; 14. stirring blade; 15. rotating rod; 16. handle; 17. connecting pipe; 18. second circular hole; 19. movable rod; 20. first circular hole; 21. rotating plate; 22. metal plate; 23. fitting seat; 24. rubber strip; 25. horizontal plate; 26. connecting plate; 27. regulating seat; 28. fixed seat; 29. ​​spring; 30. swing plate; 31. movable plate; 32. recycling box; 33. adsorption cotton; 34. opening; 35. slide plate; 36. heat conducting rod; 37. frame. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] Embodiment 1:

[0038] A method for preparing and purifying high-purity diiodine comprises the following steps:

[0039] S1. Raw material reaction:

[0040] The used box can be installed on the upper surface of the base 1, and the diiodide raw material and the organic catalyst are stirred and mixed, so that the diiodide raw material can undergo a chemical reaction and be discharged into the distillation part of the equipment for distillation;

[0041] S2. High temperature distillation:

[0042] The diiodine after the reaction can be distilled at high temperature by using high temperature, and the distillate of diiodine distillation at high temperature can enter the purification part of the equipment for treatment;

[0043] S3, purification treatment:

[0044] The diiodine distilled out is precipitated and layered by a precipitation method. After the diiodine layering is completed, the precipitate can be discharged so that the diiodine can be purified.

[0045] Embodiment 2:

[0046] See also Figure 1-7 A high-purity diiodine preparation and purification device comprises a base 1, a mixing box 7 is fixedly connected to the upper surface of the base 1, a motor 6 is fixedly connected to the upper surface of the mixing box 7, a rotating rod 15 is fixedly connected to the output end of the motor 6, stirring blades 14 are fixedly connected to both sides of the rotating rod 15, a liquid inlet pipe 5 is fixedly connected to the upper surface of the mixing box 7, a connecting pipe 17 is fixedly connected to the side surface of the mixing box 7, the diiodine raw material can be discharged into the interior of the mixing box 7 through the liquid inlet pipe 5, the motor 6 is connected to an external power supply, and the motor 6 is started to drive the rotating rod 15 and the stirring blade 14 to rotate. 4 rotates, and when the stirring blade 14 rotates, the diiodine raw material in the mixing box 7 can be mixed. When the diiodine raw materials are mixed, the diiodine raw materials can enter the interior of the distillation box 4 through the connecting pipe 17 for distillation. The side surface of the mixing box 7 is embedded with an embedding seat 23, and the side surface of the embedding seat 23 is fixedly connected with a handle 16. The side surface of the embedding seat 23 is fixedly connected with a horizontal plate 25, the front surface of the horizontal plate 25 is fixedly connected with a connecting plate 26, and the front surface of the connecting plate 26 is fixedly connected with a regulating seat 27. The upper surface of the embedding seat 23 is provided with a rubber strip 24 The inner wall of the mixing box 7 is fixedly connected with a fixed seat 28, the lower surface of the fixed seat 28 is fixedly connected with a movable plate 31, the rear surface of the movable plate 31 is movably connected with a swing plate 30 through a bearing, the side surface of the swing plate 30 is fixedly connected with a spring 29, and the spring 29 is fixedly connected to the fixed seat 28. When the diiodine raw material is discharged through the connecting pipe 17, the staff can hold the handle 16 to move the embedded seat 23, the horizontal plate 25 and the regulating seat 27 together. Since the diameter of the regulating seat 27 is smaller than the connecting pipe 17, the regulating seat 27 is moved. It can extend into the interior of the connecting pipe 17 to seal the connecting pipe 17 or regulate the flow rate. When the engaging seat 23 pushes the horizontal plate 25 and the regulating seat 27 to move, the rubber strip 24 can fit with the surface of the swing plate 30. When the swing plate 30 is pushed by friction due to the elasticity of the spring 29, the swing plate 30 can move to squeeze the spring 29. The engaging depth between the regulating seat 27 and the connecting pipe 17 can be judged by the number of times the swing plate 30 and the rubber strip 24 are rubbed and stuck, and diiodine can be discharged in small amounts and multiple times, thereby improving the distillation efficiency of diiodine.

[0047] The upper surface of the base 1 is fixedly connected with a distillation box 4, and the distillation box 4 is communicated with a connecting pipe 17. The interior of the distillation box 4 is fixedly connected with an electric heating tube 12. The interior of the distillation box 4 is fixedly connected with a partition 13, and the partition 13 is located below the electric heating tube 12. The front surface of the distillation box 4 is fixedly connected with a temperature sensor 8. The side surface of the distillation box 4 is fixedly connected with a distillation tube 11. The rear surface of the distillation box 4 is fixedly connected with a recovery box 32. The upper surface of the recovery box 32 is provided with an opening 34. The interior of the opening 34 is slidably connected with a slide plate 35. The lower surface of the slide plate 35 is fixedly connected with a metal plate 22. The front and rear surfaces of the metal plate 22 are fixedly connected with a heat-conducting rod 36. The interior of the recovery box 32 is fixedly connected with a frame 37. The interior of the frame 37 is provided with an adsorption cotton 33, and the adsorption cotton 33 is fitted with the heat-conducting rod 36. The mixed diiodine can be discharged into the distillation tank through the connecting pipe 17. Inside the box 4, the electric heating tube 12 is connected to the external power supply. The electric heating tube 12 can be used to heat the diiodine liquid in the distillation box 4 at high temperature. The distillate distilled out at high temperature can be discharged into the interior of the purification box 2 through the distillation tube 11. When the diiodine distillation is completed, the sliding of the slide plate 35 and the opening 34 is used to make the slide plate 35 drive the metal plate 22 and the heat-conducting rod 36 to move. When the metal plate 22 is moving, the heat-conducting rod 36 can penetrate the inner wall of the recovery box 32 and fit the surface of the distillation box 4, so that the heat-conducting rod 36 can transfer the heat on the surface of the distillation box 4. The slide plate 35 is pushed backward so that the metal plate 22 can drive the heat-conducting rod 36 to enter the interior of the adsorption cotton 33, so that the adsorption cotton 33 can keep the heat transferred in the heat-conducting rod 36 warm and the adsorption cotton 33 can collect the heat, so that the distillation box 4 can be preheated in advance when in use, thereby increasing the diiodine distillation efficiency.

[0048] The upper surface of the base 1 is fixedly connected with a purification box 2, and the purification box 2 is communicated with the distillation tube 11, the side surface of the purification box 2 is fixedly connected with a drain pipe 9, the interior of the purification box 2 is slidably connected with a slide rod 3, the end of the slide rod 3 close to the purification box 2 is fixedly connected with a rotating plate 21, the interior of the rotating plate 21 is provided with a first circular hole 20, the lower surface of the rotating plate 21 is movably connected with a movable rod 19 through a bearing, the end of the movable rod 19 away from the rotating plate 21 is fixedly connected with a separation plate 10, the interior of the separation plate 10 is provided with a second circular hole 18, when the diiodine distillate enters the interior of the purification box 2, the distillate is precipitated and layered by precipitation, when the distillation precipitation layering is completed, the slide rod 3 is pushed downward to make the slide rod 3 can drive the rotating plate 21 and the separation plate 10 to move downward together. Since the surface of the separation plate 10 is in contact with the inner wall of the purification box 2, the liquid at the layered position can pass through the first circular hole 20 and the second circular hole 18 through the movement of the rotating plate 21 and the separation plate 10. The rotating plate 21 and the separation plate 10 are slowly pushed. When the rotating plate 21 and the separation plate 10 move to the layered position of the distillate, the sliding rod 3 is rotated to drive the rotating plate 21 to rotate. When the rotating plate 21 is rotating, the corresponding positions of the first circular hole 20 and the second circular hole 18 are staggered so that the layered liquid no longer passes through the separation plate 10 and the rotating plate 21, so that diiodine is not easily wasted during precipitation purification, and the diiodine purification quality can be improved at the same time.

[0049] When in use, the diiodine raw material can be discharged into the interior of the mixing box 7 through the liquid inlet pipe 5, and the starting motor 6 can drive the rotating rod 15 and the stirring blade 14 to rotate. When the stirring blade 14 rotates, the diiodine raw material in the mixing box 7 can be mixed. The handle 16 is held to move the embedded seat 23, the horizontal plate 25 and the regulating seat 27 together. When the embedded seat 23 pushes the horizontal plate 25 and the regulating seat 27 to move, the rubber strip 24 can fit the surface of the swing plate 30. When the swing plate 30 is pushed by friction by the elasticity of the spring 29, the swing plate 30 can move to squeeze the spring 29, and the swing plate 30 can move to squeeze the spring 29. The number of times the plate 30 and the rubber strip 24 rub and jam can determine the depth of engagement between the regulating seat 27 and the connecting pipe 17. The mixed diiodine can be discharged into the interior of the distillation box 4 through the connecting pipe 17. The diiodine liquid in the distillation box 4 can be heated at high temperature by the electric heating tube 12. The distillate distilled at high temperature can be discharged into the interior of the purification box 2 through the distillation tube 11. When the diiodine distillation is completed, the sliding plate 35 and the opening 34 are slidable, so that the sliding plate 35 can drive the metal plate 22 and the heat-conducting rod 36 to move. When the metal plate 22 is moving, the heat-conducting rod 36 can penetrate the recovery box 32. The inner wall fits with the surface of the distillation box 4, so that the heat-conducting rod 36 can transfer the heat on the surface of the distillation box 4, and the slide plate 35 is pushed backward, so that the metal plate 22 can drive the heat-conducting rod 36 to enter the interior of the adsorption cotton 33, so that the adsorption cotton 33 can keep the heat transferred in the heat-conducting rod 36 warm and the adsorption cotton 33 can collect the heat. When the diiodine distillate enters the interior of the purification box 2, the distillate is precipitated and layered by precipitation. When the distillation precipitation and layering are completed, the slide bar 3 is pushed downward, so that the slide bar 3 can drive the rotating plate 21 and the separation plate 10 to move downward together. The surface of the separation plate 10 is fitted with the inner wall of the purification box 2. Through the movement of the rotating plate 21 and the separation plate 10, the liquid at the layered position can pass through the inside of the first circular hole 20 and the second circular hole 18. The rotating plate 21 and the separation plate 10 are slowly pushed. When the rotating plate 21 and the separation plate 10 move to the layered position of the distillate, the sliding rod 3 is rotated so that it can drive the rotating plate 21 to rotate. When the rotating plate 21 is rotating, the corresponding positions of the first circular hole 20 and the second circular hole 18 are staggered so that the layered liquid no longer passes through the inside of the separation plate 10 and the rotating plate 21, so that diiodine is not easily wasted during precipitation purification.

[0050] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A method for preparing and purifying high-purity diiodine, characterized in that: The following steps are involved: S1. Raw material reaction: The box used can be installed on the upper surface of the base (1), and the diiodine raw material and the organic catalyst are stirred and mixed, so that the diiodine raw material can undergo a chemical reaction and be discharged into the distillation part of the equipment for distillation; S2. High temperature distillation: The diiodine after the reaction can be distilled at high temperature by using high temperature, and the distillate of diiodine distillation at high temperature can enter the purification part of the equipment for treatment; S3, purification treatment: The diiodine distilled out is precipitated and layered by a precipitation method. After the diiodine layering is completed, the precipitate can be discharged so that the diiodine can be purified.

2. The high-purity diiodine preparation and purification device according to claim 1, comprising a base (1), characterized in that: The upper surface of the base (1) is fixedly connected to a mixing box (7), the upper surface of the mixing box (7) is fixedly connected to a motor (6), the output end of the motor (6) is fixedly connected to a rotating rod (15), both sides of the rotating rod (15) are fixedly connected to stirring blades (14), the upper surface of the mixing box (7) is fixedly connected to a liquid inlet pipe (5), and the side surface of the mixing box (7) is fixedly connected to a connecting pipe (17); The side surface of the mixing box (7) is connected to an engaging seat (23), the side surface of the engaging seat (23) is fixedly connected to a handle (16), the side surface of the engaging seat (23) is fixedly connected to a transverse plate (25), the front surface of the transverse plate (25) is fixedly connected to a connecting plate (26), the front surface of the connecting plate (26) is fixedly connected to an adjusting seat (27), the upper surface of the engaging seat (23) is provided with a rubber strip (24), the inner wall of the mixing box (7) is fixedly connected to a fixing seat (28), the lower surface of the fixing seat (28) is fixedly connected to a movable plate (31), the rear surface of the movable plate (31) is movably connected to a swing plate (30) via a bearing, the side surface of the swing plate (30) is fixedly connected to a spring (29), and the spring (29) is fixedly connected to the fixing seat (28).

3. A preparation and purification equipment for high-purity diiodine according to claim 2, characterized in that: A distillation box (4) is fixedly connected to the upper surface of the base (1), and the distillation box (4) is in communication with a connecting pipe (17).

4. The preparation and purification equipment for high-purity diiodine according to claim 3, characterized in that: An electric heating tube (12) is fixedly connected to the interior of the distillation box (4), and a partition (13) is fixedly connected to the interior of the distillation box (4), and the partition (13) is located below the electric heating tube (12).

5. The preparation and purification equipment for high-purity diiodine according to claim 3, characterized in that: A temperature sensor (8) is fixedly connected to the front surface of the distillation box (4), and a distillation tube (11) is fixedly connected to the side surface of the distillation box (4).

6. The preparation and purification equipment for high-purity diiodine according to claim 3, characterized in that: The rear surface of the distillation box (4) is fixedly connected to a recovery box (32), the upper surface of the recovery box (32) is provided with an opening (34), the interior of the opening (34) is slidably connected to a slide plate (35), the lower surface of the slide plate (35) is fixedly connected to a metal plate (22), and the front and rear surfaces of the metal plate (22) are fixedly connected to heat-conducting rods (36).

7. The preparation and purification equipment for high-purity diiodine according to claim 6, characterized in that: The interior of the recovery box (32) is fixedly connected with a frame (37), and adsorption cotton (33) is arranged inside the frame (37), and the adsorption cotton (33) is in contact with the heat-conducting rod (36).

8. The preparation and purification equipment for high-purity diiodine according to claim 1, characterized in that: A purification box (2) is fixedly connected to the upper surface of the base (1), and the purification box (2) is in communication with the distillation tube (11). A drainage pipe (9) is fixedly connected to the side surface of the purification box (2).

9. The preparation and purification equipment for high-purity diiodine according to claim 8, characterized in that: The interior of the purification box (2) is slidably connected to a slide rod (3), and one end of the slide rod (3) close to the purification box (2) is fixedly connected to a rotating plate (21), and a first circular hole (20) is provided inside the rotating plate (21).

10. The preparation and purification equipment for high-purity diiodine according to claim 9, characterized in that: The lower surface of the rotating plate (21) is movably connected to a movable rod (19) via a bearing, and one end of the movable rod (19) away from the rotating plate (21) is fixedly connected to a separation plate (10), and a second circular hole (18) is provided inside the separation plate (10).

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