CN212974211U - Benzene sulfonyl chloride separation and purification distillation device - Google Patents
Benzene sulfonyl chloride separation and purification distillation device Download PDFInfo
- Publication number
- CN212974211U CN212974211U CN202021196251.9U CN202021196251U CN212974211U CN 212974211 U CN212974211 U CN 212974211U CN 202021196251 U CN202021196251 U CN 202021196251U CN 212974211 U CN212974211 U CN 212974211U
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- stills
- casing
- distillation
- sulfonyl chloride
- vacuum pump
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Abstract
The utility model discloses a benzene sulfonyl chloride separation purification distillation plant, including the stills casing, be equipped with the coil type heater in the stills casing, the stills casing is equipped with outward and presss from both sides cover type heater, and stills casing bottom is equipped with the high boiling point thing discharge port, and stills casing top is equipped with the vacuum pump, is flange joint between vacuum pump and the stills casing, and the top of stills casing is equipped with feed inlet and gas outlet, and stills casing top is equipped with the observation window. The vacuum pump that still casing top was equipped with can effectual reduction cauldron pressure, and control distillation temperature improves the purity of benzene sulfonyl chloride. The jacket type heater and the coil type heater are used for heating in the same mode, so that the distillation time is shortened, and the efficiency is improved. An observation window is arranged at the top of the distillation kettle shell, and the change of the distillate in the distillation device can be observed by naked eyes, so that the production of high-purity benzene sulfonyl chloride is an indispensable link.
Description
Technical Field
The utility model relates to a benzene sulfonyl chloride separation and purification distillation plant.
Background
Benzenesulfonyl chloride is a dye and a medical intermediate, distillation is a key process for producing high-quality benzenesulfonyl chloride, and the following problems often occur in the distillation operation. Firstly, the distillation temperature mainly depends on the absolute pressure in a distillation kettle, and the vacuum degree of a vacuum pump used by various manufacturers at present is not high, so that the absolute pressure in the distillation kettle is too high, the heating temperature is too high, so that the benzene sulfonyl chloride is locally decomposed, and impurities with high boiling point are gasified, so that the produced benzene sulfonyl chloride is not pure. Then, the currently used distillation apparatus has a limited heat transfer area, which restricts the heat transfer amount per unit area, resulting in long distillation time and low efficiency. Finally, the current distillation apparatus cannot observe the change of the distillate in the distillation still, resulting in low purity of the produced benzenesulfonyl chloride.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects of the prior art and providing a benzene sulfonyl chloride separation and purification distillation device with convenient use.
Benzene sulfonyl chloride separation and purification distillation plant, including the stills casing, be equipped with the snake tubular heater in the stills casing, the stills casing is equipped with outside the cover type heater that presss from both sides, and stills casing bottom is equipped with the high boiling point thing discharge port, and stills casing top is equipped with ring flange one, the connection face of ring flange one on be equipped with sealed recess, be equipped with the ring flange two that matches with ring flange one on the vacuum pump, be equipped with the sealing washer in the sealed recess, the sealing washer is higher than the surface of sealed recess, the bolted connection is crossed to ring flange one and ring flange two, the top of stills casing is equipped with feed inlet and gas outlet, stills casing top is equipped with the.
As a further improvement, the shell of the distillation kettle is an enamel kettle.
As a further improvement, the bottom of the distillation kettle shell is provided with a stirrer.
As a further improvement, the vacuum pump is a reciprocating vacuum pump.
As a further improvement, a sealing ring is arranged between the observation window and the distillation kettle shell.
As a further improvement, the edges of the flange plate I and the flange plate II are coated with sealant.
Has the advantages that:
the utility model relates to an ingenious, the vacuum pump that stills shell top was equipped with is reciprocating type vacuum pump, can effectual reduction cauldron press, and control distillation temperature improves the purity of benzene sulfonyl chloride. The sealing performance of the device is better due to the design of the sealing ring and the sealing groove. The jacket type heater and the coil type heater are used for heating in the same mode, so that the distillation time is shortened, and the efficiency is improved. An observation window is arranged at the top of the distillation kettle shell, and the change of the distillate in the distillation device can be observed by naked eyes, so that the production of high-purity benzene sulfonyl chloride is an indispensable link.
Drawings
FIG. 1 is a schematic diagram of the general structure of a benzenesulfonyl chloride separating and purifying distillation apparatus;
FIG. 2 is a schematic view of the connection between the first flange and the second flange;
1. distillation still shell 2, jacket type heater 3, coil type heater 4, stirrer 5, high boiling point material outlet 6, feed inlet 7, observation window 8, vacuum pump 9, gas outlet 10, flange one 11, sealing groove 12, flange two
Detailed Description
In order to deepen the understanding of the present invention, the present invention will be further described in detail with reference to the following embodiments and the attached drawings, and the embodiments are only used for explaining the present invention, and do not constitute the limitation to the protection scope of the present invention.
As shown in figure 1, the benzenesulfonyl chloride separation and purification distillation device comprises a distillation kettle shell 1, wherein the distillation kettle shell 1 is an enamel kettle, a coil heater 3 is arranged in the distillation kettle shell 1, a jacket type heater 2 is arranged outside the distillation kettle shell 1, a high-boiling-point substance discharge port 5 is arranged at the bottom of the distillation kettle shell 1, a first flange plate 10 is arranged at the top of the distillation kettle shell 1, a sealing groove 11 is arranged on the connecting surface of the first flange plate 10, a second flange plate 12 matched with the first flange plate 10 is arranged on a vacuum pump 8, a sealing ring is arranged in the sealing groove 11 and is higher than the surface of the sealing groove 11, the first flange plate 10 and the second flange plate 12 are connected through bolts, sealing glue is coated on the edges of the first flange plate 10 and the second flange plate 12, a feed inlet 6 and a gas outlet 9 are arranged at the top of the distillation kettle shell 1, an, a sealing ring is arranged between the observation window 7 and the distillation kettle shell 1, and a stirrer is arranged at the bottom of the distillation kettle shell 1.
During the use, add crude benzene sulfonyl chloride to stills casing 1 through the feed inlet, press from both sides cover type heater 2 and coil type heater 3 and heat crude benzene sulfonyl chloride together for the distillation time shortens, has improved efficiency, and the agitator begins work simultaneously, makes crude benzene sulfonyl chloride be heated more evenly. The impurity mainly contained in the crude benzene sulfonyl chloride is phenyl sulfone, the boiling point of the phenyl sulfone is higher than that of the benzene sulfonyl chloride, when the temperature reaches about 220 ℃, the benzene sulfonyl chloride is gasified and enters a condensing device from a gas outlet 9, the phenyl sulfone at the bottom of a distillation kettle shell is discharged from a high-boiling-point material discharge port 5, and the distillation of the benzene sulfonyl chloride is completed.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. Benzene sulfonyl chloride separation purification distillation plant, its characterized in that, including the stills casing, be equipped with the coil type heater in the stills casing, the stills casing is equipped with outward and presss from both sides cover type heater, and stills casing bottom is equipped with the high boiling point thing discharge port, and stills casing top is equipped with ring flange 1, ring flange 1 connect and be equipped with sealed recess on the face, be equipped with the ring flange 2 that matches with ring flange 1 on the vacuum pump, be equipped with the sealing washer in the sealed recess, the sealing washer is higher than the surface of sealed recess, ring flange 1 and ring flange 2 pass through bolted connection, the top of stills casing is equipped with feed inlet and gas outlet, stills casing top is equipped with the observation window.
2. The benzenesulfonyl chloride separating, purifying and distilling device according to claim 1, wherein the distillation kettle shell is an enamel kettle.
3. The benzenesulfonyl chloride separating, purifying and distilling device according to claim 1, wherein the bottom of the distillation still shell is provided with a stirrer.
4. The benzenesulfonyl chloride separating, purifying and distilling device according to claim 1, wherein the vacuum pump is a reciprocating vacuum pump.
5. The benzenesulfonyl chloride separating, purifying and distilling device of claim 1, wherein a sealing ring is arranged between the observation window and the distillation still shell.
6. The benzenesulfonyl chloride separating, purifying and distilling device of claim 1, wherein the edges of the flange plate 1 and the flange plate 2 are coated with a sealant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021196251.9U CN212974211U (en) | 2020-06-24 | 2020-06-24 | Benzene sulfonyl chloride separation and purification distillation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021196251.9U CN212974211U (en) | 2020-06-24 | 2020-06-24 | Benzene sulfonyl chloride separation and purification distillation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212974211U true CN212974211U (en) | 2021-04-16 |
Family
ID=75424444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021196251.9U Expired - Fee Related CN212974211U (en) | 2020-06-24 | 2020-06-24 | Benzene sulfonyl chloride separation and purification distillation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212974211U (en) |
-
2020
- 2020-06-24 CN CN202021196251.9U patent/CN212974211U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210416 |
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| CF01 | Termination of patent right due to non-payment of annual fee |