CN219879917U - Chlorosilane pre-esterification reaction kettle - Google Patents
Chlorosilane pre-esterification reaction kettle Download PDFInfo
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- CN219879917U CN219879917U CN202321083681.3U CN202321083681U CN219879917U CN 219879917 U CN219879917 U CN 219879917U CN 202321083681 U CN202321083681 U CN 202321083681U CN 219879917 U CN219879917 U CN 219879917U
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- Prior art keywords
- kettle
- materials
- reaction kettle
- pipe
- kettle body
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- 238000005886 esterification reaction Methods 0.000 title claims abstract description 36
- 239000005046 Chlorosilane Substances 0.000 title claims abstract description 26
- KOPOQZFJUQMUML-UHFFFAOYSA-N chlorosilane Chemical compound Cl[SiH3] KOPOQZFJUQMUML-UHFFFAOYSA-N 0.000 title claims abstract description 26
- 238000006243 chemical reaction Methods 0.000 claims abstract description 46
- 238000007599 discharging Methods 0.000 claims abstract description 16
- 230000032050 esterification Effects 0.000 claims abstract description 8
- 238000003756 stirring Methods 0.000 claims description 13
- 239000000463 material Substances 0.000 abstract description 40
- 238000000034 method Methods 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 5
- 239000007788 liquid Substances 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 15
- 210000003298 dental enamel Anatomy 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 3
- 229910000041 hydrogen chloride Inorganic materials 0.000 description 3
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- -1 alkoxy silane Chemical compound 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000011344 liquid material Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- 125000001424 substituent group Chemical group 0.000 description 1
Abstract
The utility model discloses a chlorosilane pre-esterification reaction kettle, which comprises a kettle body, a stirrer, a feed pipe and a discharge pipe, wherein the stirrer is arranged in the reaction kettle; the discharging pipe comprises an overflow pipe and a full discharging pipe, the overflow pipe is arranged on the side wall of the kettle body, and the full discharging pipe is arranged at the bottom of the kettle body. The feeding pipe extends to the bottom of the reaction kettle, and materials are directly added to the bottom of the reaction kettle, so that the materials are not splashed, and the situation that the materials are carried out of the kettle by tail gas can be effectively reduced; the reaction materials are fully contacted and reacted under the action of the stirrer, so that the pre-esterification effect is improved, and the subsequent esterification reaction is promoted. When the equipment runs, materials automatically flow into the esterification tower in the next working procedure through the overflow pipe, so that not only is energy saved, but also the risk of tank emission caused by overhigh liquid level in the reaction kettle is avoided; when the equipment is parked, the materials are discharged through the full discharging pipe, and the materials cannot remain in the kettle.
Description
Technical Field
The utility model relates to the technical field of esterification reaction, in particular to a chlorosilane pre-esterification reaction kettle.
Background
In the process of producing alkoxy silane, partial alcohol raw material and chlorosilane are pre-reacted, the chlorosilane is converted into a substituent intermediate under the condition of lower than a certain temperature, then the intermediate and the rest alcohol are thoroughly reacted at the temperature of more than 80 ℃ to finally be converted into the product. The aim of the pre-reaction is to react the chlorosilane into a substituted intermediate with higher flash point under the condition of low temperature, so that the entrainment of liquid materials can be reduced and the loss of the materials can be reduced in the process of volatilizing and separating the byproduct hydrogen chloride gas.
The common chlorosilane pre-esterification reaction is to feed from the top of a reaction kettle, and in the process of adding materials, the materials are easy to splash, so that certain materials are carried in tail gas. Patent CN201701927U provides an esterification reaction cauldron by bottom feeding, and the mode of bottom feeding must have a U type bend in feed inlet department, and when the overall system stopped the blowing, the material that can remain raw materials and partial reaction are complete in the inlet pipe caused certain difficulty for the maintenance, has certain potential safety hazard.
Disclosure of Invention
In order to solve the technical problems, the utility model provides a chlorosilane pre-esterification reaction kettle which can effectively prevent materials from splashing and prevent tail gas from carrying materials.
In order to achieve the technical purpose, the utility model adopts the following scheme:
the chlorosilane pre-esterification reaction kettle comprises a kettle body, a stirrer, a feed pipe and a discharge pipe, wherein the stirrer is arranged in the kettle body, the discharge pipe comprises an overflow pipe and a full discharge pipe, the overflow pipe is arranged on the side wall of the kettle body, and the full discharge pipe is arranged at the bottom of the kettle body; the feed pipe is inserted into the kettle body from the top of the kettle body and extends to the lower part of the kettle body. Wherein, the length of the feed pipe can be adjusted according to the characteristics of the reaction materials.
Compared with the prior art, the utility model has the beneficial effects that:
the feeding pipe of the reaction kettle extends to the bottom of the reaction kettle, and materials are directly added to the bottom of the reaction kettle, so that the materials are not splashed, and the situation that the materials are carried out of the reaction kettle by tail gas can be effectively reduced; after the materials enter the reaction kettle, under the action of stirring, the materials are fully contacted and reacted, the pre-esterification effect is improved, the subsequent esterification reaction is promoted, and the reaction rate is improved. The overflow pipe is arranged to replace a pumping mode, so that materials automatically flow into an esterification tower in the next working procedure by means of the height difference of equipment, resources are saved, and the risk of tank overflow caused by overhigh liquid level in the reaction kettle is avoided; the full discharging pipe is used for discharging materials in the reaction kettle during stopping and overhauling, and the materials cannot remain in the kettle.
Further, be equipped with driving motor on the reation kettle, driving motor is connected with the agitator for drive agitator, be provided with organic seal between driving motor and the agitator, guarantee reation kettle's leakproofness.
Further, stirring paddles are arranged on the stirrer, the distance between the stirrer and the bottom of the reaction kettle is 10-15 cm, and the number of the stirring paddles is at least 2 groups. The stirrer has good stirring and dispersing properties, realizes efficient and uniform stirring, and ensures the efficiency of the pre-esterification reaction.
Further, the number of the feeding pipes is 2, and the feeding pipes are respectively connected with different raw material storage tanks.
Further, the reaction kettle is also provided with a pressure gauge, a thermometer, a clean valve and a tail gas outlet, wherein the pressure gauge and the tail gas outlet are arranged at the top of the kettle body, the thermometer extends from the top of the kettle body to the inside of the reaction kettle, and the clean valve is arranged at the bottom of the kettle body.
Further, the kettle body is an enamel kettle body. The enamel kettle is corrosion-resistant, so that hydrogen chloride gas generated by chlorosilane reaction can not corrode equipment, the reaction effect can not be influenced, and the service life is long.
Drawings
FIG. 1 is a schematic structural diagram of a chlorosilane pre-esterification reaction kettle of the utility model.
In the figure, 1, a driving motor; 2. sealing by a machine; 3. a stirrer; 4. stirring paddles; 5. a feed pipe; 6. an overflow pipe; 7. a kettle body; 8. a pressure gauge; 9. a thermometer; 10. cleaning the valve; 11. a full discharge pipe; 12. and a tail gas outlet.
Detailed Description
The present utility model will be described in detail with reference to the following embodiments for a full understanding of the objects, features and effects of the present utility model, but the present utility model is not limited thereto.
Referring to fig. 1, the utility model provides a chlorosilane pre-esterification reaction kettle, which comprises a kettle body 7, a stirrer 3, a feed pipe 5 and a discharge pipe, wherein the stirrer 3 is arranged in the kettle body 7, and the feed pipe 5 is inserted into the kettle body 7 from the top of the kettle body 7 and extends to the lower part of the kettle body 7; the discharging pipe comprises an overflow pipe 6 and a full discharging pipe 11, the overflow pipe 6 is arranged on the side wall of the kettle body 7, and the full discharging pipe 11 is arranged at the bottom of the kettle body 7. Wherein, the quantity of inlet pipe 5 is 2, is connected with different raw materials storage tanks respectively, and the length of inlet pipe 5 can be adjusted according to the characteristic of reaction material.
The chlorosilane pre-esterification reaction kettle is provided with a driving motor 1, the driving motor 1 is connected with a stirrer 3 and used for driving the stirrer 3, and an organic seal 2 is arranged between the stirrer 3 and the driving motor 1, so that the tightness of the reaction kettle is ensured. Be provided with stirring rake 4 on the agitator 3, agitator 3 is 10~15cm from the reation kettle bottom, and stirring rake 4 quantity is 2 sets at least, and this agitator has good stirring and dispersion, has realized high-efficient, even stirring, ensures the efficiency of pre-esterification reaction.
The chlorosilane pre-esterification reaction kettle is further provided with a pressure gauge 8, a thermometer 9, a clean valve 10 and a tail gas outlet 12, wherein the pressure gauge 8 and the tail gas outlet 12 are arranged at the top of the kettle body 7, the thermometer 9 extends from the top of the kettle body 7 to the inside of the reaction kettle, and the clean valve 10 is arranged at the bottom of the kettle body 7.
The kettle body 7 of the chlorosilane pre-esterification reaction kettle is an enamel kettle body, the enamel kettle is corrosion-resistant, and hydrogen chloride gas generated by the chlorosilane reaction can not corrode equipment, so that the reaction can be continuously and stably carried out, and the service life of the equipment is longer.
When the chlorosilane pre-esterification reaction kettle works, reaction materials enter the reaction kettle from a feed pipe 5, a driving motor 1 drives a stirrer 3 to stir the materials, the materials are promoted to be fully contacted and reacted, the reaction materials continuously enter the reaction kettle from the feed pipe 5, the reacted mixture is continuously discharged from an overflow pipe 6 and enters the next working procedure, and gas generated by the reaction enters a tail gas treatment system from a tail gas outlet 12, so that continuous production is realized. In the production process, the pressure gauge 8 and the thermometer 9 measure the pressure and the temperature in the reaction kettle, so that the safe reaction is ensured.
When the chlorosilane pre-esterification reaction kettle stops running, the pipeline valve of the overflow pipe 6 is closed, and the pipeline valve of the full discharge pipe 11 is adjusted, so that materials in the reaction kettle enter a subsequent esterification tower, after discharging is finished, the discharging valve 10 is opened, the materials in the kettle are discharged completely, and the residual materials in the pipeline are avoided.
According to the chlorosilane pre-esterification reaction kettle, the feeding pipe extends to the bottom of the reaction kettle, and materials are directly added to the bottom of the reaction kettle, so that the materials are not splashed, and the materials can be effectively reduced from being carried out of the reaction kettle by tail gas; after the materials enter the reaction kettle, under the action of stirring, the materials are fully contacted and reacted, the pre-esterification effect is improved, the subsequent esterification reaction is promoted, and the reaction rate is improved. The overflow pipe replaces a pumping mode, and the materials automatically flow into the esterification tower of the next procedure by means of the height difference of the equipment, so that resources are saved, and the risk of tank emission caused by overhigh liquid level in the reaction kettle is avoided. The full discharging pipe is used for discharging materials in the reaction kettle during stopping and overhauling, and the materials cannot remain in the kettle.
The utility model can be used for the pre-esterification reaction of chlorosilane, and can also be used as an esterification reaction kettle or mixing equipment of other materials.
Finally, it should be noted that: the above list is only a preferred embodiment of the present utility model, and it is understood that those skilled in the art can make modifications and variations thereto, and it is intended that the present utility model be construed as the scope of the appended claims and their equivalents.
Claims (5)
1. The chlorosilane pre-esterification reaction kettle comprises a kettle body (7), a stirrer (3), a feed pipe (5) and a discharge pipe, wherein the stirrer (3) is arranged inside the kettle body (7),
the discharging pipe comprises an overflow pipe (6) and a full discharging pipe (11), the overflow pipe (6) is arranged on the side wall of the kettle body (7), and the full discharging pipe (11) is arranged at the bottom of the kettle body (7);
the feed pipe (5) is inserted into the kettle body (7) from the top of the kettle body (7) and extends to the lower part of the kettle body (7).
2. The chlorosilane pre-esterification reaction kettle according to claim 1, wherein a driving motor (1) is arranged on the reaction kettle, the driving motor (1) is connected with a stirrer (3), and an organic seal (2) is arranged between the driving motor (1) and the stirrer (3).
3. The chlorosilane pre-esterification reaction kettle as claimed in claim 1, wherein the stirrer (3) is provided with a stirring paddle (4), and the distance between the stirrer (3) and the bottom of the reaction kettle is 10-15 cm.
4. The chlorosilane pre-esterification reactor as claimed in claim 1, wherein the number of the feed pipes (5) is 2.
5. The chlorosilane pre-esterification reaction kettle according to claim 1, wherein the reaction kettle is further provided with a pressure gauge (8), a thermometer (9), a clean-up valve (10) and a tail gas outlet (12), wherein the pressure gauge (8) and the tail gas outlet (12) are arranged at the top of the kettle body (7), the thermometer (9) extends from the top of the kettle body (7) to the inside of the reaction kettle, and the clean-up valve (10) is arranged at the bottom of the kettle body (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321083681.3U CN219879917U (en) | 2023-05-08 | 2023-05-08 | Chlorosilane pre-esterification reaction kettle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321083681.3U CN219879917U (en) | 2023-05-08 | 2023-05-08 | Chlorosilane pre-esterification reaction kettle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219879917U true CN219879917U (en) | 2023-10-24 |
Family
ID=88397708
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321083681.3U Active CN219879917U (en) | 2023-05-08 | 2023-05-08 | Chlorosilane pre-esterification reaction kettle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219879917U (en) |
-
2023
- 2023-05-08 CN CN202321083681.3U patent/CN219879917U/en active Active
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| GR01 | Patent grant |