CN212504665U - Twelve carbon alcohol ester production line - Google Patents
Twelve carbon alcohol ester production line Download PDFInfo
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- CN212504665U CN212504665U CN202021022837.3U CN202021022837U CN212504665U CN 212504665 U CN212504665 U CN 212504665U CN 202021022837 U CN202021022837 U CN 202021022837U CN 212504665 U CN212504665 U CN 212504665U
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Abstract
The utility model relates to a dodecanol ester production line, including isobutyraldehyde reaction tank, catalyst groove, reaction tower, dealdehyder tower, wash bowl, dehydration tower, rectifying column, finished product jar, connect to reaction tower upper portion by the reaction pump after the catalyst groove inserts the isobutyraldehyde reaction tank, the reaction tower lower part connects to the dealdehyder tower through the dealdehyder charge-pump, and the dealdehyder tower bottom connects the water washing jar through the wash pump, and the wash bowl connects to the dehydrating column middle part through the dehydration pump, and the dehydrating column bottom connects the rectifying column middle part, and the rectifying column top connects the finished product jar. The production line has the advantages of simple integral structure, safe use and low cost, and can effectively improve the purity and yield.
Description
Technical Field
The utility model relates to a chemical industry equipment, a dodecanol ester production line specifically says so.
Background
With the heat of environmental protection technology, environmental protection coatings such as water-based coatings and the like will be developed rapidly, wherein the water-based coating film-forming additive dodecanol ester has wide market space and good development prospect. The prior synthesis process takes isobutyraldehyde as a raw material, adopts a basic catalyst, and is formed by aldol condensation and Cannizzaro reaction, the isobutyraldehyde is added into the catalyst or isobutyraldehyde is added into the catalyst in the traditional preparation, the catalyst is usually excessive in the reaction, the yield of the dodecanol ester is not improved, the dodecanol ester is not suitable for industrialized production and application, and meanwhile, the subsequent removal of the catalyst is inconvenient, the cost is high, and the purity of the dodecanol ester is not improved.
Disclosure of Invention
The utility model provides a simple structure, safe in utilization, with low costs, can effectively improve the twelve carbon alcohol ester production line of purity, yield.
The utility model adopts the technical proposal that: a dodecanol ester production line is characterized in that: the device comprises an isobutyraldehyde reaction tank, a catalyst tank, a reaction tower, an aldehyde-removing tower, a water washing tank, a dehydration tower, a rectification tower and a finished product tank, wherein the catalyst tank is connected to the upper part of the reaction tower through a reaction pump after being connected to the isobutyraldehyde reaction tank, the lower part of the reaction tower is connected to the aldehyde-removing tower through a formaldehyde-removing feed pump, the bottom of the aldehyde-removing tower is connected to the water washing tank through the water washing pump, the water washing tank is connected to the middle part of the dehydration tower through the dehydration pump, the bottom of the dehydration tower is connected to the middle part of the rectification tower.
Further, the bottom of the aldehyde removal tower is connected to the middle part of the negative pressure aldehyde removal tower through a negative pressure aldehyde removal pump, and the bottom of the negative pressure aldehyde removal tower is connected to a water washing tank through a water washing pump.
Furthermore, the rectifying tower is divided into a light component removing rectifying tower and a heavy component removing rectifying tower, the bottom of the dehydrating tower is connected with the middle part of the light component removing rectifying tower, the bottom of the light component removing rectifying tower is connected with the middle part of the heavy component removing rectifying tower, and the top of the heavy component removing rectifying tower is connected with a finished product tank.
Furthermore, the top of the light component removal rectifying tower is connected with a reflux tank through a condenser, and the reflux tank is connected to the upper part of the light component removal rectifying tower through a reflux pump.
The utility model discloses a pass through the catalyst groove with alkaline catalyst and add the isobutyraldehyde groove, the repumping is reacted to the reaction tower in, can the effective control catalyst quantity, avoid follow-up catalyst excessive inconvenience of getting rid of, it is high cost, and do not introduce because of handling other byproducts that alkaline catalyst introduced, be convenient for improve final product purity, simultaneously through the dealdehyding tower of second grade, the negative pressure dealdehyding tower can effectively deviate from excessive isobutyraldehyde and return and recycle, enter dehydration tower dehydration and send to and take off light rectifying column and heavy rectifying column after the washing, deviate from light component and heavy component in proper order, combine reflux tank buffering backward flow to take off light rectifying column, take off light component thoroughly, and is effectual, finally collect the dodecanol ester finished product by the finished product jar, this production line overall structure is simple, safety in utilization, and low cost, can effectively improve purity, and yield.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: the system comprises an isobutyraldehyde reaction tank 1, a catalyst tank 2, a reaction pump 3, a reaction tower 4, a dealdehyding feed pump 5, a dealdehyding tower 6, a negative pressure dealdehyding pump 7, a negative pressure dealdehyding tower 8, a water washing pump 9, a water washing tank 10, a dewatering pump 11, a dewatering tower 12, a light-component removal rectifying tower 13, a condenser 14, a reflux tank 15, a reflux pump 16, a heavy-component removal rectifying tower 17, a finished product tank 18, a primary conveying pump 19 and a secondary conveying pump 20.
Detailed Description
The following further description is made in conjunction with the accompanying drawings and examples.
FIG. 1 shows: a dodecanol ester production line comprises an isobutyraldehyde reaction tank 1, a catalyst tank 2, a reaction pump 3, a reaction tower 4, a dealdehyding feed pump 5, a dealdehyding tower 6, a negative pressure dealdehyding pump 7, a negative pressure dealdehyding tower 8, a water washing pump 9, a water washing tank 10, a dewatering pump 11, a dewatering tower 12, a light-ends-removal rectifying tower 13, a condenser 14, a reflux tank 15, a reflux pump 16, a heavy-ends-removal rectifying tower 17, a finished product tank 18, a primary conveying pump 19 and a secondary conveying pump 20. The catalyst tank 2 is connected to the upper part of a reaction tower 4 by a reaction pump 3 after being connected to an isobutyraldehyde reaction tank 1, the lower part of the reaction tower 4 is connected to an aldehyde removal tower 6 by a formaldehyde removal feed pump 5, the bottom of the aldehyde removal tower 6 is connected to the middle part of a negative pressure aldehyde removal tower 8 by a negative pressure aldehyde removal pump 7, the bottom of the negative pressure aldehyde removal tower 8 is connected to a washing tank 10 by a washing pump 9, the washing tank 10 is connected to the middle part of a dehydration tower 12 by a dehydration pump 11, the bottom of the dehydration tower 12 is connected to the middle part of a light-component removal rectification tower 13 by a primary transfer pump 19, the top of the light-component removal rectification tower 13 is connected to a reflux tank 15 by a condenser 14, the reflux tank is connected to the upper part of the light-component removal rectification tower by a reflux pump 16, the bottom of the light-component removal rectification tower 13 is connected.
Claims (4)
1. A dodecanol ester production line is characterized in that: the device comprises an isobutyraldehyde reaction tank, a catalyst tank, a reaction tower, an aldehyde-removing tower, a water washing tank, a dehydration tower, a rectification tower and a finished product tank, wherein the catalyst tank is connected to the upper part of the reaction tower through a reaction pump after being connected to the isobutyraldehyde reaction tank, the lower part of the reaction tower is connected to the aldehyde-removing tower through a formaldehyde-removing feed pump, the bottom of the aldehyde-removing tower is connected to the water washing tank through the water washing pump, the water washing tank is connected to the middle part of the dehydration tower through the dehydration pump, the bottom of the dehydration tower is connected to the middle part of the rectification tower.
2. The dodecanol ester production line according to claim 1, wherein: the bottom of the aldehyde removing tower is connected to the middle part of the negative pressure aldehyde removing tower through a negative pressure aldehyde removing pump, and the bottom of the negative pressure aldehyde removing tower is connected to a water washing tank through a water washing pump.
3. The dodecanol ester production line according to claim 1, wherein: the rectifying tower is divided into a light component removing rectifying tower and a heavy component removing rectifying tower, the bottom of the dehydrating tower is connected with the middle part of the light component removing rectifying tower, the bottom of the light component removing rectifying tower is connected with the middle part of the heavy component removing rectifying tower, and the top of the heavy component removing rectifying tower is connected with a finished product tank.
4. A dodecanol ester production line according to claim 3, wherein: the top of the light component removing rectifying tower is connected with a reflux tank through a condenser, and the reflux tank is connected to the upper part of the light component removing rectifying tower through a reflux pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021022837.3U CN212504665U (en) | 2020-06-07 | 2020-06-07 | Twelve carbon alcohol ester production line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021022837.3U CN212504665U (en) | 2020-06-07 | 2020-06-07 | Twelve carbon alcohol ester production line |
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| Publication Number | Publication Date |
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| CN212504665U true CN212504665U (en) | 2021-02-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021022837.3U Active CN212504665U (en) | 2020-06-07 | 2020-06-07 | Twelve carbon alcohol ester production line |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113387801A (en) * | 2021-06-30 | 2021-09-14 | 润泰新材料股份有限公司 | Continuous production system of dodecyl alcohol ester |
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2020
- 2020-06-07 CN CN202021022837.3U patent/CN212504665U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113387801A (en) * | 2021-06-30 | 2021-09-14 | 润泰新材料股份有限公司 | Continuous production system of dodecyl alcohol ester |
| WO2023272948A1 (en) * | 2021-06-30 | 2023-01-05 | 润泰新材料股份有限公司 | Continuous production system of 2,2,4-trimethyl-1,3-pentanediolmono(2-methylpropanoate |
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