CN212504666U - Integral sixteen-carbon diester production line - Google Patents
Integral sixteen-carbon diester production line Download PDFInfo
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- CN212504666U CN212504666U CN202021022843.9U CN202021022843U CN212504666U CN 212504666 U CN212504666 U CN 212504666U CN 202021022843 U CN202021022843 U CN 202021022843U CN 212504666 U CN212504666 U CN 212504666U
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Abstract
The utility model relates to a line is once wholly produced to hexadecanediester, connect to reaction tower upper portion by the reaction pump behind the catalyst groove inserts the isobutyraldehyde reaction tank, the reaction tower lower part connects to the aldehyde-removing tower through the aldehyde-removing delivery pump, the aldehyde-removing tower bottom connects first washing tank through the pump, first washing tank connects the dodecanol ester finished product jar through one-level dehydration rectifier unit, the common pump of dodecanol ester finished product jar, isobutyric acid groove connects the esterification tower middle part, the esterification tower lower part connects the second washing tank through the pump, the second washing tank connects the hexadecanediester finished product jar through second grade dehydration rectifier unit. The production line is simple in overall structure, integrally prepared from basic raw materials, convenient to use integrally, short in production period and low in cost, and can effectively improve yield, purity and yield.
Description
Technical Field
The utility model relates to a chemical industry equipment, a sixteen carbon diester once wholly produce line specifically says so.
Background
The hexadecanediester is mainly used as a film forming aid of water-based coatings such as wall coatings and the like due to low toxicity, low odor and biodegradability, and has wide market space and good development prospect. The traditional preparation method needs to buy the raw material of the dodecyl alcohol ester separately, and the purchase, transportation, storage and the like of the dodecyl alcohol ester invisibly prolong the production period and increase the production cost, so that the method is not suitable for industrial mass production application.
Disclosure of Invention
The utility model provides a simple structure can compromise production cycle, cost control's a whole production line of hexadecane diester effectively.
The utility model adopts the technical proposal that: the utility model provides a sixteen carbon diester once wholly produces line which characterized in that: the device comprises an isobutyraldehyde reaction tank, a catalyst tank, a reaction tower, an aldehyde-removing tower, a first water washing tank, a first-stage dehydration and rectification device, a dodecanol ester finished product tank, an isobutyric acid tank, an esterification tower, a second water washing tank, a second-stage dehydration and rectification device and a hexadecanediester 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 an aldehyde-removing feeding pump, the bottom of the aldehyde-removing tower is connected to the first water washing tank through a pump, the first water washing tank is connected to the dodecanol ester finished product tank through the first-stage dehydration and rectification device, the dodecanol ester finished product tank and the isobutyric acid tank are jointly connected to the middle part of the esterification tower through a pump, the lower part of the esterification tower is connected to.
The first-stage dehydration rectifying device and the second-stage dehydration rectifying device both comprise a dehydration tower and a rectifying tower, and the bottom of the dehydration tower is connected with the middle part of the rectifying tower through a pump.
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 dodecyl ester finished product tank.
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.
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.
The utility model discloses a pass through catalyst groove with alkaline catalyst and add the isobutyraldehyde groove, the reaction in pumping to the reaction tower again, can the effective control catalyst quantity, avoid follow-up catalyst excessive inconvenience of getting rid of, 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 second grade dealdehyder tower, the excessive isobutyraldehyde of effective back-off of negative pressure dealdehyder tower returns and recycles, go into the dehydration tower dehydration and send to lightness-removing rectifying column and heavy component removal rectifying column after the washing, deviate from light component and heavy component in proper order, collect the dodecanol ester finished product by dodecanol ester finished product jar, pump dodecanol ester finished product and isobutyric acid into the esterification kettle jointly, after the esterification reaction pass through the second washing jar in proper order, the secondary dehydration tower, the secondary lightness-removing rectifying column, light component and heavy component are deviate from to the heavy component removal rectifying column again, combine reflux tank buffering reflux lightness-removing rectifying column, the light component removal is thorough, the effect is good, the hexadecanediester is finally collected by the hexadecanediester finished product tank, the production line is simple in integral structure, the hexadecanediester is integrally prepared from basic raw materials, the integral use is convenient and fast, the production period is short, the cost is low, and the yield, the purity and the yield can be effectively improved.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: isobutyraldehyde reaction tank 1, catalyst tank 2, reaction pump 3, reaction tower 4, dealdehyding feed pump 5, dealdehyding tower 6, negative pressure dealdehyding pump 7, negative pressure dealdehyding tower 8, first washing pump 9, first washing tank 10, first dewatering pump 11, first dewatering tower 12, first lightness-removing rectifying tower 13, condenser 14, reflux tank 15, reflux pump 16, second weight-removing rectifying tower 17, dodecanol ester finished product tank 18, primary conveying pump 19, secondary conveying pump 20, isobutyric acid tank 21, esterification tower 22, second washing pump 23, second washing tank 24, second dewatering pump 25, second dewatering tower 26, first lightness-removing rectifying tower 27, second weight-removing rectifying tower 28 and hexadecanediester finished product tank 29.
Detailed Description
The following further description is made in conjunction with the accompanying drawings and examples.
FIG. 1 shows: a one-time integral production line of hexadecane diester comprises an isobutyraldehyde reaction tank 1, a catalyst tank 2, a reaction pump 3, a reaction tower 4, an aldehyde-removing feed pump 5, an aldehyde-removing tower 6, a negative-pressure aldehyde-removing pump 7, a negative-pressure aldehyde-removing tower 8, a first washing pump 9, a first washing tank 10, a first dewatering pump 11, a first dewatering tower 12, a first light-removing rectifying tower 13, a condenser 14, a reflux tank 15, a reflux pump 16, a second heavy-removing rectifying tower 17, a dodecanol ester finished product tank 18, a primary conveying pump 19, a secondary conveying pump 20, an isobutyric acid tank 21, an esterification tower 22, a second washing pump 23, a second washing tank 24, a second dewatering pump 25, a second dewatering tower 26, a first light-removing rectifying tower 27, a second heavy-removing rectifying tower 28 and a hexadecane diester finished product tank 29.
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 an aldehyde 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 first water washing tank 10 by a first water washing pump 9, the first water washing tank 10 is connected to the middle part of a first dehydration tower 12 by a first dehydration pump 11, the bottom of the first dehydration tower 12 is connected to the middle part of a first light-removal rectification tower 13 by a primary transfer pump 19, the top of the first light-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 first light-removal rectification tower by a reflux pump 16, the bottom of the first light-removal rectification tower 13 is connected to the middle part of a first heavy-removal rectification tower 17 by. The dodecanol ester finished product tank 18 and the isobutyric acid tank 21 are jointly pumped to the middle part of the esterification tower 22, the bottom of the esterification tower 22 is connected with a second water washing tank 24 through a second water washing pump 23, the second water washing tank 24 is cut off from the middle part of a second dehydrating tower 26 through a second water supporting pump 25, the bottom of the second dehydrating tower 26 is connected with the middle part of a second light-component removing rectifying tower 27 through a conveying pump, the top of the second light-component removing rectifying tower 27 is connected with a reflux tank through a condenser, the reflux tank is connected to the upper part of the second light-component removing rectifying tower through a reflux pump, the bottom of the second light-component removing rectifying tower is connected with the middle part of a second heavy-component removing rectifying tower 28 through a conveying pump, and the top of the second heavy.
Claims (5)
1. The utility model provides a sixteen carbon diester once wholly produces line which characterized in that: the device comprises an isobutyraldehyde reaction tank, a catalyst tank, a reaction tower, an aldehyde-removing tower, a first water washing tank, a first-stage dehydration and rectification device, a dodecanol ester finished product tank, an isobutyric acid tank, an esterification tower, a second water washing tank, a second-stage dehydration and rectification device and a hexadecanediester 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 an aldehyde-removing feeding pump, the bottom of the aldehyde-removing tower is connected to the first water washing tank through a pump, the first water washing tank is connected to the dodecanol ester finished product tank through the first-stage dehydration and rectification device, the dodecanol ester finished product tank and the isobutyric acid tank are jointly connected to the middle part of the esterification tower through a pump, the lower part of the esterification tower is connected to.
2. The one-time integral production line of hexadecane diester as claimed in claim 1, which is characterized in that: the first-stage dehydration rectifying device and the second-stage dehydration rectifying device both comprise a dehydration tower and a rectifying tower, and the bottom of the dehydration tower is connected with the middle part of the rectifying tower through a pump.
3. The one-time integral production line of hexadecane diester as claimed in claim 2, which is characterized in that: 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 dodecyl ester finished product tank.
4. The one-time integral production line of hexadecane diester as claimed in claim 3, which is characterized in that: 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.
5. The one-time integral production line of hexadecane diester as claimed in claim 1, which is characterized in that: 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 first water washing tank through a first water washing pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021022843.9U CN212504666U (en) | 2020-06-07 | 2020-06-07 | Integral sixteen-carbon diester production line |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021022843.9U CN212504666U (en) | 2020-06-07 | 2020-06-07 | Integral sixteen-carbon diester production line |
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Cited By (3)
| 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 |
| CN114262469A (en) * | 2021-12-24 | 2022-04-01 | 华昌智典新材料(江苏)有限公司 | Preparation process for preparing film forming additive by using alcohol ester hexadecane |
| CN114989012A (en) * | 2021-06-30 | 2022-09-02 | 润泰新材料股份有限公司 | Continuous production process of butyl hexadecanoate |
-
2020
- 2020-06-07 CN CN202021022843.9U patent/CN212504666U/en active Active
Cited By (6)
| 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 |
| CN114989012A (en) * | 2021-06-30 | 2022-09-02 | 润泰新材料股份有限公司 | Continuous production process of butyl hexadecanoate |
| WO2023272949A1 (en) * | 2021-06-30 | 2023-01-05 | 润泰新材料股份有限公司 | Continuous production process for hexadecarbon diester |
| 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 |
| CN114989012B (en) * | 2021-06-30 | 2024-03-15 | 润泰新材料股份有限公司 | Continuous production process of hexadecyl butyl ester |
| CN114262469A (en) * | 2021-12-24 | 2022-04-01 | 华昌智典新材料(江苏)有限公司 | Preparation process for preparing film forming additive by using alcohol ester hexadecane |
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