CN201988374U - Tower type esterification apparatus for synthesizing linalyl acetate - Google Patents
Tower type esterification apparatus for synthesizing linalyl acetate Download PDFInfo
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- CN201988374U CN201988374U CN201120058390XU CN201120058390U CN201988374U CN 201988374 U CN201988374 U CN 201988374U CN 201120058390X U CN201120058390X U CN 201120058390XU CN 201120058390 U CN201120058390 U CN 201120058390U CN 201988374 U CN201988374 U CN 201988374U
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Abstract
The utility model relates to a tower type esterification apparatus for synthesizing linalyl acetate. The top of a horizontal tower kettle is connected with the bottom of a tower body, the top of the tower body is connected with the bottom of a top condenser, the top outlet of the top condenser is connected with the top inlet of a vacuum buffer, the top outlet of the vacuum buffer is connected with the inlet of an ejector vacuum pump, a reflux distributor is arranged in the top part of the tower body, the outlet of the reflux distributor is connected with the inlet of a pneumatic three-way regulating valve, the outlets of the pneumatic three-way regulating valve are respectively connected with the inlet of a balancing cooler and the reflux inlet of the top of the tower body, and the outlet of the balancing cooler is respectively connected with the inlet of an acetic acid storage tank and the inlet of a reclaimed acetic anhydride storage tank. The apparatus can continuously separate the coproduct (acetic acid) produced in the process of esterification from a reaction system and reduce the side reaction of esterification, thus increasing the product yield and improving the quality of products.
Description
Technical field
The utility model relates to a kind of reaction unit that bergamio is used for preparing, particularly a kind of tower esterification device that is used for linalool and acetic anhydride synthesis of acetic acid virtue camphor tree ester.
Background technology
At present, traditional esterification device by linalool and acetic anhydride synthesis of acetic acid virtue camphor tree ester is the continuous stir reactor formula reactor that adopts the band agitating device, reactor by a band agitating device independently constitutes, and by drop into linalool, acetic anhydride and catalyst in reactor, the heating stirring reaction is finished.But because linalool is the allylic tertiary alcohol, adopt traditional continuous stir reactor formula reactor, the product that raw material that reaction drops into and reaction generate, accessory substance all is to be mixed in mixed agitating heating in the still entirely in esterification reaction process, the device that the by-product acetic acid that produces in the esterification reaction process is continuously separated from reaction system not, linalool is easy to because cyclodehydration too much takes place by-product acetic acid, side reactions such as isomerization, general ester yield is not high, the yield that obtains bergamio is generally 60～85%, cause byproduct more, the aftertreatment technology complexity, product fragrance is bad.
The utility model content
The purpose of this utility model provides a kind of tower esterification device of synthesis of acetic acid virtue camphor tree ester, solves above-mentioned employing legacy equipment and causes the problem that the ester yield is not high, byproduct is more, product fragrance is bad.
The utility model is achieved through the following technical solutions above-mentioned purpose: a kind of tower esterification device of synthesis of acetic acid virtue camphor tree ester, comprise horizontal tower still, body of the tower, overhead condenser, reflux splitter, the Pneumatic three-way control valve, the vacuum buffer device, ejector vacuum pump, the balance cooler, reclaim the acetate storage tank and reclaim the acetic anhydride storage tank, described horizontal tower still is built-in with nitrogen bubble pipe and heat(ing) coil, the top of horizontal tower still has the linalool charging aperture, the acetic anhydride charging aperture, catalyst feeds, the bottom has thick ester discharging opening, the built-in stainless steel ripple of described body of the tower filler, the built-in reflux splitter in top, the top of described horizontal tower still links to each other with the body of the tower bottom, the body of the tower top links to each other with the overhead condenser bottom, the overhead condenser top exit links to each other with vacuum buffer device top inlet, vacuum buffer device top exit links to each other with the ejector vacuum pump import, the built-in reflux splitter in body of the tower top, the reflux splitter outlet links to each other with the import of Pneumatic three-way control valve, Pneumatic three-way control valve outlet respectively with the balance cooler inlet, the backflow import of body of the tower top links to each other, the balance cooler outlet respectively with reclaim the import of acetate storage tank, reclaiming the import of acetic anhydride storage tank links to each other.
The use principle and the process of this device are as follows: with linalool, acetic anhydride, catalyst adds horizontal tower still, logical nitrogen bubble, starting ejector vacuum pump keeps being in the certain vacuum condition in the tower, open the temperature reaction of tower still heat(ing) coil, fractionation by the built-in stainless steel ripple filler of body of the tower is continuously separated the by-product acetic acid that generates in the course of reaction with the raw acetic acid acid anhydride, by-product acetic acid through the overhead condenser condensation after reflux splitter, the Pneumatic three-way control valve is discharged, after the cooling of overbalance cooler, enter again and reclaim the acetate storage tank, the raw acetic acid acid anhydride then constantly is back to horizontal tower still and proceeds esterification after the overhead condenser condensation, to remain the intact acetic anhydride distillation of unreacted after esterification finishes and enter recovery acetic anhydride storage tank, what obtain in the horizontal tower still is exactly the thick ester of product bergamio of esterification gained.
Compared with prior art, the utlity model has following advantage:
1, the by-product acetic acid that produces in the esterification reaction process continuously can be separated from reaction system, the shortcoming of having avoided traditional continuous stir reactor formula reactor by-product acetic acid can't be separated, reduce the side reaction of esterification, improve product yield, the bergamio yield reaches more than 95%, improved product quality simultaneously, made product fragrance better.
2, cancelled the agitating device of esterification column still, utilize nitrogen bubble to impel reactant liquor to mix, so the equipment of esterification column still has been simple, good seal, easy and simple to handle, noise, energy consumption reduce.
Description of drawings
Fig. 1 is the structural representation of the tower esterification device of synthesis of acetic acid virtue camphor tree ester described in the utility model.
The specific embodiment
Below by drawings and Examples the technical solution of the utility model is further described.
As shown in Figure 1, the tower esterification device of synthesis of acetic acid virtue camphor tree ester described in the utility model is connected and composed by horizontal tower still 1, body of the tower 2, overhead condenser 3, vacuum buffer device 4, ejector vacuum pump 5, balance cooler 6, recovery acetate storage tank 7, recovery acetic anhydride storage tank 8, nitrogen bubble pipe 9, heat(ing) coil 10, reflux splitter 11, Pneumatic three-way control valve 12, thick ester discharging opening 13, linalool charging aperture 14, acetic anhydride charging aperture 15, catalyst feeds 16 and stainless steel ripple filler 17.
Its concrete structure with connected mode is: horizontal tower still 1 top links to each other with body of the tower 2 bottoms, body of the tower 2 tops link to each other with overhead condenser 3 bottoms, overhead condenser 3 top exits link to each other with vacuum buffer device 4 top inlet, vacuum buffer device 4 top exits link to each other with ejector vacuum pump 5 imports, the built-in reflux splitter 11 in body of the tower 2 tops, reflux splitter 11 outlets link to each other with 12 imports of Pneumatic three-way control valve, Pneumatic three-way control valve 12 outlet respectively with 6 imports of balance cooler, body of the tower 2 top backflow imports link to each other, 6 outlets of balance cooler respectively with reclaim 7 imports of acetate storage tank, reclaiming 8 imports of acetic anhydride storage tank links to each other.
Described horizontal tower still 1 built-in nitrogen bubble pipe 9 and heat(ing) coil 10, the top of horizontal tower still 1 has linalool charging aperture 14, acetic anhydride charging aperture 15, catalyst feeds 16, and the bottom has thick ester discharging opening 13.
Described body of the tower 2 built-in stainless steel ripple filler 17 and reflux splitters 11.
Its course of work is: when carrying out esterification, linalool is added horizontal tower still 1 by linalool charging aperture 14, acetic anhydride adds horizontal tower still 1 by acetic anhydride charging aperture 15, catalyst adds horizontal tower still 1 by catalyst feeds 16, by nitrogen bubble pipe 9 logical nitrogen bubbles, starting ejector vacuum pump 5 keeps being in the certain vacuum condition in the tower by vacuum buffer device 4, open 10 temperature reactions of tower still heat(ing) coil, fractionation by the built-in stainless steel ripple filler 17 of body of the tower 2 is continuously separated the by-product acetic acid that generates in the course of reaction with the raw acetic acid acid anhydride, by-product acetic acid through overhead condenser 3 condensations after reflux splitter 11, Pneumatic three-way control valve 12 is discharged, after 6 coolings of overbalance cooler, enter again and reclaim acetate storage tank 7, the raw acetic acid acid anhydride then constantly is back to horizontal tower still 1 and proceeds esterification after overhead condenser 3 condensations, to remain the intact acetic anhydride distillation of unreacted after esterification finishes and enter recovery acetic anhydride storage tank 8, what obtain in the horizontal tower still 1 is exactly the thick ester of product bergamio of esterification gained, and the thick ester of bergamio is discharged through thick ester discharging opening 13.
Claims (1)
1. the tower esterification device of synthesis of acetic acid virtue camphor tree ester, comprise horizontal tower still, body of the tower, overhead condenser, reflux splitter, the Pneumatic three-way control valve, the vacuum buffer device, ejector vacuum pump, the balance cooler, reclaim the acetate storage tank and reclaim the acetic anhydride storage tank, it is characterized in that: described horizontal tower still is built-in with nitrogen bubble pipe and heat(ing) coil, the top of horizontal tower still has the linalool charging aperture, the acetic anhydride charging aperture, catalyst feeds, the bottom has thick ester discharging opening, the built-in stainless steel ripple of described body of the tower filler, the built-in reflux splitter in top, the top of described horizontal tower still links to each other with the body of the tower bottom, the body of the tower top links to each other with the overhead condenser bottom, the overhead condenser top exit links to each other with vacuum buffer device top inlet, vacuum buffer device top exit links to each other with the ejector vacuum pump import, the built-in reflux splitter in body of the tower top, the reflux splitter outlet links to each other with the import of Pneumatic three-way control valve, Pneumatic three-way control valve outlet respectively with the balance cooler inlet, the backflow import of body of the tower top links to each other, the balance cooler outlet respectively with reclaim the import of acetate storage tank, reclaiming the import of acetic anhydride storage tank links to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120058390XU CN201988374U (en) | 2011-03-08 | 2011-03-08 | Tower type esterification apparatus for synthesizing linalyl acetate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120058390XU CN201988374U (en) | 2011-03-08 | 2011-03-08 | Tower type esterification apparatus for synthesizing linalyl acetate |
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| CN201988374U true CN201988374U (en) | 2011-09-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201120058390XU Expired - Fee Related CN201988374U (en) | 2011-03-08 | 2011-03-08 | Tower type esterification apparatus for synthesizing linalyl acetate |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104987291A (en) * | 2015-08-06 | 2015-10-21 | 江西创赢香精香料科技协同创新有限公司 | Method for synthetizing nopyl acetate |
| CN111018703A (en) * | 2019-12-16 | 2020-04-17 | 上海浦杰香料有限公司 | Preparation method and production process system of menthyl acetate |
| CN115837260A (en) * | 2023-02-23 | 2023-03-24 | 大庆华理生物技术股份有限公司 | Oleic acid amidation deaminizing recovery device |
| CN115999456A (en) * | 2022-12-08 | 2023-04-25 | 万华化学集团股份有限公司 | Reactive distillation equipment for continuously producing linalyl acetate and method for continuously producing linalyl acetate |
-
2011
- 2011-03-08 CN CN201120058390XU patent/CN201988374U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104987291A (en) * | 2015-08-06 | 2015-10-21 | 江西创赢香精香料科技协同创新有限公司 | Method for synthetizing nopyl acetate |
| CN111018703A (en) * | 2019-12-16 | 2020-04-17 | 上海浦杰香料有限公司 | Preparation method and production process system of menthyl acetate |
| CN111018703B (en) * | 2019-12-16 | 2024-09-13 | 浦杰香料(上海)有限公司 | Preparation method and production process system of menthyl acetate |
| CN115999456A (en) * | 2022-12-08 | 2023-04-25 | 万华化学集团股份有限公司 | Reactive distillation equipment for continuously producing linalyl acetate and method for continuously producing linalyl acetate |
| CN115837260A (en) * | 2023-02-23 | 2023-03-24 | 大庆华理生物技术股份有限公司 | Oleic acid amidation deaminizing recovery device |
| CN115837260B (en) * | 2023-02-23 | 2023-05-30 | 大庆华理生物技术股份有限公司 | Oleic acid amidation deamination recovery device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Wuzhou Songhua Aromatic Chemicals Co., Ltd. Assignor: Wuzhou Pine Chemicals Ltd. Contract record no.: 2012450000032 Denomination of utility model: Tower type esterification apparatus for synthesizing linalyl acetate Granted publication date: 20110928 License type: Exclusive License Record date: 20120613 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110928 Termination date: 20150308 |
|
| EXPY | Termination of patent right or utility model |