CN204079838U - A kind of transesterification reaction device - Google Patents
A kind of transesterification reaction device Download PDFInfo
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- CN204079838U CN204079838U CN201420521015.8U CN201420521015U CN204079838U CN 204079838 U CN204079838 U CN 204079838U CN 201420521015 U CN201420521015 U CN 201420521015U CN 204079838 U CN204079838 U CN 204079838U
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Abstract
The utility model discloses a kind of transesterification reaction device, this device comprises: reactor, rectifying tower, condenser, azeotrope storage tank, entrainer storage tank; Described reactor is communicated with by pipeline with rectifying tower, and described condenser is communicated with rectifying tower top by pipeline; Described entrainer storage tank is connected with the top of rectifying tower, middle part, bottom respectively by feed-pipe, rectifier bottoms feed-pipe in the middle part of rectifying tower top feed-pipe, rectifying tower.Technical solutions of the utility model overcome the by-product alcohol existed in existing transesterification reaction production process and shift out not in time, it is slow that by-product alcohol shifts out speed, reaction conversion ratio is not high, the shortcoming that reaction times is longer, achieves simply effectively, improves reaction conversion ratio, Reaction time shorten, energy efficient, cuts down the consumption of raw materials.
Description
Technical field
The utility model relates to the reaction unit in a kind of organic chemical industry's production technical field, is specifically related to a kind of transesterification reaction device.
Background technology
Normally a kind of ester of ester-exchange reaction and a kind of alcohol, carry out transesterification reaction under the effect of catalyzer, the another kind of ester needed for generation and low-boiling by-products alcohol.Because Exchange Ester Process is reversible, the formation speed of reaction product is determined by the speed that shifts out of by-product alcohol to a great extent.At present, for obtaining higher reaction conversion ratio in industrial production, the reaction unit of the combination of reaction and rectifying or reactive distillation coupling is adopted to carry out transesterification reaction, by adding entrainer, the by-product alcohol that entrainer generates with reaction forms azeotrope, is then shifted out by azeotrope in rectifier unit.But in process of production, be subject to the restriction that in rectifying phegma, low-boiling by-products alcohol content is higher, rectifying reflux ratio is larger, by-product alcohol can not shift out reaction unit in time, fast, causes that reaction conversion ratio is not high, the reaction times is longer, the consumption of raw material and energy is all larger.
Utility model content
Technical problem to be solved in the utility model is: shift out not in time for the by-product alcohol existed in existing transesterification reaction production process, it is slow that by-product alcohol shifts out speed, reaction conversion ratio is not high, the deficiency that reaction times is longer, provide a kind of simple effectively, reaction conversion ratio, Reaction time shorten, energy efficient, the transesterification reaction device of cutting down the consumption of raw materials can be improved.
For solving the problems of the technologies described above, the technical solution of the utility model is: a kind of transesterification reaction device, this device comprises: reactor, rectifying tower, condenser, entrainer storage tank, the feed-pipe in the middle part of the feed-pipe at rectifying tower top, rectifying tower and the feed-pipe of rectifier bottoms;
Described reactor is communicated with by pipeline with rectifying tower; The top of described rectifying tower is communicated with by pipeline with condenser; Described entrainer storage tank is connected with the top of rectifying tower, middle part, bottom respectively by the feed-pipe of the feed-pipe in the middle part of the feed-pipe at rectifying tower top, rectifying tower, rectifier bottoms.
As preferably, described transesterification reaction device also comprises azeotrope storage tank, and azeotrope storage tank is communicated with by pipeline with described condenser.
As preferably, described transesterification reaction device also comprises extraction tower, and extraction tower is communicated with by pipeline with described azeotrope storage tank.
As preferably, described transesterification reaction device also comprises moisture eliminator, and moisture eliminator is communicated with described extraction tower top by pipeline.
As preferably, described moisture eliminator is communicated with by pipeline with described entrainer storage tank.
Described pipeline is provided with under meter and by-pass valve control.
Described transesterification reaction device is used for the transesterification reaction best results of acrylate.
Technique effect of the present utility model is as follows: this transesterification reaction device, its rectifying tower top is communicated with condenser pipeline, condenser is directly communicated with azeotrope storage tank pipeline, azeotrope storage tank is directly communicated with extraction tower pipeline, this design makes the azeotrope at rectifying tower top after condensation, all enter in extraction tower, azeotrope does not reflux and enters rectifying tower.In actual use, the by-product alcohol that entrainer and transesterification reaction generate forms azeotrope, and azeotrope all shifts out rectifying tower after condensation, and not refluxing enters rectifying tower, and the by product that transesterification reaction is generated can shift out timely.
Extraction tower top is communicated with moisture eliminator pipeline, moisture eliminator is communicated with entrainer storage tank pipeline, entrainer storage tank respectively with in the middle part of rectifying tower top, rectifying tower, rectifier bottoms pipeline is communicated with, this design makes entrainer after reclaiming, can according to the accumulation situation of by-product alcohol in rectifying tower, join the different sites of rectifying tower respectively, that accelerates by-product alcohol shifts out speed.In actual use, after azeotrope enters extraction tower from azeotrope storage tank, being separated of entrainer and by-product alcohol is achieved through extracting and separating, by-product alcohol is discharged bottom extraction tower, entrainer enters moisture eliminator drying and obtains recovery entrainer through extraction tower top, reclaim entrainer and enter entrainer storage tank by pipeline, recovery entrainer in entrainer storage tank is by rectifying tower top feed-pipe, feed-pipe in the middle part of rectifying tower, rectifier bottoms feed-pipe enters each position of rectifying tower respectively, make it possible to the accumulation situation according to by-product alcohol in rectifying tower, the reinforced position of adjustment entrainer, that accelerates by-product alcohol shifts out speed.
Accompanying drawing explanation
Fig. 1 is schematic diagram of the present utility model.
1. reactors, 2. rectifying tower, 3. condenser in figure, 4. azeotrope storage tank, 5. extraction tower, 6. moisture eliminator, 7. entrainer storage tank, the 8. feed-pipe at rectifying tower top, the feed-pipe 9. in the middle part of rectifying tower, the 10. feed-pipe of rectifier bottoms.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described.
As shown in Figure 1, described transesterification reaction device, comprise reactor 1, described reactor 1 is communicated with by pipeline with rectifying tower 2, condenser 3 is communicated with by pipeline is supporting with rectifying tower 2 top, condenser 3 is communicated with by pipeline with azeotrope storage tank 4, azeotrope storage tank 4 is communicated with by pipeline with extraction tower 5, moisture eliminator 6 is communicated with extraction tower 5 top by pipeline, moisture eliminator 6 is communicated with by pipeline with entrainer storage tank 7, entrainer storage tank 7 is by the feed-pipe 8 at rectifying tower top, feed-pipe 9 in the middle part of rectifying tower, the feed-pipe 10 of rectifier bottoms respectively with the top of entrainer storage tank 7, middle part is communicated with bottom, described pipeline is provided with under meter and by-pass valve control.
Transesterification reaction device principle of work: when carrying out transesterification reaction, first reaction raw materials carries out transesterification reaction in reactor 1, the by-product alcohol that reaction generates forms azeotrope with entrainer in rectifying tower 2, azeotrope enters azeotrope storage tank 4 after condenser 3 condensation, azeotrope in azeotropic liquid storage tank 4 directly enters in extraction tower 5 again, azeotrope does not reflux and enters rectifying tower 2, the by product that transesterification reaction is generated can shift out timely, azeotrope in extraction tower 5 realizes being separated of entrainer and by-product alcohol through extracting and separating, by-product alcohol is discharged bottom extraction tower 5, entrainer enters moisture eliminator 6 drying and obtains recovery entrainer through extraction tower 5 top, reclaim entrainer and enter entrainer storage tank 7 by pipeline, entrainer in entrainer storage tank 7 is by the feed-pipe 8 at rectifying tower top, feed-pipe 9 in the middle part of rectifying tower, the feed-pipe 10 of rectifier bottoms enters the top of rectifying tower 2 respectively, middle part and bottom, can according to the accumulation situation of by-product alcohol in rectifying tower 2 in reaction process, the reinforced position of adjustment entrainer, that accelerates by-product alcohol shifts out speed.
The above, be only preferred implementation of the present utility model.It should be pointed out that for a person skilled in the art, the utility model same according to the utility model creates principle, can also make many distortion and improvement, but these all falls into protection domain of the present utility model.
Claims (6)
1. a transesterification reaction device, this device comprises: reactor (1), rectifying tower (2), condenser (3), azeotrope storage tank (4) and entrainer storage tank (7);
Described reactor (1) is communicated with by pipeline with rectifying tower (2), and described condenser (3) is communicated with by the top of pipeline with rectifying tower (2);
Described entrainer storage tank (7) is connected with rectifying tower (2) respectively by the feed-pipe (10) of the feed-pipe (9) in the middle part of the feed-pipe (8) at rectifying tower top, rectifying tower, rectifier bottoms.
2. a kind of transesterification reaction device according to claim 1, it is characterized in that: described transesterification reaction device also comprises azeotrope storage tank (4), azeotrope storage tank (4) is communicated with by pipeline with described condenser (3).
3. a kind of transesterification reaction device according to claim 2, is characterized in that: described transesterification reaction device also comprises extraction tower (5), extraction tower (5) is communicated with by pipeline with described azeotrope storage tank (4).
4. a kind of transesterification reaction device according to claim 3, it is characterized in that: described transesterification reaction device also comprises moisture eliminator (6), moisture eliminator (6) is communicated with described extraction tower (5) top by pipeline.
5. a kind of transesterification reaction device according to claim 4, is characterized in that: described moisture eliminator (6) is communicated with by pipeline with described entrainer storage tank (7).
6. a kind of transesterification reaction device according to any one of claim 1 to 5, is characterized in that: described pipeline is provided with under meter and by-pass valve control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420521015.8U CN204079838U (en) | 2014-01-22 | 2014-09-11 | A kind of transesterification reaction device |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410027644.XA CN103772084A (en) | 2014-01-22 | 2014-01-22 | Ester-exchange reaction device |
| CN201410027644.X | 2014-01-22 | ||
| CN201420521015.8U CN204079838U (en) | 2014-01-22 | 2014-09-11 | A kind of transesterification reaction device |
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| Publication Number | Publication Date |
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| CN204079838U true CN204079838U (en) | 2015-01-07 |
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Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410027644.XA Pending CN103772084A (en) | 2014-01-22 | 2014-01-22 | Ester-exchange reaction device |
| CN201420521015.8U Active CN204079838U (en) | 2014-01-22 | 2014-09-11 | A kind of transesterification reaction device |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410027644.XA Pending CN103772084A (en) | 2014-01-22 | 2014-01-22 | Ester-exchange reaction device |
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| CN (2) | CN103772084A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111943872A (en) * | 2019-05-17 | 2020-11-17 | 北京芯友工程技术有限公司 | Continuous process and device for synthesizing high-ester exchange rate sodium bis (hydroxyethyl) isophthalate-5-sulfonate through catalytic reaction rectification |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108084095B (en) * | 2017-12-21 | 2023-09-19 | 黄冈师范学院 | Metronidazole synthesis device and Metronidazole synthesis method using same |
| CN112791680A (en) * | 2020-12-24 | 2021-05-14 | 华阳新材料科技集团有限公司 | A nickel phosphorus complex synthesis system for adiponitrile production |
-
2014
- 2014-01-22 CN CN201410027644.XA patent/CN103772084A/en active Pending
- 2014-09-11 CN CN201420521015.8U patent/CN204079838U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111943872A (en) * | 2019-05-17 | 2020-11-17 | 北京芯友工程技术有限公司 | Continuous process and device for synthesizing high-ester exchange rate sodium bis (hydroxyethyl) isophthalate-5-sulfonate through catalytic reaction rectification |
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| Publication number | Publication date |
|---|---|
| CN103772084A (en) | 2014-05-07 |
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