CN203582766U - Device for preparing ethyl acetate - Google Patents
Device for preparing ethyl acetate Download PDFInfo
- Publication number
- CN203582766U CN203582766U CN201320460757.XU CN201320460757U CN203582766U CN 203582766 U CN203582766 U CN 203582766U CN 201320460757 U CN201320460757 U CN 201320460757U CN 203582766 U CN203582766 U CN 203582766U
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- CN
- China
- Prior art keywords
- reaction kettle
- esterification
- rectifying tower
- ethyl acetate
- packing layer
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Abstract
The utility model discloses a device for preparing ethyl acetate. The device for preparing ethyl acetate comprises an esterification reaction kettle, a feed port, a discharge port, a rectifying tower, a reboiler and a condenser, wherein a hopper for dropwise addition of a catalyst is arranged above the esterification reaction kettle, an annular distributor is arranged at the bottom of the esterification reaction kettle, a plurality aeration holes are formed in the annular distributor, and the bottom of the reaction kettle is connected to a limestone storage tank in series through a pipeline. When a valve on the pipeline at the lower end of the limestone storage tank is opened, limestone is conveyed to the bottom of the reaction kettle and is uniformly paved on the annular distributor through the holes in the annular distributor so as to ensure that moisture in esterification products is timely and effectively absorbed in a reaction process and further ensure that esterification reaction is carried out toward the generation direction of ethyl acetate, thus the yield of ethyl acetate is improved. The rectifying tower is simple in structure, scientific and reasonable in design, low in operating cost and relatively convenient to maintain and repair.
Description
Technical field
The utility model relates to chemical industry equipment field, particularly relates to a kind of device for the preparation of vinyl acetic monomer.
Background technology
Vinyl acetic monomer is that the hydroxyl in acetic acid is replaced by oxyethyl group and the compound that generates.Colourless transparent liquid, has fruit fragrant, volatile, to air-sensitive, can absorb water and divide, and moisture can make it slowly decompose and react acid.Can be used as the clean-out system of textile industry and the extraction agent of natural perfume, is also the important source material of pharmaceutical industry and organic synthesis.Water in reaction process can make vinyl acetic monomer hydrolysis, reduces the productive rate of speed of reaction and product.
Summary of the invention
The utility model, in order to overcome the deficiency of above-mentioned technical problem, provides a kind of device of preparing ethyl acetate, the water that this device produces in can sucking-off reaction process.
The technical scheme solving the problems of the technologies described above is as follows:
Device for the preparation of vinyl acetic monomer, comprise reaction kettle of the esterification, opening for feed, discharge port, rectifying tower, reboiler and condenser, above reaction kettle of the esterification, there is the funnel that drips catalyzer, in the bottom of reaction kettle of the esterification, be provided with a circle distributor, on circle distributor, be provided with some solarization air caps, the bottom of reactor is connected in series a Wingdale storage tank by a pipeline.
Further, on described Wingdale storage tank and the pipeline between reaction kettle of the esterification, be provided with valve.
Further, described rectifying tower is multilevel hierarchy rectifying tower.
Further, described rectifying tower comprises tower body, tower body top is provided with air outlet, the top that below, air outlet is provided with liquid distributor, liquid distributor is provided with phegma entrance, the first packing layer and the second packing layer, the below of packing layer is provided with air intake, and the bottom of described tower body is provided with liquid outlet.
Further, described liquid distributor equates with the cross-sectional area of the first packing layer and the second packing layer.
In the technical solution of the utility model, bottom at reaction kettle of the esterification is provided with circle distributor, on circle distributor, be provided with some holes, during valve on opening Wingdale storage tank lower channel, Wingdale can be imported into reactor bottom, Wingdale is layered on circle distributor uniformly by the hole on sparger, can guarantee, in reaction process, to absorb timely and effectively the moisture in esterification products.Thereby guaranteed that further esterification carries out to the direction that generates ethyl acetate, improved the productive rate of ethyl acetate.Rectifying tower structure is simple, and design science is reasonable, and running cost is low, and maintenance is more convenient.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Fig. 1 is the device schematic diagram of preparing vinyl acetic monomer;
Fig. 2 is the structural representation of rectifying tower in this device;
In figure: 1 is reaction kettle of the esterification, 2 is pipeline, and 3 is rectifying tower, 4 is reboiler, and 5 is condenser, and 6 is circle distributor, 7 is solarization air cap, and 8 is funnel, and 9 is storage tank, 11 is tower body, and 12 is air outlet, and 13 is liquid distributor, 14 is the first packing layer, 15 second packing layers, and 16 is air intake, 17 is liquid outlet, and 18 is phegma entrance.
Embodiment
The device of preparing vinyl acetic monomer, comprise reaction kettle of the esterification 1, opening for feed, discharge port, rectifying tower 3, reboiler 4 and condenser 5, above reaction kettle of the esterification 1, there is the funnel 8 that drips catalyzer, in the bottom of reaction kettle of the esterification, be provided with a circle distributor 6, on circle distributor, be provided with some solarization air caps 7, the bottom of reactor is by pipeline 2 serial connection one Wingdale storage tanks 9.On pipeline between Wingdale storage tank and reaction kettle of the esterification, be provided with valve.Rectifying tower 3 is multilevel hierarchy rectifying tower.Multilevel hierarchy rectifying tower comprises: tower body 11, tower body top is provided with air outlet 12, the top that below, air outlet is provided with liquid distributor 13, liquid distributor is provided with phegma entrance 18, the first packing layer 14 and the second packing layer 15, the below of packing layer is provided with air intake 16, and the bottom of described tower body is provided with liquid outlet 17.Liquid distributor 13 equates with the cross-sectional area of the first packing layer 14 and the second packing layer 15.
In the technical solution of the utility model, bottom at reaction kettle of the esterification is provided with circle distributor, on circle distributor, be provided with some holes, during valve on opening Wingdale storage tank lower channel, Wingdale can be imported into reactor bottom, Wingdale is layered on circle distributor uniformly by the hole on sparger, can guarantee, in reaction process, to absorb timely and effectively the moisture in esterification products.Thereby guaranteed that further esterification carries out to the direction that generates ethyl acetate, improved the productive rate of ethyl acetate.Rectifying tower structure is simple, and design science is reasonable, and running cost is low, and maintenance is more convenient.
Claims (5)
1. the device of preparing vinyl acetic monomer, comprise reaction kettle of the esterification (1), opening for feed, discharge port, rectifying tower (3), reboiler (4) and condenser (5), it is characterized in that, in the top of reaction kettle of the esterification (1), there is the funnel (8) that drips catalyzer, in the bottom of reaction kettle of the esterification, be provided with a circle distributor (6), on circle distributor, be provided with some solarization air caps (7), the bottom of reactor is by a pipeline (2) serial connection one Wingdale storage tank (9).
2. the device for the preparation of vinyl acetic monomer according to claim 1, is characterized in that, on described Wingdale storage tank and the pipeline between reaction kettle of the esterification, is provided with valve.
3. the device for the preparation of vinyl acetic monomer according to claim 1, is characterized in that, described rectifying tower (3) is multilevel hierarchy rectifying tower.
4. multilevel hierarchy rectifying tower according to claim 3 comprises: tower body (11), tower body top is provided with air outlet (12), the top that below, air outlet is provided with liquid distributor (13), liquid distributor is provided with phegma entrance (18), the first packing layer (14) and the second packing layer (15), the below of packing layer is provided with air intake (16), and the bottom of described tower body is provided with liquid outlet (17).
5. multilevel hierarchy rectifying tower according to claim 4, is characterized in that, described liquid distributor (13) equates with the cross-sectional area of the first packing layer (14) and the second packing layer (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320460757.XU CN203582766U (en) | 2013-07-30 | 2013-07-30 | Device for preparing ethyl acetate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320460757.XU CN203582766U (en) | 2013-07-30 | 2013-07-30 | Device for preparing ethyl acetate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203582766U true CN203582766U (en) | 2014-05-07 |
Family
ID=50580716
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320460757.XU Expired - Fee Related CN203582766U (en) | 2013-07-30 | 2013-07-30 | Device for preparing ethyl acetate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203582766U (en) |
-
2013
- 2013-07-30 CN CN201320460757.XU patent/CN203582766U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140507 Termination date: 20150730 |
|
| EXPY | Termination of patent right or utility model |