CN219424408U - Continuous esterification equipment of ethyl acetate - Google Patents
Continuous esterification equipment of ethyl acetate Download PDFInfo
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- CN219424408U CN219424408U CN202320117676.3U CN202320117676U CN219424408U CN 219424408 U CN219424408 U CN 219424408U CN 202320117676 U CN202320117676 U CN 202320117676U CN 219424408 U CN219424408 U CN 219424408U
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- esterification
- ethyl acetate
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- continuous
- thin plate
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
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Abstract
The utility model discloses the field of ethyl acetate processing, and in particular relates to ethyl acetate continuous esterification equipment. The continuous esterification equipment for ethyl acetate comprises a mixer, an esterification tower, an esterification condenser and an esterification phase separator which are sequentially connected with a pipe fitting through pipelines, wherein an esterification reboiler is arranged on the esterification tower, a distributor is arranged at the bottom in the esterification tower, the esterification condenser comprises a thin plate unit which is detachably arranged, holes are uniformly distributed on the thin plate unit, and protrusions are arrayed on the thin plate unit. The utility model has high rectification efficiency.
Description
Technical Field
The utility model relates to the technical field of ethyl acetate processing, in particular to ethyl acetate continuous esterification equipment.
Background
Ethyl acetate is an important organic chemical product, and is generally prepared by heating ethanol and acetic acid in an esterification kettle according to a certain feeding proportion with concentrated sulfuric acid as a catalyst to perform esterification reaction to form an esterification product ethyl acetate. The production process route is that single-strand feeding, acetic acid and ethanol enter a reaction kettle to carry out esterification reaction under the action of sulfuric acid, and in the reaction process, ethyl acetate, ethanol, water and a small amount of acetic acid and sulfuric acid enter an esterification tower to be distilled, separated and refined to obtain a final product.
It should also be noted that this mainstream ethyl acetate production process suffers from the following problems: the traditional condensation effect is poor, distillation refinement efficiency is low, and the inventor proposes improvement.
Disclosure of Invention
The utility model aims to provide ethyl acetate continuous esterification equipment with high rectification efficiency.
In order to achieve the aim of the utility model, the utility model discloses ethyl acetate continuous esterification equipment which adopts the following technical scheme:
the utility model provides an ethyl acetate continuous esterification equipment, includes the blender, esterifying tower, esterifying condenser and the phase separator that pass through pipeline and pipe fitting sequence connection, is provided with the reboiler of esterifying on the esterifying tower, and the bottom in the esterifying tower is provided with the distributor, and the esterifying condenser includes a detachable sheet unit of installation, and the equipartition has the hole on this sheet unit, and the array has the arch on the sheet unit. In the process of producing ethyl acetate by an esterification method, ethyl acetate produced by the reaction of acetic acid and ethanol in an esterification kettle carries water and part of raw material ethanol which are simultaneously produced, the ethyl acetate rises to the top of an esterification tower in the form of ternary azeotrope, mixed liquid is layered by a phase separator after being condensed by a thin plate unit, a water phase with higher density is obtained at the lower layer, an ethyl acetate phase with lower density is obtained at the upper layer, the obtained ester phase is a crude ester semi-finished product, part of the crude ester semi-finished product is sent to a post process for rectification to obtain finished ethyl acetate, the other part of the crude ester semi-finished product is required to be sent to the top of the esterification tower for reflux, and lower water is sent to a wastewater recovery system.
The utility model relates to a further improvement of ethyl acetate continuous esterification equipment, which is characterized in that the lower end of an esterification tower is provided with a multi-element azeotrope gas phase port for esterification products.
The utility model relates to a further improvement of ethyl acetate continuous esterification equipment, which is characterized in that fiber materials filled in an esterification phase separator are sheet-shaped sections woven and formed by corrosion-resistant glass fibers or polymer synthetic fibers.
The utility model relates to a further improvement of ethyl acetate continuous esterification equipment, which is characterized in that a plurality of regular plate corrugated fillers are arranged in an esterification tower.
The utility model relates to a further improvement of ethyl acetate continuous esterification equipment, which is characterized in that the material of a structured plate corrugated filler is polypropylene.
Compared with the prior art, the utility model has the beneficial effects that:
in the process of producing ethyl acetate by an esterification method, ethyl acetate produced by the reaction of acetic acid and ethanol in an esterification kettle carries water and part of raw material ethanol which are simultaneously produced, the ethyl acetate rises to the top of an esterification tower in the form of ternary azeotrope, mixed liquid is layered by a phase separator after being condensed by a thin plate unit, a water phase with higher density is obtained at the lower layer, an ethyl acetate phase with lower density is obtained at the upper layer, the obtained ester phase is a crude ester semi-finished product, part of the crude ester semi-finished product is sent to a post process for rectification to obtain finished ethyl acetate, the other part of the crude ester semi-finished product is required to be sent to the top of the esterification tower for reflux, and lower water is sent to a wastewater recovery system.
Drawings
FIG. 1 is a schematic illustration of the present utility model;
fig. 2 is a schematic view of a sheet unit.
Wherein, 1 blender, 2 esterifying tower, 3 esterifying condenser, 4 esterifying phase separator, 5 esterifying reboiler, 6 distributor, 31 sheet unit, 32 protrusion.
Detailed Description
The present utility model is further illustrated below in conjunction with the specific embodiments, it being understood that these embodiments are meant to be illustrative of the utility model only and not limiting the scope of the utility model, and that modifications of the utility model, which are equivalent to those skilled in the art to which the utility model pertains, will fall within the scope of the utility model as defined in the claims appended hereto.
As shown in fig. 1-2, the continuous esterification equipment for ethyl acetate comprises a mixer 1, an esterification tower 2, an esterification condenser 3 and an esterification phase splitter 4 which are sequentially connected with a pipe through pipelines, wherein an esterification reboiler 5 is arranged on the esterification tower 2, a distributor 6 is arranged at the bottom in the esterification tower 2, the esterification condenser comprises a thin plate unit 31 which is detachably arranged, holes are uniformly distributed on the thin plate unit 31, and protrusions 32 are arrayed on the thin plate unit 31. In the process for producing ethyl acetate by an esterification method, ethyl acetate produced by the reaction of acetic acid and ethanol in an esterification kettle carries water and part of raw material ethanol which are simultaneously produced, the ethyl acetate rises to the top of an esterification tower 2 in the form of ternary azeotrope, mixed liquid is layered by a phase separator after being condensed by a thin plate unit 31, a water phase with higher density is obtained at the lower layer, an ethyl acetate phase with lower density is obtained at the upper layer, the obtained ester phase is a crude ester semi-finished product, part of the crude ester semi-finished product is sent to a post-process for rectification to obtain finished ethyl acetate, the other part of the crude ester semi-finished product is required to be sent to the top of the esterification tower 2 for backflow, and lower water is sent to a wastewater recovery system.
Specifically, the lower end of the esterification tower 2 is provided with a multi-element azeotrope gas phase port for esterification products.
Specifically, the fiber material filled in the esterification phase separator 4 is a sheet-shaped section bar woven and formed by corrosion-resistant glass fiber or polymer synthetic fiber.
Specifically, a plurality of regular plate ripple fillers are arranged in the esterification tower 2.
Specifically, the material of the structured plate corrugated filler is polypropylene.
Claims (5)
1. An ethyl acetate continuous esterification device is characterized in that: the esterification device comprises a mixer, an esterification tower, an esterification condenser and an esterification phase separator which are sequentially connected with a pipe through pipelines, wherein an esterification reboiler is arranged on the esterification tower, a distributor is arranged at the bottom in the esterification tower, the esterification condenser comprises a thin plate unit which is detachably arranged, holes are uniformly distributed on the thin plate unit, and protrusions are arrayed on the thin plate unit.
2. The continuous esterification apparatus for ethyl acetate according to claim 1, wherein: the lower end of the esterification tower is provided with a multi-element azeotrope gas phase port for esterification products.
3. The continuous esterification apparatus for ethyl acetate according to claim 1, wherein: the fiber material filled in the esterification phase separator is a sheet-shaped section bar woven and formed by corrosion-resistant glass fiber or polymer synthetic fiber.
4. The continuous esterification apparatus for ethyl acetate according to claim 1, wherein: a plurality of regular plate corrugated fillers are arranged in the esterification tower.
5. The continuous esterification apparatus for ethyl acetate according to claim 4, wherein: the regular plate corrugated filler is made of polypropylene.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320117676.3U CN219424408U (en) | 2023-01-12 | 2023-01-12 | Continuous esterification equipment of ethyl acetate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320117676.3U CN219424408U (en) | 2023-01-12 | 2023-01-12 | Continuous esterification equipment of ethyl acetate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219424408U true CN219424408U (en) | 2023-07-28 |
Family
ID=87338210
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320117676.3U Active CN219424408U (en) | 2023-01-12 | 2023-01-12 | Continuous esterification equipment of ethyl acetate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219424408U (en) |
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2023
- 2023-01-12 CN CN202320117676.3U patent/CN219424408U/en active Active
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