CN104437285A - Ethyl acetate reaction device - Google Patents
Ethyl acetate reaction device Download PDFInfo
- Publication number
- CN104437285A CN104437285A CN201410718599.2A CN201410718599A CN104437285A CN 104437285 A CN104437285 A CN 104437285A CN 201410718599 A CN201410718599 A CN 201410718599A CN 104437285 A CN104437285 A CN 104437285A
- Authority
- CN
- China
- Prior art keywords
- esterification reaction
- reaction tower
- acetic acid
- ethyl acetate
- heating tube
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J14/00—Chemical processes in general for reacting liquids with liquids; Apparatus specially adapted therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0006—Controlling or regulating processes
- B01J19/0013—Controlling the temperature of the process
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/24—Stationary reactors without moving elements inside
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C67/00—Preparation of carboxylic acid esters
- C07C67/08—Preparation of carboxylic acid esters by reacting carboxylic acids or symmetrical anhydrides with the hydroxy or O-metal group of organic compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00051—Controlling the temperature
- B01J2219/00121—Controlling the temperature by direct heating or cooling
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Abstract
The invention discloses an ethyl acetate reaction device. The ethyl acetate reaction device comprises an esterification reaction tower, wherein an acetic acid inlet and an alcohol and sulfuric acid inlet are formed in the top of the esterification reaction tower; pre-heaters are arranged on pipelines of the acetic acid inlet and the alcohol and sulfuric acid inlet, respectively, and the lower end of the esterification reaction tower is in the shape of an inverted cone; a heating tube is arranged in the esterification reaction tower and passes through the bottom end of the esterification reaction tower; uniform fine holes through which only gas can pass are formed in the part, passing through the bottom end of the esterification reaction tower, of the heating tube; a gas outlet is formed in the upper end of the esterification reaction tower. By virtue of the ethyl acetate reaction device, reactants are sufficiently mixed and heated for a second time to promote the reaction, so that the reaction efficiency is improved.
Description
Technical field
The present invention relates to field of chemical equipment, particularly a kind of acetic acid ethyl reaction device.
Background technology
Ethyl acetate is 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 cleaning agent of textile industry and the extractant of natural perfume material, is also the important source material of pharmaceuticals industry and organic synthesis.
Develop comparatively early with acetic acid and ethyl esterification ethyl acetate, technical maturity, and the method be main employing at present.React and carry out liquid phase esterification under acid catalyst (as sulfuric acid) exists.Because esterification is reversible reaction, for improving the productive rate of ester, excessive ethanol be adopted, make acetic acid complete reaction.For ensure reaction carry out smoothly, adopt esterification process prepare ethyl acetate process in, general need heating after react, make it to being beneficial to the reaction of ethyl acetate to movement.
Summary of the invention
For the shortcoming of prior art, the object of the present invention is to provide a kind of acetic acid ethyl reaction device, by the present invention, reactant fully mixed, and to reactant post bake, promote reaction carrying out, improve reaction efficiency.
For achieving the above object, the present invention is achieved by the following scheme:
A kind of acetic acid ethyl reaction device, comprise esterification reaction tower, described esterification top of tower is provided with acetic acid import and ethanol and sulfuric acid import, and the pipeline of described acetic acid import and ethanol and sulfuric acid import is respectively equipped with preheater, and described esterification reaction tower lower end is in an inverted cone; Be provided with heating tube in described esterification reaction tower, described heating tube is through esterification reaction tower bottom, and the described heating tube part through esterification reaction tower bottom is provided with uniform pore, and described pore can only pass through gas; Described esterification reaction tower upper end is provided with exhaust outlet.
Operation principle of the present invention: add raw material from acetic acid import and ethanol and sulfuric acid import respectively, flow into esterification reaction tower, because esterification reaction tower lower end is in an inverted cone, raw material can be made fully to contact after preheater preheats, increases conversion ratio.Owing to can run off entering into esterification reaction tower process heat at raw material, because now add steam toward heating tube, steam is distributed by pore, provides post bake, promotes the carrying out of reaction, improves reaction efficiency.After reaction, mixture is discharged from esterification tower bottom, is for further processing, and reacted waste gas discharges process by steam vent.
Beneficial effect of the present invention: by the present invention, makes reactant fully mix, and to reactant post bake, promote reaction carrying out, improve reaction efficiency.Improve the utilization rate of raw material, economize on resources.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
In figure: 1-esterification reaction tower; The import of 2-acetic acid; 3-ethanol and sulfuric acid import; 4-preheater I; 5 preheater II; 6-heating tube; 7-steam vent.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is further described, but protection scope of the present invention is not only confined to following examples.
Embodiment
The present embodiment comprises esterification reaction tower 1, described esterification reaction tower 1 top is provided with acetic acid import 2 and ethanol and sulfuric acid import 3, the pipeline of described acetic acid import 2 and ethanol and sulfuric acid import 3 is respectively equipped with preheater I4, preheater II5, described esterification reaction tower 1 lower end is in an inverted cone; Be provided with heating tube 6 in described esterification reaction tower 1, described heating tube 6 is through esterification reaction tower 1 bottom, and described heating tube 6 part through esterification reaction tower 1 bottom is provided with uniform pore, and described pore can only pass through gas; Described esterification reaction tower 1 upper end is provided with exhaust outlet 7.
The present embodiment operation principle: add raw material from acetic acid import 2 and ethanol and sulfuric acid import 3 respectively, esterification reaction tower 1 is flowed into respectively through after preheater I4, preheater II5 preheating, because esterification reaction tower 1 lower end is in an inverted cone, raw material can be made fully to contact, increase conversion ratio.Owing to can run off entering into esterification reaction tower 1 process heat at raw material, because now add steam toward heating tube 6, steam is distributed by pore, provides post bake, promotes the carrying out of reaction, improves reaction efficiency.After reaction, mixture is discharged bottom esterification reaction tower 1, is for further processing, and reacted waste gas discharges process by steam vent 7.
Claims (1)
1. an acetic acid ethyl reaction device, comprise esterification reaction tower (1), described esterification reaction tower (1) top is provided with acetic acid import (2) and ethanol and sulfuric acid import (3), the pipeline of described acetic acid import (2) and ethanol and sulfuric acid import (3) is respectively equipped with preheater I(4), preheater II(5), described esterification reaction tower (1) lower end is in an inverted cone; It is characterized in that: in described esterification reaction tower (1), be provided with heating tube (6), described heating tube (6) is through esterification reaction tower (1) bottom, the described part of the heating tube (6) through esterification reaction tower (1) bottom is provided with uniform pore, and described pore can only pass through gas; Described esterification reaction tower (1) upper end is provided with exhaust outlet (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410718599.2A CN104437285A (en) | 2014-11-30 | 2014-11-30 | Ethyl acetate reaction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410718599.2A CN104437285A (en) | 2014-11-30 | 2014-11-30 | Ethyl acetate reaction device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104437285A true CN104437285A (en) | 2015-03-25 |
Family
ID=52884497
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410718599.2A Pending CN104437285A (en) | 2014-11-30 | 2014-11-30 | Ethyl acetate reaction device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104437285A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5967244A (en) * | 1982-09-27 | 1984-04-16 | Nippon Kayaku Co Ltd | Preparation of ethyl acrylate |
| KR20030062253A (en) * | 2002-01-12 | 2003-07-23 | 사우디 베이식 인더스트리즈 코포레이션 | Stratified flow chemical reactor |
| CN1706793A (en) * | 2005-04-25 | 2005-12-14 | 上海吴泾化工有限公司 | Esterification reactor |
| CN103467285A (en) * | 2013-06-09 | 2013-12-25 | 百川化工(如皋)有限公司 | Method for reducing acidity of acetate |
| CN203459080U (en) * | 2013-09-22 | 2014-03-05 | 日照嘉宏生物科技有限公司 | Ethyl acetate reaction device |
| CN104086413A (en) * | 2014-07-17 | 2014-10-08 | 广西新天德能源有限公司 | Industrial acetic ether production device |
| CN104084108A (en) * | 2014-07-17 | 2014-10-08 | 广西新天德能源有限公司 | Esterification reaction tower |
-
2014
- 2014-11-30 CN CN201410718599.2A patent/CN104437285A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5967244A (en) * | 1982-09-27 | 1984-04-16 | Nippon Kayaku Co Ltd | Preparation of ethyl acrylate |
| KR20030062253A (en) * | 2002-01-12 | 2003-07-23 | 사우디 베이식 인더스트리즈 코포레이션 | Stratified flow chemical reactor |
| CN1706793A (en) * | 2005-04-25 | 2005-12-14 | 上海吴泾化工有限公司 | Esterification reactor |
| CN103467285A (en) * | 2013-06-09 | 2013-12-25 | 百川化工(如皋)有限公司 | Method for reducing acidity of acetate |
| CN203459080U (en) * | 2013-09-22 | 2014-03-05 | 日照嘉宏生物科技有限公司 | Ethyl acetate reaction device |
| CN104086413A (en) * | 2014-07-17 | 2014-10-08 | 广西新天德能源有限公司 | Industrial acetic ether production device |
| CN104084108A (en) * | 2014-07-17 | 2014-10-08 | 广西新天德能源有限公司 | Esterification reaction tower |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150325 |