CN104086413A - Industrial acetic ether production device - Google Patents

Industrial acetic ether production device Download PDF

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Publication number
CN104086413A
CN104086413A CN201410340885.XA CN201410340885A CN104086413A CN 104086413 A CN104086413 A CN 104086413A CN 201410340885 A CN201410340885 A CN 201410340885A CN 104086413 A CN104086413 A CN 104086413A
Authority
CN
China
Prior art keywords
raw
tank
condenser
heating tube
vinyl acetic
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
Application number
CN201410340885.XA
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Chinese (zh)
Inventor
冯英
徐大鹏
李同
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GUANGXI XINTIANDE ENERGY CO Ltd
Original Assignee
GUANGXI XINTIANDE ENERGY CO Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by GUANGXI XINTIANDE ENERGY CO Ltd filed Critical GUANGXI XINTIANDE ENERGY CO Ltd
Priority to CN201410340885.XA priority Critical patent/CN104086413A/en
Publication of CN104086413A publication Critical patent/CN104086413A/en
Pending legal-status Critical Current

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Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C67/00Preparation of carboxylic acid esters
    • C07C67/08Preparation of carboxylic acid esters by reacting carboxylic acids or symmetrical anhydrides with the hydroxy or O-metal group of organic compounds

Abstract

The invention discloses an industrial acetic ether production device which comprises a raw material tank, wherein a raw material inlet is formed in the raw material tank; the raw material tank is connected with an esterification kettle through a feeding pipeline; a preheater is arranged on the feeding pipeline; the esterification kettle is connected with a rectifier through a discharge pipeline; the rectifier is connected with a condenser; the condenser is connected with a storage tank; a phase splitter is arranged between the condenser and the storage tank; the esterification kettle is internally provided with a heating tube; the heating tube passes through the bottom of the esterification kettle and is provided with an inlet and an outlet. Through secondary heating on raw materials inside the esterification kettle, the reaction is guided towards esterification, so that the conversion rate of ethanol and acetic acid is improved.

Description

A kind of industrialization vinyl acetic monomer production equipment
Technical field
The present invention relates to chemical industry equipment field, particularly a kind of industrialization vinyl acetic monomer production equipment.
Background technology
Vinyl acetic monomer is one of most widely used fatty acid ester, is a kind of quick-drying solvent, has excellent dissolving power, is fabulous industrial solvent.Can be used for cellulose nitrate, ethyl cellulose, chlorinated rubber and ethenoid resin, synthetic rubber, also can be used for used in copy machines liquid nitrocellulose ink.As industrial solvent, can make the solvent of caking agent, the thinner spraying paint for products such as coating, tackiness agent, ethyl cellulose, leatheroid, malthoid tinting material, regenerated fibers, in textile industry, can be used as clean-out system.As tackiness agent, for the production of printing-ink, olivet; As extraction agent, for the production of the products such as medicine, organic acid.As perfume base, for the main raw material of the fruit essences such as pineapple, banana, strawberry and whisky, milk wet goods spices, in perfume industry, be important spice additive, can make the component of deodorant tune.Purposes is very extensive, is with a wide range of applications.
At present, vinyl acetic monomer industrial process mainly contains 4 kinds of acetic acid esterified method, acetaldehyde condensation method, alcohol dehydrogenase method and acetic acid with ethylene additive processes.Esterification process is the main technique route that domestic industry is produced vinyl acetic monomer.Taking acetic acid and ethanol as raw material, sulfuric acid is that catalyst for making direct esterification obtains vinyl acetic monomer, then through dehydration, the refining finished product that to obtain of fractionation.
Domestic patent database disclosed the patented technology of some relevant vinyl acetic monomer production equipments in recent years:
For example [title] is provided with the vinyl acetic monomer esterification reaction tower of new type heater, [notification number] CN203459080U, this invention provides a kind of acetic acid ethyl reaction device, relate to a kind of esterification reaction equipment field, comprise esterification reaction tower, wherein, esterification reaction tower lower end is inverted cone-shaped, be provided with material inlet at esterification tower bottom, this material inlet communicates with a circular body, described circular body one end is provided with acetic acid entrance, the other end is provided with ethanol and sulfuric acid entrance, be provided with preheater in the circular body left and right sides, the present invention is reasonable in design, two kinds of raw materials are with pressure after preheating enters esterification reaction tower from relative direction respectively, fully contact at tower body inverted cone-shaped position, ensure the transformation efficiency of reaction, and shorten the reaction times.But along with the carrying out reacting in reaction tower, heat can distribute, material temperature is reduced, transformation efficiency can decline.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, and a kind of industrialization vinyl acetic monomer production equipment is provided, and by the second-heating to raw material, makes to react under its optimum temps that remains on reaction, effectively improves efficiency of conversion, economizes on resources.
To achieve these goals, the technical scheme that patent of the present invention adopts:
A kind of industrialization vinyl acetic monomer production equipment, comprise raw material tank, described raw material tank is provided with material inlet, described raw material tank is connected with esterifying kettle by feed pipe, described feed pipe is provided with preheater, described esterifying kettle is connected with rectifier by discharge pipe, and described rectifier connects condenser, and described condenser connects storage tank.
Further illustrate as of the present invention, between described condenser and storage tank, be provided with phase splitter, in described esterifying kettle, be provided with heating tube, described heating tube process esterifying kettle bottom, and be provided with import and outlet.
Further illustrate as of the present invention, it is stainless steel that described heating tube adopts material.
Further illustrate as of the present invention, described discharge pipe is provided with valve.
Principle of work of the present invention: add respectively acetic acid and ethanol and catalyst sulfuric acid to raw material tank from material inlet, then flow into preheater by feed pipe, after preheater, after preheating, flow into esterifying kettle, the now valve closes on discharge pipe, now inject hot water or steam by the import of heating tube, flow through esterifying kettle bottom, after second-heating raw material, the hot water of dissipated heat or steam flow out from the outlet of heating tube, fully after reaction, open valve, mixture flows into rectifier by pipeline, enter condenser by the mixture after rectifying separation, separate and obtain ethyl acetate through phase splitter again, be stored in storage tank.
Beneficial effect of the present invention: by the second-heating to reaction mixture, make to react under its optimum temps that remains on reaction, effectively improve efficiency of conversion, saved the resources of production.And adopt stainless steel to make heat pipe, make it corrosion-resistant, easily heat conduction, the transformation efficiency of raising ethanol, acetic acid.Utilize apparatus of the present invention, industrialization vinyl acetic monomer esterification speed improves 15%-25%, and feed stock conversion improves more than 15%.
Brief description of the drawings
Fig. 1 is structural representation of the present invention.
In figure: 1-raw material tank; 2-material inlet; 3-feed pipe; 4-preheater; 5-esterifying kettle; 6-heating tube; 7-import; 8-outlet; 9-discharge pipe; 10-valve; 11-rectifier; 12-condenser; 13-phase splitter; 14-storage tank.
body embodiment
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.
The present embodiment comprises raw material tank 1, described raw material tank 1 is provided with material inlet 2, described raw material tank 2 is connected with esterifying kettle 5 by feed pipe 3, described feed pipe 3 is provided with preheater 4, described esterifying kettle 5 is connected with rectifier 11 by discharge pipe 9, described rectifier 11 connects condenser 12, described condenser 12 connects storage tank 14, between described condenser 12 and storage tank 14, be provided with phase splitter 13, in described esterifying kettle 5, be provided with heating tube 6, described heating tube 6 process esterifying kettle 5 bottoms, and be provided with import 7 and outlet 8, on described discharge pipe, 9 are provided with valve 10.
Add respectively acetic acid and ethanol and catalyst sulfuric acid to raw material tank 1 from material inlet 2, then flow into preheater 4 by feed pipe 3, after preheater 4, after preheating, flow into esterifying kettle 5, now the valve 10 on discharge pipe 9 is closed, now inject hot water or steam by the import 7 of heating tube 6, esterifying kettle 5 bottoms of flowing through, after second-heating raw material, the hot water of dissipated heat or steam flow out from the outlet 8 of heating tube 6, fully after reaction, open valve 10, mixture flows into rectifier 11 by pipeline, enter condenser 12 by the mixture after rectifying separation, separate and obtain ethyl acetate through phase splitter 13 again, be stored in storage tank 14.Utilize the present embodiment device to produce, industrialization vinyl acetic monomer esterification speed improves 15%-25%, and feed stock conversion improves more than 15%.
The above embodiment of the present invention scheme is only can not limit the present invention to explanation of the present invention, in claim, point out the scope of apparatus of the present invention parameters, and the scope of apparatus of the present invention parameter is not pointed out in above-mentioned explanation, therefore, any change in implication and the scope suitable with claims of the present invention, is all considered to be in the scope that is included in claims.
The present invention is through multidigit industrialization vinyl acetic monomer production equipment researchist long term operation experience accumulation, and create by creative work, it is in actual plastic suction pipe preparation is produced, this device is by the second-heating to reaction mixture, make to react under its optimum temps that remains on reaction, effectively improve efficiency of conversion, saved the resources of production.

Claims (5)

1. an industrialization vinyl acetic monomer production equipment, comprise raw material tank (1), it is characterized in that: described raw material tank (1) is provided with material inlet (2), described raw material tank (2) is connected with esterifying kettle (5) by feed pipe (3), described feed pipe (3) is provided with preheater (4), described esterifying kettle (5) is connected with rectifier (11) by discharge pipe (9), and described rectifier (11) connects condenser (12), and described condenser (12) connects storage tank (14).
2. a kind of industrialization vinyl acetic monomer production equipment according to claim 1, is characterized in that: between described condenser (12) and storage tank (14), be provided with phase splitter (13).
3. a kind of industrialization vinyl acetic monomer production equipment according to claim 1, is characterized in that: in described esterifying kettle (5), be provided with heating tube (6), and described heating tube (6) process esterifying kettle (5) bottom, and be provided with import (7) and outlet (8).
4. a kind of industrialization vinyl acetic monomer production equipment according to claim 1, is characterized in that: it is stainless steel that described heating tube (6) adopts material.
5. a kind of industrialization vinyl acetic monomer production equipment according to claim 1 and 2, is characterized in that: on described discharge pipe, (9) are provided with valve (10).
CN201410340885.XA 2014-07-17 2014-07-17 Industrial acetic ether production device Pending CN104086413A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410340885.XA CN104086413A (en) 2014-07-17 2014-07-17 Industrial acetic ether production device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410340885.XA CN104086413A (en) 2014-07-17 2014-07-17 Industrial acetic ether production device

Publications (1)

Publication Number Publication Date
CN104086413A true CN104086413A (en) 2014-10-08

Family

ID=51634204

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410340885.XA Pending CN104086413A (en) 2014-07-17 2014-07-17 Industrial acetic ether production device

Country Status (1)

Country Link
CN (1) CN104086413A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104437285A (en) * 2014-11-30 2015-03-25 花勇功 Ethyl acetate reaction device
CN105541615A (en) * 2016-02-29 2016-05-04 薛晶 Device for preparation of acetic ether
CN105622405A (en) * 2016-02-29 2016-06-01 薛晶 Ethyl acetate production device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1827581A (en) * 2006-04-07 2006-09-06 华南理工大学 Process and equipment for preparing ethyl acetate and butyl acetate
CN101486641A (en) * 2009-02-16 2009-07-22 江门谦信化工发展有限公司 Industrialized production method of ethyl acetate and production apparatus thereof
CN101735045A (en) * 2009-12-18 2010-06-16 中山大学 Method for producing ethyl acetate by using entrainer

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1827581A (en) * 2006-04-07 2006-09-06 华南理工大学 Process and equipment for preparing ethyl acetate and butyl acetate
CN101486641A (en) * 2009-02-16 2009-07-22 江门谦信化工发展有限公司 Industrialized production method of ethyl acetate and production apparatus thereof
CN101735045A (en) * 2009-12-18 2010-06-16 中山大学 Method for producing ethyl acetate by using entrainer

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104437285A (en) * 2014-11-30 2015-03-25 花勇功 Ethyl acetate reaction device
CN105541615A (en) * 2016-02-29 2016-05-04 薛晶 Device for preparation of acetic ether
CN105622405A (en) * 2016-02-29 2016-06-01 薛晶 Ethyl acetate production device

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Application publication date: 20141008

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