CN205850279U - A kind of special esters of methacrylic acid continuous rectification apparatus - Google Patents
A kind of special esters of methacrylic acid continuous rectification apparatus Download PDFInfo
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- CN205850279U CN205850279U CN201620776023.6U CN201620776023U CN205850279U CN 205850279 U CN205850279 U CN 205850279U CN 201620776023 U CN201620776023 U CN 201620776023U CN 205850279 U CN205850279 U CN 205850279U
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- removal tower
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- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 title claims abstract description 8
- 150000002148 esters Chemical class 0.000 title claims abstract description 8
- 238000010992 reflux Methods 0.000 claims abstract description 24
- 239000003112 inhibitor Substances 0.000 claims description 27
- 238000009833 condensation Methods 0.000 claims description 3
- 230000005494 condensation Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 8
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000010438 heat treatment Methods 0.000 abstract description 3
- 239000012847 fine chemical Substances 0.000 abstract 1
- 238000006116 polymerization reaction Methods 0.000 description 23
- 238000005265 energy consumption Methods 0.000 description 4
- 238000007599 discharging Methods 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000376 reactant Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
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- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
本实用新型涉及精细化工精馏技术领域，确切地说它是一种甲基丙烯酸特种酯类连续精馏装置。精馏塔分为脱轻和脱重两个塔的组合。在塔上进行外加热给物料加热，连续进料，直接得到产品。没有中间组分罐。取消了回流比分配器，改用回流罐。真空系统不单与接收罐相连，而且与塔顶冷凝器出料封头相连，结构简单、操作方便、易于控制、通过连续进料保持精馏系统稳定，从而得到含量高且稳定的产品。没有中间组分增加了产品的收率，增加了经济效益。
The utility model relates to the technical field of rectification in fine chemical industry, in particular it is a continuous rectification device for special esters of methacrylic acid. The rectification tower is divided into a combination of light removal and heavy removal towers. External heating is carried out on the tower to heat the material, and the material is continuously fed to obtain the product directly. There are no intermediate component tanks. The reflux ratio distributor is canceled and the reflux tank is used instead. The vacuum system is not only connected to the receiving tank, but also connected to the discharge head of the top condenser. The structure is simple, easy to operate, easy to control, and the rectification system is kept stable by continuous feeding, so as to obtain high-content and stable products. The absence of intermediate components increases the yield of the product and increases economic benefits.
Description
Technical field
This utility model relates to fine chemistry industry technical field of rectification, and exactly it is that a kind of seriality methacrylic acid is special
Plant esters product negative pressure purification & isolation device.
Background technology
At present, it is all to use intermittent rectification isolation technics that special esters of methacrylic acid reactant liquor separates, this point
From method and apparatus Shortcomings, separating effect is bad, and energy consumption is higher, and product yield is the highest.So increase yield, improve and receive
Rate, reduces the problem that energy consumption becomes in the urgent need to address.
Summary of the invention
The purpose of this utility model is to provide a kind of special esters of methacrylic acid continuous rectification apparatus, and it has operation letter
The features such as list, separating effect, yield are big, energy consumption is low, bad in order to solve separating effect, energy consumption is higher, and product yield is the most high
Problem.
It is an object of the invention to be achieved through the following technical solutions:
A kind of special esters of methacrylic acid continuous rectification apparatus includes: rectifying still, lightness-removing column, lightness-removing column reboiler, de-
Light first-stage condenser, de-light secondary condenser, de-light return tank, light component tank, weight-removing column, weight-removing column reboiler, de-light one-level
It is de-light that condenser, de-light secondary condenser, de-light return tank, products pot, the residual tank of still is characterized in that rectifying still (1) outlet connects
Feed pump (2) entrance, de-light feed pump (2) outlet connects lightness-removing column (3) intermediate feed mouth.Lightness-removing column (3) tower bottom outlet connects
Lightness-removing column circulating pump (4) entrance.Lightness-removing column circulating pump (4) outlet connects lightness-removing column reboiler (5) entrance, lightness-removing column reboiler
(5) charging aperture at the bottom of outlet connects lightness-removing column (3) tower.Lightness-removing column (3) tower top outlet connects lightness-removing column first-stage condenser (6) entrance,
The outlet of lightness-removing column first-stage condenser (6) connects the entrance of lightness-removing column secondary condenser (7), lightness-removing column secondary condenser (7)
Outlet connects the entrance of de-light return tank (8).The tank bottoms outlet of de-light return tank (8) connects lightness-removing column (3) overhead reflux pipe, de-light
The overfall of return tank (8) connects light component tank (9).Lightness-removing column polymerization inhibitor tank (10) outlet connects lightness-removing column polymerization inhibitor pump (11)
Entrance, lightness-removing column polymerization inhibitor pump (11) outlet connects lightness-removing column (3) overhead reflux pipe.Discharging opening at the bottom of lightness-removing column (3) tower connects de-
Weight tower feed pump (12) entrance, weight-removing column feed pump (12) outlet connects weight-removing column (13) intermediate feed mouth.Weight-removing column (13) tower
Bottom outlet connects weight-removing column circulating pump (14) entrance.Weight-removing column circulating pump (14) outlet connects weight-removing column reboiler (15) entrance,
Weight-removing column reboiler (15) outlet connects charging aperture at the bottom of weight-removing column (13) tower.Weight-removing column (13) tower top outlet connects weight-removing column one-level
The entrance of condenser (16), the outlet of weight-removing column first-stage condenser (16) connects the entrance of weight-removing column secondary condenser (17), de-
The outlet of weight tower secondary condenser (17) connects the entrance of de-weight return tank (18).The tank bottoms outlet of de-weight return tank (18) connects de-
Weight tower (13) overhead reflux pipe, the overfall of de-weight return tank (18) connects products pot (19).Weight-removing column polymerization inhibitor tank (20) goes out
Mouth connects weight-removing column polymerization inhibitor pump (21) entrance, and weight-removing column polymerization inhibitor pump (21) outlet connects weight-removing column (13) overhead reflux pipe.
Weight-removing column (13) tower bottom outlet connects the entrance of the residual pump of still (22), and the outlet of the residual pump of still (22) connects the entrance of the residual tank of still (23).
Rectifying column is divided into the combination of de-light and de-two towers of weight.
Tower carries out external heat heat to material.
Continuous feed, directly obtains product.
There is no intermediate species tank.
Eliminate reflux ratio distributor, use return tank instead.
Vacuum system is single to be connected with reception tank, and is connected with overhead condenser discharging end socket.
The utility model has the advantages that: simple in construction, easy to operate, easily controllable, by continuous feed keep rectification system
System is stable, thus obtains the product that content is high and stable.Do not have intermediate species to add the yield of product, add economic effect
Benefit.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure: 1 rectifying still；2 lightness-removing column feed pumps；3 lightness-removing columns；4 lightness-removing column circulating pumps；5 lightness-removing column reboilers；6 is de-light
First-stage condenser；7 take off light secondary condenser；8 take off light return tank；9 light component tanks；10 lightness-removing column polymerization inhibitor tanks；11 lightness-removing column resistances
Poly-agent pump 12 weight-removing column feed pump；13 weight-removing columns；14 weight-removing column circulating pumps；15 weight-removing column reboilers；16 take off light first-stage condenser；
17 take off light secondary condenser；18 take off light return tank；19 products pots；20 weight-removing column polymerization inhibitor tanks；21 weight-removing column polymerization inhibitor pumps；22 stills
Residual pump；The 23 residual tanks of still.
Detailed description of the invention
The invention will be further described with specific embodiment below in conjunction with the accompanying drawings.
Rectifying still outlet connects de-light feed pump entrance, and de-light feed pump outlet connects lightness-removing column intermediate feed mouth.
Lightness-removing column tower bottom outlet connects lightness-removing column pump entry.Lightness-removing column circulating-pump outlet connects lightness-removing column reboiler and enters
Mouthful, the outlet of lightness-removing column reboiler connects charging aperture at the bottom of lightness-removing column tower.Lightness-removing column tower top outlet connects lightness-removing column first-stage condenser
Entrance, the outlet of lightness-removing column first-stage condenser connects the entrance of lightness-removing column secondary condenser, the outlet of lightness-removing column secondary condenser
Connect the entrance of de-light return tank.The tank bottoms outlet of de-light return tank connects lightness-removing column overhead reflux pipe, the overflow of de-light return tank
Mouth connects light component tank.The outlet of lightness-removing column polymerization inhibitor tank connects lightness-removing column polymerization inhibitor pump intake, and lightness-removing column polymerization inhibitor pump discharge is even
Connect lightness-removing column overhead reflux pipe.
Discharging opening at the bottom of lightness-removing column tower connects weight-removing column feed pump entrance, and the outlet of weight-removing column feed pump connects to enter in the middle of weight-removing column
Material mouth.
Weight-removing column tower bottom outlet connects weight-removing column pump entry.Weight-removing column circulating-pump outlet connects weight-removing column reboiler and enters
Mouthful, the outlet of weight-removing column reboiler connects charging aperture at the bottom of weight-removing column tower.Weight-removing column tower top outlet connects weight-removing column first-stage condenser
Entrance, the outlet of weight-removing column first-stage condenser connects the entrance of weight-removing column secondary condenser, the outlet of weight-removing column secondary condenser
Connect the entrance of de-weight return tank.The de-tank bottoms outlet of weight return tank connects weight-removing column overhead reflux pipe, the overflow of de-weight return tank
Mouth connects products pot.The outlet of weight-removing column polymerization inhibitor tank connects weight-removing column polymerization inhibitor pump intake, and weight-removing column polymerization inhibitor pump discharge connects
Weight-removing column overhead reflux pipe.
Weight-removing column tower bottom outlet connects the entrance of the residual pump of still, and the residual delivery side of pump of still connects the entrance of the residual tank of still.
Work process: reactant liquor is fed from lightness-removing column intermediate feed mouth by lightness-removing column feed pump from rectifying still, material
Flowing at the bottom of lightness-removing column tower carry out heating evaporation by lightness-removing column circulating pump through lightness-removing column reboiler, gas enters through de-light rectifying column
Row mass exchange separates, and light-component gas is from tower top after twice condensation, and the liquid condensed out enters in de-light return tank, de-
Light return tank is connected with lightness-removing column reflux pipeline, regulates return flow by electric control valve, controls tower top temperature.De-light time
Stream tank overfall is connected with light component tank and gathers light component.Polymerization inhibitor passes through polymerization inhibitor pump from de-after dissolving from polymerization inhibitor tank
Light overhead reflux pipeline adds, and prevents polymerization in tower.
The de-light rear weight-removing column feed pump that passes through of lightness-removing column substrate material feeds from weight-removing column intermediate feed mouth, and material flow to de-weight
Carrying out heating evaporation by weight-removing column circulating pump through weight-removing column reboiler at the bottom of tower tower, gas carries out material friendship through de-weight rectifying column
Changing separation, product gas is from tower top after twice condensation, and the liquid that condenses out enters in de-weight return tank, de-weight return tank with
Weight-removing column reflux pipeline is connected, and regulates return flow by electric control valve, controls tower top temperature.De-weight return tank overfall
It is connected with products pot and gathers product.Polymerization inhibitor passes through polymerization inhibitor pump from weight-removing column top reflux pipeline after dissolving from polymerization inhibitor tank
Add, prevent polymerization in tower.Bottom weight-removing column, still is residual enters into deduplication use in the residual tank of still by the residual pump of still.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620776023.6U CN205850279U (en) | 2016-07-22 | 2016-07-22 | A kind of special esters of methacrylic acid continuous rectification apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620776023.6U CN205850279U (en) | 2016-07-22 | 2016-07-22 | A kind of special esters of methacrylic acid continuous rectification apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205850279U true CN205850279U (en) | 2017-01-04 |
Family
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| CN201620776023.6U Active CN205850279U (en) | 2016-07-22 | 2016-07-22 | A kind of special esters of methacrylic acid continuous rectification apparatus |
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| CN (1) | CN205850279U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106977402A (en) * | 2017-06-01 | 2017-07-25 | 黄石福尔泰医药科技有限公司 | A kind of continuous rectification prepares the method and its device of chloromethyl butylperoxyisopropyl carbonate |
| CN107827778A (en) * | 2017-10-30 | 2018-03-23 | 烟台国邦化工机械科技有限公司 | A kind of continuous rectification refines cyanoacetate compound device and its technique |
| CN111961205A (en) * | 2020-08-13 | 2020-11-20 | 江西蓝星星火有机硅有限公司 | Process for continuously producing various low-viscosity methyl silicone oils by comprehensively utilizing methyl silicone oil polymerization material |
| CN113521783A (en) * | 2021-06-07 | 2021-10-22 | 山东利兴化工有限公司 | Continuous rectification device for producing electronic grade propylene carbonate |
| CN114768278A (en) * | 2022-04-07 | 2022-07-22 | 浙江工业大学 | Energy-saving efficient DOTP continuous production device and production process thereof |
-
2016
- 2016-07-22 CN CN201620776023.6U patent/CN205850279U/en active Active
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106977402A (en) * | 2017-06-01 | 2017-07-25 | 黄石福尔泰医药科技有限公司 | A kind of continuous rectification prepares the method and its device of chloromethyl butylperoxyisopropyl carbonate |
| CN106977402B (en) * | 2017-06-01 | 2019-12-27 | 黄石福尔泰医药科技有限公司 | Method and device for preparing chloromethyl isopropyl carbonate by continuous rectification |
| CN107827778A (en) * | 2017-10-30 | 2018-03-23 | 烟台国邦化工机械科技有限公司 | A kind of continuous rectification refines cyanoacetate compound device and its technique |
| CN107827778B (en) * | 2017-10-30 | 2024-01-12 | 烟台国邦化工机械科技有限公司 | Device and process for refining cyanoacetic acid ester by continuous rectification |
| CN111961205A (en) * | 2020-08-13 | 2020-11-20 | 江西蓝星星火有机硅有限公司 | Process for continuously producing various low-viscosity methyl silicone oils by comprehensively utilizing methyl silicone oil polymerization material |
| CN111961205B (en) * | 2020-08-13 | 2021-12-14 | 江西蓝星星火有机硅有限公司 | Process for continuously producing various low-viscosity methyl silicone oils by comprehensively utilizing methyl silicone oil polymerization material |
| CN113521783A (en) * | 2021-06-07 | 2021-10-22 | 山东利兴化工有限公司 | Continuous rectification device for producing electronic grade propylene carbonate |
| WO2022257903A1 (en) * | 2021-06-07 | 2022-12-15 | 山东利兴化工有限公司 | Continuous rectification apparatus for producing electronic-grade propylene carbonate |
| EP4349441A4 (en) * | 2021-06-07 | 2024-05-29 | Shandong Lixing Chemical Co., Ltd. | Continuous rectification apparatus for producing electronic-grade propylene carbonate |
| CN114768278A (en) * | 2022-04-07 | 2022-07-22 | 浙江工业大学 | Energy-saving efficient DOTP continuous production device and production process thereof |
| CN114768278B (en) * | 2022-04-07 | 2023-12-05 | 浙江工业大学 | DOTP continuous production device and production process thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A continuous distillation device for special methyl methacrylate esters Granted publication date: 20170104 Pledgee: Finance and finance of Fushun Company limited by guarantee Pledgor: FUSHUN DONGLIAN ANXIN CHEMICAL CO.,LTD. Registration number: Y2024210000129 |