CN209721999U - A kind of preparation facilities of hydroxyethyl methacrylate - Google Patents
A kind of preparation facilities of hydroxyethyl methacrylate Download PDFInfo
- Publication number
- CN209721999U CN209721999U CN201821890169.9U CN201821890169U CN209721999U CN 209721999 U CN209721999 U CN 209721999U CN 201821890169 U CN201821890169 U CN 201821890169U CN 209721999 U CN209721999 U CN 209721999U
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- China
- Prior art keywords
- static mixer
- destilling tower
- import
- reaction unit
- hydroxyethyl methacrylate
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Abstract
The utility model discloses a kind of preparation facilities of hydroxyethyl methacrylate, including microchannel reaction unit, preceding static mixer, preceding destilling tower, rear destilling tower, rear static mixer and the rectifying column set gradually by process route；Two feeding engines are communicated in the import of microchannel reaction unit, the import of preceding static mixer and the outlet of microchannel reaction unit, the outlet of preceding static mixer is connected to preceding destilling tower, preceding destilling tower is connected to rear destilling tower, the import of static mixer is connected to rear destilling tower afterwards, and the outlet of rear static mixer is connected to rectifying column；Polymerization inhibitor filler pipe is respectively communicated in the import of preceding static mixer and rear static mixer.The preparation facilities structure is simple, and can efficient serialization realization hydroxyethyl methacrylate production.
Description
Technical field
The utility model relates to a kind of preparation facilities of hydroxyethyl methacrylate.
Background technique
Existing active carbon-carbon double bond in hydroxyethyl methacrylate (HEMA) molecule, and have and be easy to be condensed, be dehydrated,
- OH the group of the reactions such as deoxidation can be copolymerized with acrylic monomer, and the acrylic resin containing active hydroxyl groups, this Type of Collective is made
Object bonding securely, be not easy to peel off, there is good water resistance, coating, binder and in terms of have it is extensive
Purposes.
It is being reacted in industrialized production the most commonly used is the opening method of methacrylic acid and ethylene oxide at present
Ethylene oxide is gradually added drop-wise in methacrylic acid by certain alkanoic acid ratio in kettle, is generated under catalyst and polymerization inhibitor effect
Hydroxyethyl methacrylate.The continuous production of hydroxyethyl methacrylate is difficult to realize using reaction kettle.
Summary of the invention
The purpose of the utility model is to provide it is a kind of can serialization prepare the device of hydroxyethyl methacrylate.
In order to realize above-mentioned purpose of utility model, the utility model provides the hydroxyethyl methacrylate such as flowering structure
Preparation facilities, design feature be the preparation facilities include the microchannel reaction unit set gradually by process route, it is preceding
Static mixer, preceding destilling tower, rear destilling tower, rear static mixer and rectifying column；It is connected in the import of microchannel reaction unit
There are two feeding engines, the import of preceding static mixer and the outlet of microchannel reaction unit, the outlet of preceding static mixer
It is connected to preceding destilling tower, preceding destilling tower is connected to rear destilling tower, and the import of rear static mixer is connected to rear destilling tower, rear static
The outlet of mixer is connected to rectifying column；Polymerization inhibitor filling is respectively communicated in the import of preceding static mixer and rear static mixer
Pipe.
The microchannel reaction unit is that a micro passage reaction or two micro passage reactions are directly cascaded
Assembly.
The utility model utilizes existing equipment and facility, achieves that goal of the invention through reasonable organic assembling, not only
Structure is simple, and can efficient serialization realization hydroxyethyl methacrylate production.
Detailed description of the invention
Fig. 1 is the principle schematic diagram of preparation facilities.
Specific embodiment
The preparation facilities of hydroxyethyl methacrylate is as shown in Figure 1, the preparation facilities includes setting gradually by process route
Microchannel reaction unit 1, preceding static mixer 2, preceding destilling tower 3, rear destilling tower 4, rear static mixer 5 and rectifying column 6；It is micro-
Two feeding engines (7,8) are communicated in the import of pathway reaction device 1, import and the microchannel plate of preceding static mixer 2 should fill
1 outlet is set, the outlet of preceding static mixer 2 is connected to the feed inlet of preceding destilling tower 3, and the bottom of preceding destilling tower 3 is with after
The feed inlet of destilling tower 4 is connected to, and the import of rear static mixer 5 is connected to the top of rear destilling tower, and rear static mixer 5 goes out
Mouth is connected to the feed inlet of rectifying column；Polymerization inhibitor filling is respectively communicated in the import of preceding static mixer 2 and rear static mixer 5
Pipe 9.The microchannel reaction unit can be a micro passage reaction, and a micro passage reaction is as microchannel reaction unit
In use, micro passage reaction is divided into the progress temperature control of two sections of front and back, leading portion is that the section of close import is high-temperature control
Section, back segment are that the section close to outlet is bottom temperature control section.The microchannel reaction unit can also be two micro passage reactions
The assembly being directly cascaded, two micro passage reactions are directly connected as microchannel reaction unit in use, front
One uses as high-temperature control section, behind a conduct bottom temperature control section use.
The usage mode of the utility model is illustrated below with reference to the preparation of hydroxyethyl methacrylate.Metering system
The preparation of sour hydroxyl ethyl ester is the following steps are included: (1) urges iron hydroxide and methacrylic acid chromium with what arbitrary proportion was mixed to form
Agent, ZJ-701 are dissolved in formation feed liquid A in methacrylic acid；Ethylene oxide is dissolved in chloroform and forms feed liquid B；Catalyst, ZJ-
701 and methacrylic acid mass ratio are as follows: 5:3:1000；The volume ratio of ethylene oxide and chloroform is 1:6.(2) with feeding engine 7 and sending
Feed liquid A and feed liquid B is sent into microchannel reaction unit 1 by material pump simultaneously respectively, and microchannel reaction unit 1 is controlled temperature not
With high-temperature control section and low temperature control section is divided into, at 90 DEG C, the temperature of low temperature control section is controlled for the temperature control of high-temperature control section
At 80 DEG C, allow feed liquid A and feed liquid B followed by high-temperature control section and low temperature control section, so that feed liquid A and feed liquid B are in microchannel
It is reacted on reaction unit inner edge flowing side；Feed liquid A and feed liquid B flow through high-temperature control section time be 2min, flow through low temperature control
The time of section processed is 5min；The liquid flowed out from microchannel reaction unit 1 is reaction residual liquor.(3) before reaction residual liquor flows into
By the way that ZJ-701, the adding amount of ZJ-701 is added in polymerization inhibitor filler pipe 9 forward static mixer 2 while static mixer 2
For 100ppm；Destilling tower 3 before reaction residual liquor and the premenstrual static mixer 2 of ZJ-701 flow into after mixing, pressure -1.33MPa,
Excessive methacrylic acid and chloroform are distilled off under conditions of temperature 50 C；(4) excessive metering system is removed through step (3)
Destilling tower 4 after reaction residual liquor after acid and chloroform is flowed by preceding destilling tower 3, under conditions of pressure 1200Pa, 90 DEG C of temperature
Further distillation, the fraction for distilling acquisition is hydroxyethyl methacrylate crude product；(5) hydroxyethyl methacrylate that step (4) obtains
Static mixer 5 after ethyl ester flows into, while by the way that para hydroxybenzene is added in polymerization inhibitor filler pipe 9 backward static mixer 5
Methyl ether, the adding amount of p-hydroxyanisole are 50ppm；Hydroxyethyl methacrylate crude product and p-hydroxyanisole are static mixed after
Clutch 5 flows into rectifying column 6 after mixing and carries out rectifying, and controlling is 110 DEG C for pressure 10Pa, temperature and reflux ratio is 1:5, and rectifying obtains
To fraction be hydroxyethyl methacrylate.
Claims (1)
1. a kind of preparation facilities of hydroxyethyl methacrylate, it is characterised in that the preparation facilities includes successively setting by process route
Microchannel reaction unit, preceding static mixer, preceding destilling tower, rear destilling tower, rear static mixer and the rectifying column set；Microchannel
Two feeding engines are communicated in the import of reaction unit, the import of preceding static mixer and the outlet of microchannel reaction unit connect
Logical, the outlet of preceding static mixer is connected to preceding destilling tower, and preceding destilling tower is connected to rear destilling tower, the import of rear static mixer
It is connected to rear destilling tower, the outlet of rear static mixer is connected to rectifying column；Preceding static mixer and rear static mixer into
Polymerization inhibitor filler pipe is respectively communicated on mouth；The microchannel reaction unit is that a micro passage reaction or two microchannel plates are answered
The assembly that device is directly cascaded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821890169.9U CN209721999U (en) | 2018-11-16 | 2018-11-16 | A kind of preparation facilities of hydroxyethyl methacrylate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821890169.9U CN209721999U (en) | 2018-11-16 | 2018-11-16 | A kind of preparation facilities of hydroxyethyl methacrylate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209721999U true CN209721999U (en) | 2019-12-03 |
Family
ID=68658013
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821890169.9U Active CN209721999U (en) | 2018-11-16 | 2018-11-16 | A kind of preparation facilities of hydroxyethyl methacrylate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209721999U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113816853A (en) * | 2021-09-23 | 2021-12-21 | 菏泽昌盛源科技股份有限公司 | Micro-reaction continuous production method and device for hydroxyl acrylate |
| CN113816853B (en) * | 2021-09-23 | 2024-06-07 | 菏泽昌盛源科技股份有限公司 | Continuous production method and device for hydroxyl acrylate micro-reaction |
-
2018
- 2018-11-16 CN CN201821890169.9U patent/CN209721999U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113816853A (en) * | 2021-09-23 | 2021-12-21 | 菏泽昌盛源科技股份有限公司 | Micro-reaction continuous production method and device for hydroxyl acrylate |
| CN113816853B (en) * | 2021-09-23 | 2024-06-07 | 菏泽昌盛源科技股份有限公司 | Continuous production method and device for hydroxyl acrylate micro-reaction |
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