CN108295799B - High-efficiency polyether reactor - Google Patents
High-efficiency polyether reactor Download PDFInfo
- Publication number
- CN108295799B CN108295799B CN201810261304.1A CN201810261304A CN108295799B CN 108295799 B CN108295799 B CN 108295799B CN 201810261304 A CN201810261304 A CN 201810261304A CN 108295799 B CN108295799 B CN 108295799B
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- CN
- China
- Prior art keywords
- reaction
- circulating liquid
- spraying
- inlet
- reaction container
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- 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.)
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Links
- 239000004721 Polyphenylene oxide Substances 0.000 title claims abstract description 10
- 229920000570 polyether Polymers 0.000 title claims abstract description 10
- 239000007788 liquid Substances 0.000 claims abstract description 43
- 239000000463 material Substances 0.000 claims abstract description 38
- 238000005507 spraying Methods 0.000 claims abstract description 27
- 239000000203 mixture Substances 0.000 claims abstract description 7
- 238000002347 injection Methods 0.000 claims description 20
- 239000007924 injection Substances 0.000 claims description 20
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 238000007599 discharging Methods 0.000 abstract description 7
- 238000003756 stirring Methods 0.000 abstract description 3
- 239000007791 liquid phase Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/26—Nozzle-type reactors, i.e. the distribution of the initial reactants within the reactor is effected by their introduction or injection through nozzles
-
- 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
- B01J10/00—Chemical processes in general for reacting liquid with gaseous media other than in the presence of solid particles, or apparatus specially adapted therefor
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
- C08G65/02—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring
- C08G65/04—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers only
- C08G65/06—Cyclic ethers having no atoms other than carbon and hydrogen outside the ring
- C08G65/08—Saturated oxiranes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
- C08G65/02—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring
- C08G65/04—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers only
- C08G65/06—Cyclic ethers having no atoms other than carbon and hydrogen outside the ring
- C08G65/16—Cyclic ethers having four or more ring atoms
- C08G65/18—Oxetanes
-
- 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
- Y02P20/141—Feedstock
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
Abstract
The invention discloses a high-efficiency polyether reactor, which comprises a cylindrical closed reaction container, a feeding system and a discharging system, wherein the feeding system comprises a circulating liquid inlet and a reaction material inlet which are arranged on the upper end surface of the reaction container, and a circulating liquid spraying device and a reaction material spraying device which are arranged inside the reaction container and are respectively communicated with the circulating liquid inlet and the reaction material inlet; the circulating liquid spraying device and the reaction material spraying device comprise a plurality of spraying ports which are arranged on the inner wall of the upper part of the reaction container in a dispersing mode, and the spraying directions of the spraying ports are concentrated. The advantages are that: firstly, the jet ports jet towards one place, so that circulating liquid and reaction materials can be fully contacted, and the mixture jet pipe plays a role in stirring lower liquid by discharging from one side, so that the reaction is more thorough; secondly, when the material is discharged from the discharging system and does not reach the reaction requirement, the discharging system can be communicated with the circulating liquid inlet, and the circulating liquid is introduced again for circulating reaction.
Description
Technical Field
The invention relates to the field of chemical machinery, in particular to a high-efficiency polyether reactor.
Background
Polyether reactor is the main equipment of present production polyether, but present reactor is because the less radian in top cooperates by the center to the spraying system of reaction material all around for reaction material is sprayed on the week wall of reactor and flows to the reactor bottom along the week wall, makes the gas-liquid phase dispersion of reaction material insufficient, thereby influences holistic reaction efficiency.
Disclosure of Invention
The invention aims to: in order to overcome the defects of the background technology, the invention discloses a polyether reactor which has high efficiency and thorough reaction, thereby reducing the circulation times of circulating liquid and improving the reaction efficiency.
The technical scheme is as follows: the invention relates to a high-efficiency polyether reactor, which comprises a cylindrical closed reaction container, a feeding system arranged at the upper part of the reaction container and a discharging system arranged at the bottom of the reaction container, wherein the feeding system comprises a circulating liquid inlet and a reaction material inlet which are arranged at the upper end surface of the reaction container, and a circulating liquid spraying device and a reaction material spraying device which are respectively communicated with the circulating liquid inlet and the reaction material inlet and are arranged in the reaction container; the circulating liquid spraying device and the reaction material spraying device comprise a plurality of spraying ports which are arranged on the inner wall of the upper part of the reaction container in a dispersing mode, and the spraying directions of the spraying ports are concentrated. During feeding, circulating liquid and reaction materials (gaseous EO or PO) are sprayed out in a mist form through a spraying opening dispersed at the upper part of the reaction container and are concentrated at one position of the upper cavity, so that the dispersion of the gaseous liquid is obvious, the formation of a film on the wall of the equipment due to the formation of mist drops is avoided, the reaction surface area is reduced, and the reaction is more complete.
Further, the feeding system further comprises a mixture injection pipe arranged at one side of the reaction container and extending from the top to the bottom. The mixed material injection pipe is used for connecting the venturi injector with the early-stage reaction feeding device, is matched with the circulating liquid injection device and the reaction material injection device, performs mixed reaction on part of the circulating liquid and the reaction material before the circulating liquid injection device and the reaction material injection device work, and conveys the mixed reaction to the bottom of the reaction container, and is introduced into one side to play a role in stirring the liquid at the lower part, so that the growth ratio can be improved, and the method is favorable for manufacturing high molecular weight products.
Further, the upper part of the reaction container is of a similar spherical cavity structure with the inner diameter larger than that of the middle-lower cylinder, and the spraying direction of the spraying port is concentrated at the sphere center of the spherical cavity. The spherical cavity forms a relatively independent gas-liquid phase contact chamber with larger volume.
Further, the circulating liquid injection device comprises a first annular pipe which is downwards extended along the inner wall of the reaction vessel by the circulating liquid inlet and a plurality of second annular pipes which are surrounded by the peripheral wall of the top of the reaction vessel and are axially arranged at a lower interval and are communicated with the first annular pipe, and the injection openings are arranged on the second annular pipe at intervals, so that the injection openings are uniformly distributed on the peripheral wall of the upper reaction cavity, and the sufficient contact between the circulating liquid and the materials can be ensured when the materials are injected.
Further, the outer surface of the reaction container is provided with a plurality of fixed lugs at intervals, and a catalyst inlet, a pressure gauge interface and a vacuum pipe orifice are also arranged.
The beneficial effects are that: compared with the prior art, the invention has the advantages that: firstly, by increasing the size of the upper space of the reaction container, a similar reaction cavity is formed, and the jet ports arranged on the inner peripheral wall of the cavity are all jet towards one place, so that circulating liquid and reaction materials can be fully contacted, and the mixture jet pipe arranged on one side can play a role in stirring lower liquid, so that the reaction is more thorough; secondly, when the material is discharged from the discharging system and does not meet the reaction requirement, the discharged material liquid can be removed by a circulating pump through an external heat exchanger and then is communicated with a circulating liquid inlet, the material liquid is introduced into a reaction container, and the jet mixing reaction is carried out again through a jet orifice.
Drawings
FIG. 1 is a schematic side cross-sectional view of the present invention;
Fig. 2 is a schematic view of an axial projection structure of the present invention.
Detailed Description
The technical scheme of the invention is further described below with reference to the accompanying drawings and examples.
The high-efficiency polyether reactor as shown in fig. 1 and 2 comprises a cylindrical closed reaction vessel 1, wherein the upper end part of the cylindrical reaction vessel 1 is connected with a hemispherical head with a diameter larger than that of a cylinder through a big head, so that a spherical-like reaction cavity structure with a larger volume is formed at the upper part of the reaction vessel 1 and is used as a relatively independent gas-liquid phase contact chamber.
The upper end face of the reaction vessel 1 is provided with a circulating liquid inlet 2 and a reaction material inlet 3, and the circulating liquid inlet 2 and the reaction material inlet 3 can be arranged in a plurality of ways; the inside of the reaction vessel 1 is provided with a circulating liquid injection device 4 and a reaction material injection device 5 which are respectively communicated with the circulating liquid inlet 2 and the reaction material inlet 3.
The circulating liquid inlet 2 extends downwards along the inner wall of the reaction cavity at the upper part of the reaction vessel 1 to form a first annular pipe 7, the peripheral wall of the reaction cavity is surrounded by the top and is axially and downwards provided with four circles of second annular pipes 8 at intervals, the second annular pipes 8 are communicated with the first annular pipe 7 at the contact end when surrounding the peripheral wall, the jet ports are arranged on the second annular pipes 8 at intervals, the jet directions are all aligned with the center of the reaction cavity in a concentrated manner, and the circulating liquid jet device 4 is integrally formed.
The reaction material inlets 3 are arranged at the upper end face of the reaction container 1, and two reaction material injection devices 5 are correspondingly arranged in the reaction container 1, and injection ports on the reaction material injection devices 5 are also aligned to the center of the reaction cavity in a concentrated manner, so that circulating liquid and reactants are fully mixed for reaction in the injection process.
One side of the reaction vessel 1 is also provided with a mixture injection pipe 6, the mixture is directly sent to the bottom of the reaction vessel 1 by entering from a quasi-spherical reaction cavity at the top and extending to a cylindrical reaction area at the lower part, and the mixture injection pipe 6 has enough length to enable the circulating liquid and the reaction material to carry out mixed reaction.
Four fixed lugs 9 are arranged on the outer surface of the reaction container 1 at intervals, and a catalyst inlet, a pressure gauge interface and a vacuum pipe orifice are also arranged.
When the material is discharged from the discharging system and does not meet the reaction requirement, the discharged material liquid can be removed by a circulating pump through an external heat exchanger and then is communicated with a circulating liquid inlet, and is introduced into a reaction container, and the jet orifice is used for carrying out jet mixing reaction again.
Claims (1)
1. The utility model provides a high-efficient polyether reactor, includes cylindric airtight reaction vessel (1), sets up feed system and the setting of reaction vessel (1) upper portion are in the ejection of compact system of reaction vessel (1) bottom, its characterized in that: the feeding system comprises a circulating liquid inlet (2) and a reaction material inlet (3) which are arranged on the upper end surface of the reaction container (1), and a circulating liquid spraying device (4) and a reaction material spraying device (5) which are arranged inside the reaction container (1) and respectively communicated with the circulating liquid inlet (2) and the reaction material inlet (3); the circulating liquid spraying device (4) and the reaction material spraying device (5) comprise a plurality of spraying ports which are arranged on the inner wall of the upper part of the reaction container (1) in a dispersing way, and the spraying directions of the spraying ports are concentrated;
the feeding system also comprises a mixture injection pipe (6) which is arranged at one side of the reaction vessel (1) and extends from the top to the bottom;
the upper part of the reaction container (1) is of a similar spherical cavity structure with the inner diameter larger than that of the middle-lower cylinder, and the spraying direction of the spraying port is concentrated at the spherical center of the spherical cavity;
The circulating liquid injection device (4) comprises a first annular pipe (7) which extends downwards along the inner wall of the reaction vessel (1) from a circulating liquid inlet (2) and a plurality of second annular pipes (8) which are surrounded by the peripheral wall at the top of the reaction vessel (1) and are axially and downwards arranged at intervals and are communicated with the first annular pipe (7), and injection ports are arranged on the second annular pipe (8) at intervals;
The outer surface of the reaction container (1) is provided with a plurality of fixed lugs (9) at intervals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810261304.1A CN108295799B (en) | 2018-03-28 | 2018-03-28 | High-efficiency polyether reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810261304.1A CN108295799B (en) | 2018-03-28 | 2018-03-28 | High-efficiency polyether reactor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108295799A CN108295799A (en) | 2018-07-20 |
| CN108295799B true CN108295799B (en) | 2024-06-21 |
Family
ID=62847689
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810261304.1A Active CN108295799B (en) | 2018-03-28 | 2018-03-28 | High-efficiency polyether reactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108295799B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112221459B (en) * | 2020-10-14 | 2022-07-22 | 华东理工大学 | Polyether neutralization reactor |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1244137A (en) * | 1997-01-20 | 2000-02-09 | 林德股份公司 | Apparatus for producing polyadducts of alkylene oxides with combined liquid-in-gas and gas-in-liquid dispersion reactor |
| CN205127968U (en) * | 2015-11-26 | 2016-04-06 | 浙江金氟隆化工装备有限公司 | Spraying reation kettle |
| CN205182739U (en) * | 2015-12-04 | 2016-04-27 | 抚顺东科精细化工有限公司 | Reation kettle feed distribution ware |
| CN208288024U (en) * | 2018-03-28 | 2018-12-28 | 苏州市锦翔压力容器制造有限公司 | A kind of efficient polyether reactant device |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE451641A (en) * | 1943-07-27 | |||
| FR2770151B1 (en) * | 1997-10-28 | 2001-06-22 | Atochem Elf Sa | METHOD AND DEVICE FOR THE CONTINUOUS MICROMIXING OF FLUIDS AND THEIR USE, IN PARTICULAR FOR POLYMERIZATION REACTIONS |
| JP4420690B2 (en) * | 2004-02-04 | 2010-02-24 | ホソカワミクロン株式会社 | Fine particle production method and fine particle production apparatus |
| JP6204179B2 (en) * | 2012-12-13 | 2017-09-27 | 旭化成株式会社 | Polymerization reactor |
| CN203540557U (en) * | 2013-11-14 | 2014-04-16 | 天津市精细化学制剂厂 | Preparation device of nonyl phenol polyoxyethylene ether |
| KR20160024758A (en) * | 2014-08-25 | 2016-03-07 | 주식회사 엘지화학 | Reactor |
| US20160122669A1 (en) * | 2014-11-05 | 2016-05-05 | General Electric Company | System and method for gasification |
| CN104815569B (en) * | 2015-04-10 | 2018-08-10 | 顾卫荣 | Liquid air mixer and the gas-liquid retracting device for using this mixer |
-
2018
- 2018-03-28 CN CN201810261304.1A patent/CN108295799B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1244137A (en) * | 1997-01-20 | 2000-02-09 | 林德股份公司 | Apparatus for producing polyadducts of alkylene oxides with combined liquid-in-gas and gas-in-liquid dispersion reactor |
| CN205127968U (en) * | 2015-11-26 | 2016-04-06 | 浙江金氟隆化工装备有限公司 | Spraying reation kettle |
| CN205182739U (en) * | 2015-12-04 | 2016-04-27 | 抚顺东科精细化工有限公司 | Reation kettle feed distribution ware |
| CN208288024U (en) * | 2018-03-28 | 2018-12-28 | 苏州市锦翔压力容器制造有限公司 | A kind of efficient polyether reactant device |
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| Publication number | Publication date |
|---|---|
| CN108295799A (en) | 2018-07-20 |
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