CN205235931U - Unsaturated polyether reaction unit of serialization production macromolecule - Google Patents
Unsaturated polyether reaction unit of serialization production macromolecule Download PDFInfo
- Publication number
- CN205235931U CN205235931U CN201521033241.2U CN201521033241U CN205235931U CN 205235931 U CN205235931 U CN 205235931U CN 201521033241 U CN201521033241 U CN 201521033241U CN 205235931 U CN205235931 U CN 205235931U
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- Prior art keywords
- recycle stock
- communicated
- unit
- collector
- heat exchanger
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- 238000006243 chemical reaction Methods 0.000 title claims abstract description 39
- 229920000570 polyether Polymers 0.000 title claims abstract description 27
- 239000004721 Polyphenylene oxide Substances 0.000 title claims abstract description 25
- 229920002521 macromolecule Polymers 0.000 title claims abstract description 19
- 238000004519 manufacturing process Methods 0.000 title abstract description 7
- 230000001839 systemic circulation Effects 0.000 claims abstract description 17
- 230000008676 import Effects 0.000 claims description 28
- 150000002605 large molecules Chemical class 0.000 claims description 16
- 239000000463 material Substances 0.000 claims description 5
- 238000003860 storage Methods 0.000 claims description 2
- 230000004087 circulation Effects 0.000 abstract description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 3
- 238000010923 batch production Methods 0.000 abstract description 3
- 230000005611 electricity Effects 0.000 abstract description 2
- 230000009467 reduction Effects 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 2
- 238000010924 continuous production Methods 0.000 abstract 3
- 229910001873 dinitrogen Inorganic materials 0.000 abstract 1
- 125000001301 ethoxy group Chemical group [H]C([H])([H])C([H])([H])O* 0.000 abstract 1
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 8
- 238000007046 ethoxylation reaction Methods 0.000 description 8
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- JECYNCQXXKQDJN-UHFFFAOYSA-N 2-(2-methylhexan-2-yloxymethyl)oxirane Chemical compound CCCCC(C)(C)OCC1CO1 JECYNCQXXKQDJN-UHFFFAOYSA-N 0.000 description 4
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 4
- 238000007599 discharging Methods 0.000 description 4
- 238000010926 purge Methods 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- 229920006305 unsaturated polyester Polymers 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000010977 unit operation Methods 0.000 description 3
- BYDRTKVGBRTTIT-UHFFFAOYSA-N 2-methylprop-2-en-1-ol Chemical compound CC(=C)CO BYDRTKVGBRTTIT-UHFFFAOYSA-N 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- ASUAYTHWZCLXAN-UHFFFAOYSA-N prenol Chemical compound CC(C)=CCO ASUAYTHWZCLXAN-UHFFFAOYSA-N 0.000 description 2
- 235000011121 sodium hydroxide Nutrition 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- ACIAHEMYLLBZOI-ZZXKWVIFSA-N Unsaturated alcohol Chemical compound CC\C(CO)=C/C ACIAHEMYLLBZOI-ZZXKWVIFSA-N 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006735 epoxidation reaction Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- 229920005646 polycarboxylate Polymers 0.000 description 1
- 238000006068 polycondensation reaction Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
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- Polyethers (AREA)
Abstract
The utility model relates to an unsaturated polyether reaction unit of serialization production macromolecule, its characteristics are, including two sets of circulation circuit of operation in turn, two sets of circulation circuit all include a systemic circulation unit and a tiny loop unit: two sets of circulation circuit switchover operation, the unsaturated polyether product of continuous production. The efficiency of the use of ethoxy - polyether reaction core unit - reactor is greatly improved. Compare with current batch production device, though the investment has increased 10 -15%, the productivity will improve 35 -45%, because the promotion of productivity, general facilitiess such as water, electricity, steam, nitrogen gas, instrument air consume corresponding reduction, have further promoted the competitiveness of product. It can continuous production, efficient to have, and be with low costs, can make full use of equipment capacity etc. The advantage. Be applicable to the continuous production of molecular weight 2000 -10000's the unsaturated polyether of macromolecule.
Description
Technical field
The utility model relates to chemical reaction device, specifically, is that large molecule is produced in a kind of serialization, molecular weight 2000-10000Unsaturated polyether reaction unit.
Background technology
The ethoxylation device of home and abroad main flow is divided into three kinds substantially at present: traditional stirring autoclave reaction unit, gas-liquidContact outer circulation reaction unit, pipe reaction device. Wherein gas-liquid contact type reaction unit is with its security, stability, spiritActive and in the excellent performance of the aspect such as product quality, raw materials consumption, and widely adopt. The continuous ethoxylation mechanism of tubular type byIn being subject to reaction time, product molecule amount size and the industrializing implementation condition restriction cannot be in large molecule polyethers epoxidation processImplement, though therefore tubular type ethoxylation device can be realized indivedual little molecules, the serialization production that mean molecule quantity is less than 500,But can only be applicable to the production of single mole or little mole ethoxylation addition product, cannot be applied to large molecule, mean molecule quantity is largeSynthetic in 2000 ethoxylated polyether class materials. Representative as gas-liquid contact type reaction unit: Italian Puli Si company exploitation, atomizing gas-liquid contact, outer circulation, intermittently operated formula ethoxylation device, occupy absolute dominating in world marketStatus is representative advanced, ripe ethoxylation device.
Ethoxylation is classical polycondensation reaction, specific as follows:
But this device is batch production device, the production efficiency of device is lower, and capacity of equipment is not fully played.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, provides that one can be produced continuously, efficiency is high, and cost is low,Large molecule unsaturated polyether reaction unit is produced in the serialization that can make full use of equipment capacity.
The technical scheme that realizes the employing of the utility model object is: large molecule unsaturated polyether reaction unit is produced in a kind of serialization,It is characterized in that, it comprises: two cover closed circuits of alternate run: first set closed circuit comprises a systemic circulation unit andPartial circulating unit: described first set systemic circulation unit is received by the first valve A1 and first by the recycle stock outlet of main reactorThe recycle stock import of storage A is communicated with, and the recycle stock outlet of the first collector A is by the first circulating pump A and First Heat ExchangerThe recycle stock import of A is communicated with, and the recycle stock outlet of First Heat Exchanger A is by the recycle of the second valve A2 and main reactorMaterial import is communicated with composition; Described first set partial circulating unit passes through the first circulating pump by the recycle stock outlet of the first collector AA is communicated with the recycle stock import of First Heat Exchanger A, the recycle stock outlet of First Heat Exchanger A and following of the first collector ARing material inlet is communicated with composition; The second cover closed circuit comprises a systemic circulation unit and a partial circulating unit: described secondCover systemic circulation unit is connected by the recycle stock import of the 3rd valve B1 and the second collector B by the recycle stock outlet of main reactorLogical, the recycle stock outlet of the second collector B is communicated with the recycle stock import of the second heat exchanger B by the second circulating pump B,The recycle stock outlet of the second heat exchanger B is communicated with composition by the 4th valve B2 with the recycle stock import of main reactor; DescribedThe second cover partial circulating unit is passed through the circulation of the second circulating pump B and the second heat exchanger B by the recycle stock outlet of the second collector BMaterial inlet is communicated with, and the recycle stock outlet of the second heat exchanger B is communicated with the recycle stock import of the second collector B.
Large molecule unsaturated polyether reaction unit is produced in serialization of the present utility model, and owing to adopting two cover closed circuits, every cover followsLoop back path includes a systemic circulation unit and a partial circulating unit, can make two cover closed circuit switchover operations, and main reaction existsIn reactor, carry out continuously, realize and produce continuously unsaturated polyester ether product. Greatly improved ethoxylated polyether reaction core cell-The service efficiency of reactor. Compared with existing batch production method, although increase of investment 10-15%, production capacity will improve35-45%; Due to the lifting of production capacity, the public works such as water, electricity, steam, nitrogen, instrument air consume corresponding reduction, enter oneStep has promoted the competitiveness of product. Have can produce continuously, efficiency is high, cost is low, can make full use of equipment capacity etc. excellentPoint. The serialization that is applicable to the large molecule unsaturated polyether of molecular weight 2000-10000 is produced.
Brief description of the drawings
Fig. 1 is that large molecule unsaturated polyether reaction unit structural representation is produced in a kind of serialization of the present utility model.
Detailed description of the invention
Utilize the embodiment described in accompanying drawing below, the utility model is described in further detail.
With reference to Fig. 1: below by producing unsaturated alcohol polycarboxylate water-reducer monomer polyethers, (mean molecule quantity 2400) is to this practicalityNew type of continuous is produced large molecule unsaturated polyether reaction unit and is further described.
Raw material: oxirane, prenol, methallyl alcohol and solid caustic soda. Described each raw material is easy to get, and is commercially available prod.
Large molecule unsaturated polyether reaction unit is produced in serialization: comprise main reactor, the first collector A, the first circulating pump A,The second heat exchanger A; The second collector B, the second circulating pump B, the second heat exchanger B and control by DCS, realize and automatically switchingValve C, the first valve A1, the second valve A2, the 3rd valve B1, the 4th valve B2, the 5th valve A3 and the 6th valveB3. Each element of described device is the common element in this area. DCS controls and the establishment of program is those skilled in the artKnown technology.
Large molecule unsaturated polyether reaction unit is produced in a kind of serialization of the present utility model, comprising: two cover circulations of alternate runLoop. First set closed circuit comprises a systemic circulation unit and a partial circulating unit: described first set systemic circulation unit byThe recycle stock outlet of main reactor is communicated with the recycle stock import of the first collector A by the first valve A1, and first collectsThe recycle stock outlet of device A is communicated with the recycle stock import of First Heat Exchanger A by the first circulating pump A, First Heat Exchanger ARecycle stock outlet be communicated with composition by the second valve A2 with the recycle stock import of main reactor; Described first set partial circulatingUnit is communicated with the recycle stock import of First Heat Exchanger A by the first circulating pump A by the recycle stock outlet of the first collector A,The recycle stock outlet of First Heat Exchanger A is communicated with composition with the recycle stock import of the first collector A; The second cover closed circuit bagDraw together a systemic circulation unit and a partial circulating unit: the second described cover systemic circulation unit is exported by the recycle stock of main reactorBe communicated with the recycle stock import of the second collector B by the 3rd valve B1, the recycle stock outlet of the second collector B is passed throughThe second circulating pump B is communicated with the recycle stock import of the second heat exchanger B, and the recycle stock outlet of the second heat exchanger B is by the 4thValve B2 is communicated with composition with the recycle stock import of main reactor; The second described cover partial circulating unit following by the second collector BRing material outlet is communicated with the recycle stock import of the second heat exchanger B by the second circulating pump B, the recycle of the second heat exchanger BMaterial outlet is communicated with the recycle stock import of the second collector B.
Use a kind of serialization of the present utility model to produce large molecule unsaturated polyether reaction unit and carry out large molecule unsaturated polyether evenWhen continuousization produced:
1. add continuously the needed material of reaction to two cover closed circuits: raw material proportioning consists of by weight: oxirane0.6 part of 96.5 parts, 3.6 parts of start of chain agent and catalyst; From the charging aperture and the second collector B of the first collector A bottomThe charging aperture of portion adds start of chain agent continuously to two cover closed circuits respectively, from the first circulating pump A outlet line and the second circulating pumpB outlet line adds catalyst continuously to two cover closed circuits respectively, by the 5th valve A3 to first of first set closed circuitIn collector A, add continuously oxirane, add continuously in the second collector B of the second cover closed circuit by the 6th valve B3Enter oxirane, add continuously oxirane by valve C to main reactor;
2. carrying out unsaturated polyether serialization produces: under nitrogen atmosphere, start first set closed circuit and make Matter Transfer, when firstThe temperature of heat exchanger A reaches to 125 DEG C of the required temperature of pre-reaction, opens the 5th valve A3, starts to the first closed circuitIn the first collector A, add continuously oxirane, enter the pre-reaction operation of first set partial circulating unit, need from being dosed to pre-reaction1.5 hours consuming time; Enter after pre-reaction operation, open the first valve A1 and the second valve A2 and enter first set systemic circulation unitOperation, Open valve C adds oxirane to carry out main reaction to main reactor continuously, and reaction heat is withdrawn from by heat exchanger, controls anti-Answer temperature at 105 DEG C-135 DEG C, the main reaction process of first set systemic circulation unit operations takes 3.5 hours; After main reaction finishes,Close the 5th valve A3, the second valve A2 and the first valve A1, first set partial circulating unit continues to have operated unsaturated polyetherThe follow-up slaking of product, be cooled to 90 DEG C, air lift, discharging, purging, need 1.5 hours used times, given birth to by first set closed circuitProduce unsaturated polyether finished product; Meanwhile, carrying out that first set partial circulating unit is reinforced, in intensification, pre-reaction, at nitrogenUnder gas atmosphere, start the second cover closed circuit and make Matter Transfer, when the temperature of the second heat exchanger B reaches to the required temperature of pre-reaction125 DEG C, open the 6th valve B3, start to add continuously oxirane in the second collector B of the second closed circuit, enterThe second cover partial circulating unit pre-reaction operation, from being dosed to pre-reaction required 1.5 hours consuming time, when first set closed circuit master anti-Should complete time, close the first valve A1 and the second valve A2, open the 3rd valve B1 and the 4th valve B2, enter the second cover largeCycling element operation, Open valve C adds oxirane to carry out main reaction to main reactor continuously, and reaction heat is withdrawn from by heat exchanger,Control reaction temperature at 105 DEG C-135 DEG C, the main reaction process of the second cover systemic circulation unit operations takes 3.5 hours; Main reactionAfter end, close the 6th valve B3, the 4th valve B2 and the 3rd valve B1, the second cover partial circulating unit continues to have operated notThe follow-up slaking of saturated polyether product, be cooled to 90 DEG C, air lift, discharging, purging, need 1.5 hours used times, followed by the second coverLoop back path is produced unsaturated polyether finished product; Carry out in main reaction process at the second cover closed circuit, first set partial circulating unit continuesCarry out unsaturated polyester ether product follow-up slaking, be cooled to 90 DEG C, air lift, discharging, purge operations; Two cover closed circuits switchOperation, produces unsaturated polyester ether product continuously.
The follow-up slaking of described unsaturated polyester ether product, be cooled to 90 DEG C, air lift, discharging, purge operations and existing intermittenceThe operating process of formula ethoxylation device is identical. Described start of chain agent is prenol or methallyl alcohol. Described catalysisAgent is solid caustic soda.
Embodiment that large molecule unsaturated polyether reaction unit provides non exhaustive, this area are produced in a kind of serialization of the utility modelTechnical staff is without the scope that still belongs to the protection of the utility model claim with simple modifications that copies of creative work.
Claims (1)
1. a large molecule unsaturated polyether reaction unit is produced in serialization, it is characterized in that, it comprises: two covers of alternate run followLoop back path: first set closed circuit comprises a systemic circulation unit and a partial circulating unit: described first set systemic circulation unitRecycle stock outlet by main reactor is communicated with the recycle stock import of the first collector A by the first valve A1, and first receivesThe recycle stock outlet of storage A is communicated with the recycle stock import of First Heat Exchanger A by the first circulating pump A, First Heat ExchangerThe recycle stock outlet of A is communicated with composition by the second valve A2 with the recycle stock import of main reactor; Described first set is little to followRing element is connected by the recycle stock import of the first circulating pump A and First Heat Exchanger A by the recycle stock outlet of the first collector ALogical, the recycle stock outlet of First Heat Exchanger A is communicated with composition with the recycle stock import of the first collector A; The second cover loops backRoad comprises a systemic circulation unit and a partial circulating unit: the second described cover systemic circulation unit is by the recycle stock of main reactorOutlet is communicated with the recycle stock import of the second collector B by the 3rd valve B1, the recycle stock outlet of the second collector BBe communicated with the recycle stock import of the second heat exchanger B by the second circulating pump B, the recycle stock outlet of the second heat exchanger B is passed throughThe 4th valve B2 is communicated with composition with the recycle stock import of main reactor; The second described cover partial circulating unit is by the second collector BRecycle stock outlet be communicated with the recycle stock import of the second heat exchanger B by the second circulating pump B, the second heat exchanger B followsRing material outlet is communicated with the recycle stock import of the second collector B.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521033241.2U CN205235931U (en) | 2015-02-12 | 2015-12-14 | Unsaturated polyether reaction unit of serialization production macromolecule |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2015100751946 | 2015-02-12 | ||
| CN201510075194.6A CN104592507A (en) | 2015-02-12 | 2015-02-12 | Method for continuously producing macromolecular unsaturated polyether |
| CN201521033241.2U CN205235931U (en) | 2015-02-12 | 2015-12-14 | Unsaturated polyether reaction unit of serialization production macromolecule |
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| Publication Number | Publication Date |
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| CN205235931U true CN205235931U (en) | 2016-05-18 |
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| CN201510075194.6A Pending CN104592507A (en) | 2015-02-12 | 2015-02-12 | Method for continuously producing macromolecular unsaturated polyether |
| CN201521033241.2U Expired - Fee Related CN205235931U (en) | 2015-02-12 | 2015-12-14 | Unsaturated polyether reaction unit of serialization production macromolecule |
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| CN201510075194.6A Pending CN104592507A (en) | 2015-02-12 | 2015-02-12 | Method for continuously producing macromolecular unsaturated polyether |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111013498A (en) * | 2019-12-27 | 2020-04-17 | 江苏奥克化学有限公司 | Ethoxylation reaction device and method |
| CN112076696A (en) * | 2020-09-11 | 2020-12-15 | 吉化集团油脂化工有限公司 | Preparation system and preparation method of polycarboxylate superplasticizer macromonomer raw material initiator |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114195913B (en) * | 2021-12-23 | 2023-08-18 | 广东鲁众华新材料有限公司 | Method for improving flash evaporation effect of carbon five petroleum resin |
-
2015
- 2015-02-12 CN CN201510075194.6A patent/CN104592507A/en active Pending
- 2015-12-14 CN CN201521033241.2U patent/CN205235931U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111013498A (en) * | 2019-12-27 | 2020-04-17 | 江苏奥克化学有限公司 | Ethoxylation reaction device and method |
| CN111013498B (en) * | 2019-12-27 | 2022-07-08 | 江苏奥克化学有限公司 | Ethoxylation reaction device and method |
| CN112076696A (en) * | 2020-09-11 | 2020-12-15 | 吉化集团油脂化工有限公司 | Preparation system and preparation method of polycarboxylate superplasticizer macromonomer raw material initiator |
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| Publication number | Publication date |
|---|---|
| CN104592507A (en) | 2015-05-06 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160518 |
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| CF01 | Termination of patent right due to non-payment of annual fee |