CN204661588U - A kind of device of continuous prodution vinylene carbonate - Google Patents
A kind of device of continuous prodution vinylene carbonate Download PDFInfo
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- CN204661588U CN204661588U CN201520148081.XU CN201520148081U CN204661588U CN 204661588 U CN204661588 U CN 204661588U CN 201520148081 U CN201520148081 U CN 201520148081U CN 204661588 U CN204661588 U CN 204661588U
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Abstract
The utility model discloses a kind of device of continuous prodution vinylene carbonate.Production equipment comprises tubular reactor (1), equipment for separating liquid from solid (2), knockout tower (3), partial condenser (4), condenser (5), secondary equipment for separating liquid from solid (6), equipment room connection line, display and control instruments and annex; Production method is that raw material monochloroethylene carbonate and triethylamine enter tubular reactor (1) in proportion continuously; Reaction solution enters knockout tower (3) after equipment for separating liquid from solid (2) removes the solid phase of generation; The vinylene carbonate mixing gas that tower top distillates unreacted triethylamine and reaction generation enters partial condenser (4); A condensation obtains vinylene carbonate, and a part returns knockout tower (3) as phegma, and another part is product; Triethylamine enters condenser (5) condensation Posterior circle retrieval system and again participates in reaction; Knockout tower (3) tower bottoms circulation retrieval system participates in reaction again.
Description
Technical field
The utility model relates to a kind of preparation facilities of Chemicals, particularly relates to a kind of device of continuous prodution vinylene carbonate.
Background technology
Vinylene carbonate is a kind of important lithium-ion battery electrolytes additive.Chlorocarbonic acid vinyl acetate can generate vinylene carbonate with triethylamine generation elimination reaction; In this reaction process, the hydrogenchloride generated can react with the triethylamine existed in a large number and generate triethylamine hydrochloride, vinylene carbonate is the ester class that a kind of activity is strong, a kind of dark thick shape material being difficult to be separated can be mixed to form with the triethylamine hydrochloride that dehydrochlorination reaction generates by polymerization reaction take place under high temperature, object product vinylene carbonate is surrounded by sticky mass, is unfavorable for that later separation is more and acquires high-purity product.For obtaining high purity vinylene carbonate as much as possible, people add solvent and are easy to be separated to make product in reaction system; Add stopper to be polymerized to suppress product.
At present, the production process that chlorocarbonic acid vinyl acetate produces methyl ethyl carbonate alkene ester with triethylamine reaction is the periodical operation of autoclave dropwise reaction, and production efficiency is low, and quality product not easily ensures, raw material availability is not high.Develop a kind of method of continuous prodution vinylene carbonate, enhance productivity, improve the quality of products, improve raw material availability significant.
Summary of the invention
The purpose of this utility model is to provide a kind of device being raw material continuous prodution vinylene carbonate with chlorocarbonic acid vinyl acetate and triethylamine, this device adopts the tubular reactor establishing turbulent element in peripheral hardware chuck, mass-and heat-transfer is effective, reaction mass contact fully, speed of response is fast, good product quality; The process implementation continuous prodution producing vinylene carbonate with chlorocarbonic acid vinyl acetate and triethylamine reaction can be made.
The technical solution of the utility model is as follows:
A method for continuous prodution vinylene carbonate, comprises following production equipment and production method:
Production equipment comprises: tubular reactor, equipment for separating liquid from solid, knockout tower, partial condenser, condenser, equipment room connection line, display and control instruments and annex; Tubular reactor be with or without the blank pipe of chuck or in pipe continuously or interruption dynamic and static hybrid element material being played to perturbation action is set; Go out tubular reactor to be connected with equipment for separating liquid from solid, knockout tower, knockout tower is provided with rectifying section; Before or after equipment for separating liquid from solid is arranged on knockout tower, or before and after knockout tower, all equipment for separating liquid from solid is set.
The device of described a kind of continuous prodution vinylene carbonate, arranges between described tubular reactor and equipment for separating liquid from solid or does not arrange reaction solution tundish; Arrange between equipment for separating liquid from solid and knockout tower or parting liquid tundish are not set.
The device of described a kind of continuous prodution vinylene carbonate, equipment for separating liquid from solid is the combination of centrifugal separating device or filtering separation device or settling separation device and these devices.
the utility model has the advantages that:
1. can make the process implementation continuous prodution producing vinylene carbonate with chlorocarbonic acid vinyl acetate and triethylamine reaction;
2. do not pursue a transformation efficiency of raw material, unconverted raw material retrieval system participates in reaction again, and turndown ratio is large;
3. adopt the tubular reactor establishing turbulent element in peripheral hardware chuck, mass-and heat-transfer is effective, and fully, speed of response is fast, good product quality in reaction mass contact;
4. reactants separate adopts tower charging, only has distillation operation, heats up in a steamer without carrying the purity that operation preferentially can ensure overhead product.
Accompanying drawing explanation
The production equipment sketch that Fig. 1 is is raw material continuous prodution vinylene carbonate with chlorocarbonic acid vinyl acetate and triethylamine.
Embodiment
Below in conjunction with accompanying drawing embodiment, the utility model is described in detail.
Embodiment 1
Continuous prodution vinylene carbonate production equipment comprises: tubular reactor 1, equipment for separating liquid from solid 2, knockout tower 3, partial condenser 4, condenser 5, secondary equipment for separating liquid from solid 6, equipment room connection line, control instruments and annex; Tubular reactor 1 straight length is commercially available static mixer, and curved tube section is blank pipe.
Continuous prodution vinylene carbonate production method comprises: raw material chlorocarbonic acid vinyl acetate and triethylamine enter the flowing of tubular reactor limit, limit mixing, limit reaction, limit heat transfer by theoretical mol ratio; The material going out tubular reactor enters the triethylamine hydrochloride that equipment for separating liquid from solid deviates from generation, takes off the liquid phase admittedly and enters knockout tower by tower reactor; Tower top distillates the vinylene carbonate mixing steam of unreacted triethylamine and reaction generation, and a condensation obtains vinylene carbonate in order, and a part is as knockout tower trim the top of column, and another part is as thick product; Time condensation obtains triethylamine retrieval system and again participates in reaction; Knockout tower tower bottoms is unconverted chlorocarbonic acid vinyl acetate and part vinylene carbonate and a small amount of triethylamine hydrochloride, and retrieval system participates in reaction again.
Embodiment 2
Embodiment 2 is substantially the same manner as Example 1, and difference is in raw material chlorocarbonic acid vinyl acetate (or triethylamine), to add stopper in advance, then converges with triethylamine (or chlorocarbonic acid vinyl acetate) and enters tubular reactor.
Embodiment 3
Embodiment 3 is substantially the same manner as Example 1, difference is that one raw material is first mixed into the solvent of regulation ratio before entering the reactor, another strand of raw material is mixed into stopper before entering the reactor in advance, isolate after solid phase through equipment for separating liquid from solid after two strands of raw materials enter reactor reaction, increase solvent recovery operation, the reaction solution taken off after solid and recycling design enters knockout tower.
Embodiment 4
Embodiment 4 is substantially the same manner as Example 1, and difference is all to fill chemical filler in tubular reactor straight length and curved tube section.
Claims (3)
1. the device of a continuous prodution vinylene carbonate, it is characterized in that, described device comprises: tubular reactor (1), equipment for separating liquid from solid (2), knockout tower (3), partial condenser (4), condenser (5), secondary equipment for separating liquid from solid (6), equipment room connection line, control instruments and annex; Tubular reactor (1) be with or without the blank pipe of chuck or in pipe continuously or interruption dynamic and static perturbation element material being played to perturbation action is set; Go out tubular reactor (1) to be connected with equipment for separating liquid from solid (2), knockout tower (3), knockout tower (3) is provided with rectifying section; Before or after equipment for separating liquid from solid (2) is arranged on knockout tower (3), or before and after knockout tower (3), all equipment for separating liquid from solid is set.
2. the device of a kind of continuous prodution vinylene carbonate according to claim 1, is characterized in that, arranges or do not arrange reaction solution tundish between described tubular reactor (1) and equipment for separating liquid from solid (2); Arrange between equipment for separating liquid from solid (2) and knockout tower (3) or parting liquid tundish are not set.
3. the device of a kind of continuous prodution vinylene carbonate according to claim 1, is characterized in that described equipment for separating liquid from solid is the combination of centrifugal separating device or filtering separation device or settling separation device and these devices.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520148081.XU CN204661588U (en) | 2015-03-17 | 2015-03-17 | A kind of device of continuous prodution vinylene carbonate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520148081.XU CN204661588U (en) | 2015-03-17 | 2015-03-17 | A kind of device of continuous prodution vinylene carbonate |
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| CN204661588U true CN204661588U (en) | 2015-09-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520148081.XU Active CN204661588U (en) | 2015-03-17 | 2015-03-17 | A kind of device of continuous prodution vinylene carbonate |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112397781A (en) * | 2020-11-17 | 2021-02-23 | 徐文忠 | Lithium battery car electrolyte additive |
| CN116003374A (en) * | 2022-12-16 | 2023-04-25 | 山东惟普新能源有限公司 | Method for synthesizing immediately separated vinylene carbonate |
-
2015
- 2015-03-17 CN CN201520148081.XU patent/CN204661588U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112397781A (en) * | 2020-11-17 | 2021-02-23 | 徐文忠 | Lithium battery car electrolyte additive |
| CN112397781B (en) * | 2020-11-17 | 2022-06-07 | 徐文忠 | Preparation method of vinylene carbonate additive for lithium battery car electrolyte |
| CN116003374A (en) * | 2022-12-16 | 2023-04-25 | 山东惟普新能源有限公司 | Method for synthesizing immediately separated vinylene carbonate |
| CN116003374B (en) * | 2022-12-16 | 2024-03-29 | 山东惟普新能源有限公司 | Method for synthesizing immediately separated vinylene carbonate |
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