CN102746268A - Process for synthesizing carbonic acid butane ester - Google Patents
Process for synthesizing carbonic acid butane ester Download PDFInfo
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- CN102746268A CN102746268A CN2012102605688A CN201210260568A CN102746268A CN 102746268 A CN102746268 A CN 102746268A CN 2012102605688 A CN2012102605688 A CN 2012102605688A CN 201210260568 A CN201210260568 A CN 201210260568A CN 102746268 A CN102746268 A CN 102746268A
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- butylene
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Abstract
The invention discloses a process for synthesizing carbonic acid butane ester. The process is characterized in that: a synthetic reaction is performed on epoxy butane and carbon dioxide serving as raw materials under the action of a catalyst. Compared with the prior art, the process has the characteristics of mild reaction conditions, short reaction time, high yield and easiness for separating a product.
Description
Technical field
The present invention relates to the butylene production technical field, be specifically related to a kind of butylene synthesis technique.
Background technology
At present, the technology of production butylene (containing 1,2 butylene oxide ring and 2,3 butylene oxide rings) has long reaction time more, and yield is low, and product is not easy to isolating defective.
Summary of the invention
The object of the invention is exactly the defective that exists to prior art, and a kind of butylene synthesis technique is provided.
Its technical scheme is: technology is to be raw material with butylene oxide ring and carbonic acid gas; Under the effect of catalyzer, carry out building-up reactions, its technical process is following: butylene oxide ring and catalyzer get into the reaction of reaction well heater internal heating respectively according to 1: 0.5～2 ratio and after 70～150 ℃, get into first reactor drum by first reactor head; Carbonic acid gas passes through high-pressure buffering pot; Get into first reactor drum; Make in first reactor drum carbonic acid gas excessive, and control first reactor pressure and be 1～8Mpa stably, excessive carbon dioxide and butylene oxide ring; Reaction 0.5h～5h generates the butylene material, and emits a large amount of heat under the effect of first catalyst in reactor; By a part of butylene material of first reactor bottom output through the cooling of first water cooler after, together join once more with circulation fluid form and butylene oxide ring and catalyzer again and react in the well heater; Another part butylene material by the output of first reactor bottom; Get into by second reactor bottom and to carry out second time reaction in second reactor drum; Abundant reacted butylene material; Be the thick product of butylene by the output of second reactor head, it is temporary that the thick product of butylene gets into the bullion jar, and the thick product stable feed of the butylene in the bullion jar is gone into thin-film evaporator; Under reduced pressure make the thick product concentration and evaporation of butylene, save as qualified butylene elaboration through sending into the elaboration tank storage after the cooling of second water cooler then.
The present invention has the reaction conditions gentleness compared with prior art, and the reaction times is short, and yield is high, and product is easy to isolating characteristics.
Figure of description
Fig. 1 is the process flow sheet of an embodiment of the present invention.
Embodiment
Embodiment 1; With reference to accompanying drawing 1; A kind of butylene synthesis technique; Technology is to be raw material with butylene oxide ring and carbonic acid gas, under the effect of catalyzer, carries out building-up reactions, and its technical process is following: butylene oxide ring and catalyzer get into the reaction of reaction well heater internal heating respectively according to 1: 0.5 ratio and after 90 ℃, get into first reactor drum by first reactor head; Carbonic acid gas passes through high-pressure buffering pot; Get into first reactor drum; Make in first reactor drum carbonic acid gas excessive, and control first reactor pressure and be 5Mpa stably, excessive carbon dioxide and butylene oxide ring; Reaction 3h generates the butylene material under the effect of first catalyst in reactor, and emits a large amount of heat; By a part of butylene material of first reactor bottom output through the cooling of first water cooler after, together join once more with circulation fluid form and butylene oxide ring and catalyzer again and react in the well heater; Another part butylene material by the output of first reactor bottom; Get into by second reactor bottom and to carry out second time reaction in second reactor drum; Abundant reacted butylene material; Be the thick product of butylene by the output of second reactor head, it is temporary that the thick product of butylene gets into the bullion jar, and the thick product stable feed of the butylene in the bullion jar is gone into thin-film evaporator; Under reduced pressure make the thick product concentration and evaporation of butylene, save as qualified butylene elaboration through sending into the elaboration tank storage after the cooling of second water cooler then.
Embodiment 2; With reference to accompanying drawing 1; A kind of butylene synthesis technique; Technology is to be raw material with butylene oxide ring and carbonic acid gas, under the effect of catalyzer, carries out building-up reactions, and its technical process is following: butylene oxide ring and catalyzer get into the reaction of reaction well heater internal heating respectively according to 1: 2 ratio and after 150 ℃, get into first reactor drum by first reactor head; Carbonic acid gas passes through high-pressure buffering pot; Get into first reactor drum; Make in first reactor drum carbonic acid gas excessive, and control first reactor pressure and be 8Mpa stably, excessive carbon dioxide and butylene oxide ring; Reaction 5h generates the butylene material under the effect of first catalyst in reactor, and emits a large amount of heat; By a part of butylene material of first reactor bottom output through the cooling of first water cooler after, together join once more with circulation fluid form and butylene oxide ring and catalyzer again and react in the well heater; Another part butylene material by the output of first reactor bottom; Get into by second reactor bottom and to carry out second time reaction in second reactor drum; Abundant reacted butylene material; Be the thick product of butylene by the output of second reactor head, it is temporary that the thick product of butylene gets into the bullion jar, and the thick product stable feed of the butylene in the bullion jar is gone into thin-film evaporator; Under reduced pressure make the thick product concentration and evaporation of butylene, save as qualified butylene elaboration through sending into the elaboration tank storage after the cooling of second water cooler then.
Claims (1)
1. butylene synthesis technique; It is characterized in that: technology is to be raw material with butylene oxide ring and carbonic acid gas; Under the effect of catalyzer, carry out building-up reactions, its technical process is following: butylene oxide ring and catalyzer get into the reaction of reaction well heater internal heating respectively according to 1: 0.5～2 ratio and after 70～150 ℃, get into first reactor drum by first reactor head; Carbonic acid gas passes through high-pressure buffering pot; Get into first reactor drum; Make in first reactor drum carbonic acid gas excessive, and control first reactor pressure and be 1～8Mpa stably, excessive carbon dioxide and butylene oxide ring; Reaction 0.5h～5h generates the butylene material, and emits a large amount of heat under the effect of first catalyst in reactor; By a part of butylene material of first reactor bottom output through the cooling of first water cooler after, together join once more with circulation fluid form and butylene oxide ring and catalyzer again and react in the well heater; Another part butylene material by the output of first reactor bottom; Get into by second reactor bottom and to carry out second time reaction in second reactor drum; Abundant reacted butylene material; Be the thick product of butylene by the output of second reactor head, it is temporary that the thick product of butylene gets into the bullion jar, and the thick product stable feed of the butylene in the bullion jar is gone into thin-film evaporator; Under reduced pressure make the thick product concentration and evaporation of butylene, save as qualified butylene elaboration through sending into the elaboration tank storage after the cooling of second water cooler then.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102605688A CN102746268B (en) | 2012-07-26 | 2012-07-26 | Process for synthesizing carbonic acid butane ester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102605688A CN102746268B (en) | 2012-07-26 | 2012-07-26 | Process for synthesizing carbonic acid butane ester |
Publications (2)
| Publication Number | Publication Date |
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| CN102746268A true CN102746268A (en) | 2012-10-24 |
| CN102746268B CN102746268B (en) | 2013-12-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012102605688A Active CN102746268B (en) | 2012-07-26 | 2012-07-26 | Process for synthesizing carbonic acid butane ester |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103980246A (en) * | 2014-05-21 | 2014-08-13 | 沈阳化工大学 | Production method for preparing propylene (ethylene) carbonate from carbon dioxide and propylene oxide (ethylene oxide) through tubular reaction |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101092365A (en) * | 2007-06-29 | 2007-12-26 | 山东石大胜华化工股份有限公司 | Technical method for associated producing carbonic allyl ester, methyl carbonate, and propylene glycol |
| CN201665643U (en) * | 2010-04-13 | 2010-12-08 | 东营石大胜华新材料有限公司 | Production equipment of methyl ethyl carbonate |
-
2012
- 2012-07-26 CN CN2012102605688A patent/CN102746268B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101092365A (en) * | 2007-06-29 | 2007-12-26 | 山东石大胜华化工股份有限公司 | Technical method for associated producing carbonic allyl ester, methyl carbonate, and propylene glycol |
| CN201665643U (en) * | 2010-04-13 | 2010-12-08 | 东营石大胜华新材料有限公司 | Production equipment of methyl ethyl carbonate |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103980246A (en) * | 2014-05-21 | 2014-08-13 | 沈阳化工大学 | Production method for preparing propylene (ethylene) carbonate from carbon dioxide and propylene oxide (ethylene oxide) through tubular reaction |
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| CN102746268B (en) | 2013-12-11 |
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Denomination of invention: Synthesis process of butene carbonate Effective date of registration: 20211230 Granted publication date: 20131211 Pledgee: Shenghua new energy technology (Dongying) Co.,Ltd. Pledgor: SHINGHWA CHEMICAL Corp. Registration number: Y2021980017154 |
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Date of cancellation: 20220406 Granted publication date: 20131211 Pledgee: Shenghua new energy technology (Dongying) Co.,Ltd. Pledgor: SHINGHWA CHEMICAL Corp. Registration number: Y2021980017154 |