Supercharge Your Innovation With Domain-Expert AI Agents!

Application of porous MgO catalyst in synthesis of vinylethylene carbonate

A technology of ethylene ethylene carbonate and catalyst, which is applied in the application field of porous MgO catalyst in synthesizing ethylene ethylene carbonate, can solve the problems of difficult separation and recovery of catalyst, large amount of catalyst used, low product yield, etc. Remarkable performance, short response time and reduced dosage

Active Publication Date: 2019-03-19
苏州祺添新材料股份有限公司
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] The technical problem to be solved in the present invention is to provide a solution for the problems of large amount of catalyst used in the process of transesterification of dimethyl carbonate and butylene glycol to synthesize ethylene carbonate, difficulty in separation and recovery of the catalyst, and low product yield. A kind of simple operation, high catalytic efficiency, easy recovery of catalyst, good catalyst reusability, the method for the synthesis of ethylene carbonate with low production cost

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Application of porous MgO catalyst in synthesis of vinylethylene carbonate
  • Application of porous MgO catalyst in synthesis of vinylethylene carbonate

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0024] The porous MgO catalyst was prepared as follows:

[0025] (1) In a beaker, add 1 g of polyethylene oxide-polypropylene oxide-polyethylene oxide (chemical formula is (C 2 H 4 O) 106 (C 3 H 6 O) 70 (C 2 H 4 O) 106 ) was dissolved in absolute ethanol, followed by adding 3g Mg(NO 3 ) 2 ·6H 2 O and 3g of phenolic resin, stirred for 2h to make them fully contact, then coated on glass, transferred to a 30°C thermostat for 12h, scraped off the film, transferred to a tube furnace, N 2 Bake at 600 °C for 6 h under the atmosphere, bring it to room temperature, and then switch the gas to O 2 , and heated to 350 °C for 2 h to obtain porous MgO-1.

[0026] (2) 1 g polyethylene oxide-polypropylene oxide-polyethylene oxide (chemical formula is (C 2 H 4 O) 106 (C 3 H 6 O) 70 (C 2 H 4 O) 106 ) was dissolved in absolute ethanol, followed by adding 5g Mg(NO 3 ) 2 ·6H 2 O and 7g of phenolic resin, stirred for 2h to make them fully contact, then coated on glass, trans...

Embodiment 1

[0031] 10mL of dimethyl carbonate, 10mL of 1-butene-3,4-diol and 1.04g of MgO-1 were successively added to the flask, put the flask into an oil bath, heated with magnetic stirring, and heated to 100°C, at this temperature The reaction was carried out for 4 hours. After cooling to room temperature, the reaction solution was centrifuged and analyzed. The selectivity of ethylene ethylene carbonate was 99.1%, and the yield was 64.1%.

Embodiment 2

[0033] 19mL of dimethyl carbonate, 10mL of 1-butene-3,4-diol and 0.1g of MgO-1 were successively added to the flask, the flask was placed in an oil bath, heated with magnetic stirring, heated to 140°C, at this temperature The reaction was carried out for 8 hours. After cooling to room temperature, the reaction solution was centrifuged and analyzed. The selectivity of ethylene ethylene carbonate was 98.7% and the yield was 24.5%.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides application of a porous MgO catalyst in synthesis of vinylethylene carbonate. According to a method, dimethyl carbonate, 1-butene-3,4-diol and the porous MgO catalyst are simultaneously added into a reaction system so as to react at 100-140 DEG C for 1-8 hours; and after the reaction is finished, the catalyst is filtered and washed and then can be repeated used. The method is easy in operation, high in catalytic efficiency and good in reuse property, and the production cost can be effectively lowered.

Description

technical field [0001] The invention relates to the application of a porous oxide catalyst in the transesterification reaction, in particular to the application of a porous MgO catalyst in the synthesis of ethylene ethylene carbonate. Background technique [0002] Ethylene ethylene carbonate (VEC) is a colorless and transparent liquid at room temperature and is a special carbonate. Ethylene ethylene carbonate has a boiling point of 237°C / 733 mmHg (1 it.) and a flash point of 96°C. [0003] Vinylene carbonate (VC) is a film-forming additive that has been put into use and has good performance. However, the decomposition of VC in batteries is accompanied by CO 2 release, which is not conducive to the formation of the electrode interface film. Compared with VC, ethylene ethylene carbonate (VEC) has a more stable structure, so it has attracted the attention of researchers. The C=C double bond in VEC makes it have higher reducing ability, and its reduction potential is 1.0V (vs...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C07D317/36B01J21/10
CPCC07D317/36B01J21/10B01J37/0018B01J35/60
Inventor 傅人俊薛冰
Owner 苏州祺添新材料股份有限公司
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com