An Efficient and Stable Ionic Liquid System for Synthesis of Ethylene Glycol via Hydrolysis of Ethylene Carbonate

›› 2010, Vol. 18 ›› Issue (6): 962-966.

• CATALYSIS, KINETICS AND REACTORS • Previous Articles Next Articles

An Efficient and Stable Ionic Liquid System for Synthesis of Ethylene Glycol via Hydrolysis of Ethylene Carbonate

MENG Zhenying^1,2, SUN Jian¹, WANG Jinquan¹, ZHANG Jianxin³, FU Zengzeng⁴, CHENG Weiguo¹, ZHANG Xiangping¹

1. State Key Laboratory of Multiphase Complex System, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China;
2. Graduate University of Chinese Academy of Sciences, Beijing 100049, China;
3. College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475001, China;
4. School of Chemical and Environmental Engineering, China University of Mining & Technology

Received:2010-04-20 Revised:2010-06-13 Online:2010-12-28 Published:2010-12-28
Supported by:
Supported by the National High Technology Research and Development Program of China(2006AA06Z317);National Natural Science Foundation of China(20876162);National Basic Research Program of China(2009CB219901);National Key Technology Research and Development Program(2008BAF33B04);National Science Fund of China(21006117);Science and Technology Project of Beijing(Y090081135)

An Efficient and Stable Ionic Liquid System for Synthesis of Ethylene Glycol via Hydrolysis of Ethylene Carbonate

孟震英^1,2, 孙剑¹, 王金泉¹, 张建新³, 付增增⁴, 成卫国¹, 张香平¹

1. State Key Laboratory of Multiphase Complex System, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China;
2. Graduate University of Chinese Academy of Sciences, Beijing 100049, China;
3. College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475001, China;
4. School of Chemical and Environmental Engineering, China University of Mining & Technology

通讯作者: ZHANG Xiangping, E-mail: xpzhang@home.ipe.ac.cn
基金资助:
Supported by the National High Technology Research and Development Program of China(2006AA06Z317);National Natural Science Foundation of China(20876162);National Basic Research Program of China(2009CB219901);National Key Technology Research and Development Program(2008BAF33B04);National Science Fund of China(21006117);Science and Technology Project of Beijing(Y090081135)

Abstract

Abstract: An ionic liquid system of [Bmim]X/[Bmim]OH(X=Cl,BF₄,and PF₆,) was developed for the hydroly-sis of ethylene carbonate to ethylene glycol. The important parameters,such as the variety of ionic liquids,molar ratio of [Bmim]X to [Bmim]OH,amount of ionic liquid,molar ratio of water to ethylene carbonate,reaction temperature,pressure and reaction time,were investigated systematically. Excellent yield(>93%) and high selectivity(99.5%) of ethylene glycol were achieved. Under the optimum reaction conditions,the ionic liquid system could be reused at least five times and the selectivity of ethylene glycol remained higher than 99.5%.

Key words: ethylene carbonate, ethylene glycol, hydrolysis, ionic liquids, catalysis

摘要： An ionic liquid system of [Bmim]X/[Bmim]OH(X=Cl,BF₄,and PF₆,) was developed for the hydroly-sis of ethylene carbonate to ethylene glycol. The important parameters,such as the variety of ionic liquids,molar ratio of [Bmim]X to [Bmim]OH,amount of ionic liquid,molar ratio of water to ethylene carbonate,reaction temperature,pressure and reaction time,were investigated systematically. Excellent yield(>93%) and high selectivity(99.5%) of ethylene glycol were achieved. Under the optimum reaction conditions,the ionic liquid system could be reused at least five times and the selectivity of ethylene glycol remained higher than 99.5%.

关键词: ethylene carbonate, ethylene glycol, hydrolysis, ionic liquids, catalysis

MENG Zhenying, SUN Jian, WANG Jinquan, ZHANG Jianxin, FU Zengzeng, CHENG Weiguo, ZHANG Xiangping. An Efficient and Stable Ionic Liquid System for Synthesis of Ethylene Glycol via Hydrolysis of Ethylene Carbonate[J]. , 2010, 18(6): 962-966.

孟震英, 孙剑, 王金泉, 张建新, 付增增, 成卫国, 张香平. An Efficient and Stable Ionic Liquid System for Synthesis of Ethylene Glycol via Hydrolysis of Ethylene Carbonate[J]. , 2010, 18(6): 962-966.

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An Efficient and Stable Ionic Liquid System for Synthesis of Ethylene Glycol via Hydrolysis of Ethylene Carbonate

An Efficient and Stable Ionic Liquid System for Synthesis of Ethylene Glycol via Hydrolysis of Ethylene Carbonate

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