Mg-Al-O-t-Bu hydrotalcite as an efficient catalyst for the transesterification of dimethyl carbonate with ethanol |
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| Authors: | Fuming Mei Exiang Chen Guangxing Li Aiqing Zhang |
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| Affiliation: | (1) Department of Chemistry and Chemical Engineering, Huazhong University of Science & Technology, Wuhan, Hubei, 430074, PR China;(2) Key Laboratory of Catalysis and Materials Science of the State Ethnic Affairs Commission & Ministry of Education, Hubei Province, South-Central University for Nationalities, Wuhan, 430074, PR China |
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| Abstract: | Mg-Al-O-t-Bu hydrotalcite was synthesized and characterized by XRD, FT-IR and TGA-DTA. It was proved to be an active heterogeneous catalyst for the transesterification of dimethyl carbonate (DMC) with ethanol. When the reaction was carried out over Mg-Al-O-t-Bu hydrotalcite at 80°C, 7 h, molar ratio of ethanol to DMC 5:1, 1.0 wt.% of catalyst, the conversion of DMC was 86.4%, the selectivity to diethyl carbonate (DEC) was 61.2%. This heterogeneous catalyst could be used 5 times without loss of its activity. |
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| Keywords: | Mg-Al hydrotalcite dimethyl carbonate diethyl carbonate ethyl methyl carbonate transesterification |
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