화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of Industrial and Engineering Chemistry, Vol.28, 334-343, August, 2015
DOI10.1016/j.jiec.2015.03.012  Export Citation
KNO3/CaO as cost-effective heterogeneous catalyst for the synthesis of glycerol carbonate from glycerol and dimethyl carbonate
Keke Hu1, Huajun Wang1, 2, †, Yihua Liu1, and Chao Yang1
  • 1School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, PR China
  • 2Key Laboratory for Large-Format Battery Materials and System, Ministry of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, PR China
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Various heterogeneous KNO3/CaO catalysts with different KNO3 loadings are prepared and used for the synthesis of glycerol carbonate from glycerol and dimethyl carbonate. It is found that the basicity of KNO3/CaO catalyst depends on the KNO3 loading and calcination temperature. Under the dimethyl carbonate/glycerol molar ratio of 3.0, reaction temperature of 70 8C, and reaction time of 2 h, the glycerol conversion for the fresh KNO3/CaO(15%, 700) catalyst can reach 99.23%. Recycling experiments reveal that 94.95% of glycerol conversion can be obtained at the fifth reuse for the recovered KNO3/CaO(15%, 700), which is much higher than that of unmodified CaO.
Keywords:Glycerol;Glycerol carbonate;Transesterification;Calcium oxide;Potassium nitrate
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