Synthesis of glycerol carbonate from glycerol and dimethyl carbonate using various metal oxides catalyst
- Synthesis of glycerol carbonate from glycerol and dimethyl carbonate using various metal oxides catalyst
- 피델리스 허버트슨; 김창수; 안병성; 이상득; 이현주
- glycerol carbonate; dimethyl carbonate; glycerol; metal oxides catalyst
- Issue Date
- 245th ACS National Meeting
- -The CaO-catalyzed transesterification of DMC by glycerol was found to proceed in a homogeneous way when the DMC/glycerol molar ration less than 2. Above the molar ration 2, heterogeneous catalyst also seems to play an important role in the reaction. An active species was isolated from the reaction mixture and characterized as Ca(C3H7O3)(OCO2CH3) by means of elemental and spectroscopic analysis.
-The activity of the prepared Mg-La catalyst depends on the molar ratio of Mg/La, kind of precipitating agent and the calcination temperature. It was found that the maximum balance between the surface area and the lanthanum content was an important factor in obtaining high catalytic activity.
-A ratio of Mg/La = 3/1, KOH/K2CO3 as the mixed precipitating agent, and a calcination temperature between 650 – 720 °C were the conditions that led to the best Mg-La mixed oxide catalyst with the highest catalytic activity for the transesterfication of DMC with glycerol.
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