| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 41572 | Applied Catalysis A: General | 2011 | 5 Pages |
Glycerol carbonate was synthesized by transesterification of glycerol with dimethyl carbonate using Mg/Al/Zr mixed oxide base catalysts. A series of Mg/Al/Zr catalysts were prepared with different molar ratios by using co-precipitation method and calcining at different temperatures. The catalysts were characterized by FT-infrared spectroscopy, X-ray diffraction and temperature-programmed desorption of CO2. The transesterification activity depends on the Mg/Al/Zr molar ratio and the catalyst with Mg/Al/Zr molar ratio of 3:1:1 showed excellent activity. The catalyst activity depends on the pretreatment temperature, structure and basicity of the catalysts. The transesterification activity of catalysts was correlated with the structural aspects and the amount of basicity. Various parameters such as reaction temperature, catalyst concentration and molar ratio of dimethyl carbonate to glycerol were studied to optimize the reaction conditions.
Graphical abstractSynthesis of glycerol carbonate by transesterification of glycerol with dimethyl carbonate over Mg/Al/Zr catalysts.Figure optionsDownload full-size imageDownload high-quality image (305 K)Download as PowerPoint slideHighlights► Mg/Al/Zr mixed oxides are efficient catalysts for glycerol transesterification. ► The yield of glycerol carbonate varies with the basicity of the catalysts. ► Basicity relate to mole ratio of metal ions and pretreatment temperature. ► The glycerol carbonate yield also depends on reaction parameters.
