A facile synthesis of glycerol carbonate by transesterification of glycerol with dimethyl carbonate: ceria based catalysts
Document title: A facile synthesis of glycerol carbonate by transesterification of glycerol with dimethyl carbonate: ceria based catalysts
Journal: Journal of the Mexican Chemical Society
Database: PERIÓDICA
System number: 000437740
ISSN: 1870-249X
Authors: 1
1
1
Institutions: 1HMS Institute of Technology, Chemistry Research Laboratory, Tumakuru, Karnataka. India
Year:
Season: Oct-Dic
Volumen: 62
Number: 4
Country: México
Language: Inglés
Document type: Artículo
Approach: Experimental, aplicado
Spanish abstract Se prepararon catalizadores de base sólida como Ceria-Zirconia-Magnesia con diferentes proporciones molares de magnesio mediante el método de impregnación y se caracterizaron por análisis de CO2-TPD, PXRD, FT-IR e ICP-OES. La actividad catalítica de los catalizadores se probó en la transesterificación en fase líquida de glicerol con carbonato de dimetilo para sintetizar carbonato de glicerol. La optimización de las condiciones de reacción se llevó a cabo variando la relación molar de los reactivos, la temperatura y el tiempo. El mayor rendimiento (97 %) de carbonato de glicerol se obtuvo a una relación molar reactiva de 1:3 a 120 °C en 6 h. También se realizó un estudio de la reutilización y reactivación del catalizador de base sólida. Se propone un mecanismo catalítico básico adecuado para la formación de carbonato de glicerol
English abstract Solid base catalysts such as Ceria-Zirconia-Magnesia with different mole ratio of magnesium were prepared by impregnation method and characterized by CO2-TPD, PXRD, FT-IR and ICP-OES analysis. The catalytic activity of the catalysts was tested in the liquid phase transesterification of glycerol with dimethyl carbonate to synthesise glycerol carbonate. Optimization of reaction condition was carried out by varying the molar ratio of the reactants, temperature and time. The highest yield (97 %) of glycerol carbonate was obtained at a reactant molar ratio of 1:3 at 120 °C in 6 h. Study of reusability and reactivation of solid base catalyst was also taken up. A suitable base catalysed mechanism for the formation of glycerol carbonate is proposed
Disciplines: Química
Keyword: Fisicoquímica y química teórica,
Catalizadores,
Cerio,
Zirconia,
Magnesio,
Glicerol,
Transesterificación
Keyword: Physical and theoretical chemistry,
Catalysts,
Cerium,
Zirconia,
Magnesium,
Glycerol,
Transesterification
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