Journal of Thermodynamics & Catalysis
Open Access

Department of Health Sciences, Central Michigan University, Michigan, United States

Publications

• Research Article   
  SiO₂ Immobilized Imidazolium Ionic Liquid as Acid Catalysts for Diacetins and Triacetins Synthesis in Glycerol Esterification
  Author(s): Yong Beom Park and Palraj Kasinathan*
  
  Allyimidazolium based Bronsted acid ionic liquids with triflate ([ASBI][TfO]) and sulphate ([ASBI][HSO4]) anions, and it’s lewis acid derivatives ([ASCBI][TfO]) ([ASCBI][HSO4 ]) were synthesized to immobilize covalently on silica via anchoring thiol (-SH) functional group. The surface characterization of these silica immobilized ionic liquids was done by FTIR, TGA, elemental analysis, N2 surface area and acidity measurements. These high acidity SiO2 immobilized acid ionic liquids were used as bronsted and lewis acid catalysts in the esterification of glycerol with acetic acid, and found to have high selectivity for Diacetin (DAG) and Triacetins (TAG) compared with other established heterogeneous acid catalysts with excellent recyclability. To investigate the selectivity towards 1,3 diacetins and 1,2 diacetins, the acetylation reaction was studied a.. View More»
  DOI: 10.35248/2157-7544.22.13.293

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