Role of Calcination Temperature on Isosorbide Production from Sorbitol Dehydration over the Catalyst Derived from Ce(IV) Sulfate

Isosorbide is a multi-purpose chemical that can be produced from renewable resources. Specifically, it has been investigated as replacement for toxic bisphenol A (BPA) in the production of polycarbonate (PC). In this study, synthesis isosorbide by sorbitol dehydration using cerium-based catalyst derived calcined cerium (IV) sulfate (300°C, 400°C, 450°C, 500°C, and 650°C) was investigated. The reaction occurred high-pressure reactor containing nitrogen gas. Advanced instrumental techniques were applied to analyze characteristics catalyst. results showed catalysts demonstrated different crystalline structures species at temperatures. However, acidic properties (strength amount) did not change with calcination temperature. 400°C exhibited best catalytic performance, achieving highest yield (55.7%) complete conversion 180°C, 20 bar N2, 6 h CeSO-400. presence group on most important factor determining performance isosorbide. This work suggests CeSO-400 may play an role reducing conditions.