Liquid-phase dehydration of sorbitol to isosorbide using sulfated zirconia as a solid acid catalyst

Authors: Nazmul Abedin Khan, Dinesh Kumar Mishra, Imteaz Ahmed, Ji Woong Yoon, Jin-Soo Hwang, Sung Hwa Jhung

Abstract:
Sulfated zirconia catalysts have been prepared with zirconium (IV) hydroxide and sulfuric acid as the sources of zirconia and sulfate group, respectively. In this study, liquid-phase dehydration of sorbitol to isosorbide is investigated in the presence of the catalysts under various reaction conditions including reaction temperature, time, catalyst dosage and sulfur content/acidity of the catalysts. The results show that sulfated zirconia, with high sulfur content and a tetragonal crystalline structure, is a promising solid acid catalyst that can be used at least four times in the dehydration of sorbitol to isosorbide. 

Keywords:
Sorbitol dehydration
Isosorbide
Solid acid
Zirconia
Sulfation

Published in: Applied catalysis A: General  (Volume 452, Pages 1-222, 15 February 2013)

Publisher: Elsevier

ISSN Information: 0926-860X

Liquid-phase dehydration of sorbitol to isosorbide using sulfated zirconia as a solid acid catalyst

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