Journal
APPLIED CATALYSIS A-GENERAL
Volume 452, Issue -, Pages 34-38Publisher
ELSEVIER
DOI: 10.1016/j.apcata.2012.11.022
Keywords
Sorbitol dehydration; Isosorbide; Solid acid; Zirconia; Sulfation
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Funding
- cooperative RD Program [B551179-10-03-00]
- Korea Research Council Industrial Science and Technology, Republic of Korea
- Kyungpook National University Research Fund
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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. (c) 2012 Elsevier B.V. All rights reserved.
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