Journal
JOURNAL OF NATURAL GAS CHEMISTRY
Volume 20, Issue 1, Pages 18-24Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/S1003-9953(10)60147-8
Keywords
levulinic acid; n-butanol; dodectungestophosphoric acid; K10; n-butyl levulinate
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Levulinic acid has been identified as a promising green, biomass-derived platform chemical. n-Butyl levulinate is used as an important intermediate having diverse applications. The present work focuses on the synthesis of n-butyl levulinate by esterification of levulinic acid with n-butanol using heteropolyacid (HPA) supported on acid-treated clay montmorillonite (K10). 20% (w/w) dodecatungestophosphoric acid (DTPA) supported on K10 was found to be the most efficient catalyst with 97% levulinic acid conversion and 100% selectivity towards n-butyl levulinate. Effects of various process parameters were studied to examine the efficacy of 20% (w/w) DTPA/K10 for optimization of the activity.
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