Esterification of levulinic acid to n-butyl levulinate over heteropolyacid supported on acid-treated clay |
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Authors: | SDharne VVBokade |
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Institution: | Catalysis Division, National Chemical Laboratory (CSIR), Pune, India |
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Abstract: | 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 ofn-butyl levulinate by esterification of levulinic acid withn-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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Keywords: | levulinic acid n-butanol dodectungestophosphoric acid K10 n-butyl levulinate |
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