Hydroxyapatite as a novel support for Ru in the hydrogenation of levulinic acid to γ-valerolactone

Metal catalysts (Ru, Pt, Pd, Ni) supported on hydroxyapatite (HAP) were examined for the hydrogenation of levulinic acid to γ-valerolactone. Among these Ru supported on HAP exhibited 99% yield of γ-valerolactone at 70°C and 0.5MPaH2 pressure. The Ru/HAP catalyst was characterized by various adsorpti...

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Bibliographic Details
Published in:Catalysis communications 2014-05, Vol.50, p.101-104
Main Authors: Sudhakar, M., Lakshmi Kantam, M., Swarna Jaya, V., Kishore, R., Ramanujachary, K.V., Venugopal, A.
Format: Article
Language:English
Subjects:
Hydroxyapatite
Levulinic acid
Reusability
γ-Valerolactone
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Summary:Metal catalysts (Ru, Pt, Pd, Ni) supported on hydroxyapatite (HAP) were examined for the hydrogenation of levulinic acid to γ-valerolactone. Among these Ru supported on HAP exhibited 99% yield of γ-valerolactone at 70°C and 0.5MPaH2 pressure. The Ru/HAP catalyst was characterized by various adsorption and spectroscopic techniques. The Ru/HAP catalyst was quite stable up to four recycles. Ru/HAP catalyst has been identified as an efficient catalyst for the conversion of biomass derived levulinic acid to γ-valerolactone at low temperature and pressure using H2O as a solvent. This method provides general approach to γ-valerolactone synthesis which can replace ethanol in the petrol and in the production of jet fuels. [Display omitted] •Ca5(PO4)3(OH) as a support for Ru, Pt, Pd and Ni in hydrogenation of levulinic acid•Rate of γ-valerolactone is very high over Ru/Ca5(PO4)3(OH).•Ru/Ca5(PO4)3(OH) can be used for four cycles with consistent yields.
ISSN:1566-7367
1873-3905
DOI:10.1016/j.catcom.2014.03.005