Production of lactic acid from cellulose catalyzed by alumina-supported Er2O3 catalysts

Production of lactic acid from cellulose catalyzed by alumina-supported Er2O3 catalysts Alumina-supported erbium oxide catalysts with various compositions were prepared and characterized by inductively coupled plasma-optical emission spectroscopy, N2 physical adsorption measurements, powder X-ray diffraction, Fourier-transform infrared spectroscopy, X-ray photoelectron spectroscopy, and NH3 temperature-programmed desorption measurements. The catalysts were evaluated for the conversion of cellulose to lactic acid in aqueous solution under inert atmosphere. Er2O3/Al2O3 with 13.9 % Er loading was found to exhibit the highest activity for the conversion of cellulose to lactic acid. Lactic acid yields as high as 45.8 % were obtained when reacting 0.2 g cellulose, 0.05 g catalyst, and 30 mL water at 240 °C under 2 MPa N2 for 3 h. The lactic acid yield decreased gradually with recycling of the catalyst. The decrease in catalytic activity during continuous runs was mainly attributed to the leaching of active erbium species. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Research on Chemical Intermediates Springer Journals

Production of lactic acid from cellulose catalyzed by alumina-supported Er2O3 catalysts

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Publisher
Springer Netherlands
Copyright
Copyright © 2016 by Springer Science+Business Media Dordrecht
Subject
Chemistry; Catalysis; Physical Chemistry; Inorganic Chemistry
ISSN
0922-6168
eISSN
1568-5675
D.O.I.
10.1007/s11164-016-2529-4
Publisher site
See Article on Publisher Site

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