Journal
TOPICS IN CATALYSIS
Volume 53, Issue 15-18, Pages 1241-1247Publisher
SPRINGER/PLENUM PUBLISHERS
DOI: 10.1007/s11244-010-9570-0
Keywords
Inorganic salts; Lewis acids; D-glucose; HMF; Levulinic acid; Lactic acid; Biobased chemicals
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Funding
- University of Groningen
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The use of inorganic salts as catalysts for the reactions of d-glucose in aqueous solutions in a batch reactor is reported. The type of salt and effect of reaction time were examined in detail at a fixed salt (5 mM) and d-glucose concentration (0.1 M) and at a temperature of 140 A degrees C. Al(III) and Cr(II) salts gave the highest conversion of d-glucose. Typical reaction products were organic acids like lactic acid, levulinic acid, furanics like hydroxymethylfurfural and insoluble products (humins). The chemo-selectivity is a clear function of the type of inorganic salt. For Al(III), the major water soluble product was lactic acid, for Zn(II) HMF was formed in the highest yields. A reaction scheme is proposed to explain the observed product compositions.
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