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Title: Methods for conversion of carbohydrates in ionic liquids to value-added chemicals

Patent ·
OSTI ID:1021875
 [1];  [2];  [3]
  1. The Woodlands, TX
  2. Kennewick, WA
  3. Norwood, NJ
+ Show Author Affiliations

Methods are described for converting carbohydrates including, e.g., monosaccharides, disaccharides, and polysaccharides in ionic liquids to value-added chemicals including furans, useful as chemical intermediates and/or feedstocks. Fructose is converted to 5-hydroxylmethylfurfural (HMF) in the presence of metal halide and acid catalysts. Glucose is effectively converted to HMF in the presence of chromium chloride catalysts. Yields of up to about 70% are achieved with low levels of impurities such as levulinic acid.

Research Organization:
Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC05-76RL01830
Assignee:
Battelle Memorial Institute (Richland, WA)
Patent Number(s):
7,939,681
OSTI ID:
1021875
Country of Publication:
United States
Language:
English

References (5)

Nouvelle méthode de préparation du 5-hydroxyméthyl-2-furaldéhyde par action de sels d'ammonium ou d'immonium sur les mono-, oligo- et poly-saccharides. Accès direct aux 5-halogénométhyl-2-furaldéhydes journal October 1983
Ionic structure and interactions in 1-methyl-3-ethylimidazolium chloride-aluminum chloride molten salts journal April 1988
Ionic Liquids in Carbohydrate Chemistry - Current Trends and Future Directions journal October 2005
Dehydration of fructose into 5-hydroxymethylfurfural in the presence of ionic liquids journal October 2003
Dehydration of fructose and sucrose into 5-hydroxymethylfurfural in the presence of 1-H-3-methyl imidazolium chloride acting both as solvent and catalyst journal July 2006

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Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY