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

United States Patent

May 10, 2011
View the Complete Patent at the US Patent & Trademark Office
Pacific Northwest National Laboratory - Visit the Technology Commercialization Program Website
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.
Zhao; Haibo (The Woodlands, TX), Holladay; Johnathan E. (Kennewick, WA), Zhang; Zongchao C. (Norwood, NJ)
Battelle Memorial Institute (Richland, WA)
11/ 774,036
July 6, 2007
This invention was made with Government support under Contract DE-AC05-76RLO1830 awarded by the U.S. Department of Energy. The Government has certain rights in the invention.