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Recovery of sugars from ionic liquid biomass liquor by solvent extraction

United States Patent

October 13, 2015
View the Complete Patent at the US Patent & Trademark Office
Lawrence Berkeley National Laboratory - Visit the Technology Transfer and Intellectual Property Management Department Website
The present invention provides for a composition comprising a solution comprising (a) an ionic liquid (IL) or ionic liquid-aqueous (ILA) phase and (b) an organic phase, wherein the solution comprises a sugar and a boronic acid. The present invention also provides for a method of removing a sugar from a solution, comprising: (a) providing a solution comprising (i) an IL or ILA phase and (ii) an organic phase, wherein the solution comprises an IL, a sugar and a boronic acid; (b) contacting the sugar with the boronic acid to form a sugar-boronic acid complex, (c) separating the organic phase and the aqueous phase, wherein the organic phase contains the sugar-boronic acid complex, and optionally (d) separating the sugar from the organic phase.
Brennan; Timothy Charles R. (Brisbane, AU), Holmes; Bradley M. (Oakland, CA), Simmons; Blake A. (San Francisco, CA), Blanch; Harvey W. (San Francisco, CA)
Sandia Corporation (Livermore, CA), The Regents of the University of California (Oakland, CA)
13/ 434,714
March 29, 2012
STATEMENT OF GOVERNMENTAL SUPPORT The invention was made with government support under Contract Nos. DE-AC02-05CH11231 awarded by the U.S. Department of Energy. The government has certain rights in the invention.