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Saccharifying cellulose

  • US 8,236,536 B2
  • Filed: 01/13/2010
  • Issued: 08/07/2012
  • Est. Priority Date: 02/23/2007
  • Status: Active Grant
First Claim
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1. A method for the preparation of one or more alcohols comprising the steps of:

  • incubating biomass cellulose or waste cellulose with an ionic liquid (IL) to form a solution;

    precipitating amorphous cellulose and/or cellulose of reduced crystallinity by admixture with an anti-solvent;

    adding cellulases to the cellulose precipitate under conditions which promote the hydrolysis of cellulose to sugars; and

    converting the sugars to one or more alcohols.

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