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SINGLE STEP PROCESS FOR SEPARATING BIOMASS COMPONENTS

  • US 20100190973A1
  • Filed: 06/19/2008
  • Published: 07/29/2010
  • Est. Priority Date: 06/20/2007
  • Status: Abandoned Application
First Claim
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1. A process for obtaining cellulose from biomass in a form amenable to complete enzymatic hydrolysis, said process comprising contacting the biomass with a mixture of an organic solvent immiscible in water, an acid and a metal salt catalyst dissolved in the acidic water solution under predetermined temperature and pressure and filtering the reaction mixture under pressure to separate the dissolved lignin, hemciellulose in the solvent and aqueous phase respectively and leaving behind pure cellulose.

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