Coagulation of chitin and cellulose from 1-ethyl-3-methylimidazolium acetate ionic-liquid solutions using carbon dioxide

Angew Chem Int Ed Engl. 2013 Nov 18;52(47):12350-3. doi: 10.1002/anie.201304604. Epub 2013 Oct 2.

Abstract

Chemisorption of carbon dioxide by 1-ethyl-3-methylimidazolium acetate ([C2 mim][OAc]) provides a route to coagulate chitin and cellulose from [C2 mim][OAc] solutions without the use of high-boiling antisolvents (e.g., water or ethanol). The use of CO2 chemisorption as an alternative coagulating process has the potential to provide an economical and energy-efficient method for recycling the ionic liquid.

Keywords: biomass; carbon dioxide; chitin; coagulation; ionic liquids.

Publication types

  • Research Support, Non-U.S. Gov't
  • Research Support, U.S. Gov't, Non-P.H.S.

MeSH terms

  • Adsorption
  • Biomass
  • Carbon Dioxide / chemistry*
  • Cellulose / chemistry*
  • Chitin / chemistry*
  • Ethanol / chemistry
  • Imidazoles / chemistry*
  • Ionic Liquids / chemistry*
  • Solutions / chemistry
  • Water / chemistry

Substances

  • Imidazoles
  • Ionic Liquids
  • Solutions
  • Water
  • Chitin
  • Carbon Dioxide
  • Ethanol
  • Cellulose
  • 1-ethyl-3-methylimidazolium