Fractionation of a lignocellulosic material

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United States of America Patent

PATENT NO 8999067
APP PUB NO 20100196967A1
SERIAL NO

12526474

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Abstract

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A method for fractionating a lignocellulosic material, the method comprising; contacting (2) the lignocellulosic material with an ionic liquid (3) and dissolving the lignocellulosic material therein, providing a second liquid (7) which is immiscible with the ionic liquid and is also a non-solvent for cellulose, adding the second liquid to the ionic liquid so as to form a biphasic system (6) which comprises an ionic liquid phase essentially free of lignocellulose and a second liquid phase comprising lignin in solution and cellulose as a precipitate, separating the two phases and recovering (8) the precipitated cellulose from the separated second liquid phase.

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Patent Owner(s)

Patent OwnerAddress
QUEENSLAND UNIVERSITY OF TECHNOLOGYGARDENS POINT CAMPUS 2 GEORGE STREET BRISBANE CITY QLD 4000

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Doherty, William Orlando Sinclair Calamvale, AU 5 36
Edye, Leslie Alan Highland Park, AU 5 43

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