The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 07, 2015
Filed:
Feb. 07, 2008
Leslie Alan Edye, Highland Park, AU;
William Orlando Sinclair Doherty, Calamvale, AU;
Leslie Alan Edye, Highland Park, AU;
William Orlando Sinclair Doherty, Calamvale, AU;
Queensland University of Technology, Brisbane, Queensland, AU;
Abstract
A method for fractionating a lignocellulosic material, the method comprising; contacting () the lignocellulosic material with an ionic liquid () and dissolving the lignocellulosic material therein, providing a second liquid () 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 () 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 () the precipitated cellulose from the separated second liquid phase.