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US 2013/0153163 A1Published application
Method of dissolving lignocellulosic materials
AssigneeForestcluster Ltd
InventorsAlistair W. T. King, Ilkka Kilpelainen
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AssigneeForestcluster Ltd
InventorsAlistair W. T. King, Ilkka Kilpelainen
Estimating the term…
The invention describes solutions containing cellulose and a method of dissolving lignocellulosic materials. In the method, the lignocellulosic material is contacted with a conjugate acid, formed by a strong organic base and a weaker acid, under conditions which are conducive to at least a partial dissolution of the cellulosic components of the lignocellulosic material. It has been found that it is possible to recover at least a portion of the dissolved part of the lignocellulosic material by at least partial dissociation of the conjugate acid. Furthermore it is possible to recover at least a portion of the dissociated organic base and the acid, to form a conjugate acid of the recovered base and acid, and to recycle it for use in the first steps of the method.
A solution containing cellulose and an ionic liquid, which comprises anions and cations as a solvent, the cation being derived from a substituted amidine or guanidine base and the anion being derived from a Brønsted acid.
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A method of processing lignocellulosic materials, comprising in combination the steps of
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Dependencies are inferred from the claim text.