Process to dissociate and extract the lignin and optionally...

Details Process to dissociate and extract the lignin and optionally... Process to dissociate and extract the lignin and optionally...

C - Chemistry, Metallurgy

07

G

260/133, 260/224

C07G 1/00 (2006.01) C08B 37/14 (2006.01)

Patent

CA 1282777

Abstract This patent is related to the separation of the fibres from each other in lignocellulosic (straw, bagasse, wood) composites, and at the same time to dissociate the Lignin and the Xylan in the middle lamella and the primary wall of the lignocellulosic material, to enable a simple non reactive solvent extraction of the middle lamella and primary wall components while substantially retaining the structural integrity of the fibre bundle, sometimes referred to as the S2 layer, which is the strength member of the lignocellulosic fibre. The purpose of this process is to produce a fibre suitable to replace conventional Chemical Thermal Mechanical Pulp, for paper or as a carrier for high absorbency Cellulose in diaper and similar absorbent material applications, and at the same time to recover the chemical components of the middle lamella and the primary wall of the fibre, as co-products in a marketable, chemically reactive form.

547099

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