Process for delignifying lignocellulosic material in the...

D - Textiles – Paper – 21 – C

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D21C 3/00 (2006.01) D21C 3/02 (2006.01)

Patent

CA 1192009

PROCESS FOR DELIGNIFYING LIGNOCELLULOSIC MATERIAL IN THE PRESENCE OF PHENAZINE COMPOUNDS ABSTRACT OF THE DISCLOSURE A process is provided for improving the dissolution of lignin and increasing the cellulose pulp yield, by delignifying lignocellulosic material at a temperature below about 200°C under alkaline conditions in the presence of a compound having the phenazine ring structure: Image or a derivative thereof.

315209

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