Alkaline oxygen delignification and bleaching of cellulose...

Details Alkaline oxygen delignification and bleaching of cellulose... Alkaline oxygen delignification and bleaching of cellulose...

D - Textiles, Paper

21

C

8/78.1, 9/16.5

D21C 9/10 (2006.01)

Patent

CA 1167206

16-249 ALKALINE OXYGEN DELIGNIFICATION AND BLEACHING OF CELLULOSE PULP IN THE PRESENCE OF AROMATIC DIAMINES ABSTRACT OF THE DISCLOSURE A process is provided for the alkaline oxygen delignification and bleaching of chemical cellulose pulp while inhibiting degradation of carbohydrates in the pulp, due to the presence of one or more aromatic diamines, preferably having the diamine groups directly linked to an aromatic ring.

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