PROCESS FOR IMPROVING CHLORINE DIOXIDE BLEACHING OF PULP

The invention is directed to a method for increasing brightness of pulp, wherein the method includes: contacting a pulp slurry with chlorine dioxide in a final D (ClO2) bleaching stage; and adding a brightening additive to the final D bleaching stage after at least a portion of the chlorine dioxide...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	CONNELL, DANIEL, ATWOOD, JOHN, CARMICHAEL, SCOTT, REID, DOUGLAS W
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	APPARATUS THEREFOR PAPER-MAKING PRODUCTION OF CELLULOSE PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCESFROM CELLULOSE-CONTAINING MATERIALS REGENERATION OF PULPING LIQUORS TEXTILES
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