PRETREATMENT OF OXYGEN BLEACHED PULP

PROBLEM TO BE SOLVED: To reduce both the unit requirement for a bleaching chemical and the amount of discharged pollutants by forming an unbleached washing filter into a hermetically sealed type and feeding a gas at a higher oxygen concentration than that of air thereinto. SOLUTION: The upper part o...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	KON TOSHIO, SANAI HIROSHI, TAKAHASHI NOBUHIKO
Format:	Patent
Sprache:	eng
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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