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D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
Verfahren und Einrichtung zur Behandlung von Faserstoffen mit Fluessigkeit und zum Abtrennen der von ihnen mitgefuehrten Fluessigkeit in aufeinanderfolgenden Arbeitsgaengen