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
Removal of fats, resins, pitch or waxes;; Chemical or physical purification, i.e. refining, of crude cellulose by removing non-cellulosic contaminants, optionally combined with bleaching
