FR574762A - Procédé pour le blanchiment de matières fibreuses végétales, ainsi que de la cellulose, du papier et des matières analogues
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Procédé pour le blanchiment de matières fibreuses végétales, ainsi que de la cellulose, du papier et des matières analogues
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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
D21C9/10—Bleaching ; Apparatus therefor
D21C9/12—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds
D21C9/14—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites
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FR574762D1922-12-231923-12-19Procédé pour le blanchiment de matières fibreuses végétales, ainsi que de la cellulose, du papier et des matières analogues
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