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Buffalo Electro-Chemical Co Inc
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Buffalo Electro-Chemical Co Inc
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Application filed by Buffalo Electro-Chemical Co IncfiledCriticalBuffalo Electro-Chemical Co Inc
Application grantedgrantedCritical
Publication of FR917992ApublicationCriticalpatent/FR917992A/fr
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
D21C9/1057—Multistage, with compounds cited in more than one sub-group D21C9/10, D21C9/12, D21C9/16
FR917992D1945-01-101945-11-26Nouveaux perfectionnements au traitement de la pulpe de bois broyée
ExpiredFR917992A
(fr)