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PRODUITS PEROXYDES SOC D
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PRODUITS PEROXYDES SOC D
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Application filed by PRODUITS PEROXYDES SOC DfiledCriticalPRODUITS PEROXYDES SOC D
Application grantedgrantedCritical
Publication of FR864757ApublicationCriticalpatent/FR864757A/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
FR864757D1940-04-111940-04-11Procédé de blanchiment de celluloses
ExpiredFR864757A
(fr)