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Publication of FI42397BpublicationCriticalpatent/FI42397B/fi
Publication of FI42397CpublicationCriticalpatent/FI42397C/fi
D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
D21C1/00—Pretreatment of the finely-divided materials before digesting
D21C1/10—Physical methods for facilitating impregnation
D—TEXTILES; PAPER
D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
D21C1/00—Pretreatment of the finely-divided materials before digesting
FI189460A1959-11-201960-11-17Laite selluloosa-aineiden jatkuvaksi käsittelyksi, erityisesti puolikemiallisen massan valmistamiseksi
FI42397C
(fi)