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Publication of FR25921EpublicationCriticalpatent/FR25921E/fr
D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
D21C7/00—Digesters
D21C7/14—Means for circulating the lye
D—TEXTILES; PAPER
D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
D21G9/00—Other accessories for paper-making machines
FR25921D1919-02-111922-01-11Dispositif pour la circulation de liquide entre un réchauffeur de liquide et une cuve à pâte
ExpiredFR25921E
(fr)