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Phrix Werke AG
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Phrix Werke AG
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Application filed by Phrix Werke AGfiledCriticalPhrix Werke AG
Application grantedgrantedCritical
Publication of FR903792ApublicationCriticalpatent/FR903792A/fr
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
FR903792D1943-06-071944-04-26Procédé pour obtenir, par attaque alcaline, une cellulose apte à subir une transformation chimique ultérieure
ExpiredFR903792A
(fr)