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Phrix Werke AG
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Phrix Werke AG
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Publication of FR903789ApublicationCriticalpatent/FR903789A/fr
D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
D21C3/00—Pulping cellulose-containing materials
D21C3/04—Pulping cellulose-containing materials with acids, acid salts or acid anhydrides
D21C3/06—Pulping cellulose-containing materials with acids, acid salts or acid anhydrides sulfur dioxide; sulfurous acid; bisulfites sulfites
FR903789D1943-06-241944-04-26Procédé de préparation de cellulose d'après le procédé au sulfite à partir de produits bruts cellulosiques
ExpiredFR903789A
(fr)
Procédé d'obtention d'une cellulose écrue à basse teneur de pentosanes, en vue de la préparation d'une cellulose textile, à partir des végétaux annuels
Procédé pour préparer, à partir de matières premières cellulosique et d'après le procédé au sulfite, des celluloses convenant pour des traitements chimiques ult'rieurs