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CARL G SCHWALBE
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CARL G SCHWALBE
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Application filed by CARL G SCHWALBEfiledCriticalCARL G SCHWALBE
Application grantedgrantedCritical
Publication of FR477092ApublicationCriticalpatent/FR477092A/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
FR477092A1914-08-011914-07-24Procédé de désagrégation de fibres végétales
ExpiredFR477092A
(fr)
Procédé pour la production de fibres absorbantes pour la fabrication de cartons bruts servant à fabriquer des cartons bitumés pour toitures, revetements et autres applications