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Raoul Pictet & F Tharaldsen As
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Raoul Pictet & F Tharaldsen As
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Application filed by Raoul Pictet & F Tharaldsen AsfiledCriticalRaoul Pictet & F Tharaldsen As
Application grantedgrantedCritical
Publication of FR698338ApublicationCriticalpatent/FR698338A/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
FR698338D1930-07-031930-07-03Procédé pour la productlon de la cellulose
ExpiredFR698338A
(fr)