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Application filed by Nemenyi Testverek Papirgyar RefiledCriticalNemenyi Testverek Papirgyar Re
Publication of CH231077ApublicationCriticalpatent/CH231077A/de
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
D21C3/16—Pulping cellulose-containing materials with acids, acid salts or acid anhydrides nitrogen oxides; nitric acid nitrates, nitrites
CH231077D1941-05-231942-05-15Verfahren und Einrichtung zum Aufschliessen von zellulosehaltigen Materialien.
CH231077A
(de)