CH430420A - Verfahren zur Herstellung von Papierzellstoffen
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Verfahren zur Herstellung von Papierzellstoffen
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CH430420A
CH430420ACH96466ACH96466ACH430420ACH 430420 ACH430420 ACH 430420ACH 96466 ACH96466 ACH 96466ACH 96466 ACH96466 ACH 96466ACH 430420 ACH430420 ACH 430420A
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Publication of CH430420ApublicationCriticalpatent/CH430420A/de
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
D21C1/06—Pretreatment of the finely-divided materials before digesting with alkaline reacting compounds
D—TEXTILES; PAPER
D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
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
D21C1/08—Pretreatment of the finely-divided materials before digesting with oxygen-generating compounds
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(AREA)
CH96466A1965-03-191966-01-25Verfahren zur Herstellung von Papierzellstoffen
CH430420A
(de)
Verfahren zur Herstellung chemischmechanischer Faserstoffe durch Erhitzung und Zerfaserung von mit Sulfitloesungen impraegnierten Holzhackstuecken in Dampfatmosphaere unter Druck und bei erhoehter Temperatur