FREMGANGSMADE TIL FREMSTILLING AF RACELLULOSE EFTER SULFITMETODEN

Chemical cellulose is produced by treatment in a digester. In the first step, wood in the form of chips is treated for a period of about from 15 to 90 minutes with a cooking acid of a calculated amount of below 5% by weight and at least 2.5% by weight of SO2 and a mole ratio of SO2 to MgO or CaO of...

Ausführliche Beschreibung

Bibliographische Detailangaben

1. Verfasser:	SCHADLER R
Format:	Patent
Sprache:	dan
Schlagworte:	APPARATUS THEREFOR PAPER-MAKING PRODUCTION OF CELLULOSE PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCESFROM CELLULOSE-CONTAINING MATERIALS REGENERATION OF PULPING LIQUORS TEXTILES
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