VAERMEUPPSJUDNINGAR VID MASSAKOKNING

VAERMEUPPSJUDNINGAR VID MASSAKOKNING

A surge-boil step is performed during the heating period of a pulp cooking stage at a point of time when the chlorine number of the pulp is 20 to 30, said surge-boil step being created by causing a pressure drop in the digester by removing gas from or supplying cooling liquid to the top of the diges...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser: BACKLUND STURE OLOF ERIK
Format: Patent
Sprache:fin
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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Beschreibung
Zusammenfassung:A surge-boil step is performed during the heating period of a pulp cooking stage at a point of time when the chlorine number of the pulp is 20 to 30, said surge-boil step being created by causing a pressure drop in the digester by removing gas from or supplying cooling liquid to the top of the digester.