SETT VID TILLVERKNING AV MEKANISK, I HUVUDSAK HARTSFRI CELLULOSAMASSA

The invention relates to a method of manufacturing cellulose pulp free of resin in a closed system. The resin is dispersed in a refiner step and in a subsequent alkaline bleaching step and is washed-out in a counterflow-process with a washing effect of at least 70% and successively decreasing ion st...

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Bibliographische Detailangaben
Hauptverfasser:	2)G E ANNERGREN, 4)H E HOGLUND, 3)T-A HEGGLUND, 1)P-E ANDERSSON
Format:	Patent
Sprache:	swe
Schlagworte:	APPARATUS THEREFOR FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT 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:	The invention relates to a method of manufacturing cellulose pulp free of resin in a closed system. The resin is dispersed in a refiner step and in a subsequent alkaline bleaching step and is washed-out in a counterflow-process with a washing effect of at least 70% and successively decreasing ion strength.