Process for the preparation of sulphate pulp from a lignocellulose-containing material

Process for the preparation of sulphate pulp from a lignocellulose-containing material

Process for the preparation of sulphate pulp from a lignocellulose-containing material. The yield of the pulp can be raised here because of the very short time of contact between the material and the cooking liquor in the temperature range of 80-140 degrees C. The impregnation is essentially carried...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: 4)O J LEHTINEN, 2)S O E BACKLUND, 3)P O A BODIN, 1)G E ANNERGREN
Format: Patent
Sprache:eng ; swe
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:Process for the preparation of sulphate pulp from a lignocellulose-containing material. The yield of the pulp can be raised here because of the very short time of contact between the material and the cooking liquor in the temperature range of 80-140 degrees C. The impregnation is essentially carried out at a temperature outside these limits and at a value below the cooking temperature.