DELIGNIFICATION AND BLEACHING OF CELLULOSE PULP WITH OXYGEN AND ALKALI IN THE PRESENCE OF MAGNESIUM CHLORIDE INHIBITOR

Delignification and bleaching of cellulose pulp with oxygen and alkali by blending the cellulose pulp with an inhibiting quantity of magnesium chloride and then with alkali prior to heating with oxygen. The mixture of magnesium chloride and alkali precipitate finely divided and well dispersed magnes...

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Bibliographische Detailangaben
Hauptverfasser:	AUNG T,US, BOYLE W,US
Format:	Patent
Sprache:	eng
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:	Delignification and bleaching of cellulose pulp with oxygen and alkali by blending the cellulose pulp with an inhibiting quantity of magnesium chloride and then with alkali prior to heating with oxygen. The mixture of magnesium chloride and alkali precipitate finely divided and well dispersed magnesium hydroxide in situ within the cellulose pulp stabilizing the cellulose during the delignification process.