HYDROGEN PEROXIDE REINFORCED OXYGEN DELIGNIFICATION

HYDROGEN PEROXIDE REINFORCED OXYGEN DELIGNIFICATION A process is provided for a two-stage oxygen delignification of chemical pulp in which 0.01% to 1% hydrogen peroxide is incorporated into the first and, optionally the second stage. The invention is parti-cularly suitable when the pulp is subsequen...

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Bibliographische Detailangaben
Hauptverfasser:	PARTHASARATHY, V.R, JAMEEL, HASAN, KLEIN, RONALD JAMES, GRATZL, JOSEF STEPHAN, SUNDARAM, MEENAKSHI
Format:	Patent
Sprache:	eng ; fre
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:	HYDROGEN PEROXIDE REINFORCED OXYGEN DELIGNIFICATION A process is provided for a two-stage oxygen delignification of chemical pulp in which 0.01% to 1% hydrogen peroxide is incorporated into the first and, optionally the second stage. The invention is parti-cularly suitable when the pulp is subsequently bleached with at least one chlorine dioxide stage and at least one hydrogen peroxide stage.