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 particularly suitable when the pulp is subsequently bleached with at least one chlorine dioxide stage...

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Hauptverfasser: PARTHASARATHY, V.R, JAMEEL, HASAN, GRATZL, JOSEF S, KLEIN, RONALD J, SUNDARAM, MEENAKSI
Format: Patent
Sprache:eng ; kor
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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creator PARTHASARATHY, V.R
JAMEEL, HASAN
GRATZL, JOSEF S
KLEIN, RONALD J
SUNDARAM, MEENAKSI
description 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 particularly suitable when the pulp is subsequently bleached with at least one chlorine dioxide stage and at least one hydrogen peroxide stage.
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subjects APPARATUS THEREFOR
PAPER-MAKING
PRODUCTION OF CELLULOSE
PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCESFROM CELLULOSE-CONTAINING MATERIALS
REGENERATION OF PULPING LIQUORS
TEXTILES
title HYDROGEN PEROXIDE REINFORCED OXYGEN DELIGNIFICATION
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