METHOD FOR BLEACHING CHEMICAL PAPER PULPS BY FINAL OZONE TREATMENT AT HIGH TEMPERATURE

Method for treating a prebleached chemical pulp comprising a step of ozone treatment of the said pulp, carried out at a temperature above 60°C, advantageously above 65°C and even more advantageously above or equal to 70°C.

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Bibliographic Details
Main Authors RIED, ACHIM, CHIRAT, CHRISTINE, PIPON, GUILLAUME, HOSTACHY, JEANRISTOPHE, LACHENAL, DOMINIQUE
Format Patent
LanguageEnglish
French
Published 15.03.2016
Subjects
APPARATUS THEREFOR
BLEACHING LEATHER OR FURS
DRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS,YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS
FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
LAUNDERING
PAPER-MAKING
PRODUCTION OF CELLULOSE
PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCESFROM CELLULOSE-CONTAINING MATERIALS
REGENERATION OF PULPING LIQUORS
TEXTILES
TREATMENT OF TEXTILES OR THE LIKE
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Summary:Method for treating a prebleached chemical pulp comprising a step of ozone treatment of the said pulp, carried out at a temperature above 60°C, advantageously above 65°C and even more advantageously above or equal to 70°C.
Bibliography:Application Number: CA20072670697