FORFARANDE FOR DELIGNIFIERING/BLEKNING AV CELLULOSAMASSA MED KLORDIOXID/KLOR I SAMMA STEG

摘要

16-256 PROCESS FOR DELIGNIFYING AND/OR BLEACHING CELLULOSE PULP The process for delignifying and/or bleaching cellulose pulp comprises adding chlorine dioxide first to the cellulose pulp, and then chlorine, the chlorine being supplied to the cellulose pulp sequentially in two or more increments in the Course of this stage of the delignifying and/or bleaching process.