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dc.creatorMILLAR,H
dc.creatorRUIZ,J
dc.creatorFREER,J.
dc.creatorBAEZA,J
dc.date2003-03-01
dc.date.accessioned2019-11-14T12:55:18Z
dc.date.available2019-11-14T12:55:18Z
dc.identifierhttps://scielo.conicyt.cl/scielo.php?script=sci_arttext&pid=S0717-97072003000100006
dc.identifier.urihttps://revistaschilenas.uchile.cl/handle/2250/117064
dc.descriptionIn this study, the (ZD)EopDD bleaching sequence for a softwood pulp was compared with the conventional ECF reference sequence DEopDD used in the mill. A Pinus radiata kraft-oxygen pulp was treated with a (ZD) stage at 0.3% ozone and 0.5% chlorine dioxide charges. The best result was reached with the (ZD) process when O3 and ClO2 were added sequentially at high consistency. The use of ozone allowed a 43% reduction in the use of chlorine dioxide. With the (ZD)EopDD sequence a 90%ISO brightness bleached pulp was obtained, having acceptable mechanical properties, which are comparable to that generated by the DEopDD s
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dc.languageen
dc.publisherSociedad Chilena de Química
dc.relation10.4067/S0717-97072003000100006
dc.rightsinfo:eu-repo/semantics/openAccess
dc.sourceJournal of the Chilean Chemical Society v.48 n.1 2003
dc.subjectKraft pulp
dc.subjectECF bleaching
dc.subjectozone
dc.subjectchlorine dioxide
dc.titleMODIFICATION OF A MILL DEopDD SEQUENCE: IMPROVEMENT IN THE D STAGE FOR COMBINATION OF OZONE (Z) AND CHLORINE DIOXIDE (D) ON THE (ZD)EopDD SEQUENCE OF SOFTWOOD KRAFT-OXYGEN PULP


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