dc.creator | MILLAR,H | |
dc.creator | RUIZ,J | |
dc.creator | FREER,J. | |
dc.creator | BAEZA,J | |
dc.date | 2003-03-01 | |
dc.date.accessioned | 2019-11-14T12:55:18Z | |
dc.date.available | 2019-11-14T12:55:18Z | |
dc.identifier | https://scielo.conicyt.cl/scielo.php?script=sci_arttext&pid=S0717-97072003000100006 | |
dc.identifier.uri | https://revistaschilenas.uchile.cl/handle/2250/117064 | |
dc.description | In 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 | |
dc.format | text/html | |
dc.language | en | |
dc.publisher | Sociedad Chilena de Química | |
dc.relation | 10.4067/S0717-97072003000100006 | |
dc.rights | info:eu-repo/semantics/openAccess | |
dc.source | Journal of the Chilean Chemical Society v.48 n.1 2003 | |
dc.subject | Kraft pulp | |
dc.subject | ECF bleaching | |
dc.subject | ozone | |
dc.subject | chlorine dioxide | |
dc.title | MODIFICATION 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 | |