发明名称 |
METHOD OF BLEACHING PULP WITH OZONE, CHLORINE DIOXIDE AND PEROXIDE |
摘要 |
The present disclosure relates to a cost efficient method of bleaching a pulp by means of ozone. The method comprises subjecting an oxygen delignified pulp to an ozone bleaching stage followed by a chlorine dioxide bleaching stage and a peroxide bleaching stage. The peroxide bleaching stage is performed directly after the chlorine dioxide stage without any intermediate wash. |
申请公布号 |
EP2276883(A1) |
申请公布日期 |
2011.01.26 |
申请号 |
EP20090746853 |
申请日期 |
2009.04.23 |
申请人 |
METSO PAPER, INC. |
发明人 |
NORDEN, SOLVEIG |
分类号 |
D21C9/10;D21C9/14;D21C9/153;D21C9/16 |
主分类号 |
D21C9/10 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|