Enhanced bleaching of Eucalyptus kraft pulp

被引：0
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作者：
Cao, Yunfeng [1 ]
Yang, Yiqin [1 ]
Zhang, Xiaoli [1 ]
Li, Zhongzheng [1 ]
机构：
[1] Nanjing Forestry Univ., Nanjing 210037, China
来源：
| 2002年 / China Technical Association of Paper Industry卷 / 21期
关键词：
Bleaching - Chelation - Extraction - Hydrogen peroxide;
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学科分类号：
摘要：
The enhanced alkali-extraction with hydrogen peroxide (Ep), the treatment with chelator DTPA in conventional CEH bleaching of Eucalyptus kraft pulp and the supplementary bleaching with hydrogen peroxide (P) after CEH were studied. The results show that the brightness of Eucalyptus kraft pulps bleached by CQEpHP and CQEpHP sequences was over 86% SBD and the breaking length of both pulps reached 6800 m. As the sequence of CQEPHP is more simple than that of CQEpHP, so it will be better choice of Eucalyptus kraft pulp bleaching.
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