发明名称 |
Process for treating a cellulose-lignin pulp |
摘要 |
A process of treating a cellulose-lignin pulp. In an ozone stage, the pulp is contacted with ozone to bleach and delignify the pulp. The ozone stage is conducted without the addition of a peroxide bleaching agent. A chelant is introduced into the ozone stage to improve selectivity of the delignification. |
申请公布号 |
ZA200804881(B) |
申请公布日期 |
2009.03.25 |
申请号 |
ZA20080004881 |
申请日期 |
2008.06.04 |
申请人 |
UNIVERSITY OF MAINE SYSTEM BOARD OF TRUSTEES |
发明人 |
HUTTO, DWANE SCOTT;ZOU, HAIXUAN |
分类号 |
D21C |
主分类号 |
D21C |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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