发明名称 |
PROCESSO PARA ALVEJAR POLPA QUIMICA |
摘要 |
A process of bleaching a chemical pulp with a dioxirane produces a pulp of good quality and reduces environmental concerns in so doing. A chemical pulp is contacted with a dioxirane, and either with or without known bleaching agents, in combination or sequence. |
申请公布号 |
BR9007993(A) |
申请公布日期 |
1992.10.13 |
申请号 |
BR19909007993 |
申请日期 |
1990.02.16 |
申请人 |
PULP AND PAPER RESEARCH INSTITUTE OF CANADA |
发明人 |
CHUNG-LI LEE |
分类号 |
D21C9/10;D21C9/14;D21C9/16 |
主分类号 |
D21C9/10 |
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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