发明名称 |
Sätt vid blekning av massa utan användning av klorhaltiga kemikalier |
摘要 |
The present invention relates to a process for producing pulp which is cooked under alkaline conditions and which is bleached without using chlorine-containing bleaching chemicals, in which process used cooking chemicals are recovered in a first recovery installation and used bleaching chemicals are recovered in a second recovery installation. The used cooking and bleaching chemicals can be regenerated and reused. |
申请公布号 |
SE470538(B) |
申请公布日期 |
1994.07.25 |
申请号 |
SE19920003612 |
申请日期 |
1992.12.02 |
申请人 |
KVAERNER PULPING TECHNOLOGIES AB |
发明人 |
AAKE *BACKLUND;BENGT *NILSSON;LARS *STIGSSON |
分类号 |
D21C9/10;D21C9/02;D21C9/147;D21C11/00;D21C11/04;(IPC1-7):D21C9/00 |
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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