发明公开
- 专利标题： A process for concentrating a black liquor
- 专利标题（中）： Verfahren zur Einengung von Schwarzlauge。
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申请号： EP86301711.7申请日： 1986-03-10
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公开(公告)号： EP0194845A2公开(公告)日： 1986-09-17
- 发明人: Yaguchi, Tokiya , Nagato, Shuichi , Tanae, Kazushige , Shimokura, Akira , Hasegawa, Keiji
- 申请人： Research Association of Pulp and Paper Technology
- 申请人地址： Kami-Parupu Kaikan 9-11, Ginza 3-chome Chuo-ku Tokyo JP
- 专利权人： Research Association of Pulp and Paper Technology
- 当前专利权人： Research Association of Pulp and Paper Technology
- 当前专利权人地址： Kami-Parupu Kaikan 9-11, Ginza 3-chome Chuo-ku Tokyo JP
- 代理机构： Pennant, Pyers
- 优先权： JP47876/85 19850311; JP118636/85 19850531; JP175497/85 19850809
- 主分类号： D21C11/10
- IPC分类号： D21C11/10 ; B01D1/14
摘要：
A process and an apparatus are disclosed for concentrating an alkaline waste liquor which is discharged from a step of alkaline cooking wood fiber in order to recover cooking chemicals, characterized in that C0 2 gas and/or gas containing CO 2 gas is added to said waste liquor as a viscosity lowering agent, as a boiling point lowering agent and/or as a solidification promoter before and/or during said concentration.
公开/授权文献
- EP0194845B1 A process for concentrating a black liquor 公开/授权日：1991-01-02
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