发明公开
EP0206560A3 Alkaline-peroxide-oxygen treatment for unbleached and chlorinated chemical pulps
失效
用于未漂白和氯化化学粉末的碱性 - 过氧化物 - 氧化处理
- 专利标题： Alkaline-peroxide-oxygen treatment for unbleached and chlorinated chemical pulps
- 专利标题（中）： 用于未漂白和氯化化学粉末的碱性 - 过氧化物 - 氧化处理
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申请号： EP86304123申请日： 1986-05-30
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公开(公告)号： EP0206560A3公开(公告)日： 1988-07-20
- 发明人: Liebergott, Norman , Van Lierop, Barbara
- 申请人： Pulp and Paper Research Institute of Canada
- 专利权人： Pulp and Paper Research Institute of Canada
- 当前专利权人： Pulp and Paper Research Institute of Canada
- 优先权： CA484110 19850617
- 主分类号： D21C09/10
- IPC分类号： D21C09/10
摘要：
There are provided improvements relating to the delignification and/or the bleaching of a chemical pulp wherein the cellulosic material is simultaneously treated with an alkali compound, a peroxygen compound and an oxygen gas at partial pressure in the presence of a viscosity protecting catalyst.
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