发明名称 Method of washing pulp in connection with bleaching
摘要 <p>The present invention is directed to a method of washing pulp in connection with bleaching, in which method the pulp is bleached in a first bleaching arrangement, washed in a first washer, bleached in a second bleaching arrangement, and washed in a second washer in such a manner that the washing liquid is recirculated from said second washer to said first washer countercurrent to the pulp flow, characterized in introducing washing liquid to said second washer for washing the pulp coming from said second bleaching arrangement, displacing with said washing liquid at least two different filtrates, collecting said at least two different filtrates separately, and using said at least two filtrates separately upstream of said second washer as washing liquids.</p>
申请公布号 EP0884415(A1) 申请公布日期 1998.12.16
申请号 EP19980113684 申请日期 1993.05.25
申请人 AHLSTROM MACHINERY OY 发明人 HENRICSON, KAJ;STROMBERG, BERTIL
分类号 D21C;D21C9/02;D21C9/10;D21C9/147;D21C9/153;D21C9/16;(IPC1-7):D21C9/02 主分类号 D21C
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