发明名称 |
BLEACHING OF PULP |
摘要 |
A method of oxygen delignification of pulp from lignocellulosic material. The oxygen delignification is carried out in two steps where the pulp concentration in the first step is 25-40% and in the second step 8-16%. The temperature in the second step shall be at least as high as in the first step, and the staytime in the first step shall be shorter than in the second step.
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申请公布号 |
CA2186204(A1) |
申请公布日期 |
1997.04.20 |
申请号 |
CA19962186204 |
申请日期 |
1996.09.23 |
申请人 |
SUNDS DEFIBRATOR INDUSTRIES AB |
发明人 |
GERMG RD, ULF;LINDQUIST, JONAS;BOKSTROEM, MONICA |
分类号 |
D21C;D21C9/147;(IPC1-7):D21C9/147 |
主分类号 |
D21C |
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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