| 发明名称 |
METHOD AT MECHANICAL CELLULOSE PULP MANUFACTURE |
| 摘要 |
The invention relates to a method of manufacturing cellulose pulp free of resin in a closed system. The resin is dispersed in a refiner step and in a subsequent alkaline bleaching step and is washed-out in a counterflow-process with a washing effect of at least 70% and successively decreasing ion strength. |
| 申请公布号 |
CA1174013(A) |
申请公布日期 |
1984.09.11 |
| 申请号 |
CA19810375146 |
申请日期 |
1981.04.09 |
| 申请人 |
SCA DEVELOPMENT AKTIEBOLAG |
发明人 |
ANDERSSON, PER-ERIK;ANNERGREN, GOERAN E.;HAGGLUND, TJELL-AKE;HOEGLUND, HANS E. |
| 分类号 |
D21B1/12;D21B1/16;D21C9/02;D21C9/08;D21C9/10;D21C9/16 |
主分类号 |
D21B1/12 |
| 代理机构 |
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