| 发明名称 |
METHOD OF TREATING PROCESS WATER |
| 摘要 |
Treatment of process water containing metal ions, in connection with the bleaching of pulp of lignocellulose-containing material. The process water is brought into contact with pulp at pH above 7 and a temperature of 50-120 .degree.C. The process thereby is relieved entirely or partially from the metal ion content. |
| 申请公布号 |
CA2139566(A1) |
申请公布日期 |
1994.03.17 |
| 申请号 |
CA19932139566 |
申请日期 |
1993.08.11 |
| 申请人 |
SUNDS DEFIBRATOR IND AB |
发明人 |
GERMGARD ULF;NORDEN SOLVEIG |
| 分类号 |
C02F9/00;D21C9/00;D21C9/10;D21C9/153;D21C9/16;D21C11/00;(IPC1-7):D21C11/00 |
主分类号 |
C02F9/00 |
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