| 发明名称 |
BLEACH HYDROLYSIS OF PULP WITH SUBSTANTIALLY REDUCED USE OF CHLORINE |
| 摘要 |
<p>The present invention provides in a multistage process for fully bleaching a pulp using a minimum of chlorine, the improvement in which the first stage comprises an alkaline peroxide bleach hydrolysis in which stage the pulp is bleached with a content of alkali of 0.5 to 3% by weight, calculated as a 100% substance and relative to absolutely dry pulp, and at a temperature of the bleaching liquor of at least 65.degree.C.</p> |
| 申请公布号 |
CA1080406(A) |
申请公布日期 |
1980.07.01 |
| 申请号 |
CA19760245088 |
申请日期 |
1976.02.05 |
| 申请人 |
DEUTSCHE GOLD- UND SILBER-SCHEIDEANSTALT VORMALS ROESSLER |
发明人 |
KRUEGER, HORST;TRASER, WERNER |
| 分类号 |
D21C9/10;(IPC1-7):21C9/12 |
主分类号 |
D21C9/10 |
| 代理机构 |
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