REDUCTION IN CHLORINE USE DURING BLEACHING OF KRAFT PULP FOLLOWING XYLANASE TREATMENT

被引：0

作者：

SENIOR, DJ ^{[1
]}

HAMILTON, J ^{[1
]}

BERNIER, RL ^{[1
]}

DUMANOIR, JR ^{[1
]}

机构：

[1] ICI CANADA INC,BIOPROD & FINE CHEM,MISSISSAUGA L5K 2LC,ONTARIO,CANADA

来源：

TAPPI JOURNAL | 1992年 / 75卷 / 11期

关键词：

BLEACHING; BRIGHTNESS; CHLORINE; CHLORINE DIOXIDE; KRAFT PULPS; PRETREATMENT; REDUCTION; XYLANASE;

D O I：

暂无

中图分类号：

TB3 [工程材料学]; TS [轻工业、手工业、生活服务业];

学科分类号：

0805 ; 080502 ; 0822 ;

摘要：

Xylanase-treated pulp bleached at 10% substitution required almost 80% less Cl2 and 5% less ClO2 than the control pulp to reach 90% ISO brightness. Xylanase allows the mill to bleach to 90% ISO at a Cl2 level equivalent to 80% ClO2 substitution but with a 33% reduction in ClO2. Pretreatment also allowed pulps of 92% ISO to be prepared with a chlorine multiple of 0.15, whereas the analogous pulp at a multiple of 0.25 reached less than 91% ISO.

引用

页码：125 / 130

页数：6

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