Study on preparation of prehydrolysis-kraft viscose pulp from reed

被引：0

作者：

Hu Kexin ^{[1
]}

Zeng Guangming ^{[1
]}

Chen Qijie ^{[1
]}

Liu Yanxin ^{[1
]}

Wang Ping ^{[1
]}

机构：

[1] Changsha Univ Sci & Technol, Coll Chem & Environm Engn, Changsha 410076, Peoples R China

来源：

NEW TECHNOLOGIES IN NON-WOOD FIBER PULPING AND PAPERMAKING | 2006年

关键词：

reed; prehydrolysis; kraft pulping; CEHA bleaching; viscose pulp;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Two-stage (prehydrolysis-kraft) pulping and CEHA bleaching process of reed were investigated in this paper. The results showed that the optimum prehydrolysis conditions are as follows: maximum temperature 175 degrees C, treatment time at maximum temperature 90 minutes, liquor ratio 1:6. The results also showed that the optimum cooking conditions of kraft pulping are as follows: maximum temperature 175 degrees C, treatment time at maximum temperature 30 minutes, sulfidity 15%, liquor ratio 1:4. A CEHA four stage bleaching was used for preparation of reed viscose pulp. Total chlorine charge in bleaching was 6% (to oven-dry pulp). The results showed that all of the indices fitted the quality standards of viscose pulp under the above optimum conditions.

引用

页码：184 / 186

页数：3