ORGANOSOLV PULPING OF COTTON LINTERS

被引：0
|
作者：
El-Ghany, Nahed A. Abd [1 ]
机构：
[1] Cairo Univ, Fac Sci, Dept Chem, Cairo, Egypt
来源：
CELLULOSE CHEMISTRY AND TECHNOLOGY | 2009年 / 43卷 / 9-10期
关键词：
anthraquinone (AQ); cotton linters; chemical reactivity (xanthation); ethanol; fine structure; filterability; prehydrolysis soda pulping; prehydrolysis soda ethanol pulping; prehydrolysis soda ethanol anthraquinone pulping; BAGASSE;
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：
Compared to prehydrolysis soda pulping, prehydrolysis soda ethanol pulping of cotton linters stabilizes the long-chain cellulose macromolecules against alkaline degradation. The presence of ethanol also results in a more open and accessible fine structure, higher chemical reactivity (in xanthation), and better viscose filterability. Prehydrolysis soda ethanol anthraquinone pulping results in a still higher stabilization of cellulose in cotton, a more open and accessible tine structure, higher chemical reactivity and a better viscose filterability. In this respect, the hydrochloric acid (HCl) is superior to the sulphuric acid (H(2)SO(4)). The prehydrolysis soda ethanol anthraquinone pulping method gives cotton linters with better chemical reactivity than that of commercial softwood pulp.
引用
收藏
页码：419 / 426
页数：8
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