Study of the possible use of intermediate flax as rave material for production of cellulose

被引：7
|
作者：
Izgorodin, AK [1 ]
Konoplev, YV
Zakharov, AG
Prusov, AN
Voronova, MI
Volkova, I
机构：
[1] Ivanovo State Text Acad, Ivanovo, Russia
[2] Russian Acad Sci, Inst Chem Solut, Ivanovo, Russia
来源：
FIBRE CHEMISTRY | 2004年 / 36卷 / 05期
关键词：
Hydrogen; Sodium; Polymer; Cellulose; Hydrogen Peroxide;
D O I：
10.1007/s10692-005-0006-8
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
In treating intemediate flax with concentrated solutions (greater than 5M) of sodium hydroxide, crystalline regions of cellulose totally pass. from modification CI to modification CII, despite the presence: of contaminants (lignin, hemicellulose, etc.). The presence of hydrogen peroxide in basic solutions shifts the beginning of the CI -> CII phase transition toward higher concentrations of sodium hydroxide. A sufficiently high degree of purification of intermediate, flax (similar to 93% cellulose content) can be attained in two-step treatment including acid peroxide cooking in the first stage and alkaline cooking in the second stage and in alkaline-peroxide cooking.
引用
收藏
页码：343 / 347
页数：5
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