Reversible and non-reactive cellulose separations from ionic liquid mixtures with compressed carbon dioxide

被引:9
|
作者
Minnick, David L. [1 ]
Scurto, Aaron M. [1 ]
机构
[1] Univ Kansas, Dept Chem & Petr Engn, CEBC, Lawrence, KS 66045 USA
基金
美国国家科学基金会;
关键词
1-ETHYL-3-METHYLIMIDAZOLIUM ACETATE; DISSOLUTION; TEMPERATURE; BIOMASS; NMR; PRECIPITATION; REGENERATION; SOLUBILITY; COSOLVENT; INSIGHT;
D O I
10.1039/c5cc03519h
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
A novel physical (non-reactive) separation of cellulose from an ionic liquid (IL)/cosolvent mixture by compressed carbon dioxide is presented. The precipitation is completely reversible and rapid within small changes of pressure i.e. liquid phase CO2 composition. High pressure phase equilibrium, high pressure NMR, and solid state NMR have been utilized to understand the separation phenomena.
引用
收藏
页码:12649 / 12652
页数:4
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