申请人:The Queen's University of Belfast
公开号:EP2033973A1
公开(公告)日:2009-03-11
A process is described for the preparation of water-soluble cellulose hydrolysis products The process comprises admixing cellulose with an ionic liquid capable of solvating or dissolving at least some of the cellulose, said ionic liquid being a compound comprised solely of cations and anions and which exists in a liquid state at a temperature at or below 150°C, and in which the anions are selected from sulfate, hydrogen sulfate and nitrate; and treating the resulting solvate or solution with an acid in the presence of water, said acid having a pKa in water of less than 2 at 25°C.
本发明描述了一种制备水溶性纤维素水解产物的工艺,该工艺包括将纤维素与能够溶解或溶解至少部分纤维素的离子液体混合,所述离子液体是一种仅由阳离子和阴离子组成的化合物,在温度为 150°C 或以下时以液态存在,其中阴离子选自硫酸盐、硫酸氢和硝酸盐;在有水的情况下,用酸处理所得到的溶解物或溶液,所述酸在水中的 pKa 值在 25°C 时小于 2。