A method for treating a cellulosic material comprises extracting the cellulosic material with an extractant to selectively extract hemicellulose therein and separating the extracted hemicellulose to form a cellulosic product comprising less hemicellulose than the cellulose-containing material. The extractant comprises an ionic liquid and a non-solvent. The cellulosic product retains the cellulosic fiber morphology.
申请公布号
EP2885453(A2)
申请公布日期
2015.06.24
申请号
EP20130756957
申请日期
2013.08.20
申请人
CELANESE INTERNATIONAL CORPORATION
发明人
LI, RONGFU;MEHTA, JAY;TU, XIAOYAN;BANSAL, PRABUDDHA;COMBS, MICHAEL;FALLON, DENIS;KIZER, LAWTON E.