Invention Application
- Patent Title: METHODS FOR REMOVING HEMICELLULOSE
- Patent Title (中): 去除半纤维素的方法
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Application No.: PCT/US2013/055838Application Date: 2013-08-20
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Publication No.: WO2014031672A2Publication Date: 2014-02-27
- Inventor: LI, Rongfu , MEHTA, Jay , TU, Xiaoyan , BANSAL, Prabuddha , COMBS, Michael , FALLON, Denis , KIZER, Lawton E.
- Applicant: CELANESE INTERNATIONAL CORPORATION
- Applicant Address: 222 W. Las Colinas Blvd. Suite 900N Irving, Texas 75039 US
- Assignee: CELANESE INTERNATIONAL CORPORATION
- Current Assignee: CELANESE INTERNATIONAL CORPORATION
- Current Assignee Address: 222 W. Las Colinas Blvd. Suite 900N Irving, Texas 75039 US
- Agency: KENNEDY, Nicoletta et al.
- Priority: US61/684,993 20120820; US13/827,881 20130314; US13/827,767 20130314
- Main IPC: D21C3/04
- IPC: D21C3/04
Abstract:
A method for treating a cellulosic material comprising 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.
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