Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Selective solvent extraction of cellulosic material

Patent ·
OSTI ID:7258561

Cellulosic products having a high hemicellulose to lignin weight ratio are obtained by extracting a cellulosic composition with basic ethanol-water solution having a pH between about 12 and about 14 at a temperature between about 15 and about 70 C and for a time period between about 2 and about 80 hours. 6 figs.

DOE Contract Number:
EG-77-C-01-4042
Assignee:
Massachusetts Inst. of Tech., Cambridge, MA (United States)
Patent Number(s):
US 4395543; A
Application Number:
PPN: US 6-292314
OSTI ID:
7258561
Country of Publication:
United States
Language:
English