Selective solvent extraction of cellulosic material

Patent · Tue Jul 26 00:00:00 EDT 1983

OSTI ID:7258561

Wang, D I.C.; Avgerinos, G C

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: XR-9-8109-1; 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
• Resource Relation: Patent File Date: 12 Aug 1981
• Country of Publication: United States
• Language: English

Related Subjects

09 BIOMASS FUELS
CELLULOSE
SOLVENT EXTRACTION
CONCENTRATION RATIO
DELIGNIFICATION
KINETICS
CARBOHYDRATES
EXTRACTION
ORGANIC COMPOUNDS
POLYSACCHARIDES
SACCHARIDES
SEPARATION PROCESSES
090900* - Biomass Fuels- Processing- (1990-)