Selective solvent extraction of cellulosic material

Patent · Sat Jan 01 00:00:00 EST 1983

OSTI ID:864637

Wang, Daniel I. C. ^[1]; Avgerinos, George C ^[2]

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1. Belmont, MA
2. Newton Center, MA

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.degree. and about 70.degree. C. and for a time period between about 2 and about 80 hours.

• Research Organization: National Renewable Energy Laboratory (NREL), Golden, CO (United States)
• DOE Contract Number: XR-9-8109-1; EG-77-C-01-4042
• Assignee: Massachusetts Institute of Technology (Cambridge, MA)
• Patent Number(s): US 4395543
• Application Number: 06/292,314
• OSTI ID: 864637
• Country of Publication: United States
• Language: English

Related Subjects

selective
solvent
extraction
cellulosic
material
products
hemicellulose
lignin
weight
ratio
obtained
extracting
composition
basic
ethanol-water
solution
ph
12
14
temperature
15
degree
70
time
period
80
hours
cellulosic material
solvent extraction
time period
weight ratio
water solution
selective solvent
solvent extract
/999/127/