Selective solvent extraction of cellulosic material
Patent
·
OSTI ID:864637
- Belmont, MA
- 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
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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/
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/