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