Method for separating the non-inked cellulose fibers from the inked cellulose fibers in cellulosic materials
Abstract
A method for enzymatically separating the non-inked cellulose fibers from the inked cellulose fibers in cellulosic materials. The cellulosic material, such as newsprint, is introduced into a first chamber containing a plastic canvas basket. This first chamber is in fluid communication, via plastic tubing, with a second chamber containing cellobiase beads in a plastic canvas basket. Cellulase is then introduced into the first chamber. A programmable pump then controls the flow rate between the two chambers. The action of cellulase and stirring in the first chamber results in the production of a slurry of newsprint pulp in the first chamber. This slurry contains non-inked fibers, inked fibers, and some cellobiose. The inked fibers and cellobiose flow from the first chamber to the second chamber, whereas the non-inked fibers remain in the first chamber because they are too large to pass through the pores of the plastic canvas basket. The resulting non-inked and inked fibers are then recovered.
- Inventors:
-
- Kingston, TN
- Issue Date:
- Research Org.:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- OSTI Identifier:
- 872009
- Patent Number(s):
- 5843764
- Assignee:
- Martin Marietta Energy Systems, Inc. (Oak Ridge, TN)
- Patent Classifications (CPCs):
-
D - TEXTILES D21 - PAPER-MAKING D21C - PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02W - CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- DOE Contract Number:
- AC05-84OR21400
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- method; separating; non-inked; cellulose; fibers; inked; cellulosic; materials; enzymatically; material; newsprint; introduced; chamber; containing; plastic; canvas; basket; fluid; communication; via; tubing; cellobiase; beads; cellulase; programmable; pump; controls; flow; rate; chambers; action; stirring; results; production; slurry; pulp; contains; cellobiose; remain; pass; pores; resulting; recovered; plastic tubing; cellulosic material; cellulosic materials; flow rate; fluid communication; chamber containing; cellulose fibers; non-inked cellulose; cellulose fiber; inked cellulose; /435/
Citation Formats
Woodward, Jonathan. Method for separating the non-inked cellulose fibers from the inked cellulose fibers in cellulosic materials. United States: N. p., 1998.
Web.
Woodward, Jonathan. Method for separating the non-inked cellulose fibers from the inked cellulose fibers in cellulosic materials. United States.
Woodward, Jonathan. Thu .
"Method for separating the non-inked cellulose fibers from the inked cellulose fibers in cellulosic materials". United States. https://www.osti.gov/servlets/purl/872009.
@article{osti_872009,
title = {Method for separating the non-inked cellulose fibers from the inked cellulose fibers in cellulosic materials},
author = {Woodward, Jonathan},
abstractNote = {A method for enzymatically separating the non-inked cellulose fibers from the inked cellulose fibers in cellulosic materials. The cellulosic material, such as newsprint, is introduced into a first chamber containing a plastic canvas basket. This first chamber is in fluid communication, via plastic tubing, with a second chamber containing cellobiase beads in a plastic canvas basket. Cellulase is then introduced into the first chamber. A programmable pump then controls the flow rate between the two chambers. The action of cellulase and stirring in the first chamber results in the production of a slurry of newsprint pulp in the first chamber. This slurry contains non-inked fibers, inked fibers, and some cellobiose. The inked fibers and cellobiose flow from the first chamber to the second chamber, whereas the non-inked fibers remain in the first chamber because they are too large to pass through the pores of the plastic canvas basket. The resulting non-inked and inked fibers are then recovered.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Thu Jan 01 00:00:00 EST 1998},
month = {Thu Jan 01 00:00:00 EST 1998}
}
Works referenced in this record:
Enzymatic deinking of colored offset newsprint
journal, May 1993
- Prasad, D. Y.; Heitmann, John A.; Joyce, Thomas W.
- Nordic Pulp & Paper Research Journal, Vol. 8, Issue 2
The inhibition of ?-glucosidase activity inTrichoderma reesei C30 cellulase by derivatives and isomers of glucose
journal, July 1981
- Woodward, Jonathan; Arnold, Susan L.
- Biotechnology and Bioengineering, Vol. 23, Issue 7