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Title: 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:
 [1]
  1. (Kingston, TN)
Issue Date:
Research Org.:
LOCKHEED MARTIN ENRGY SYST INC
OSTI Identifier:
872009
Patent Number(s):
5843764
Assignee:
Martin Marietta Energy Systems, Inc. (Oak Ridge, TN) ORNL
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 = {1998},
month = {1}
}

Patent:

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