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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. 6 figs.

Inventors:
Issue Date:
Research Org.:
Lockheed Martin Energy Syst Inc
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
321177
Patent Number(s):
5,843,764
Application Number:
PAN: 8-375,200
Assignee:
Martin Marietta Energy Systems, Inc., Oak Ridge, TN (United States) PTO; SCA: 320305; PA: EDB-99:029789; SN: 99002058517
DOE Contract Number:  
AC05-84OR21400
Resource Type:
Patent
Resource Relation:
Other Information: PBD: 1 Dec 1998
Country of Publication:
United States
Language:
English
Subject:
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; CELLULOSE; FIBERS; INKS; REMOVAL; PAPER; RECYCLING; ENZYMATIC HYDROLYSIS; CELLULASE; FILTRATION; MATERIALS RECOVERY

Citation Formats

Woodward, J. Method for separating the non-inked cellulose fibers from the inked cellulose fibers in cellulosic materials. United States: N. p., 1998. Web.
Woodward, J. Method for separating the non-inked cellulose fibers from the inked cellulose fibers in cellulosic materials. United States.
Woodward, J. Tue . "Method for separating the non-inked cellulose fibers from the inked cellulose fibers in cellulosic materials". United States.
@article{osti_321177,
title = {Method for separating the non-inked cellulose fibers from the inked cellulose fibers in cellulosic materials},
author = {Woodward, J.},
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. 6 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1998},
month = {12}
}