Paper making and fiber liberation – Processes of chemical liberation – recovery or purification... – Treatment with particular chemical
Patent
1995-04-03
1996-06-25
Czaja, Donald E.
Paper making and fiber liberation
Processes of chemical liberation, recovery or purification...
Treatment with particular chemical
162 78, D21C 304, D21C 916
Patent
active
055296637
ABSTRACT:
Disclosed is a method for the delignification of lignocellulosic materials with acidic solutions of peroxymonophosphoric acid for the delignification and brightening of cellulosic pulps in bleaching; for the production of cellulosic pulps for use in paper making and in regenerated cellulose products; for enhancing the properties of recycled cellulosic fibers and for use in animal feeds and other products where removal or degradation of lignin is beneficial.
REFERENCES:
patent: 4666622 (1987-05-01), Martin et al.
patent: 5004523 (1991-04-01), Springer et al.
Christopher J. Biermann, "Essentials of Pulping and Papermaking", Department of Forest Products and Center for Advanced Materials Research, Oregon, 1993, pp. 81-82, 86-87.
Sven A. Rydholm, "Pulping Process", Forest Products Laboratory, Wisconsin, 1965, pp. 308-309, pp. 674-675, 677.
Edward L. Springer, "Potential uses for Peroxymonosulfate in Pulping and Bleaching", Proceedings of the 1989 and 1990 Alche Forest Products Symposium, San Francisco, Chicago, and Atlanta, pp. 113-116.
Edward L. Srpinger, "Delignification of Aspen Wood with Pernitric Acid", Jun. 1994, Tappi Journal, vol. 77, No. 6, pp. 103, 108.
James P. Casey, "Pulp and Paper Chemistry and Chemical Technology", Forest Products Laboratory, Third Edition, vol. I. Wisconsin, p. 162.
G. A. Smook, Handbook for Pulp & Paper Technologists, Atlanta and Georgia, 1989, pp. 37-39.
Edward L. Springer, "Delignification of Aspen Wood Using Hydrogen Peroxide and Peroxymonosulfate", Jan. 1990, Tappi Journal, p. 175.
Edward L. Springer and James L. Minor, "Delignification of Wood Fibers with Peroxymonosulfate", Paper and Timber, p. 968.
Edward L. Springer and James L. Minor, "Improved Penetration of Pulping Reagents into Wood", Paper and Timber, 1993, vol. 75, No. 4.
"Bleached Pulp by Peroxyacid/Alkaline Peroxide Delignification", Paper and Timber, 1986.
Czaja Donald E.
Fado John D.
Nguyen Dean T.
Silverstein M. Howard
Stockhausen Janet I.
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