Paper making and fiber liberation – Processes of chemical liberation – recovery or purification... – Treatment with particular chemical
Patent
1990-05-16
1991-10-08
Hastings, Karen M.
Paper making and fiber liberation
Processes of chemical liberation, recovery or purification...
Treatment with particular chemical
162 13, 435278, D21C 300, D21C 320, C12R 1645
Patent
active
050551590
ABSTRACT:
A method of using biological processes as a pretreatment step in combined biological and mechanical paper pulping process is described. The process uses a species of fungus, Ceriporiopsis subvermispora, which has not previously been used for this purpose. It has been found that even with a non-optimized system, and with the stationary holding of the wood chips during fungal incubation, that significant savings in energy usage in the pulping process can be achieved compared to conventional mechanical pulping while simultaneously achieving increased strength characteristics in the paper.
REFERENCES:
patent: 3962033 (1976-06-01), Eriksson et al.
patent: 4687745 (1987-08-01), Farrel
Akamatsu, I. et al., "Influence of White-Rot Fungi on Poplar Chips and Thermomechanical Pulping of Fungi-Treated Chips," Journal of Japan Wood Research Society, 30(8) pp. 697-702 (1984) and translation.
Ander, P. and K. E. Eriksson, "Mekanisk massa fran forrotad flisen inledande undersokning," Svensk Papperstidning, 18:641 (1975).
Blanchette, R. A., "Screening Wood Decayed by White-Rot Fungi for Preferential Lignin Degradation," Applied & Environmental Microbiology, 48(3):647-653 (1984).
Blanchette, R. A. and T. A. Burnes, "Selection of White-Rot Fungi for Biopulping," Biomass, 15:93-101 (1988).
Eriksson, K. E. et al., "A Scanning Electron Microscopy Study of the Growth and Attack on Wood by Three White-Rot Fungi and their Cellulase-Less Mutants," Holzforschung, 34:207-213 (1980).
Eriksson, K. E. and L. Vallander, "Properties of Pulps from Thermomechanical Pulping of Chips Pretreated with Fungi," Svensk Paperstidning, No. 6-1982 85 (1982) R33-R38.
Eriksson, K. E., "Swedish Developments in Biotechnology Related to the Pulp and Paper Industry," Tappi, pp. 46-55, Jul., 1985.
Kirk, T. K. and H-M Chang, "Potential Applications of Bioligninolytic Systems," Enzyme Microb. Technol., 3:189-196 (1981).
Kirk, T. K. et al., "Biotechnicology: Applications and Implications for the Pulp and Paper Industry," Tappi, 66(5):45 (1983).
Leatham, G. F., "A Chemically Defined Medium for the Fruiting of Lentinus edodes,"Mycologia, 75(5):905-908 (1983).
Leatham, G. F. et al., "Energy Savings in Biomechanical Pulping," presented at Biotechnology in the Pulp and Paper Industry 4th International Conference, Raleigh, N.C., May 16-19, 1989.
Leatham et al., "Biomechanical Pulping of Aspen Chips: Paper Strength and Optical Properties Resulting from Different Fungal Treatments," preprint, Nov., 1988.
Myers et al., "Fungal Pretreatment of Aspen Chips Improves Strength of Refiner Mechanical Pulp," Tappi, pp. 105-108, May, 1988.
Nakasone, K. K., "Cultural Studies on Poria cinerascens, P rivulosa, and P. subvermispora," Mycotaxon, 13:105-111 (1981).
Otjen, L. et al., "Assessment of 30 White-Rot Basidiomycetes for Selective Lignin Degradation", Holzforschung, 41:343-349 (1987).
Otjen, L. and R. A. Blanchette, "Selective Delignification of Aspen Wood Blocks in Vitro by Three White-Rot Basidiomycetes," Applied and Environmental Microbiology, 50(3):568-572 (1985).
Sachs, I. B. et al., Biomechanical Pulping of Aspen Chips by Phanerochaete Chrysosporium; Fungal Growth Pattern and Effects on Wood Cell Walls, J. Soc. of Wood Sci. and Tech., 21(4):331 (1989).
Samuelsson, L. et al., "Influence of Fungal Treatment of the Strength Versus Energy Relationship in Mechanical Pulping," Svensk Papperstidning, 83:221-225 (1980).
Akhtar Masood
Attridge Michael
Blanchette Robert A.
Leatham Gary F.
Myers Gary C.
Hastings Karen M.
Wisconsin Alumni Research Foundation
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