Paper making and fiber liberation – Processes of chemical liberation – recovery or purification... – Treatment with particular chemical
A process comprising treating a lignocellulosic material preferably pulp in the presence of a transition metal catalyst with a oxidizing agent selected from a group consisting of hydrogen peroxide, hypochlorite, hypochlorous acid and any combination thereof to form a treated lignocellulosic material having a viscosity equal to or less than about 17 cp and having reducing functional groups selected from the group consisting of aldehyde and aldehyde type functional groups at the C6 and C1 positions but predominating at the C1 position.
patent: 1860431 (1932-05-01), Richter
patent: 2368527 (1945-01-01), Edelstein
patent: 2975169 (1961-03-01), Cranford et al.
patent: 3707148 (1972-12-01), Bryce
patent: 4222819 (1980-09-01), Fossum et al.
patent: 4410397 (1983-10-01), Kempf
patent: 4661205 (1987-04-01), Ow et al.
patent: 4889595 (1989-12-01), Herron et al.
patent: 5300358 (1994-04-01), Evers
patent: 5766159 (1998-06-01), Martin et al.
patent: 6063982 (2000-05-01), Martin et al.
patent: 6379494 (2002-04-01), Jewell et al.
patent: 6605350 (2003-08-01), Sealey et al.
patent: 6635755 (2003-10-01), Jaschinski et al.
patent: 6695950 (2004-02-01), Cimecioglu et al.
patent: 6765042 (2004-07-01), Thornton et al.
patent: 6852904 (2005-02-01), Sun et al.
patent: 2003/0026828 (2003-02-01), Besemer et al.
patent: 2005/0061455 (2005-03-01), Tan et al.
patent: 1129161 (1982-08-01), None
patent: 1156065 (2001-11-01), None
patent: 2688787 (1993-09-01), None
patent: 2003131266 (2005-05-01), None
patent: WO 95/35408 (1995-12-01), None
Zeronian et al., Bleaching of cellulose by hydrogen peroxide, 1995, Cellulose, whole document.
Lenntech, http://www.lenntech.com/Fenton-reaction.htm [downloaded from www.archive.org], Jun. 28, 2003 [downloaded on Jun. 19, 2008], whole document.
Burgess, Relationship Between Colour Production in Cellulose and the Chemical Changes Brought about by Bleaching, 1982, The American Institute for Conservation, vol. 1, p. 4 figure 4.
Shenai, Studies in Chemically Modified Celluloses. IX. Oxidation of Cellulose in the Presence of Chelating Agents, 1976, Journal of Applied Polymer Science, vol. 20, whole document.
Smook, Handbook for Pulp and Paper Technologists, 1992, Angus Wilde Publications, 2nd edition, p. 228.
Gullichsen et al., Chemical Pulping 6A, 1999, Fapet Oy, p. A207 and A653.
Fibersource, Cellulose [downloaded online from http://www.fibersource.com/F-TUTOR/cellulose.htm], downloaded on Jan. 16, 2010, Fibersource, whole document.
Kubelka et al., Delignification with Acidic Hydrogen Peroxide Activated by Molybdate, 1992, Journal of Pulp and Paper Science, whole document.
Barnes, III Thomas W.
International Paper Company
Miller Amy L.
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