Paper making and fiber liberation – Processes of chemical liberation – recovery or purification... – With regeneration – reclamation – reuse – recycling or...
Reexamination Certificate
2011-02-22
2011-02-22
Hug, Eric (Department: 1741)
Paper making and fiber liberation
Processes of chemical liberation, recovery or purification...
With regeneration, reclamation, reuse, recycling or...
C162S017000, C162S020000, C162S025000, C162S078000, C162S081000, C162S090000, C162S091000, C162S094000, C162S096000, C162S098000
Reexamination Certificate
active
07892397
ABSTRACT:
A process for producing dissolving pulp includes a degumming step using a degumming liquor which includes hydrogen peroxide and ammonia.
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Efanov, M.V. et al., Peroxide-Amonia Delignification of Pine Wood, Chemistry of Natural Compounds, 2004, pp. 172-175, vol. 40, No. 2, Plenem Publishing Corporation, Russia.
Kim, Jun Seok, et al., Pretreatment of Wastepaper and Pulp Mill Sludge by Aqueous Ammonia and Hydrogen Peroxide, Applied Biochemistry and Biotechnology, 2000, pp. 129-139, vol. 84-86, Humana Press Inc.
Chute Wade
Luo Keith
Alberta Innovates - Technology Futures
Bennett Jones LLP
Chin Peter
Hug Eric
LandOfFree
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