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Sorption of kraft lignin from spent liquors on fibres.
Mid Sweden University, Faculty of Science, Technology and Media, Department of Natural Sciences.ORCID iD: 0000-0003-3407-7973
2004 (English)In: Eighth European Workshop on lignocellulosics and pulp : utilization of lignocellulosics and by-products of pulping ; August 22-25,2004 ; proceedings: Workshop on Lignocellulosics and Pulp (EWLP) ; 8 (Riga) : 2004.08.22-25, Riga: Institute of Wood Chemistry , 2004, 562- p.Conference paper, (Other scientific)
Abstract [en]

In this investigation sorption of kraft lignin (KL) from spent liquors, membrane filtrated and model KL liquors onto fully bleached TCF softwood kraft pulp fibres was studied. The time, temperature and alkalinity during the sorption experiments were chosen to reflect black liquor impregnation of chips before the cooking operation. The amount sorbed KL was estimated by brightness and kappa number measurements. 1H PFG NMR self-diffusion measurements were applied in situ on the industrial spent liquors to determine differences in molecular mass distributions of KL between the membrane filtrated and feed liquors. The influences of KL concentration, metal ion profile and KL molecular weight distribution in black liquor impregnation as well as conventional kraft cooking are discussed.

Place, publisher, year, edition, pages
Riga: Institute of Wood Chemistry , 2004. 562- p.
Keyword [en]
kraft lignin, cellulose, sorption, black liquor, NPE
National Category
Chemical Engineering
Identifiers
URN: urn:nbn:se:miun:diva-2601Local ID: 1956ISBN: 9984-19-611-9 (print)OAI: oai:DiVA.org:miun-2601DiVA: diva2:27633
Available from: 2008-09-30 Created: 2008-09-30Bibliographically approved

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