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Some aspects on the activation of dissolving pulps and the influence on the reactivity in a following viscose stage
Karlstad University, Faculty of Technology and Science, Department of Chemical Engineering.
Karlstad University, Faculty of Technology and Science, Department of Chemical Engineering.
2013 (English)In: Cellulose Chemistry and Technology, ISSN 0576-9787, Vol. 47, no 3-4, 165-169 p.Article in journal (Refereed) Published
Abstract [en]

It was found that, for a dissolving pulp, an enzymatic pre-treatment with an endoglucanase prior to viscose preparation did not change the correlation between the gamma number of the viscose dope and the carbon disulphide charge. Thus, the pulp stoichiometry, or reactivity, was not changed by an endoglucanase pre-treatment. It has nevertheless previously been found that the pulp reactivity, measured either by Fock's test or as the filter clogging value (Kw), increased for the same type of enzyme pre-treatment. Thus, the pulp reactivity seems to be influenced by the analysis method employed.

Place, publisher, year, edition, pages
2013. Vol. 47, no 3-4, 165-169 p.
Keyword [en]
dissolving, pulp, DP, enzyme, gamma number, reactivity, viscose
National Category
Paper, Pulp and Fiber Technology
Research subject
Chemical Engineering
Identifiers
URN: urn:nbn:se:kau:diva-27134ISI: 000321403800003OAI: oai:DiVA.org:kau-27134DiVA: diva2:618850
Available from: 2013-04-30 Created: 2013-04-30 Last updated: 2016-10-06Bibliographically approved

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Östberg, LindaGermgård, Ulf
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