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Acid hydrogen peroxide treatment of Norway spruce TMP: The effect of chelated ferric ions
AkzoNobel Pulp and Performance Chemicals, Bohus, Sweden.
Mid Sweden University, Faculty of Science, Technology and Media, Department of Chemical Engineering. AkzoNobel Pulp and Performance Chemicals, Bohus, Sweden.
Mid Sweden University, Faculty of Science, Technology and Media, Department of Chemical Engineering.
2014 (English)In: International Mechanical Pulping Conference, IMPC 2014, Paper Engineer's Association (PI) , 2014Conference paper, Published paper (Refereed)
Abstract [en]

The effect of treating thermomechanical pulp with Fenton chemistry was evaluated in a model study. Ferrous ions and chelated ferric ions were compared as catalysts while initial pH was varied. The results showed that a catalyst of ferrous sulphate had a greater impact on the pulp (increased total fibre charge and carbonyl groups, more dissolved organic material in filtrate) than ferric ions chelated with EDTA. If using ferric-EDG as catalyst, the hydrogen peroxide consumption was higher and more hydroxyl radicals were detected compared to if using ferrous sulphate. Ferric-EDG, however, gave similar or less effect on the pulp.

Place, publisher, year, edition, pages
Paper Engineer's Association (PI) , 2014.
National Category
Chemical Engineering
Identifiers
URN: urn:nbn:se:miun:diva-24077Scopus ID: 2-s2.0-84923974861ISBN: 9780000000002 (print)OAI: oai:DiVA.org:miun-24077DiVA: diva2:777041
Conference
International Mechanical Pulping Conference, IMPC 2014; Helsinki; Finland; 2 June 2014 through 5 June 2014; Code 109275
Note

Export Date: 7 January 2015

Available from: 2015-01-08 Created: 2015-01-07 Last updated: 2015-08-12Bibliographically approved

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