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Oxalic acid formation during ECF and TCF bleaching of kraft pulp
KTH, School of Chemical Science and Engineering (CHE), Fibre and Polymer Technology, Wood Chemistry and Pulp Technology.
KTH, School of Chemical Science and Engineering (CHE), Fibre and Polymer Technology, Wood Chemistry and Pulp Technology.
1997 (English)In: Proceedings Minimum Effluent Mills Symposium, 1997, 63-66 p.Conference paper, Published paper (Refereed)
Abstract [en]

The formation of oxalic acid (I) during bleaching of softwood kraft pulp was studied.  Bleaching agents used were O, H2O2, ClO2, peracetic acid (II), and O3.  The formation of I acid increased linearly with the decrease in kappa no.  II bleaching gave less I than the other bleaching agents.  In O3 bleaching ∼1/3 of the formed I was adsorbed on the pulp and not released until a later stage.

Place, publisher, year, edition, pages
1997. 63-66 p.
National Category
Polymer Technologies Polymer Chemistry
Identifiers
URN: urn:nbn:se:kth:diva-82137OAI: oai:DiVA.org:kth-82137DiVA: diva2:497979
Conference
Minimum Effluent Mills Symposium, San Francisco, Oct. 23-24, 1997
Note
NR 20140805Available from: 2012-02-11 Created: 2012-02-11Bibliographically approved

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