Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Use of chlorine dioxide and ozone in combination in prebleaching
KTH, Superseded Departments, Pulp and Paper Technology.
2002 (English)In: Journal of Pulp and Paper Science (JPPS), ISSN 0826-6220, Vol. 28, no 9, 305-310 p.Article in journal (Refereed) Published
Abstract [en]

(DZ)Eo prebleaching of oxygen-delignified softwood kraft pulp gave a synergistic delignification effect compared to the effect of chlorine dioxide and ozone Separately, and the (DZ)Eo process was somewhat better than (ZD)Eo prebleaching in terms of delignification. The solubilization of the lignin in chlorine dioxide and ozone bleaching seems to be governed by the large number of carboxyl groups introduced into the lignin structure. The efficient delignification obtained in (DZ)Eo prebleaching may be explained by the ability of chlorine dioxide and ozone to degrade different Apes of lignin structures. Whereas chlorine dioxide mainly degrades phenolic lignin structures, ozone is capable of degrading both phenolic and non-phenolic lignin structures. The (DZ) treatment initially allows chlorine dioxide to degrade the phenolic lignin structures, and leaves the non-phenolic and less reactive lignin structures for the ozone treatment.

Place, publisher, year, edition, pages
2002. Vol. 28, no 9, 305-310 p.
Keyword [en]
pretreatment, kraft pulps, softwood pulps, oxygen, delignification, bleached pulps, chlorine dioxide, ozone, performance evaluation, phenolic hydroxyl-groups, hexeneuronic acid groups, residual lignin, bleaching sequence, structural-changes, kraft cooking, wood, pulp
Identifiers
URN: urn:nbn:se:kth:diva-21968ISI: 000178597800004OAI: oai:DiVA.org:kth-21968DiVA: diva2:340666
Note
QC 20100525Available from: 2010-08-10 Created: 2010-08-10 Last updated: 2017-12-12Bibliographically approved

Open Access in DiVA

No full text

Search in DiVA

By author/editor
Gellerstedt, Göran
By organisation
Pulp and Paper Technology
In the same journal
Journal of Pulp and Paper Science (JPPS)

Search outside of DiVA

GoogleGoogle Scholar

urn-nbn

Altmetric score

urn-nbn
Total: 24 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf