Filtrate analysis as tool to follow peroxide bleaching performance

Tarja Tamminen, Marjatta Ranua, Benoit Dufour, Raimo Kokkonen, Seppo Kauliomäki

Research output: Contribution to journalArticleScientificpeer-review

Abstract

Industrial oxygen-delignified birch kraft pulp was bleached with alkaline hydrogen peroxide (P stage) after acid (A stage) or chelation (Q stage) pretreatments to remove detrimental metal residues. Pulp brightness correlated clearly with the manganese (Mn) content of the incoming pulp irrespective of the method used for the metal removal. Pulp viscosity after peroxide stage was not significantly affected by the Mn content, whereas the preceding A stage was detrimental to it. Some typical lignin degradation products, together with 2-furan carboxylic acid, were abundant in the peroxide stage filtrates after incomplete pretreatment. 2-furan carboxylic acid is easy to detect due to its UV activity, thus providing a potent marker compound for peroxide stage performance. Part of the 2-furan carboxylic acid in the P stage was explained as direct carry-over from the preceeding A and Q stages, but its content increased in the P stage possibly due to further reactions of some transient species remaining in the pulp after the pretreatment.
Original languageEnglish
Pages (from-to)82-91
JournalO Papel
Volume68
Issue number2
Publication statusPublished - 2007
MoE publication typeA1 Journal article-refereed

Fingerprint

filtrates
peroxides
bleaching
pulp
furans
carboxylic acids
pretreatment
manganese
metals
kraft pulp
chelation
Betula
hydrogen peroxide
lignin
viscosity
oxygen
degradation
acids
methodology

Keywords

  • Brightness
  • capillary electrophoresis
  • chelation
  • hydrogen peroxide
  • metal

Cite this

Tamminen, T., Ranua, M., Dufour, B., Kokkonen, R., & Kauliomäki, S. (2007). Filtrate analysis as tool to follow peroxide bleaching performance. O Papel, 68(2), 82-91.
Tamminen, Tarja ; Ranua, Marjatta ; Dufour, Benoit ; Kokkonen, Raimo ; Kauliomäki, Seppo. / Filtrate analysis as tool to follow peroxide bleaching performance. In: O Papel. 2007 ; Vol. 68, No. 2. pp. 82-91.
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Tamminen, T, Ranua, M, Dufour, B, Kokkonen, R & Kauliomäki, S 2007, 'Filtrate analysis as tool to follow peroxide bleaching performance', O Papel, vol. 68, no. 2, pp. 82-91.

Filtrate analysis as tool to follow peroxide bleaching performance. / Tamminen, Tarja; Ranua, Marjatta; Dufour, Benoit; Kokkonen, Raimo; Kauliomäki, Seppo.

In: O Papel, Vol. 68, No. 2, 2007, p. 82-91.

Research output: Contribution to journalArticleScientificpeer-review

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T1 - Filtrate analysis as tool to follow peroxide bleaching performance

AU - Tamminen, Tarja

AU - Ranua, Marjatta

AU - Dufour, Benoit

AU - Kokkonen, Raimo

AU - Kauliomäki, Seppo

PY - 2007

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KW - capillary electrophoresis

KW - chelation

KW - hydrogen peroxide

KW - metal

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M3 - Article

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Tamminen T, Ranua M, Dufour B, Kokkonen R, Kauliomäki S. Filtrate analysis as tool to follow peroxide bleaching performance. O Papel. 2007;68(2):82-91.