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TCF bleaching of Eucalypt kraft pulp with oxone


Yaqoob, N and Stack, K and Nguyen, KL, TCF bleaching of Eucalypt kraft pulp with oxone, Appita Journal, 63, (5) pp. 381-386. ISSN 1038-6807 (2010) [Refereed Article]


TCF delignification and bleaching of kraft eucalypt pulp using ozone and oxone under alkaline conditions has been investigated. The pulp samples were bleached In two stages of oxone (Ox) treatment using an AZOx 1Ox 2 sequence. Pulp brightness greater than 84% ISO was achieved. The effects of oxone charge, alkali charge, bleaching temperature and time on the bleaching response were studied. The colour removal was determined from the chromaticity coordinates (L*, a* and b*) and 98% colour removal was achieved. Accelerated ageing experiments showed excellent brightness stability with very little brightness reversion (or thermal degradation) of the oxone treated pulp. Improvements In pulp strengths compared to ozone and acid treatments were achieved along with significant HexA removal demonstrating the feasibility of oxone in TCF bleaching.

Item Details

Item Type:Refereed Article
Research Division:Chemical Sciences
Research Group:Other chemical sciences
Research Field:Other chemical sciences not elsewhere classified
Objective Division:Manufacturing
Objective Group:Wood, wood products and paper
Objective Field:Paper products and pulp
UTAS Author:Yaqoob, N (Dr Naila Yaqoob)
UTAS Author:Stack, K (Dr Karen Stack)
ID Code:67388
Year Published:2010
Web of Science® Times Cited:9
Deposited By:Chemistry
Deposited On:2011-03-03
Last Modified:2014-11-21

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