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Photobleaching of eucalyptus kraft pulps. Thermogravimetric monitoring

Author
Barneto, A.; Ariza, M.; Vidal, T.; Ariza, J.
Type of activity
Presentation of work at congresses
Name of edition
13th European Workshop on Lignocellulosics and Pulp
Date of publication
2014
Presentation's date
2014-06-25
Book of congress proceedings
Proceedings of the 13th European workshop on Lignocellulosics and pulp
First page
195
Last page
198
Repository
http://hdl.handle.net/2117/23467 Open in new window
URL
http://www.irnas.csic.es/users/delrio/Proceedings-13thEWLP.pdf Open in new window
Abstract
This study assesses the potential of UV light as method to bleach eucalyptus pulps in different steps of their chemical bleaching process in a pulp mill. Higher brightness increasing were obtained on dirtier pulps, that is, alkaline washed and oxygen delignified pulps. In any case, photobleaching shows first-order kinetics. Rate of chromophores removal is proportional to the chromophores content in fiber surface. Complementarily, thermogravimetric analysis proved that UV light (400 nm wavelength...
Citation
Barneto, A. [et al.]. Photobleaching of eucalyptus kraft pulps. Thermogravimetric monitoring. A: European Workshop on Lignocellulosics and Pulp. "Proceedings of the 13th European workshop on Lignocellulosics and pulp". Sevilla: 2014, p. 195-198.
Group of research
CELBIOTECH - Research Group: Paper Engineering

Participants

  • Barneto, A. G.  (author and speaker )
  • Ariza, María  (author and speaker )
  • Vidal Llucia, Teresa  (author and speaker )
  • Ariza, J.  (author and speaker )