Totally chlorine-free bleaching of Acetosolv pulps: a clean approach to dissolving pulp manufacture
✍ Scribed by Severino Abad; Valentín Santos; Juan Carlos Parajó
- Publisher
- Wiley (John Wiley & Sons)
- Year
- 2001
- Tongue
- English
- Weight
- 127 KB
- Volume
- 76
- Category
- Article
- ISSN
- 0268-2575
- DOI
- 10.1002/jctb.494
No coin nor oath required. For personal study only.
✦ Synopsis
Abstract
Eucalyptus globulus wood samples were delignified in media containing concentrated acetic acid, water and hydrochloric acid (Acetosolv process) under optimized conditions, and the pulps were subjected to totally chlorine‐free (TCF) bleaching. Alkaline extractions, oxygen delignification, ozone treatment, enzymatic xylan removal and hydrogen peroxide oxidation in alkaline media were investigated as individual steps in selected bleaching sequences. Under the best conditions, fully bleached pulps with favourable characteristics for dissolving pulp manufacture were obtained.
© 2001 Society of Chemical Industry