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| Format: | Artículo científico |
| Sprache: | en |
| Veröffentlicht: |
Universidade Federal de Viçosa
2005
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| Online-Zugang: | https://www.redalyc.org/articulo.oa?id=48829317 |
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Inhaltsangabe:
- Bleached kraft pulp production from Pinus tecunumanii (Eguiluz e Perry) Leonel F. Torres Roberto Melo Jorge Luiz Colodette Agrociencias kraft pulp ECF bleaching Pinus tecunumanii strength properties The use of 12-year-old Pinus tecunumanii (Eguiluz e Perry) grown in Colombia was evaluatedfor bleached kraft pulp production. Kraft pulps of kappa number 30 + 1 were produced, and oxygen delignifiedand bleached to 90% ISO with ECF processes. The bleached pulps produced under optimum conditions wereevaluated with regard to their strength properties. Pinus tecunumanii wood required low effective alkali chargeto reach the desired kappa number and the unbleached pulp showed high oxygen delignification efficiencyand bleachability when a OD(EO)DED sequence was used. The bleached pulps presented good physical-mechanicalproperties, which are comparable to those obtained with more traditional pines such as Pinus taeda and Pinusradiata. The results demonstrate that this tropical pine species is a suitable raw material for bleached kraftpulp production. 2005 artículo científico 0100-6762 https://www.redalyc.org/articulo.oa?id=48829317 en http://www.redalyc.org/revista.oa?id=488 Revista Árvore application/pdf Universidade Federal de Viçosa Revista Árvore (Brasil) Num.3 Vol.29