Bleached kraft pulp production from Pinus tecunumanii (Eguiluz e Perry)

Revista Árvore

Leonel F. Torres²  Roberto Melo¹  Jorge Luiz Colodette² 

[1] ,Universidade Federal de Viçosa Pulp and Paper Laboratory Viçosa MG ,Brazil

关键词: Pinus tecunumanii;    kraft pulp;    ECF bleaching;    strength properties;    Pinus tecunumanii;    polpa de kraft;    ECF branqueado;    propriedades de força;   

DOI  :  10.1590/S0100-67622005000300017

来源: SciELO

【 摘 要 】

The use of 12-year-old Pinus tecunumanii (Eguiluz e Perry) grown in Colombia was evaluated for bleached kraft pulp production. Kraft pulps of kappa number 30 ± 1 were produced, and oxygen delignified and bleached to 90% ISO with ECF processes. The bleached pulps produced under optimum conditions were evaluated with regard to their strength properties. Pinus tecunumanii wood required low effective alkali charge to reach the desired kappa number and the unbleached pulp showed high oxygen delignification efficiency and bleachability when a OD(EO)DED sequence was used. The bleached pulps presented good physical-mechanical properties, which are comparable to those obtained with more traditional pines such as Pinus taeda and Pinus radiata. The results demonstrate that this tropical pine species is a suitable raw material for bleached kraft pulp production

【 授权许可】

CC BY   
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