Caracterização química do "pitch" em indústria de celulose e papel de Eucalyptus

Química Nova

Mariluze P. Cruz²  Luiz C. A. Barbosa²  Célia R. A. Maltha²  José L. Gomide¹  Augusto F. Milanez¹ 

[1] ,Universidade Federal de Viçosa Departamento de Química Viçosa MG ,Brasil

关键词: pitch;    talc;    wood extractive;   

DOI  :  10.1590/S0100-40422006000300011

来源: SciELO

【 摘 要 】

The chemical analysis of the acetone, chloroform, toluene and methanol extracts of a pitch sample was carried out by IR and GC-MS, leading to the identification of sixty nine compounds, including fatty acids, alcohols and hydrocarbons. Analysis of the acetone extractive of a eucalyptus wood used in Brazil for pulp production was also carried out, resulting in identification of fifty nine compounds, including mainly fatty acids, phenolic compounds, beta-sitosterol and other steroids. This analysis showed that pitch formation had a contribution from wood extractives and other sources of contamination. The results obtained and the methodology applied can be used by the pulp industry to develop new methods of pitch control.

【 授权许可】

CC BY-NC   
 All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License