Glucuronoxylan-derived chlorinated compounds in filtrates from chlorine dioxide bleaching: a comparative study between eucalypt (E-globulus) and birch (Betula spp.) kraft pulps

resumo

Eucalyptus globulus and Betula spp kraft pulps were submitted to a D0E1D1E2D2 bleaching stage and the ethyl acetate extracts of D filtrates analysed by GC-MS. In both species, significant amounts of glucuronoxylan-derived chlorinated compounds were detected, particularly in D-0 and D-1 stages, contributing 17 to 34% of the corresponding AOX. The influence of the nature of the glucuronoxylan of these two species in the amount of chlorinated derivatives formed is discussed.

palavras-chave

AOX

categoria

Materials Science

autores

Freire, CSR; Silvestre, AJD; Neto, CP; Cavaleiro, JAS

nossos autores

Partilhe este projeto

Publicações similares

Usamos cookies para atividades de marketing e para lhe oferecer uma melhor experiência de navegação. Ao clicar em “Aceitar Cookies” você concorda com nossa política de cookies. Leia sobre como usamos cookies clicando em "Política de Privacidade e Cookies".