| Título: | PAPERMAKING FIBERS FROM GIANT REED (ARUNDO DONAX L.) BY ADVANCED ECOLOGICALLY FRIENDLY PULPING AND BLEACHING TECHNOLOGIES |
| Autores: |
Shatalov, Anatoly A. Pereira, Hekena |
| Fecha: | 2007-08-23 |
| Publicador: | Bioresources |
| Fuente: |
 |
| Tipo: |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
| Tema: | Arundo donax L.; Giant reed; Non-wood fibers; Organosolv pulping; Totally chlorine free (TCF) bleaching; Biobleaching; Bleach boosting |
| Descripción: | The anatomical structure and chemical composition of the stem-wall material of giant reed is considered from the view-point of raw material characterization for industrial fiber production. The effect of stem morphology (nodes and internodes) on pulping results and general pulp properties is discussed. The advantages of application to giant reed of modern organic solvent based (organosolv) pulping technologies are shown in comparison with conventional (kraft) method. The conditions optimization for Ethanol-Alkali pulping (as a selected more potential organosolv process) is given, and the chemical kinetics of the principal macromolecular components during ethanol-alkali pulping is described. The bleachability of organosolv pulps by short totally chlorine free (TCF) bleaching sequences using hydrogen peroxide and ozone as the active bleaching chemicals without pulp pre-delignification is examined and compared with kraft pulp. The enzymatic pre-treatment of reed organosolv pulps by commercial xylanase preparation is considered as a possibility to improve pulp bleachability. |
| Idioma: | Inglés |