Evaluation of new organosolv dissolving pulps. Part I: Preparation, analytical characterization and viscose processability |
| |
| Authors: | H Sixta H Harms S Dapia JC Parajo J Puls B Saake H-P Fink T Röder |
| |
| Institution: | (1) R&D Department, Lenzing AG, A-4860 Lenzing, Austria;(2) Department of Chemical Engineering, University of Vigo (Campus Ourense), Polytechnical Building, Ourense, Spain;(3) Federal Research Centre for Forestry and Forest, Institute of Wood Chemistry and Chemical Technology, Hamburg, Germany;(4) Fraunhofer-Institute for Applied Polymer Research, Geiselbergstr. 69, D-14513 Potsdam-Golm, Germany |
| |
| Abstract: | New acidic organosolv pulping processes, such as Acetosolv, Formacell and Milox, promise to have superior potential in terms of purification selectivity and specific investment costs. Consequently, a thorough investigation of these new acidic pulping processes in comparison to state-of-the-art acidic magnesium sulfite technology was conducted. The impact of pulping and bleaching parameters on the physical and chemical characteristics was studied to compare process efficiency and selectivity for each type of pulp made from Eucalypt wood. In addition to a detailed analysis of the chemical composition and physical properties on a molecular and supramolecular level, the TCF-bleached dissolving pulps were tested for their applicability in viscose fiber production. The influence of pulp properties as determined by standard and advanced analytical methods on process performance and selected fiber properties is emphasized. |
| |
| Keywords: | Acetosolv Acid sulfite Dissolving pulps Formacell Milox Organosolv Viscose processability |
| 本文献已被 SpringerLink 等数据库收录！ |
|
