Using Oxone and TAED activator in non-chlorine bleaching of soda bagasse pulp

A1 Journal article (refereed)


Internal Authors/Editors


Publication Details

List of Authors: Farhad Zeinaly, Konstantin Gabov, Hadi Kanåni Sula, Arash Babavand, Pedro Fardim
Publisher: Walter de Gruyter GmbH
Publication year: 2019
Journal: Nordic Pulp and Paper Research Journal
Journal acronym: NPPRJ
Volume number: 34
Issue number: 4
Start page: 422
End page: 432
eISSN: 2000-0669


Abstract

Bagasse fiber has been used in the production of bleached chemical pulp by the Pars Paper Company. In this company, a conventional three-stage sequence of hypochlorite, alkaline extraction and second hypochlorite (HEH) is applied in pulp bleaching. Pulp bleaching is one of the most important environmental pollutant stages in the pulp and paper industry. In this research, the bleaching of soda bagasse pulp by applying Oxone and TAED-activator in non-chlorine bleaching sequences has been investigated. The unbleached pulp, with kappa number of 20, 955 ml/g viscosity and 37 % brightness, was prepared from Pars Paper Company. Results indicated that, the TAED at the first and second stages were more effective than in the Oxone stages. Moreover, the sequences, which contained TAED- and Oxone-second-stage, could reach the minimum level of kappa (1.7), but the highest brightness (80 %) was attained by using only TAED with a comparatively high level of pulp viscosity (752).


Keywords

activated peroxide, bagasse pulp, Oxone, peroxy acid, soda pulp, Tetraacetylethylenediamine

Last updated on 2020-06-06 at 06:37