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

Farhad Zeinaly, Konstantin Gabov, Hadi Kanåni Sula, Arash Babavand, Pedro Fardim

    Forskningsoutput: TidskriftsbidragArtikelVetenskapligPeer review

    4 Nedladdningar (Pure)

    Sammanfattning

    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).

    OriginalspråkOdefinierat/okänt
    Sidor (från-till)422–432
    TidskriftNordic Pulp and Paper Research Journal
    Volym34
    Utgåva4
    DOI
    StatusPublicerad - 2019
    MoE-publikationstypA1 Tidskriftsartikel-refererad

    Nyckelord

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

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