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Flöden och fasfördelning för extraktivämnen i moderna blekerier

Date: 1.4.1998-31.12.2000
Code: 2776
Department: Åbo Akademi University / Faculty of Chemical Engineering (KTF), Laboratory of Forest Products Chemistry
Address: Porthansgatan 3, FIN-20500 Åbo
Phone +358-2-2154 229
Fax +358-2-254 868
E-mail bjarne.holmbom@abo.fi
Project leader: TkD Bjarne Holmbom, professor (1.4.1998-31.12.2000)
Researchers: DI Eija Bergelin (1.4.1999-31.12.2000)
Type of research: 1 (0=Within duty, 1=Ordered research, 2=Co-operation)
- basic research 50 %
- applied research 50 %
Foreign funding organizations: Nordisk Industrifond, Oslo (Nyckel till blekerislutning)
Man months: 6 months in 1998; Totally: 30 months
Partners: STFI: Skogsindustrins Tekniska Forskningsinstut, Stockholm, Sweden, PFI: Papirforskningsinstituttet, Oslo KCL: Keskuslaboratorio / Centrallaboratorium, Helsingfors, Finland
Keywords: massatillverkning, extraktion, hartser, blekning, massavalmistus, uutto, hartsit, valkaisu, extraktivämnen, harts, blekning, sulfatmassa, avloppsvatten, extractives, resin, bleaching, kraft pulp, effluents,

Modification and distribution of various extractives will be analysed in some modern kraft pulp bleach plants in the Nordic countries.Both softwood and hardwood pulps will be investigated.Analyses will be performed of individual extractive components in order to obtain material balances for individual components over different bleaching stages.

Publication(s)

11.3.1996 / 31.5.1999