Influence of pitch composition and wood substances on the phase distribution of resin and fatty acids at different pH levels

A. Strand, Anna Sundberg, Lari Vähäsalo, Bjarne Holmbom

    Tutkimustuotos: LehtiartikkeliArtikkeliTieteellinenvertaisarvioitu

    15 Sitaatiot (Scopus)

    Abstrakti

    Pitch emulsions were prepared to mimic the colloidal wood resin system in paper mill process waters. The phase distribution of resin and fatty acids (RFAs) between the colloidal lipophilic droplets (l) and the water phase (w) were determined as pKlw values. The effect of triglyceride to RFA ratio on pKlw values was studied, to determine if seasonal variations in wood extractives influence their phase distribution. The effect of water-soluble hemicelluloses on pKlw values was also determined. The pKlw values of the RFAs were lower in emulsions with a low triglyceride to RFA ratio. Addition of water-soluble galactoglucomannans also lowered the pKlw values of the RFAs.
    AlkuperäiskieliEi tiedossa
    Sivut702–709
    Sivumäärä8
    JulkaisuJournal of Dispersion Science and Technology
    Vuosikerta32
    Numero5
    DOI - pysyväislinkit
    TilaJulkaistu - 2011
    OKM-julkaisutyyppiA1 Julkaistu artikkeli, soviteltu

    Keywords

    • Colloidal pitch
    • fatty acids
    • galactoglucomannans (GGM)
    • hemicelluloses
    • phase distribution
    • resin acids
    • RFA
    • triglycerides

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