Interactions between fillers and dissolved and colloidal substances from TMP

Stefan Willför, Anna Sundberg, Anna-Liisa Sihvonen, Bjarne Holmbom

    Research output: Contribution to journalArticleScientificpeer-review

    28 Citations (Scopus)

    Abstract

    Interactions between filler materials and dissolved and colloidal (DisCo) substances released from unbleached and peroxide-bleached spruce TMP were investigated at both pH 5 and pH 8. Talc adsorbed substantial amounts of neutral carbohydrates, mainly glucomannans, from unbleached TMP water, while kaolin adsorbed much of the glucomannans from peroxide-bleached TMP water. Kaolin also adsorbed pectins. Calcium carbonate removed much of the lipophilic extractives from unbleached TMP water at pH 8. Kaolin and talc removed substantial amounts of lipophilic extractives from both unbleached and bleached TMP waters. The decrease was substantial from bleached TMP water at pH 5. An amount of 10 g filler/L was needed to get a substantial removal of DisCo substances.
    Original languageUndefined/Unknown
    Pages (from-to)398–402
    Number of pages5
    JournalPaperi ja puu
    Volume82
    Issue number6
    Publication statusPublished - 2000
    MoE publication typeA1 Journal article-refereed

    Keywords

    • dissolved and colloidal substances
    • glucomannans
    • lipophilic extractives
    • pectins
    • TMP fillers

    Cite this