Interactions between fillers and dissolved and colloidal substances from TMP

A1 Originalartikel i en vetenskaplig tidskrift (referentgranskad)


Interna författare/redaktörer


Publikationens författare: Stefan Willför, Anna Sundberg, Anna-Liisa Sihvonen, Bjarne Holmbom
Förläggare: FINNISH PAPER TIMBER
Publiceringsår: 2000
Tidskrift: Paperi ja puu
Tidskriftsakronym: PAP PUU-PAP TIM
Volym: 82
Nummer: 6
Artikelns första sida, sidnummer: 398
Artikelns sista sida, sidnummer: 402
Antal sidor: 5
ISSN: 0031-1243


Abstrakt

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.


Nyckelord

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

Senast uppdaterad 2019-14-12 vid 01:19