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Displacement Washing of Pulp with Solutions of Cationic Polyacrylamides in Water
Autoři: Potůček František | Marhanová Milena
Rok: 2002
Druh publikace: článek v odborném periodiku
Název zdroje: Cellulose Chemistry and Technology
Název nakladatele: Editura Academiei Romane
Místo vydání: Bukurešť
Strana od-do: 527-542
Tituly:
Jazyk Název Abstrakt Klíčová slova
cze Displacement Washing of Pulp with Solutions of Cationic Polyacrylamides in Water Using distilled water and/or aqueous cationic polyacrylamide solutions, the mechanism of the displacement washing of unbleached kraft pulp was investigated. The step change technique has been employed in the investigation of displacement of black liquor. To characterize such a phenomenon, the washing curves, as well as wash yield at the wash liquor ratio equal to unity were determined. The results obtained for pure wash water were compared with those for polyacrylamide solutions. Laboratory results have indicated that improved displacement washing can be achieved by the addition of high molecular weight cationic polyacrylamides to the wash water. Displacement Washing; Dispersion Model; Kraft Pulp; Cationic Polyacrylamide
eng Displacement Washing of Pulp with Solutions of Cationic Polyacrylamides in Water Using distilled water and/or aqueous cationic polyacrylamide solutions, the mechanism of the displacement washing of unbleached kraft pulp was investigated. The step change technique has been employed in the investigation of displacement of black liquor. To characterize such a phenomenon, the washing curves, as well as wash yield at the wash liquor ratio equal to unity were determined. The results obtained for pure wash water were compared with those for polyacrylamide solutions. Laboratory results have indicated that improved displacement washing can be achieved by the addition of high molecular weight cationic polyacrylamides to the wash water. Displacement Washing;Dispersion Model;Kraft Pulp;Cationic Polyacrylamide

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