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Displacement Washing of Pulp with Solutions of Cationic Polyacrylamides in Water
Authors: Potůček František | Marhanová Milena
Year: 2002
Type of publication: článek v odborném periodiku
Name of source: Cellulose Chemistry and Technology
Publisher name: Editura Academiei Romane
Place: Bukurešť
Page from-to: 527-542
Titles:
Language Name Abstract Keywords
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