Publication detail

Displacement Washing of Pulp With Solutions of Polymers

Authors: Potůček František | Marhanová Milena

Year: 2003

Type of publication: ostatní - přednáška nebo poster

Name of source: Proc. Int. Conf. Chemical Technology of Wood, Pulp and Paper

Publisher name: Slovenská technická univezita v Bratislave

Place:

Page from-to:

Titles:

Language	Name	Abstract	Keywords
cze			Displacement washing; Dispersion model; Kraft pulp; Polyacrylamide
eng	Displacement Washing of Pulp With Solutions of Polymers	Using aqueous solutions of cationic, anionic, and non-ionic polyacrylamides, 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. The axial dispersion flow model containing one dimensionless parameter, the Peclet number, was used for describing the washing process. To characterize the displacement of alkali lignin, the washing curves as well as wash yield at the wash liquor ratio equal to unity were determined. The results obtained for polyacrylamide solutions were compared with those for pure wash water.	Displacement washing; Dispersion model; Kraft pulp; Polyacrylamide

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