Skip to main content

Login for students

Login for employees

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