Conference paper

Kinetics of Deposition of Colloidal Metal Oxide Particles on a Steel Surface

Egon Matijević ; Department of Chemistry and Institute of Colloid and Surface Science, Clarkson College, Potsdam, New York 13676, USA
Nikola Kallay ; Department of Chemistry and Institute of Colloid and Surface Science, Clarkson College, Potsdam, New York 13676, USA

Abstract

The deposition of spherical a-Fe20 3 and rod-like B-FeOOH.
particles on steel from aqueous dispersions of different pH and
ionic strength using a packed column technique has been studied.
A procedure was developed by which the coagulation of the suspended
particles was minimized even in the presence of high electrolyte
concentrations during the duration of an experiment. In the
absence of the potential barrier the results agree with the theoretical
expectations based on the convective diffusion model. The
same interpretation applies to the effects of the pH and of the
indifferent electrolyte if the influence of electrostatic forces is
taken into consideration.
A batch technique was used to investigate the equilibration
phenomena in the same system at room temperature and at 210 °c.

Keywords

Hrčak ID:

194188

URI

https://hrcak.srce.hr/194188

Publication date:

9.11.1983.

Visits: 577 *