FAST COAGULATION OF NEARLY SPHERICAL FERRIC-OXIDE (HEMATITE) PARTICLES .2. THEORETICAL CONTRIBUTION TO THE FAST COAGULATION OF PARTICLES WITH DIFFERENT SURFACE CURVATURE

Authors
SHILOV V LICHTENFELD H SONNTAG H
Citation
V. Shilov et al., FAST COAGULATION OF NEARLY SPHERICAL FERRIC-OXIDE (HEMATITE) PARTICLES .2. THEORETICAL CONTRIBUTION TO THE FAST COAGULATION OF PARTICLES WITH DIFFERENT SURFACE CURVATURE, Colloids and surfaces. A, Physicochemical and engineering aspects, 104(2-3), 1995, pp. 321-325
Citations number
6
Categorie Soggetti
Chemistry Physical
Journal title
Colloids and surfaces. A, Physicochemical and engineering aspects → ACNP
ISSN journal
09277757
Volume
104
Issue
2-3
Year of publication
1995
Pages
321 - 325
Database
ISI
SICI code
0927-7757(1995)104:2-3<321:FCONSF>2.0.ZU;2-9
Abstract
In order to give a theoretical interpretation of the results of the ra pid coagulation measured in the case of a haematite suspension, we con sidered the influence of close hydrodynamic and van der Waals interact ions on the basis of a model in which the surfaces of interacting part icles have areas with variable curvature radii. The formula given by D erjaguin and Muller, Dokl. Acad. Nauk SSSR, 176 (1967) 738, Spielman, J. Colloid Interface Sci., 33 (1970) 562, Honig, Roeberson and Wiersem a, J Colloid Interface Sci., 36 (1973) 97, who derived the formula for interactions between ideal spherical particles, while in the case of particles with a highly variable radius of curvature it mergers with t hat of Smoluchowski.