Abstract
A fundamental experimental study of the alternation and modification of particle characteristics has been carried out by the use of a small scale vessel with a stirrer for a suspension of polystyrene latex (PSL) particles (2μm in diameter) as the carrier and magnetite particles (0.23μm in diameter) as a coating material. The qualitative maps of the progressive coating on the carrier surface by fines have been depicted along the variation of operational conditions, such as concentrations and the concentration ratio of each component in the suspension, pH, stirring speed, and agitation period among others. The number distribution of fines coated on a carrier has been correlated through sedimentation velocity data and by the equations which give the relationship between the terminal settling velocity and the composition of the component particles in each coated particle. The results show that the number of fines coated on a carrier is about 114 and has a rather narrow distribution.
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