Akademik Veri Yönetim Sistemi
MADENCILIK MADEN MUHENDISLERI ODASI DERGISI, cilt.43, sa.4, ss.11-24, 2004 (Hakemli Dergi)
In this study, shape characteristics of caicite particles ground by ball, rod and autogenous mills were investigated using SEM and expressed by the shape descriptors such as elongation and roundness by measuring major and minor axes of the silhouette of the particle in two dimensions. Surface roughness values were determined by two measurement techniques. The first measurement, which was based on BET surface area of particles, was stated in terms of the calculated surface roughness (RBET) values. The second measurement was stated as the parameters of Ra values on the pelleted surfaces of the particles by using Surtronic 3+ instrument. The wettability characteristics (yc) of ground caicite products were determined by microflotation and contact angle measurement techniques using the EMDEE MicroFLOT Agitator and Rame-Hart goniometer, respectively. Finally, some correlations were established between the shape properties, surface roughness values and the wettability characteristics of the calcite samples. The results revealed that elongation and smoothness decreased the wettability, while roundness and roughness caused an increase in wettability for caicite mineral.