Characterization of shape, roughness and wettability of calcite mineral [Kalsit mineralinin şekil, pürüzlülük ve islanabilirli?inin karakterizasyonu]

Abstract

In this study, shape characteristics of calcite 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 (R BET) values. The second measurement was stated as the parameters of R a values on the pelleted surfaces of the particles by using Surtronic 3 + instrument. The wettability characteristics (? c) of ground calcite 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 calcite mineral.