A Comparison Of Liberation Determinations By Particle Area Percentage And Exposed Particle Perimeter Percentage In A Flotation Concentrator
Read full paper at: http://www.scirp.org/journal/PaperInformation.aspx?PaperID=20206#.VNCBOizQrzE Author(s) R. Lastra Affiliation(s) Natural Resources Canada, Mining and Mineral Sciences Laboratories,555 Booth St., Ottawa, ON, K1A 0G1, Canada. . ABSTRACT To simplify programming, image analyzers commonly measure either linear intercepts or the areas of particles and grains to determine liberation based on polished section mounts. However, the concentration of minerals by flotation is based on reagents that interact with the exposed surfaces of the minerals. Thus, it is often perceived that image analyzers should measure the perimeter of the mineral of interest in the ore particles. A comparative liberation study of thirteen samples collected from a flotation plant processing a complex base metal sulfide ore showed that the liberation of the ore minerals determined by area measurements is very similar to the liberation det...