Abstract
This paper presents the results of a comparative study of three coal flotation systems, one currently being used, the others being suggested in this work for the treatment of superfine coal matrix. The matrix is a very fine rich tailings coal, i.e. 54.8 percent ash with 60% of the sample passing through a 46 microns screen. The suggested systems are simply pre-emulsification of the collectors in the cell of froth flotation, prior to the feed being introduced into the flotation unit.