Table of ContentsFlotation of Tin Ore SlimesDirect Tin Flotation The nominal size range for cassiterite flotation is between 2 and 100 microns. The top size is variable depending upon the liberation of the cassiterite particles. Cassiterite grains coarser than 100 microns are difficult to float whilst grains finer than 2 microns give selectivity problems. Hence … Continue reading Cassiterite Flotation – Tin Oxide