Flour gold can be defined as ultra-fine gold found in a low micron size fraction, often smaller than 74 microns or 200 mesh. Reality is that with today’s fine gold recovery equipment, this is a low ways away from the elusive microscopic gold small prospectors want to know how to recover. Falcon’s iCon gravity concentrator, in conjunction with a conventional shaking table, can recover in excess of 85% of GRG gold. A screen analysis of the gold particles has show test samples with as much as 44% of the gold in the -74 microns (-200 mesh) size range. High metallurgical efficiencies of concentration within the size ranges of 1.5 mm (-10 mesh) to about 37 microns (-400 mesh) allows recoveries of trace quantities of contained high specific-gravity minerals from what would otherwise be “plant tailings”.
The iCon i150 and i350 are, for a small miner, high capacity gravity concentrator designed for feed throughputs of 1 to 15 TPH, for feed material finer than 2 mm (-10 mesh) in size. The high-G cones operate at feed pulp densities of 60% to 65% solids (by weight) and ….Read more