Although MRC’s initial focus is in the coal industry, the technology has applications throughout the minerals industry such as copper, lead, zinc, and silver mining operations, whenever flotation is used to recover the concentrate. Advanced dewatering laboratory tests on chalcopyrite ore have shown increased recovery using the HHS Process to reprocess the cleaner-stage tailings now being sent to the thickener. Due to the high value of these minerals, even a small recovery from ultrafine material could result in a high value of additional minerals and revenue.
The “attaching” surface forces developed by HHS greatly exceed those of flotation , resulting in the recovery of mineral particles as small as sub-micron in size. The following graph shows the added performance with a copper ore when HHS is used instead of flotation. Thus, a natural fit for HHS at existing ore treatment plants is in the re-treatment of the cleaner flotation tails. A mobile HHS unit will be available for field testing at concentrating plants in mid-2009 at existing plants.