Gold ore. Prominer maintains a team of senior gold processing engineers with expertise and global experience. These gold professionals are specifically in gold processing through various beneficiation technologies, for gold ore of different characteristics, such as flotation, cyanide leaching, gravity separation, etc., to achieve the processing plant of optimal and cost efficient process designs.
The process has four primary steps: SX recovery of coppercyanide complexes from leach solutions using LIX 7950, stripping of copper from the loaded organic using a high pH, coppercyanide rich spent electrolyte, membrane cell electrolysis of the strip solution to produce metallic copper and free cyanide for subsequent recovery, and cyanide recovery from a bleed stream from electrolysis.
The cyanide is regenerated as free cyanide and recycled to the gold extraction circuit. We have designed and constructed full scale plants, provided process review and commissioning for a plant under construction, and carried out flowsheet development and testing programs for SART.