The sample taken for this test assayed originally 1.54 oz. gold and 0.28 oz. silver. The concentrate obtained by flotation assayed 4.92 oz. gold and 1.14 oz. silver. As this constituted 25% of the weight of ore taken, the gold recovered in the concentrate amounted to 79.9% of the total. An analysis of the concentrate showed:Read More
During the bioleachbiooxidation process, the copper is released into the solution and the solid is sent to a cyanidation process for gold recovery. Bacterial leaching of copper sulfide flotation concentrate is a complex process. Bioleaching of copper flotation concentrate has been investigated by RiveraSantillan et al. (1999). Compared withRead More
Even when recovery of gold and silver from such ores by flotation is low, it may be advantageous still to float off the minerals that interfere with cyanidation, roasting, and leaching or possibly to smelt the concentrate for extraction of its precious metals.Read More
Investigation on the cyanide leaching optimization for the treatment of KCGM gold flotation concentrate phase I Article in Minerals Engineering 18(8):832838 · July 2005 with 210 ReadsRead More
The use of ammonium thiosulphate as leaching agent for gold from a flotation concentrate has been studied. The gold content in the concentrate was 95 g/t, whereas the main mineralogical speciesRead More
Lower Grade CopperGold Concentrates. Gold is frequently associated with copper concentrates. In some cases, high recovery of gold by flotation is accompanied by high levels of pyrite flotation resulting in a lowgrade copper concentrate for treatment.Read More
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