Major Mines & Projects | Siana Mine
Oct 15, 2018· Processing recoveries forgoldvary between 75 to 85% forgoldand nominally 40 to 45% for silver. Product produced is agold/silver dore as bullion. The plant comprises single stagecrushing, SAG milling, gravity concentration and high intensity cyanidation, leaching and adsorption (CIL), followed by carbon elution and electrowinning to ...