Recovery of Gold with AgNO3 Pretreatment by Cyanidation at Heap .
burning of activated carbon to get the bullion, and 6) weighing bullion and Au content. There was . heap leaching, vat leaching, or agitated leaching [2, 3]; however, heap . carbon from coconut shell (Kyodo Yushi), HCl pa 37%. (Merck), and.Get Price