Gold Ores
Gold Ores 7.4.1 Gold-Bearing Ores The recovery of gold from gold-bearing ores depends largely on the nature of the deposit,the mineralogy of the ore and the distribution of gold in the ore.The methods used for the recovery of gold consist of the following unit operations: (1)The gravity preconcentration method,which is used mainly for recovery of gold from placer deposits that contain coarse native gold.Gravity is often used in combination with flotation and/or cyanidation. (2)Hydrometallurgical methods are normally employed for recovery of gold from oxidized deposits(heap…