| The latest development of gold extraction with iodine-iodide solution is systematically reviewed. Firstly, the reaction mechanism is discussed from thermodynamics, dynamics, solution chemistry, and so on. Secondly, the effect of different technological parameters on gold leaching is illustrated. Thirdly, the test results on different gold ore, such as flotation gold concentrate, refractory gold-copper ore, carbon-bearing gold ore, gold-bearing waste, are given. Recycle technology of pregnant solution is also introduced. Finally, development tendency is prospected. |
