| With the continuous exploitation and consumption of high-quality gold ores, the proportion of refractory gold ores is increasing. Recovering gold from refractory gold ores is the inevitable trend of the future development of gold industry. The causes of difficult leaching of refractory gold ores are briefly analyzed in this review，and the research progress of five pretreatment technologies including roasting oxidation, hot pressing oxidation, biological oxidation, mechanical activation and microwave, as well as five gold recovery technologies including cyanidation, thiourea, thiosulfate, halogen and pyrometallurgical are also introduced. The advantages and disadvantages of five pretreatment technologies and four wet-process gold recovery technologies are compared. Finally, future developments in the pretreatment methods and the recovery technology of refractory gold ores are prospected. |
