(1. 江西理工大學(xué) 資源與環(huán)境工程學(xué)院，贛州 341000；
2. 北京科技大學(xué) 冶金與生態(tài)工程學(xué)院，北京 100083；
3. 廣東高要市 河臺(tái)金礦，高要 526100)
摘 要: 以某實(shí)際含銅金礦為研究對(duì)象，在氯鹽酸性加溫體系下，分析浸出溫度、時(shí)間、礦物粒度、NaCl濃度、H2SO4濃度、氧氣流量等因素對(duì)化學(xué)預(yù)氧化浸出除銅和浸出渣氰化浸金的影響過(guò)程。結(jié)果表明：在90%礦樣粒度小于37 μm、浸出溫度95 ℃、初始H2SO4濃度0.75 mol/L、起始NaCl濃度0.7 mol/L、液固比5׃1、浸出時(shí)間24 h、攪拌速度750 r/min的條件下，可使銅的浸出去除率達(dá)到80%以上，預(yù)氧化渣金的氰化浸出率達(dá)98.23%。
關(guān)鍵字: 含銅金礦；預(yù)處理；化學(xué)氧化；浸出工藝
refractory gold ores
（1. Faculty of Resource and Environment, Jiangxi University of Science and Technology, Ganzhou 341000, China;
2. School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing,
Beijing 100083, China;
3. Gold Mining of Hetai, Gaoyao Town in Guangdong Province, Gaoyao 526100, China）
Abstract:A certain refractory copper-bearing gold ores were studied. Under the acid and warming system of chlorine, the influence of some factors on process of chemical pre-oxidation leaching copper and cyanidation leaching gold from residue were researched, such as leaching temperature and time, mineral granularity, NaCl concentration, H2SO4 concentration and flow rate of oxygen. The results show that copper removing ratio is more than 80% and gold leaching ratio is more than 98.23%, under the condition of 90% of mineral granularity 37 μm, leaching temperature 95 ℃, initial NaCl concentration 0.7 mol/L, initial H2SO4 concentration 0.70 mol/L, leaching time 24 h, ratio of liquid to solid 5׃1 and stirring rate 750 r/min.
Key words: copper-bearing gold ores; pretreatment; chemical oxidation; leaching
