难浸金矿石的次氯酸钠浸出试验研究  

Experimental Study on Leaching of Gold From A Refractory Gold Ore Using Sodium Hypochlorite

作　　者：刘宪超 蒋中刚 唐道文[1] 储春利[1] 周姣[1] 燕璞 

机构地区：[1]贵州大学材料与冶金学院,贵州贵阳550003 [2]贵州紫金矿业股份有限公司,贵州贵阳550025

出　　处：《湿法冶金》2014年第6期413-415,共3页Hydrometallurgy of China

基　　金：贵州省科学技术基金项目(黔科合J字[2010]2003)

摘　　要：研究了难浸金矿的次氯酸钠浸出。采用单因素试验法,考察了NaClO初始浓度、NaOH初始浓度、浸出温度、浸出时间等因素对金浸出率的影响,确定了最佳浸出条件。试验结果表明,在次氯酸钠初始浓度为0.35mol/L、氢氧化钠初始浓度为1.4mol/L、浸出温度为30℃、浸出时间为4h最佳条件下,金浸出率可达80%。In this paper ,leaching of gold using sodium hypochlorite from a refractory gold ore was studied .Effects of NaClO initial concentration ,NaO H initial concentration ,leaching temperature and leaching time on leaching rate of gold were examined ,the optimum leaching conditions were determined .The results show that at the optimum conditions of sodium hypochlorite initial concentration of 0 .4 mol/L ,sodium hydroxide initial concentration of 1 .4 mol/L ,leaching temperature of 30 ℃ and leaching time of 4 h ,the leaching rate of gold can reach 80% .

关 键 词：难浸金矿石 次氯酸钠 金 浸出 

分 类 号：TF803.21[冶金工程—有色金属冶金] TF831