摘要
在有氧化剂存在的条件下,采用硫脲酸性浸出难浸金矿中的金,并考察了各种影响金浸出率的因素。结果表明,最佳浸金条件是:硫酸初始浓度1.3mol/L、硫脲浓度14g/L、硫酸铁浓度24g/L、液固比10∶1、浸出时间10h,金浸出率可达80%左右。
Gold was acidic leached from refractory gold ore with thiourea and oxidant.The factors affecting gold leaching rate were investigated.The results show that the gold leaching rate is about 80% under the optimum conditions including initial sulfuric acid concentration of 1.3 mol/L,thiourea concentration of 100 g/L,ferric sulfate concentration of 100 g/L,ratio of liquid to solid of 10 ∶ 1,and reaction time of 10 h.
出处
《有色金属（冶炼部分）》
CAS
北大核心
2014年第3期37-39,共3页
Nonferrous Metals（Extractive Metallurgy)
基金
贵州省科学技术基金项目(黔科合J字[2010]2003)
贵州大学研究生创新基金项目(研理工2013063)
关键词
硫脲
难浸金矿
浸出率
thiourea
refractory gold ore
leaching rate
