摘要
对我国南方某硬岩难浸铀矿石分别开展了不同酸耗、矿浆液固比、不同初始铁浓度摇瓶搅拌浸出试验,考察铀浸出率(浓度)与酸浓度、菌液三价铁浓度、液固比和Eh之间的关系。最佳工艺参数为:酸化酸度30-60g/L、酸耗8%~15%、液固比(2.5~5.0):1、三价铁浓度5~7g/L。
Shaking flask tests of bioleaching under different acid consumption, L/S and initial iron concentration were carried out for low grade hard rock type uranium ore. The relationship between uranium leaching rate and acid concentration, ferric iron concentration of bacteria liquid, L/S, and Eh was investigated. The optimum technical parameters include acidification acidity of 30 - 60 g/L, acid consumption of 8%-15%, L/S of (2.5-5.0) : 1, and ferric iron concentration of 5-7 g/L.
作者
李兴华
陈功新
孙占学
刘金辉
史维浚
LI Xing-hua CHEN Gong-xin SUN Zhan-xue LIU Jin-hui SHI Wei-jun(Key Discipline Defense Laboratory of Radioactive Geology and Exploration Technology, East China Institute of Technology, Nanchang 330013, China)
出处
《有色金属(冶炼部分)》
CAS
北大核心
2016年第10期29-32,共4页
Nonferrous Metals(Extractive Metallurgy)
基金
国家高技术研究发展计划(863计划)项目(2012AA061504)
江西省科技厅科技计划项目(20133BFB29004)
江西省省部共建核资源与环境国家重点实验室培育基地自主基金项目(Z1508)
关键词
低品位铀矿石
生物浸出
摇瓶
low grade uranium ore
bioleaching
shake flask test