摘要
对某砂岩型铀矿床的矿石进行了不同酸度和Fe^(3+)浓度的微生物浸出试验,以及与酸法浸出(H_2SO_4浓度5 g/L)的对比试验。结果表明,微生物浸铀在4 g/L酸度、2 g/L Fe^(3+)条件下铀浸出率最高(96.43%),比酸法浸出率高27%;微生物溶浸时Fe^(3+)浓度超过2 g/L对浸铀没有明显的提升作用。
One sand-type uranium deposit was bioleached with different acidities and Fe^3+ concentrations. The result was compared with that of acid leaching of 5 g/L H2SO4. The results show that the optimum bioleaching rate of uranium of 96.43% is obtained under the conditions of 4 g/L H2SO4 and 2 g/L Fe^3+ , which is 27% higher than that of acid leaching with 5 g/L H2SO4. Fe^3+ concentration over 2 g/L is not effective to promote uranium bioleaching.
出处
《有色金属(冶炼部分)》
CAS
北大核心
2014年第10期54-56,68,共4页
Nonferrous Metals(Extractive Metallurgy)
基金
国家重点基础研究发展计划(973计划)项目(2012CB723101)
关键词
微生物浸铀
酸法浸铀
砂岩铀矿
bioleaching of uranium
acid leaching of uranium
sand-type uranium ore