| 某低品位铀矿石的浸出性能研究 |
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| 引用本文： | 冯春林,张晓文,黄伟,范婷,唐泉,谭焱鹏. 某低品位铀矿石的浸出性能研究[J]. 铀矿冶, 2012, 31(1): 31-34 |
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| 作者姓名： | 冯春林 张晓文 黄伟 范婷 唐泉 谭焱鹏 |
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| 作者单位： | 1. 南华大学核资源与核燃料工程学院,湖南衡阳,421001
2. 南华大学环境保护与安全工程学院,湖南衡阳,421001 |
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| 基金项目： | 国家自然科学基金资助项目(51074093) |
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| 摘 要： | 采用搅拌浸出和柱浸2种方式对江西某矿低品位铀矿石进行浸出性能的试验验研究。搅拌浸出结果表明,该矿石属易浸出矿石,在硫酸质量浓度为10g/L、搅拌浸出12h时,铀的浸出率高于85%,且加氧化剂对浸出改善较小。柱浸试验结果表明,-5mm为堆浸工艺的最佳筑堆粒度,此时,铀的浸出率为85.7%,酸耗为4.6%(与矿石质量比),且矿堆透水性能良好,为33L/(m2.h)。试验获得的浸出参数,可作为堆浸工业性试验设计和生产中调整浸出参数的依据。
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| 关 键 词： | 低品位铀矿石 堆浸 搅拌浸出 参数 |
Leaching characteristics of a low grade uranium ore |
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| FENG Chun-lin , ZHANG Xiao-wen , HUANG Wei , FAN Ting , TANG Quan , TAN Yan-peng. Leaching characteristics of a low grade uranium ore[J]. Uranium Mining and Metallurgy, 2012, 31(1): 31-34 |
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| Authors: | FENG Chun-lin ZHANG Xiao-wen HUANG Wei FAN Ting TANG Quan TAN Yan-peng |
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| Affiliation: | 1.School of Nuclear Resources and Nuclear Fuel Engineering,University of South China,Hengyang 421001,China;2.School of Environment Protection and Safety Engineering,University of South China,Hengyang 421001,China) |
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| Abstract: | Leaching characteristics of a low grade uranium ore in Jiangxi province are studied using agitating leaching and column leaching methods.The results of agitating leaching test show that leaching rate of uranium is above 85% under the conditions of sulphuric acid concentration of 10 g/L and stirring 12 h,and the ore is leachable.The results of column leaching test show that leaching rate of uranium is above 85.7% under the conditions of particle size of-5 mm,sulphuric acid dosage of 4.6%(w/w),and leaching time 40 d,and the permeability of ore heap is good(33 L/m2 h).The obtained leaching parameters can be used as the basis of industrial experiment design and adjusting the leaching parameters in production. |
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| Keywords: | low grade uranium ore heap leaching agitating leaching parameter |
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