南方某尾矿库浅层尾砂中铀分布特征  

Study on the uranium distribution characteristics in superficial zone tailings of a southern uranium tailings pond

作　　者：占凌之 朱晓杰 高柏[1] 杜洋[1] 汪勇[1] 

机构地区：[1]东华理工大学,江西抚州344000 [2]赤峰九桦化工有限责任公司,内蒙古赤峰024000

出　　处：《有色金属（矿山部分）》2014年第3期45-47,63,共4页NONFERROUS METALS(Mining Section）

基　　金：国家自然科学基金(41162007;41362011);江西省教育厅科技项目(GJJ12375);东华理工大学放射性地质勘探与技术国防重点学科实验室开放基金(2011RGE705)

摘　　要：选取南方某铀尾矿库的浅层尾矿砂为研究对象,研究铀在浅层尾矿砂的分布特征并对其进行分析。通过对尾矿砂样进行酸浸试验,发现在酸浸过程中浸出量随时间延长而增加,不同深度尾矿砂中的铀浸出量差异明显,但各层的浸出量并不与深度呈线性关系,深度80cm处的铀浸出量最高,可达25.63mg/g,明显高于其他各层。尾矿砂中铀的这种分布特征可能是由于在氧化、降雨淋滤作用下,铀发生了溶解迁移和沉淀作用。The superficial zone tailings of one southern uranium mine tailing was selected to study and analyze the distribution characteristics of uranium in it. The results of the acid leaching experiments indicated that uranium content gradually increased with the time increasing, and the uranium content has clear difference in different depth. Furthermore, uranium content does not demonstrate a linear relationship with its depth and uranium content is up to 25.63 mg/g in the 80cm depth, which is far higher than other depth. This distribution characteristic with uranium content in superficial zone tailings of the uranium mine tailing may be due to the effect of oxidation, rainfall, dissolution and precipitation of hydrogeochemical action process.

关 键 词：铀 尾矿库 浅层尾砂 分布特征 

分 类 号：TD167[矿业工程—矿山地质测量]