低品位铀矿资源强化浸出提铀技术研究进展  

Research Progress on Enhanced Leaching Technology of Low—grade Uranium Resources

作　　者：芮子 童雄[1,2] 谢贤 谢瑞琦[1,2] RUI Zi;TONG Xiong;XIE Xian;XIE Ruiqi(Faculty of Land Resource Engineering,Kunming University of Science and Technology,Kunming 650093,Yunnan,China;National Local Joint Engineering Research Center for Green Comprehensive Utilization of Metal Mine Tailings Resources,Kunming 650093,Yunnan,China)

机构地区：[1]昆明理工大学国土资源工程学院,云南昆明650093 [2]金属矿尾矿资源绿色综合利用国家地方联合工程研究中心,云南昆明650093

出　　处：《矿产保护与利用》2023年第5期163-169,共7页Conservation and Utilization of Mineral Resources

基　　金：国家自然科学基金项目(51764024)。

摘　　要：铀矿开发过程中产生的低品位铀矿资源被抛弃,造成了严重的环境污染和资源浪费。采用常规浸出技术无法有效提取低品位铀矿、铀尾矿、铀浸渣、含铀废渣等低品位铀矿资源中的铀,为此,强化浸出提铀技术受到了关注。介绍了氧化浸出、焙烧—浸出、微波辅助浸出、超声辅助浸出、微生物浸出、酸碱联合浸出加压浸出、电场辅助浸出等8种强化浸出技术及其机理的研究现状,归纳和总结了目前低品位铀矿资源绿色高效浸出技术的研究方向,为提高铀的浸出率、解决常规技术无法有效提取低品位铀矿资源中铀的难题提供借鉴。Low-grade uranium resources are abandoned in the process of uranium mine development,resulting in serious environmental pollution and resource waste.The conventional leaching technology cannot effectively extract uranium from low-grade uranium resources such as low-grade uranium primary ore,uranium tailings,uranium leaching slag,and uranium-containing waste slag.Therefore,the enhanced leaching technology of low-grade uranium resources extraction attracts more attention.The research progress of eight leaching technologies and leaching mechanisms including oxidation leaching,roasting leaching,microwave-assisted leaching,ultrasonic-assisted leaching,microbial leaching,and pressure leaching are introduced.The green and efficient research direction of low-grade uranium resources leaching technology is summarized,which provides a reference for improving the uranium leaching rate and solving the problem that conventional technology cannot effectively extract uranium from low-grade uranium resources.

关 键 词：低品位铀矿 铀尾矿 铀浸渣 氧化浸出 焙烧浸出 

分 类 号：TD983[矿业工程—选矿] TF111.31[冶金工程—冶金物理化学] TD926.4