| 降低离子型稀土原地浸矿残留稀土的对策探讨 |
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| 引用本文： | 吴昊,邱廷省,严华山.降低离子型稀土原地浸矿残留稀土的对策探讨[J].有色金属科学与工程,2021,12(2):105-112. |
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| 作者姓名： | 吴昊 邱廷省 严华山 |
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| 作者单位： | a.江西理工大学，江西省离子型稀土资源绿色开发与高值利用重点实验，江西 赣州 341000 |
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| 基金项目： | 国家自然科学基金资助项目(51674125,52004107);江西省教育厅科研项目(GJJ190486,GJJ190488);江西理工大学博士科研启动项目(jxxjbs19020);江西理工大学优秀博士学位论文培育项目(202202400013)。 |
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| 摘 要： | 离子吸附型稀土矿是国家战略资源，加强稀土废弃矿资源综合利用、充分回收残留稀土资源是今后稀土研究领域重要研究方向之一。文章在总结离子吸附型稀土矿提取工艺发展演变的基础上，重点分析了离子吸附型稀土废弃矿中残留稀土原因及其赋存状态。研究结果表明，离子吸附型稀土废弃矿中残留稀土的主要因素有浸矿过程的浸矿盲区、毛细现象、风化不完全和反吸附现象等。针对稀土残留的原因，结合实验研究，就减少稀土残留及进一步浸出回收离子吸附型稀土提出了对策，分析结果可为离子吸附型稀土矿的绿色高效提取及减少稀土资源残留提供参考依据。
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| 关 键 词： | 离子吸附型稀土废弃矿 残留稀土 二次溶浸 |
| 收稿时间： | 2020-11-05 |
Countermeasures of reducing residual resources by in-situ leaching of ionic rare earths |
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| WU Hao,QIU Tingsheng,YAN Huashan.Countermeasures of reducing residual resources by in-situ leaching of ionic rare earths[J].Nonferrous Metals Science and Engineering,2021,12(2):105-112. |
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| Authors: | WU Hao QIU Tingsheng YAN Huashan |
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| Affiliation: | a.Jiangxi University of Science and Technology, a. Key Institute of Green Development and High Value Utilization of Ionic Rare Earth Resources, Ganzhou, 341000, Jiangxi, Chinab.Jiangxi University of Science and Technology, Key Laboratory of Ionic-type Rare Earth Resources Decelopment and Application, Ministry of Education, Ganzhou, 341000, Jiangxi, Chinac.Jiangxi University of Science and Technology, School of Resource and Environmental Engineering, Ganzhou, 341000, Jiangxi, China |
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| Abstract: | The weathering crust ion-adsorbed rare earth ore is a national strategic resource,strengthening the comprehensive utilization of waste rare earth resources and fully recovering the residual rare earth elements are one of the important research directions in the future of rare earth research.On the basis of summarizing the development and evolution of the extraction technology of ion-adsorbed rare earth minerals,this paper mainly analyzes the causes of rare earth residues in the abandoned ion type rare earth minerals and their occurrence status.The results show that the main factors of rare earth residue in ionic rare earth waste ore include leaching blindness,capillarity,incomplete weathering and reverse adsorption.To this end,in view of the causes of rare earth residue,combined with experimental research,countermeasures are proposed for reducing rare earth residue and further leaching to recover ionized rare earth.The summary analysis results can provide a reference for green and efficient extraction of ionic rare earth ore and reducing residual rare earth resources. |
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| Keywords: | weathering crust ion-adsorbed rare earth ore residual rare earth secondary leaching |
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