浸出(土壤学)
浸出剂
结壳
稀土
洗脱
堆浸法
地质学
环境科学
化学
冶金
地球化学
材料科学
土壤水分
土壤科学
尾矿
色谱法
硫酸
作者
Xu Zhang,Gang� Li,Haofan Yang,Aoyang Sha,Zhengyan He,Yuchen Tang,Ming Wu,Jun Qu
出处
期刊:Minerals
[MDPI AG]
日期:2023-09-17
卷期号:13 (9): 1223-1223
摘要
Weathered crust elution-deposited rare earth ores are key strategic resources and the main source of medium and heavy rare earths. This paper summarizes the development of leaching technology of rare earth ores, compares the advantages and disadvantages of the three generations of leaching technology, and introduces the improved heap leaching technology and the new technology of the leaching–extraction integration and enhanced leaching, focusing on the leaching of weathered crust elution-deposited rare earth ores. In this paper, the development of the leaching agents is expounded, and the research status and the development trend of the composite ammonium salt leaching agent, impurity inhibition leaching agent, swelling inhibition leaching agent, and seepage-promotion leaching agent are also introduced. And this paper summarizes the leaching mechanism and the development direction of leaching agents. Moreover, the future key research direction of weathered crust elution-deposited rare earth ores is proposed, which is green, efficient, safe development and utilization.
科研通智能强力驱动
Strongly Powered by AbleSci AI