典型文献
Progress in green and efficient enrichment of rare earth from leaching liquor of ion adsorption type rare earth ores
文献摘要：
Ion adsorption type rare earth ores (IATREOs) are a valuable strategic mineral resource in China,which feature a complete composition of fifteen rare earth elements and are rich in medium and heavy rare earth (RE) elements.In the leaching process for recovering rare earth elements from IATREOs,many impurities will be leached together with rare earth elements and enter the leaching liquor.An impurity removal-precipitation enrichment technique is currently applied to selectively recovery rare earth ele-ments from the leaching liquor with the high content of impurities and low concentration of rare earth elements by using ammonium bicarbonate in the industry.However,a high loss of rare earth elements and severe ammonia nitrogen pollution are caused by this process.Therefore,more beneficial impurities removal technologies,mainly for aluminum,and green enrichment technologies with lower pollution are now urgently needed.For this purpose,this paper analyzed two aspects of research progress in recent decades:the green separation of rare earth elements and aluminum from leaching liquor and the green and efficient enrichment of rare earth elements.Finally,an approach for the high-efficiency and green enrichment of rare earth elements from leaching liquor of the IATREOs is proposed in several aspects,including impurity inhibition leaching,neutralization and impurity removal,alkaline calcium and magnesium salt precipitation enrichment,and centrifugal extraction enrichment.
文献关键词：
中图分类号：
作者姓名：
Qiang He;Jiang Qiu;Jinfa Chen;Miaomiao Zan;Yanfei Xiao
作者机构：
Faculty of Materials Metallurgy and Chemistry,Jiangxi University of Science and Technology,Ganzhou 341000,China;Ganzhou Engineering Technology Research Center of Green Metallurgy and Process Intensification,Ganzhou 341000,China
文献出处：
引用格式：
[1]Qiang He;Jiang Qiu;Jinfa Chen;Miaomiao Zan;Yanfei Xiao-.Progress in green and efficient enrichment of rare earth from leaching liquor of ion adsorption type rare earth ores)[J].稀土学报（英文版）,2022(03):353-364
A类：
IATREOs
B类：
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AB值：
0.441952
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