Separation of Radioactive Elements from Rare Earth Element-Bearing Minerals

被引：48

作者：

Garcia, Adrian Carrillo ^{[1
]}

Latifi, Mohammad ^{[1
,2
]}

Amini, Ahmadreza ^{[1
]}

Chaouki, Jamal ^{[1
]}

机构：

[1] Ecole Polytech Montreal, Chem Engn Dept, Proc Dev Adv Res Lab PEARL, CP 6079, Montreal, PQ H3C 3A7, Canada

[2] NeoCtech Corp, Montreal, PQ H3G 2N7, Canada

来源：

METALS | 2020年 / 10卷 / 11期

基金：

加拿大自然科学与工程研究理事会;

关键词：

rare earth elements; thorium; uranium; separation methods; precipitation; solvent extraction; leaching; membrane; RESIDUE RED MUD; SCALE-UP; GRAPHENE OXIDE; ACID-SOLUTIONS; URANIUM EXTRACTION; SELECTIVE THORIUM; PHOSPHORIC-ACID; EFFICIENT ENRICHMENT; SYNERGISTIC MIXTURE; SORPTION BEHAVIOR;

D O I：

10.3390/met10111524

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Rare earth elements (REE), originally found in various low-grade deposits in the form of different minerals, are associated with gangues that have similar physicochemical properties. However, the production of REE is attractive due to their numerous applications in advanced materials and new technologies. The presence of the radioactive elements, thorium and uranium, in the REE deposits, is a production challenge. Their separation is crucial to gaining a product with minimum radioactivity in the downstream processes, and to mitigate the environmental and safety issues. In the present study, different techniques for separation of the radioactive elements from REE are reviewed, including leaching, precipitation, solvent extraction, and ion chromatography. In addition, the waste management of the separated radioactive elements is discussed with a particular conclusion that such a waste stream can be employed as a valuable co-product.

引用

页码：1 / 22

页数：22

共 138 条

[1] An innovative method for processing Egyptian monazite [J].