Combined Physicochemical and Energy Methods to Improve the Recovery of Rare Earth Elements from Eudialyte Concentrate

被引：1

作者：

Chanturiya, Valentine A. ^{[1
]}

Minenko, Vladimir G. ^{[1
]}

Samusev, Andrey L. ^{[1
]}

Ryazantseva, Maria V. ^{[1
]}

Koporulina, Elizaveta V. ^{[1
]}

机构：

[1] Russian Acad Sci, NV Melnikovs Inst Comprehens Exploitat Mineral Res, Kryukovsky Tupik 4, Moscow 111020, Russia

来源：

MINERALS | 2023年 / 13卷 / 03期

关键词：

eudialyte; acid leaching; energy impacts; zirconium; rare earth elements; EXTRACTION; EFFICIENCY; ZIRCONIUM; METALS; IRON;

D O I：

10.3390/min13030414

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 ; 070902 ;

摘要：

The parameters for efficient nitric acid leaching were experimentally determined, which ensured the recoveries of Zr and REEs from eudialyte concentrate up to 87.0%-91.7% and 76.0%-81.1%, respectively. The possibility was shown of intensifying the leaching process through preliminary energy treatments to ensure the intensive breakdown of mineral complexes and grains; as a result, the recovery of Zr and REEs increased by more than 10%. A process was developed for the selective recovery of up to 91.5% of zirconium and up to 71.2% of REEs in the form of carbonate compounds from the pregnant solution of nitric acid leaching by chemical precipitation as well as up to 81.1% REEs and up to 91.7% zirconium on hypercrosslinked polystyrene sorbents.

引用

页数：21

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