scholarly journals IDENTIFIKASI KEBERADAAN RARE EARTH ELEMENTS TIPE ION ADSORPTION PADA LEMPUNG: SAMPEL DARI MUNTOK DAN LUBUK BESAR, PULAU BANGKA

2021 ◽  
Vol 7 (2) ◽  
pp. 125
Author(s):  
Syafrizal Syafrizal ◽  
Arie Naftali Hawu Hede ◽  
Andy Yahya Al Hakim ◽  
Mutiara Indah Permatasari
Keyword(s):  
Rare Earth ◽  
Rare Earth Elements ◽  
Ion Adsorption

scholarly journals Geochemical signatures of rare earth elements and yttrium in the vicinity of an ion-adsorption type deposit: roles of source sediment control

2021 ◽  
Author(s):  
Haiyan Liu ◽  
Huaming Guo ◽  
Olivier Pourret ◽  
Maohan Liu ◽  
Zhen Wang ◽  
...  
Keyword(s):  
Rare Earth ◽  
Rare Earth Elements ◽  
Ion Adsorption ◽  
Sediment Control

scholarly journals A study of rare earth ion-adsorption clays: The speciation of rare earth elements on kaolinite at basic pH

2020 ◽  
pp. 105920
Author(s):  
Xu Feng ◽  
Oznur Onel ◽  
McAlister Council-Troche ◽  
Aaron Noble ◽  
Roe-Hoan Yoon ◽  
...  
Keyword(s):  
Rare Earth ◽  
Rare Earth Elements ◽  
Ion Adsorption ◽  
Rare Earth Ion

Ion-adsorption rare earth ores of China

2021 ◽  
pp. 63-68
Author(s):  
E. P. Bugrieva ◽  
A. V. Tarkhanov ◽  
Yu. M. Trubakov
Keyword(s):  
Rare Earth ◽  
Rare Earth Elements ◽  
Layer Structure ◽  
Quantitative Estimation ◽  
Total Content ◽  
Lateritic Soil ◽  
Ion Adsorption ◽  
Material Constitution ◽  
Heavy Lanthanides ◽  
Weathered Layer

Geology and geochemistry of China’s ion-adsorption rare earth ores are discussed. The structure and material constitution of Lognan, Huashan, Guposhan and Heling deposits are compared. The weathered layer structure, as well as the distribution, differentiation and occurrence forms of rare earth elements (REE) in the weathered layer are described. The prospecting indicators and criteria of readily dissociated adsorbed REE ore are identified to find this type ores in the territory of Russia. The weathered layer enclosing ion-adsorption rare earth ore features specific differentiation of REE. General composition of such ores is governed by the composition of the primary rare earth mineralization in mother granites. If granites contain much yttrium and heavy lanthanides, then ion-adsorption rare earth ore contain also much yttrium and heavy lanthanides. Regarding differentiation of REE, yttrium and heavy lanthanides mainly concentrate in the middle, most clayey part of the weathered layer, while cerium accumulates in subsurface lateritic soil. The prime feature of ion-adsorption rare earth ore is the prevalence of readily dissociated REE, which can reach a quantity of 80% and more but not less than a half. The rest REE concentrate in relict rock-forming minerals and accessories. The quantitative estimation of adsorption form of REE is necessary for the geological and economic appraisal of a deposit. It is assumed that the quantity of readily soluble REE should be not less than 0.05–50% of the total content. Russia has many regions with such geotectonic environment. It is required to explore ion-adsorption rare earth ore occurrences in these regions.

Selective recovery of rare earth elements from ion-adsorption rare earth element ores by stepwise extraction with HEH(EHP) and HDEHP

2017 ◽  
Vol 19 (5) ◽  
pp. 1345-1352 ◽  
Author(s):  
Xiaowei Huang ◽  
Jinshi Dong ◽  
Liangshi Wang ◽  
Zongyu Feng ◽  
Qiannan Xue ◽  
...  
Keyword(s):  
Rare Earth ◽  
Rare Earth Elements ◽  
Rare Earth Element ◽  
Earth Element ◽  
Mineral Resources ◽  
Ion Adsorption ◽  
Selective Recovery

Ion-adsorption rare earth element (REE) ores are strategic mineral resources, particularly for heavy REEs.

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