Recovery of Rare Earth Elements from Acidic Mine Waters by integration of a Selective Chelating Ion-Exchanger and a Solvent Impregnated Resin

2021 ◽  
pp. 105906
Author(s):  
M. Hermassi ◽  
M. Granados ◽  
C. Valderrama ◽  
C. Ayora ◽  
J. L Cortina
Keyword(s):  
Rare Earth ◽  
Rare Earth Elements ◽  
Ion Exchanger ◽  
Mine Waters ◽  
Impregnated Resin

Application of ion-exchanger phase spectrofluorimetry to the determination of micro-amounts of some rare earth elements by flow analysis

The Analyst ◽  
1992 ◽  
Vol 117 (2) ◽  
pp. 189 ◽  
Author(s):  
Kazuhisa Yoshimura ◽  
Shiro Matsuoka ◽  
Toyohisa Tabuchi ◽  
Hirohiko Waki
Keyword(s):  
Rare Earth ◽  
Rare Earth Elements ◽  
Flow Analysis ◽  
Ion Exchanger

scholarly journals Storage and processing of acid waste waters of mining enterprises

2019 ◽  
Vol 98 ◽  
pp. 01041
Author(s):  
Alexei Plyusnin ◽  
Olga Smirnova ◽  
Paul Robinson
Keyword(s):  
Rare Earth ◽  
Rare Earth Elements ◽  
Pore Space ◽  
Mine Waters ◽  
Long Term Storage ◽  
Heavy Rare Earth Elements ◽  
Acid Mine Waters ◽  
Acidic Waters ◽  
Acid Waste

In the present work, the formation of the chemical composition of acid mine waters in the area of waste disposal of mining and processing of tungsten ores of Transbaikalia (Russia) is considered. It is shown that during long-term storage of processing waste in the pore space, acidic waters with a high content of rare-earth elements accumulate. During the recycling of waste in the washings, a change occurs in the ratio of light and heavy rare earth elements. When water is neutralized with limestone, solid phases of these elements are formed, which can be extracted.

Neodymium isotopes track sources of rare earth elements in acidic mine waters

2020 ◽  
Vol 269 ◽  
pp. 465-483 ◽  
Author(s):  
Irene L.R. Wallrich ◽  
Brian W. Stewart ◽  
Rosemary C. Capo ◽  
Benjamin C. Hedin ◽  
Thai T. Phan
Keyword(s):  
Rare Earth ◽  
Rare Earth Elements ◽  
Mine Waters ◽  
Neodymium Isotopes

Recovery of rare earth elements from coal fly ash using TEHDGA impregnated resin

2019 ◽  
Vol 185 ◽  
pp. 93-101 ◽  
Author(s):  
S. Mondal ◽  
A. Ghar ◽  
A.K. Satpati ◽  
P. Sinharoy ◽  
D.K. Singh ◽  
...  
Keyword(s):  
Rare Earth ◽  
Fly Ash ◽  
Rare Earth Elements ◽  
Coal Fly Ash ◽  
Impregnated Resin

scholarly journals Recovery of rare earth elements from acidic mine waters: An unknown secondary resource

2021 ◽  
pp. 152258
Author(s):  
M. Hermassi ◽  
M. Granados ◽  
C. Valderrama ◽  
C. Ayora ◽  
J.L. Cortina
Keyword(s):  
Rare Earth ◽  
Rare Earth Elements ◽  
Mine Waters ◽  
Secondary Resource

scholarly journals Purification And Separation Of Rare Earth Elements From CCFL With Extraction Chromatography

2015 ◽  
Vol 60 (2) ◽  
pp. 1529-1533
Author(s):  
J.-G. Kim
Keyword(s):  
Rare Earth ◽  
Solid State ◽  
Rare Earth Elements ◽  
Extraction Chromatography ◽  
Extraction Rate ◽  
X Ray ◽  
Ph Values ◽  
Impregnated Resin ◽  
Standard Solution

Abstract In this study, Amberite XAD-7HP was used as the solvent-impregnated resin to separate each REE from the standard solution, which was mixed with the REEs (e.g., La Eu, Tb, Y and Ba). About 100 ppm of each of the REEs was separated from DI water using extraction chromatography. REEs were separated by extraction chromatography using Amberite XAD-7HP resin, the changes in the pH values of the HCl and HClO4 were between 0.2 N and 5 N, and the extraction rate of the solution was between 0.5 and 3 ml/min. The La solution with the separated REEs was leached. The solid-state REEs were annealed between 1083K. The extraction result was analyzed with ICP-AES and an X-ray diffractometer. Each REE was successfully separated with HCl and HClO4 with pH values between 0.1 N and 3 N and with extraction rate between 1.0 m/min and 3.0 m/min.

Sign in / Sign up

Export Citation Format

Share Document