scholarly journals Enrichment of Rare Earth and Alkaline Earth Elements by Countercurrent Electromigration in Room Temperature Molten Salts

2004 ◽  
Vol 2004-24 (1) ◽  
pp. 656-665
Author(s):  
Masahiko Matsumiya
Keyword(s):  
Rare Earth ◽  
Molten Salts ◽  
Alkaline Earth ◽  
Room Temperature ◽  
Alkaline Earth Elements

Enrichment of rare earth and alkaline-earth elements by countercurrent electromigration in room temperature molten salts

2005 ◽  
Vol 7 (4) ◽  
pp. 370-376 ◽  
Author(s):  
Masahiko Matsumiya ◽  
Kiyotaka Tokuraku ◽  
Haruaki Matsuura ◽  
Ken-ichi Hinoue
Keyword(s):  
Rare Earth ◽  
Molten Salts ◽  
Alkaline Earth ◽  
Room Temperature ◽  
Alkaline Earth Elements

Removal of Alkaline-Earth Elements by a Carbonate Precipitation in a Chloride Molten Salt

2007 ◽  
Author(s):  
Yung-Zun Cho ◽  
In-Tae Kim ◽  
Hee-Chul Yang ◽  
Hee-Chul Eun ◽  
Hwan-Seo Park ◽  
...  
Keyword(s):  
Molten Salt ◽  
Molten Salts ◽  
Alkaline Earth ◽  
Precipitation Method ◽  
Molar Ratio ◽  
Carbonate Precipitation ◽  
Carbonation Reaction ◽  
Injection Method ◽  
Alkaline Earth Elements ◽  
Alkaline Earth Chlorides

Separation of some alkaline-earth chlorides (Sr, Ba) was investigated by using carbonate injection method in LiCl-KCl eutectic and LiCl molten salts. The effects of the injected molar ratio of carbonate ([K2 (or Li2)CO3/Sr (or Ba)Cl2]) and the temperature (450–750 °C) on the conversion ratio of the Sr or Ba carbonate were determined. In addition, the form of the Sr and Ba carbonate resulting from the carbonation reaction with carbonates was identified via XRD and SEM-EDS analysis. In these experiments, the carbonate injection method can remove Sr and Ba chlorides effectively over 99% in both LiCl-KCl eutectic and LiCl molten salt conditions. When Sr and Ba were co-presented in the eutectic molten salt, they were carbonated in a form of Ba0.5Sr0.3CO3. And when Sr was present in LiCl molten salt, it was carbonated in the form of SrCO3. Carbonation ratio increased with a decreasing temperature and it was more favorable in the case of a K2CO3 injection than that of Li2CO3. Based on this experiment, it is postulated that carbonate precipitation method has the potential for removing alkali-earth chlorides from LiCl-KCl eutectic and LiCl molten salts.

THERMOLUMINESCENCE IN ALKALINE-EARTH DOPED KCl IRRADIATED AT ROOM TEMPERATURE

1976 ◽  
Vol 37 (C7) ◽  
pp. C7-158-C7-158
Author(s):  
A. RASCÓN ◽  
J. L. ALVAREZ RIVAS
Keyword(s):  
Alkaline Earth ◽  
Room Temperature

Phase composition of modern microcrystalline modifiers containing silicon, alkaline earth and rare earth metals

2020 ◽  
pp. 25-34
Author(s):  
V. P. Ermakova ◽  
◽  
S. Yu. Melchakov ◽  
V. G. Smirnova ◽  
L. A. Ovchinnikova ◽  
...  
Keyword(s):  
Rare Earth ◽  
Phase Composition ◽  
Alkaline Earth ◽  
Rare Earth Metals
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