Optimization of the Technology of Extraction-Based Separation of Rare Earth and Transplutonium Elements Using a New Numerical Method for Calculating Chemical Equilibria

2021 ◽  
Vol 29 (3) ◽  
pp. 325-332
Author(s):  
A. I. KOROBEINIKOV ◽  
S. N. KALYAKIN
Keyword(s):  
Rare Earth ◽  
Numerical Method ◽  
Chemical Equilibria ◽  
Transplutonium Elements

Oxidative digestion of spent sulfocationites containing radioactive rare earth and transplutonium elements

2020 ◽  
Vol 325 (2) ◽  
pp. 667-671
Author(s):  
V. V. Milyutin ◽  
O. V. Kharitonov ◽  
L. A. Firsova ◽  
N. N. Nekrasova ◽  
E. A. Kozlitin
Keyword(s):  
Rare Earth ◽  
Transplutonium Elements

Use of complexones for the extraction separation of rare earth and transplutonium elements with amines

1979 ◽  
Vol 51 (1) ◽  
pp. 27-46 ◽  
Author(s):  
A. A. Kopyrin ◽  
V. D. Murashov ◽  
V. D. Demidov ◽  
V. P. Shvedov
Keyword(s):  
Rare Earth ◽  
Transplutonium Elements ◽  
Extraction Separation

Separation of rare-earth and transplutonium elements by displacement chromatography on S-957 phosphonic ion exchanger

2012 ◽  
Vol 54 (2) ◽  
pp. 164-167 ◽  
Author(s):  
Yu. B. Shumilova ◽  
V. M. Gelis ◽  
V. V. Milyutin ◽  
O. V. Kharitonov ◽  
L. A. Firsova
Keyword(s):  
Rare Earth ◽  
Ion Exchanger ◽  
Displacement Chromatography ◽  
Transplutonium Elements

Extraction of rare-earth and transplutonium elements with dibutyl hydrogen phosphate in m-nitrobenzotrifluoride

2008 ◽  
Vol 50 (4) ◽  
pp. 373-377 ◽  
Author(s):  
S. A. Rodionov ◽  
A. N. Viznyi ◽  
V. M. Esimantovskii ◽  
B. Ya. Zilberman
Keyword(s):  
Rare Earth ◽  
Hydrogen Phosphate ◽  
Transplutonium Elements

VALENCE AND METAL-INSULATOR TRANSITIONS IN THE SPINLESS FALICOV–KIMBALL MODEL INDUCED BY DOPING

2005 ◽  
Vol 19 (23) ◽  
pp. 3603-3612 ◽  
Author(s):  
PAVOL FARKAŠOVSKÝ ◽  
HANA ČENČARIKOVÁ
Keyword(s):  
Rare Earth ◽  
Numerical Method ◽  
Solid Solutions ◽  
Opposite Effect ◽  
Rare Earth Ions ◽  
Metal Insulator ◽  
Samarium Hexaboride ◽  
Insulator Metal Transition ◽  
Magnetic Ions ◽  
Magnetic Ion

The influence of doping on valence and metal-insulator transitions in the spinless Falicov–Kimball model is studied by the well-controlled numerical method. Two types of doping are examined, and namely, the substitution of rare-earth ions by non-magnetic ions that introduce (i) one or (ii) no additional electron (per non-magnetic ion) into the conduction band. It is found that the first type of substitution increases the average f-state occupancy of rare-earth ions, whereas the second type of substitution has the opposite effect. In both cases valence changes are accompanied by a doping induced insulator-metal transition. The results obtained are used to describe valence and metal-insulator transitions in the samarium hexaboride solid solutions.

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