Thermodynamic of lanthanum (iii) and samarium (iii) extraction by using stoichiometric concentration solutions of naphtenic acid
About authors
- 1 — Ph.D. assistant lecturer National Mineral Resources University (Mining University)
- 2 — Ph.D. associate professor National Mineral Resources University (Mining University)
- 3 — Ph.D., Dr.Sci. professor National Mineral Resources University (Mining University)
- 4 — postgraduate student National Mineral Resources University (Mining University)
- 5 — postgraduate student National Mineral Resources University (Mining University)
Abstract
Experimental data on solvent extraction of lanthanum (III) and samarium (III) by solutions of naphthenic acid from nitrate medium was obtained. Dependences of distribution coefficient of pH, concentration of organic and aqueous phase was obtained. thermodynamic characteristics of extraction equilibrium was calculated.
Область исследования:
(Archived) Without section
Keywords:
Thermodynamic
extraction
rare earth metals
separation
lanthanides
TR
carboxylic acids
naphthenic acid
Funding:
None
References
- Voldman G.M. Theory of hydrometallurgical processes / G.M.Voldman, G.M.Zelekman. Мoscow. 2003. 464 p.
- Gindin L.M. Extraction processes and technology. Moscow, 1984. 144 p.
- Michailichenco A.I. Rare earth metals / A.I.Michilichenco, E.B.Michlin, J.B.Patrikeev. Мoscow, 1987. 232 р.
- Flett D.S. Solvent extraction in hydrometallurgy: the role of organophosphorus extractants // Journal of Or-ganometallic Chemistry. 2005. Vol.690. P. 2426-2438.
- Miller F. Carboxylic acids as metal extractants // Talanta rev. 1974. Vol.2. P.685-703.
- Singh D.K. Extraction of rare earths and yttrium with high molecular weight carboxylic acids / D.K.Singh, H.P.Singh, J.N.Mathur // Hydrometallurgy. 2006. Vol.81. P.174-181.
- Preston J.S. Solvent extraction of metals by carbox-ylic acids // Hydrometallurgy. 1985. Vol.14. P.171-188.
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