Thermodynamic description of extraction of rare earth metals by carboxylic acids from nitrate media
Authors:
About authors
- Postgraduate student G.V. Plekhanov Saint Petersburg Mining Institute
Abstract
Experimental data on the solvate extraction of cerium(III) and yttrium(III) by solutions of oleic and naphthenic acids in o-dimethylbenzene have been obtained. After mathematical analysis of the dependences of the distribution coefficient on pH and the composition of the organic and aqueous phases, the structure and composition of the solvate complexes, as well as the values of Gibbs free energies and equilibrium constants of the reaction were determined.
References
- Краткий справочник физико-химических величин / Под ред. А.А.Равделя. М.: Высшая школа, 2001.
- Пяртман А.К. Экстракция нитратов лантаноидов (III) и иттрия (III) нафтенатом триалкилбензиламмония в толуоле / А.К.Пяртман, А.А.Копырин, Д.А.Жихарев // Журн. приклад. химии. 2003. Т.76. Вып.1.
- Термические константы веществ: Справочник / Под ред. В.П.Глушко. Т.8. М.: Изд-во АН СССР, 1978.
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