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Vol 214
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Extraction of rare earth metals of di-2-ethylhexyl phosphoric acid from phosphoric solutions

O. V. Cheremisina
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  • National Mineral Resources University (Mining University)
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The paper is devoted to solvent extraction of rare earth metals exemplified by Сe, Y from standard test and industrial solutions of wet-process phosphoric acid with di-2-ethylhexyl phosphoric acid used as extractant. The mechanism of rare earth metals extraction with di-2-ethylhexyl phosphoric acid was determined and studied on the basis of calculated thermodynamic characteristics. The paper considers the influence of impurity ions (Fe 3+ , Mg 2+ , ) on extraction of rare earth metals using industrial solutions. It has also been determined that for a stripping process the use of sulfuric acid solutions in concentration of 2 mol/l is the most preferable.

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  1. Лебедев И.А. Термодинамические константы устойчивости фосфатных комплексов // Журнал неорганической химии. 1978. Т.23. № 12. С.3215-3227.
  2. Михайличенко А.И. Некоторые вопросы экстракции нитратов редкоземельных элементов НФОС / А.И.Михайличенко, P.M.Пименова // Журнал неорганической химии. 1973. Т.18. № 7. С.1907-1911.
  3. Михайличенко А.И. Экстракция редкоземельных элементов ди-(2-этилгексил)-ортофосфорной кислотой из азотнокислых растворов / А.И.Михайличенко, P.M.Пименова // Радиохимия. 1969. Т.1. Вып.1. С.8-13.
  4. Михайличенко А.И. Экстракция тяжелых редкоземельных элементов ди-(2-этилгексил)фосфорной кислоты / А.И.Михайличенко, P.M.Пименова // Журнал неорганической химии. 1969. Т.14. Вып.6. С.1611-1617.
  5. Михайличенко А.И. Редкоземельные металлы / А.И.Михайличенко, Е.Б.Михлин, Ю.Б.Патрикеев. М.: Метал-лургия, 1987. 232 с.
  6. Растворимость фосфата церия (III) в фосфорной кислоте / Д.Э.Чиркст, И.А.Дибров, О.В.Черемисина, И.В.Мелихов // Журнал физической химии. 1991. Т.65. № 8. С.2180-2183.
  7. Саввин С.Б. Арсеназо III. М.: Атомиздат, 1966. 175 с.
  8. Химия комплексных соединений редкоземельных элементов / К.Б.Яцимирский, Н.А.Костромина, 3.А.Шека и др. Киев: Наукова думка, 1966. 494 с.
  9. Bis(2-ethylhexyl)hydrogen phosphate, Material Measurement Laboratory. Режим доступа: http://webbook.nist. gov/cgi/cbook.cgi?ID = C298077&Units = CAL&Mask = 80#IR-Spec.
  10. Liquid-liquid extraction and separation possibilities of heavy and light rare-earths from phosphoric acid solutions with acidic organophosphorus reagents / S.Radhika, B.Nagaphani Kumar, M.Lakshmi Kantam, B.Ramachandra Reddy // Separation and Purification Technology. 2010. Vol.75. N 3. P.295-302.
  11. Recovery of rare earths from wet-process phosphoric acid / L.Wang, Z.Long, X.Huang, Y.Yu, D.Cui, G.Zhang // Hydrometallurgy. 2010. Vol.101. N 1-2. P.41-47.
  12. Solvent extraction and separation of rare-earths from phosphoric acid solutions with TOPS 99 / S.Radhika, B.Nagaphani Kumar, M.Lakshmi Kantam, B.Ramachandra Reddy // Hydrometallurgy. 2011. Vol.110. N 14. P.50-55.

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