Submit an Article
Become a reviewer
Vol 214
Pages:
39
Download volume:

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

Authors:
O. V. Cheremisina
About authors
  • National Mineral Resources University (Mining University)
Date submitted:
2014-10-27
Date accepted:
2014-12-28
Date published:
2015-04-01

Abstract

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.

Go to volume 214

References

  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.

Similar articles

Modeling of geomechanical processes in ore mass using physically nonlinear model
2015 A. G. Protosenya
Improving the technology of open-cast mining using surface miners and spreaders
2015 A. Yu. Cheban
Assessment of complicated systems quality on the basis of stochastic similarity methods
2015 D. A. Pervukhin, A. A. Klavdiev
Improving the precision of manufacturing power hydraulic cylinders of powered roof supports based on a vibration-damping tooling system
2015 V. V. Maksarov, Yu. Olt
Method of controlling the temperature field on the basis of the Green's function
2015 Yu. V. Ilyushin, I. M. Pershin
Productivity of ore and placer gold deposits of the priamur province
2015 V. A. Stepanov, A. V. Melnikov