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Extraction of rare-earth elements with solutions of di-(2-ethylhexyl)phosphoric acid in flow-through system under local vibrational treatment

  • Inorganic Synthesis and Industrial Inorganic Chemistry
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Abstract

Results obtained in a study of the influence exerted by the vibrational treatment in the dynamic interfacial layer on the extraction of rare-earth elements with solutions of di-(2-ethylhexyl)phosphoric acid in a diluent in a flow-through system are presented. It was shown that the coefficient of extraction acceleration under a local vibrational treatment of the dynamic interfacial layer is smaller than that in the static system and is determined by the nature of an element being extracted and a solvent, frequency and amplitude of oscillations of the vibration element, and fluid flow rate. The degree of extraction of rare-earth elements in a certain time is noticeably higher and can reach a double excess if there is a local vibrational treatment of the dynamic interfacial layer. In this case, the accumulation of a lanthanide in the dynamic interfacial layer is substantially lower, and it does not exceed 10% of the total amount of rare-earth elements in the system.

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Authors and Affiliations

  1. Novomoskovsk Institute, Dmitry Mendeleev University of Chemical Technology of Russia, ul. Druzhby 8, Novomoskovsk, Tula oblast, 301665, Russia

    E. N. Golubina & N. F. Kizim

Authors
  1. E. N. Golubina
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  2. N. F. Kizim
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Correspondence to E. N. Golubina.

Additional information

Original Russian Text © E.N. Golubina, N.F. Kizim, 2016, published in Zhurnal Prikladnoi Khimii, 2016, Vol. 89, No. 11, pp. 1386−1391

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Golubina, E.N., Kizim, N.F. Extraction of rare-earth elements with solutions of di-(2-ethylhexyl)phosphoric acid in flow-through system under local vibrational treatment. Russ J Appl Chem 89, 1757–1762 (2016). https://doi.org/10.1134/S1070427216110045

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  • DOI: https://doi.org/10.1134/S1070427216110045

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