Application of binary exractants of scandium

  • Yelena Zlobina al-Farabi Kazakh National University
  • Lidiya Pak al-Farabi Kazakh National University
DOI: https://doi.org/10.15328/chemb_2013_4168-176
Keywords: scandium, binary extraction, threeoktylamin, threealkylbenzilammonium chloride, di-(2-etylgexyl)-phosphoric acid, di-(2-etylgexyl)-ditiophosphoric acid, recovery degree

Abstract

For extraction of scandium multicomponent solutions obtained binary extractants (BE), based on organic acids (di-2-ethylhexyl-phosphoric acid (D2EHPA), di-2-etylgexyl-ditiophosphoric acid) and organic bases (threealkylbenzilammonium chloride(TABAСH), threeoktylamin). The effect of extractant composition, concentration and nature of mineral acids, the contact time the organic and aqueous phases, the metal concentration in the aqueous phase by extraction of scandium extractants binary were researched. It was established that the composition of the extractant D2EHPA-TABACH quantitatively extracts scandium into the organic phase. Concentration extraction constant Kex = 0.88. This BE allows to separatescandium from the metal impurities Al, Fe, Ca, Na, K, Mg, Cu, V, Cr, Mn, Co, Ni.

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Published
2013-09-14
How to Cite
Zlobina, Y., & Pak, L. (2013). Application of binary exractants of scandium. Chemical Bulletin of Kazakh National University, 72(4), 168-176. https://doi.org/https://doi.org/10.15328/chemb_2013_4168-176
Issue
Vol 72 No 4 (2013): Chemical Bulletin of Kazakh National University
Section
Inorganic Chemistry
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