Vanadium(V) Extraction from Sulfuric Acid Solutions

L. D. Kurbatova and D. I. Kurbatov

Institute of Solid State Chemistry, Ural Division, Russian Academy of Sciences,
Pervomaiskaya ul. 91, Yekaterinburg, 620219 Russia

Received March 22, 2007

Abstract—We studied vanadium(V) extraction by di-2-ethylhexylphosphoric acid (DEHPA) from 1.0–12.0 M sul-
furic acid. Optimal extraction parameters were determined. IR, ⁵¹V NMR, and electronic spectroscopy was used
to determine the stoichiometry of the extracted complex and the reaction equation for vanadium(V) extraction
by DEHPA. The equilibrium constant of vanadium(V) extraction by DEHPA was determined.

DOI: 10.1134/S0036023608070292

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