Three-liquid-phase extraction and separation of V(V) and Cr(VI) from acidic leach solutions of high-chromium vanadium-titanium magnetite

Liquid-liquid-liquid three phase system, consisting of acidified primary amine N1923 (abbreviated as A-N1923), poly(ethylene glycol) (PEG) and (NH4)2SO4 aqueous solution, for separation and simultaneous extraction of V(V) and Cr(VI) from the acidic leach solutions of high-chromium vanadium-titanium magnetite345