METHOD OF EXTRACTING VANADIUM FROM ACID SOLUTIONS

摘要

FIELD: metallurgy.SUBSTANCE: proposed method comprises vanadium extraction by treatment with extracting agent composed of secondary aliphatic alcohol at increased temperature to obtain vanadium-containing extract. Vanadium is then re-extracted by ammonium solution to obtain vanadium-containing solution and vanadium-free extracting agent to be directed to extraction stage. Said extracting agent represents said secondary aliphatic alcohol with the number of atoms of 8-12. Extraction is carried out in a-3 steps at organic phase-to-water phase ratio of 0.5:5.1, temperature of 40-60°C and solution pH of 1.5-3.0. Before re-extraction of vanadium the extract is flushed by weak-acid solution to be added after flushing to initial acid solution.EFFECT: higher yield of high-purity vanadium.6 cl, 7 ex