Solvent extraction of chromium and vanadium

Details Solvent extraction of chromium and vanadium Solvent extraction of chromium and vanadium

C - Chemistry, Metallurgy

22

B

53/118

C22B 34/22 (2006.01) C22B 3/28 (2006.01) C22B 34/32 (2006.01)

Patent

CA 1124083

TITLE SOLVENT EXTRACTION OF CHROMIUM AND VANADIUM INVENTORS Bernard H. Lucas Gordon M. Ritcey ABSTRACT OF THE DISCLOSURE Chromium and vanadium can be co-extracted from alkaline solutions or leach liquors containing these metals using quaternary amine solvent mixtures. The alkaline leach liquors usually are derived by leaching of calcined ores or concentrates. The loaded solvent mixture is scrubbed with chromium solution to remove all metals except chromium, and the chromium is then recovered from the solvent phase. The vanadium can be recovered from the scrub liquor. Recovery of aluminum is also possible.

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