Recovery of vanadium

Details Recovery of vanadium Recovery of vanadium

C - Chemistry, Metallurgy

22

B

53/142

C22B 34/22 (2006.01) C01G 31/00 (2006.01) C22B 3/28 (2006.01)

Patent

CA 1178062

- 1 - GC115 ABSTRACT Recovery Of Vanadium The present invention relates to recovering vanadium from solution and, especially, to the oxidation of vanadium to V(v) in aqueous acidic solution employing Caro's Acid, preferably in a high mole ratio of peroxomonosulphuric acid to hydrogen peroxide and, especially, of at least 8:1. By using preferred Caro's Acid solutions, the reaction does not exhibit an induction period, thereby enabling the reaction to be readily controlled by monitoring the electropotential of the treated-vanadium-solution and in response thereto regulating the introduction of the Caro's Acid solution. The vanadium oxidised to the V(v) oxidation state can readily be-removed by contact with tertiary amines or ion exchange resins.

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