Separating vanadium from fasting aluminum containing byproducts precipitated during production of titania comprises alkaline digestion of fast-products at a pH to form suspension, adjusting pH value of suspension and obtaining filtrate

摘要

Selective separation of vanadium from fasting aluminum containing byproducts precipitated during the production of titania by the chloride process, comprises (a) alkaline digestion of the fast-products at a pH value of at least 11.5 and 150[deg] C, preferably 70-150[deg] C to form a suspension; and (b) adjusting the pH value of the suspension to 8-10 at at least 80[deg] C to precipitate aluminum hydroxide and obtaining a filtrate.