Method for selectively removing iron, aluminum, titanium and molybdenum from acidic vanadium solution

• Main Authors: WU SAIXIANG, XU HUI, YIN XINGRONG, WU XIONGWEI
• Format: Patent
• Language: Chinese; English
• Published: 01.03.2024
• Subjects: CHEMISTRY; FERROUS OR NON-FERROUS ALLOYS; METALLURGY; PRETREATMENT OF RAW MATERIALS; PRODUCTION AND REFINING OF METALS; TREATMENT OF ALLOYS OR NON-FERROUS METALS

The invention discloses a method for selectively removing iron, aluminum, titanium and molybdenum from an acidic vanadium solution, which comprises the following steps: S1, adding an amino phosphonic acid or amino phosphonate impurity removing agent into the vanadium-containing acidic solution or vanadium ore leaching solution, and stirring for dissolving; s2, adjusting the pH value of the solution obtained in the step S1 to 1-3.5 by using an alkaline substance under stirring; s3, heating the solution obtained in the step S2 to a specified temperature, and continuously reacting for 5-240 minutes; the method is suitable for the technical field of hydrometallurgy, impurities such as iron, aluminum, titanium and molybdenum can be effectively removed at the low PH, the purified liquid is provided for follow-up extraction or ion exchange, and the technological process is simple; the impurity control is good, elements unfavorable for subsequent extraction or ion exchange can be removed, the acidity of the solution