Vanadium recovery method and device

• Main Authors: YIN XINGRONG, LIN YUANTENG, WU XUEWEN, WU XIONGWEI
• Format: Patent
• Language: Chinese; English
• Published: 09.07.2024
• Subjects: CHEMISTRY; CONTROLLING; FERROUS OR NON-FERROUS ALLOYS; METALLURGY; PHYSICS; PRETREATMENT OF RAW MATERIALS; PRODUCTION AND REFINING OF METALS; REGULATING; SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES; TREATMENT OF ALLOYS OR NON-FERROUS METALS

The invention discloses a vanadium recovery method and device, and relates to the technical field of flow battery electrolyte preparation, and the method comprises the following steps: 1, obtaining vanadium slag: collecting the temperature T1 of vanadium-containing molten iron in a molten pool, the concentration H1 of oxygen blown to the molten pool and the air supply flow V; calculating an actual oxygen amount v1 based on the oxygen concentration H1, wherein v1 = V * H1; based on the temperature T1, the actual oxygen amount h1 and a preset precision oxygen blowing method, oxygen blowing adjustment information is sent to oxygen blowing equipment to adjust the supplied actual oxygen amount v1, and vanadium slag is produced; step 2, roasting; and step 3, leaching: leaching the material obtained by roasting through a solvent, and filtering to obtain a vanadium-containing leachate for preparing vanadium oxide. The method can be used for obtaining enough products while reducing energy consumption and material loss