Study on the Properties of Vanadium Pellets Extracted from Vanadium Titanium Magnetite Concentrate by Calcium Roasting and Acid Leaching

In this study, a clean pellet production method of calcium roasting and sulfuric acid leaching vanadium from titanium magnetite concentrates is proposed, which can effectively separate iron, the pellets after extraction be used as raw material for iron making secondary roasting. During experiment, only 2% Ca(OH)2 was added calcifier to make pellets, extracted by calcination. Under optimum conditions, rate 74.51%, 1.05%. After roasting, compressive strength 2358 N, qualification 97%. Additionally, extraction, impurities in were partially removed, content increased 6.6%, more conducive subsequent ironmaking. The experiments show that based on smelting use better extract concentrate, while avoiding problems excessive additives reduce grade pellets. Or pursuit high seriously damaged difficult later. This process perform comprehensive utilization magnetite, has certain guiding significance industrial production.