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一、含钒液铁吹炼钒渣钒是一种重要战略物资。钒矿有多种,其中出产在秘鲁的绿硫钒矿品位高(含钒19—30％)但储量较少,其矿物组成式为V_2S(+US)、VS_4。储量较多的钒铁矿(FeV_2O_4)同钛铁矿(FeTiO-3)一样与磁铁矿共生,这与V~(3+)、Ti~(4+)与Fe~(3+)三种离子半径相近有关,它们分别为74、68及64pm。故V~(3+)与Ti~(4+)离子可以取代磁铁矿中部分Fe_3O_4中Fe~(3+)离子,而生成FeV_2O_4与Fe
First, vanadium-bearing liquid iron vanadium vanadium slag vanadium is an important strategic material. There are many types of vanadium ore, among which the green vanadium ore produced in Peru is of high grade (19-30% vanadium) but less reserves. Its mineral composition is V_2S (+ US), VS_4. Fe (FeV 2 O 4) with more reserves is symbiosed with magnetite as ilmenite (FeTiO-3), which is related to three kinds of V 3+, Ti 4+ and Fe 3+ The ionic radii are similar, they are 74, 68 and 64pm respectively. Therefore, V ~ (3+) and Ti ~ (4+) ions can replace Fe ~ (3+) ions in some Fe_3O_4 in the magnetite to form FeV_2O_4 and Fe