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本文介绍了首次采用高温X射线衍射法代替传统方法,测定攀枝花、钒钛磁铁矿氧化过程的物相变化。绘出了在加Na_2SO_4与不加Ma_2SO_4的条件下,氧化温度与铁、钛物相变化的关系曲线。指出了Na_2SO_4对铁、钛矿物(磁铁矿、赤铁矿、钛铁矿、铁板钛矿和金红石)氧化速度的影响以及对钛矿物向铁矿物中固溶速度的影响。并测定出铁钛过渡相Fe_2O_3·xTiO_2的消长范围,该过渡相与其它钛矿物之间的变化关系。
This article describes the first high-temperature X-ray diffraction method instead of the traditional method to determine the phase transition of Panzhihua, vanadium-titanium magnetite oxidation process. The relationship between the oxidation temperature and the phase transformation of iron and titanium with Na_2SO_4 and without Ma_2SO_4 is plotted. The effect of Na_2SO_4 on the oxidation rate of iron and titanium minerals (magnetite, hematite, ilmenite, tantalite and rutile) and the effect of the titanate on the rate of solid solution in iron minerals are pointed out. The extinction range of Fe_2O_3 · xTiO_2 and the relationship between the transition phase and other titanium minerals were also determined.