巴西报道了在硼硅酸盐锥形烧瓶中用85％磷酸于230±10℃下溶解钛铁矿。在13min之内定量地溶解样品。用分光光度法和电感耦合原子发射光谱法（IC－AES）两种方法测定Ti。用ICP－AES法测定V和Fe。在几种分析的钛铁矿样品中，Tiq浓度为10．6tfo～57．5％，FeO和几Os别为31．6％～s Brazil reported that ilmenite was dissolved in 85% phosphoric acid at 230 ± 10 ° C in borosilicate conical flasks. Dissolve the sample quantitatively within 13 min. Ti was measured by spectrophotometry and inductively coupled atomic emission spectrometry (IC-AES). V and Fe were measured by ICP-AES. In several analyzes of ilmenite samples, the Tiq concentration was 10.6tfo ~ 57.5%, FeO and several Os were 31.6% ~ s