压片制样-X射线荧光光谱法测定高磷钢渣组分

介绍了粉末压片制样-X荧光光谱法测定炼钢转炉高磷渣中TFe、SiO₂、CaO、MgO、Al₂O_3、MnO、P₂O₅、TiO₂和V₂O₅9种主要组分的方法, 探讨了样品保存方式对氧化钙测定结果的影响。实验表明选择用密封袋保存样品压片可以克服其在放置中氧化钙测定结果的偏低问题。通过选择压片制样的最佳条件减少矿物效应和粒度效应对分析结果造成的偏差, 利用经验系数法进行基体效应、谱线重叠干扰和基体干扰的校正, 实际样品的9种主要组分能被分析。本法的分析结果与电感耦合等离子体原子发射光谱法（ICP-AES）或化学分析法分析结果一致, 相对标准偏差均小于2%。本法可用于炼钢双渣脱磷工艺化学成分的快速监控。

Determination of components in high -phosphorus steel slag by X-ray fluorescence spectrometry with tabletting sample preparation

A method for the determination of nine major components of TFe, SiO₂, CaO, MgO, Al₂O₃, MnO, P₂O₅, TiO₂ and ₂O₅ in high phosphorus slag in steelmaking converter by X-ray fluorescence spectrometry with tabletting sample preparation was described. The influence of sample conservation method on the determination result of calcium oxide was explored. The experiment indicated the conservation of tablet by sealed bag could overcome the lower test result of calcium oxide. By selecting the optimum condition for tablet sample preparation to reduce the analysis result deviation cased by mineral effects and particle size effects and using the empirical coefficient method for the correction of matrix effect, overlap of spectral lines and matrix interference, the analysis of nine major components in real samples could be achieved. The analytical result of proposed method was consistent with that of ICP-AES or chemical analysis method with RSD less than 2%. The method can be used for fast monitoring of chemical composition in steelmaking double slag dephosphorization process.