Abstract：The contents of TiO2, SiO2, CaO, MnO, MgO and TFe in high titanium slag are usually determined by titrimetric methods or photometric methods. However, these methods are relatively time-consuming, the consumption of chemical reagents is large, and the workload is heavy. Therefore, it is necessary to develop a simple and rapid analysis method with high accuracy for the simultaneous determination of multi-elements. The sample was prepared by powder pressing method. The six components including TiO2, SiO2, CaO, MnO, MgO and TFe in high titanium slag were determined by energy dispersive X-ray fluorescence spectrometry (EDXRF). High titanium slag with particle size of 20 μm was selected, and boric acid was used as binder to edge the bottom. The samples prepared under the experimental conditions (pressure of 25 MPa and holding time of 5 min) were smooth and crack-free, and could be stored for a long time. Due to the shortage of high titanium slag standard sample, according to the content range of each component in the high titanium slag sample, the calibration curve was established using self-made reference standard samples with certain concentration gradient, which were prepared by certified reference materials of high titanium slag and high-purity reagents. Meanwhile, the matrix effect was corrected by fundamental parameter method. The correlation coefficients of calibration curves for testing components were not less than 0.998 0. The limits of detection (LOD) were between 0.002 5% and 0.037%. The relative standard deviations (RSD, n=8) of determination results were between 0.10% and 1.5%. The proposed method was applied for the analysis of actual high titanium slag samples, and the found results were in good agreement with those obtained by chemical wet method in industrial standard YS/T 514 series.
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