Abstract：Iron and associated components in vanadium-titanium magnetite ore are the main materials to manufacture steel and alloys. In the past, the major and minor elements are usually determined by the combination of multiple methods. However, the measurement period is long and the cost is high. The sample was prepared by fusion method with mixed flux. Twelve major and minor components in vanadium-titanium magnetite ore (including TFe, TiO2, SiO2, Al2O3, CaO, MgO, V2O5, Cr2O3, MnO, K2O, Na2O and P) were determined by X-ray fluorescence spectrometry (XRF). In order to prevent the corrosion of platinum-gold crucible by sample, the pretreatment of loss on ignition was adopted. 0.3000g of sample and 6.000g mixed flux (m(Li2B4O7)∶m(LiBO2)=67∶33) were melted at 1050℃. The lithium bromide was added in sample melting process as the releasing reagent. The calibration curve was drawn using the standard sample. The theoretical α coefficient was used for calculation. The regression precision of calibration curve was less than 0.3. The detection limits of components of this method were less than 100μg/g. One same sample was used for fusion sample preparation, and the contents of TFe, TiO2, SiO2, Al2O3, CaO, MgO, V2O5, Cr2O3, MnO, K2O, Na2O and P were determined by XRF. The relative standard deviations (RSD, n=5) of determination results could meet the requirements in DZ/T 0130-2006 Geological and Mineral Laboratory Test Management Specification. Four samples were selected and twelve components above were determined according to the experimental method and other methods (i.e., titrimetry, inductively coupled plasma atomic emission spectrometry and spectrophotometry). The difference of measurement results was within the allowable error range required by Analysis Procedure of Vanadium-titanium Magnetite Ore in DZG 93-07 Analysis Procedures of Rocks and Ores.
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