Abstract：Rapid and accurate determination of multiple components in furnace slag is not only the requirement of smelting process,but also the requirement of environmental protection and comprehensive utilization of metallurgical waste.The sample was prepared by pressed powder pellet method with polyester (PET) thin film package in experiments.The calibration samples of furnace slag series with certain content gradient were synthesized using the certified reference materials (CRMs) of furnace slag and high purity substance with the same particle size as the sample to be tested.The calibration curves were fitted.Consequently, a rapid analysis method for the simultaneous determination of SiO2,TFe,Al2O3,CaO,MgO,TiO2,S,P2O5 and TMn in blast furnace slag,converter slag,electric furnace slag and open-hearth furnace slag by X-ray fluorescence spectrometry (XRF) was established.The sample preparation with PET package reduced the dust contamination,which deceased the probability of instrument damage to a minimum.Moreover,it could also prevent the sample from being exposed to the air,thus increasing the preservation time of the sample.The spectral overlapping interference and matrix effect were corrected by adjusting the parameters of instrument analysis, controlling the consistency of sample particle size,and using the TL+ equation of OXSAS software.The spectral overlapping interference and matrix effect in complex system of furnace slag were overcome effectively.The determination of components in furnace slag by XRF with pressed powder pellet was realized.The precision tests of blast furnace slag were performed according to the experimental method.The relative standard deviations (RSD, n=10) of measured results were between 0.16% and 2.1%.The proposed method was applied for the determination of components in CRM and actual samples of blast furnace slag,converter slag,electric furnace slag or open-hearth furnace slag.The found results were in good agreement with the certified values or those obtained by fusion methods.
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