Abstract：The content of molybdenum ore was analyzed by energy dispersion X-ray fluorescence spectrometry. Thus, a rapid determination method of six components (Mo, Pb, Cu, Fe, S and K) in tailings, raw ore and rough concentrate of molybdenum ores in beneficiation process was established. Since there was few certified reference material of molybdenum ore, several actual samples with certain content gradients, which were selected from different stages of beneficiation process and then determined by wet method, were used as calibration samples to prepare the calibration curves. Meanwhile, the influence among elements was corrected by the empirical coefficient method and scattering line internal standard method. As a result, the interference of matrix effect and spectral overlapping could be reduced. The correlation coefficients of calibration curves were between 0.999 3 and 1.000 0. The detection limits of elements were between 3 μg/g and 10 μg/g. The precision test of molybdenum ore samples was conducted. It was found that the relative standard deviations (RSD, n=9) of determination results were between 0.22% and 3.7%. The determination accuracy of molybdenum ore samples was also investigated. The results were consistent with those obtained by the wet method.
张敏, 李小莉. 能量色散X射线荧光光谱仪在钼矿选矿流程中的应用[J]. 冶金分析, 2016, 36(3): 54-58.
ZHANG Min, LI Xiao-li. Application of energy dispersion X-ray fluorescence spectrometry in beneficiation process of molybdenum ore. , 2016, 36(3): 54-58.
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