Abstract：A series of roasted vanadium slag samples have been synthesized by mixing vanadium slag with Na2CO3 and roasting in the different oxidation time at 800 ℃. Then water leaching experiments and X-ray diffraction (XRD) phase analysis were conducted on those materials. The valance state of vanadium in the roasted vanadium slag were studied by X-ray photoelectron spectroscopy (XPS). The results found by XPS were basically consistent with the original composition.The binding energy and half-peak height of V 2p3/2 of these materials were obtained from the narrow scan spectra fitting. The vanadium valence fitting results indicated that along with the prolonging of oxidation time, the content of V increased while the content of V decreased, and V first increased and then decreased.The results were consistent with those of water leaching experiments and XRD analysis.
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SONG Wen-chen, LI Hong, ZHANG Yong-jian, WANG Yan-nan, LI Kun, ZHENG Quan. Analysis of vanadium valence state in roasted vanadium slag by X-ray photoelectron spectroscopy. , 2014, 34(4): 27-31.
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