【作者】 刘德满； 刁江； 王广； 谢兵；

【Author】 Liu Deman;Diao Jiang;Wang Guang;Xie Bing;College of Materials Science and Engineering, Chongqing University;

【机构】 重庆大学材料科学与工程学院；

【摘要】 本文采用X射线光电子能谱（XPS）分析了CaO-SiO₂-FeO-MgO-CrO_x五元渣系中铬的价态,发现Cr³⁺为Cr元素的主要赋存形式,Cr²⁺次之,仅有微量Cr⁶⁺在渣中存在。Cr²⁺含量随着碱度、Cr₂O₃含量和氧分压Log（PO₂）的增加而减少,随温度的增加先增加后减少。Cr³⁺含量随碱度、Cr₂O₃含量和Log（PO₂）的增加而增加,随温度的增加先减少后增加。低碱度、低Log（PO₂）和较高的Cr₂O₃含量有利于减少含铬钢渣中有毒物质Cr⁶⁺的含量。更多还原

【Abstract】 The chromium valence states in CaO-SiO₂-FeO-MgO-CrO_x system was investigated by X-ray Photoelectron Spectroscopy（XPS）. The results indicated that Cr³⁺ is the main existing form of Cr, Cr²⁺ comes second, while only trace amount of Cr⁶⁺ in the slag. The Cr²⁺ content decreases with increasing slag basicity, Cr₂O₃ content or oxygen pressure Log（PO₂）. While with temperature increasing, the Cr²⁺ content increases first and then decreases. The Cr³⁺content increases with increasing basicity, Cr₂O₃ content or oxygen pressure. While with temperature increasing, the Cr³⁺ content decreases first and then increases. Low basicity, low Log（PO₂） and high Cr₂O₃ content are benefit to reduce the toxic Cr⁶⁺.更多还原