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公布号:CN105675586A公布日:2016.06.15申请人:江苏省沙钢钢铁研究院有限公司摘要:本发明涉及一种钢中铌相的定量分析方法。屑状钢铁试样用卤素-有机溶剂在室温下超声快速溶解,固溶铌溶解在卤素-有机溶剂的溶液中,而碳化铌和氮化铌等保留在残渣中。过滤残渣,滤液经水浴蒸干,加混合酸处理后,得第一溶液;用强碱溶液分解残渣中氮化铌,过滤后,得第二溶液;
Publication Number: CN105675586A Publication date: 2016.06.15 Applicant: Jiangsu Shagang Iron and Steel Research Institute Co., Ltd. Abstract: The present invention relates to a method for quantitative analysis of niobium phase in steel. The swarf steel samples were quickly dissolved ultrasonically with halogen-organic solvents at room temperature. The dissolved niobium was dissolved in a solution of halogen-organic solvent while niobium carbide, niobium nitride and the like remained in the residue. The residue was filtered, the filtrate was evaporated to dryness in a water bath, mixed acid treatment, the first solution; with strong alkali solution decomposition niobium nitride, after filtration, the second solution;