Process of Extracting Niobium with Solid Oxidizer from Pig Iron
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摘要: 提出了用固態氧化劑(軋鋼鐵皮或高品位鐵精礦)從包頭鐵水提鈮的工藝,簡稱鐵水固氧提鈮工藝。實驗得到了固氧提鈮最佳工藝參數:鐵水溫度為1350℃;W(氧化劑重量/生鐵重量)為5%~10%。探討了非標準狀態下,固氧提鈮過程鐵水中的Nb、Si、Mn、C和P的熱力學行為,分析了氧化劑加入量對鐵水溫度的影響。Abstract: The process of extracting niobium with solid oxidizer(Fe3O4) from hot iron (called SOENb for short) produced in Baotou China was advanced. The optinum process parameters were below:The temperature of hot iron is 1 350℃; W(oxidizer burden weight/hot iron weight) is 5%-10%. The thermodynamical action of Si, Mn, C, P, Nb in hot iron under the actual conditions was discussed and the effect of oxidizer burden on the iron temperature was analysed.
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Key words:
- hot iron /
- oxidation /
- technology/extracting niobium /
- solid oxidizer /
- thermodynamics analysis
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