包頭鐵水固氧提鈮的工藝

Process of Extracting Niobium with Solid Oxidizer from Pig Iron

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.