Behavior of Gaseous Reduction of Molten Slag Containing Niobium Oxide
Behavior of Gaseous Reduction of Molten Slag Containing Niobium Oxide
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DOI：
10.2355/tetsutohagane1955.74.5_794
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发表时间：
1988-05
影响因子：
0.3
通讯作者：
K. Sakuraya;Sadao Furuyama;Shiro Yoshimatsu
中科院分区：
文献类型：
--
作者：
K. Sakuraya;Sadao Furuyama;Shiro Yoshimatsu
概要： 为了制造优质铌铁合金，研究了含氧化铌熔渣的气态还原行为。含氧化铌的熔渣在高纯氧化镁或纯铁制成的坩埚中用H2气体、CO气体和H2-CO气体混合物进行还原。结果如下； (1) 炉渣中的氧化铁和P2O5在1 450℃下很容易被H2气体还原，而被CO气体轻微还原。 (2)在1 350～1 550℃温度范围内，H2或CO气体几乎不还原除FeO、Fe2O3和P2O5外的炉渣元素。 (3)炉渣中MgO含量的增加加速了H2气体对FeO的还原。 (4)还原渣中(%FeO)与(%P205)之间的关系如下式所示：(%P205)=0.037(%Fe0)+0.04
Synopsis : The behavior of gaseous reduction of molten slag containing niobium oxide was examined for thepurpose of making ferro-niobium alloy of good quality. The molten slag containing niobium oxide was reduced in the crucibles made of high purity magnesia or pure iron with H2 gas, CO gas and H2-CO gas mixtures. The results are as folows; (1) Iron oxide and P205 in the slag were easily reduced with H2 gas while they were slightly reduced with CO gas at 1 450•‹. (2) The slag elements except FeO, Fe203 and P205 were scarcely reduced with H2 or CO gas in the temperature range from 1 350 to 1 550•Ž. (3) The reduction of FeO with H2 gas was accelerated by the increase in MgO content in slag. (4) The relation between (%FeO) and (%P205) in reduced slags is expressed in the following equation: (%P205)= 0.037(%Fe0)+ 0.04