| 含铌铁矿粉氢气选择性还原实验研究 |
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| 引用本文： | 陈义胜,田甜. 含铌铁矿粉氢气选择性还原实验研究[J]. 包头钢铁学院学报, 2014, 0(2): 191-196 |
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| 作者姓名： | 陈义胜 田甜 |
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| 作者单位： | 内蒙古科技大学材料与冶金学院; |
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| 基金项目： | 2011年内蒙古自然基金“白云鄂博矿综合利用” |
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| 摘 要： | 实验在自制底供气扩散床管式电阻炉内,研究不同还原时间（30～180 min）和温度（800～1 050℃）下,H2选择性还原含铌铁矿粉中铁氧化物的规律。得到950℃为最佳还原温度,还原2 h还原度达到90.98%,金属化率为86.47%,还原3 h还原度达到94.07%,金属化率为91.11%,而低于这一温度或高于这一温度时,还原度和金属化率在同样还原时间下都有所降低。
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| 关 键 词： | 含铌铁矿粉 H2选择性还原 还原度和金属化率 |
Experimental study on hydrogen selective-reduction of Nb-bearing iron ore powder |
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| CHEN Yi-sheng,TIAN Tian. Experimental study on hydrogen selective-reduction of Nb-bearing iron ore powder[J]. Journal of Baotou University of Iron and Steel Technology, 2014, 0(2): 191-196 |
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| Authors: | CHEN Yi-sheng TIAN Tian |
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| Affiliation: | (Materials and Metallurgy School, Inner Mongolia University of Science and Technology, , Bao tou 014010) |
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| Abstract: | The rule of hydrogen selective-reduction of Nb-bearing iron ore powder was studied through experiments in the homemade diffusion bed tubular resistance furnace with gas blown from the bottom under the different reduction time（ 30 ～ 180 min） and temperature（ 800 ℃ ～1 050 ℃）. The result shows950 ℃ as the best reduction temperature,at which the reduction degree can reach90.98% and the metal rate can reach 86. 47% after being reduced for 2 h; the reduction degree can reach 94. 07%,and the metal rate can reach91. 11% after being reduced for 3 h. While below or above this temperature,both the reduction degree and metal rate were decreased under the same reduction time. |
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| Keywords: | Nb-bearing iron ore powder H2selective reduction the reduction degree and the metal rate |
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