| 高铝铁矿焙烧球团非等温还原研究 |
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| 引用本文： | 张作良,陈韧,孙野,李晓亮,李玲玲,李猛,邹宗树.高铝铁矿焙烧球团非等温还原研究[J].材料与冶金学报,2017,16(2). |
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| 作者姓名： | 张作良 陈韧 孙野 李晓亮 李玲玲 李猛 邹宗树 |
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| 作者单位： | 1. 辽宁科技学院冶金工程学院,辽宁本溪,117004;2. 东北大学冶金学院,沈阳,110819 |
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| 基金项目： | 辽宁科技学院博士科研启动基金，辽宁省教育厅一般项目，辽宁省自然科学基金 |
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| 摘 要： | 采用CO、H_2对高铝铁矿焙烧球团在高温同步热分析仪(NETZSCH STA 409C/CD)中进行非等温还原.结果表明:焙烧球团经CO还原后,随着设定温度由1 273 K升高到1 473 K,最终还原度由32.21%仅增加到46.78%;而经H_2还原后,随着设定温度由1 273 K升高到1 573 K,最终还原度由81.93%增加到100%.在纯氢气还原条件下,高铝铁矿焙烧球团中的铁氧化物是可以被彻底还原的.
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| 关 键 词： | 高铝铁矿石 焙烧球团 非等温还原 还原度 铝铁分离 |
Non-isothermal reduction investigation on roasted pellets of high alumina iron ore |
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| Zhang Zuoliang,Chen Ren,Sun Ye,Li Xiaoliang,Li Lingling,Li Meng,Zou Zongshu.Non-isothermal reduction investigation on roasted pellets of high alumina iron ore[J].Journal of Materials and Metallurgy,2017,16(2). |
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| Authors: | Zhang Zuoliang Chen Ren Sun Ye Li Xiaoliang Li Lingling Li Meng Zou Zongshu |
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| Abstract: | Non-isothermal reduction for roasted pellets of high alumina iron ore through a high temperature synchronized thermal analyzer (NETZSCH STA 409C/CD) was conducted with CO and H2.The results showed that when the roasted pellet is reduced by CO, with the temperature increasing from 1 273K to 1 473K, the final reduction degree rises from 32.21% to 46.78%.While it is reduced by hydrogen, with the temperature increasing from 1 273K to 1 573K, the final reduction degree rises from 81.93% to 100%.It suggests that the iron ore can completely be reduced to metallic iron by hydrogen. |
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| Keywords: | high alumina iron ore roasted pellets non-isothermal reduction reduction degree Al-Fe separation |
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