Jin Yongli, Han Futie, Yu Hai, Zhao Zengwu, Zhang Jieyu. Effect of Magnetic Field on Reduction of Iron Oxides Containing SiO2 and CaO[J]. IRON STEEL VANADIUM TITANIUM, 2018, 39(6): 103-109. doi: 10.7513/j.issn.1004-7638.2018.06.017
Citation:
Jin Yongli, Han Futie, Yu Hai, Zhao Zengwu, Zhang Jieyu. Effect of Magnetic Field on Reduction of Iron Oxides Containing SiO2 and CaO[J]. IRON STEEL VANADIUM TITANIUM, 2018, 39(6): 103-109. doi: 10.7513/j.issn.1004-7638.2018.06.017
Jin Yongli, Han Futie, Yu Hai, Zhao Zengwu, Zhang Jieyu. Effect of Magnetic Field on Reduction of Iron Oxides Containing SiO2 and CaO[J]. IRON STEEL VANADIUM TITANIUM, 2018, 39(6): 103-109. doi: 10.7513/j.issn.1004-7638.2018.06.017
Citation:
Jin Yongli, Han Futie, Yu Hai, Zhao Zengwu, Zhang Jieyu. Effect of Magnetic Field on Reduction of Iron Oxides Containing SiO2 and CaO[J]. IRON STEEL VANADIUM TITANIUM, 2018, 39(6): 103-109. doi: 10.7513/j.issn.1004-7638.2018.06.017
1. School of Materials and Metallurgy, Inner Mongolia University of Science and Technology, Baotou 014010, Inner Mongolia, China;
2. School of Materials Science and Engineer, Shanghai University, Shanghai 200444, China;
3. Inner Mongolia Key Laboratory for Utilization of Bayan Obo Multi-metallic Resources, Elected State Key Laboratory, Baotou 014010, Inner Mongolia, China
Received Date: 2018-06-21 Available Online:
2023-12-02
In order to investigate the effects of magnetic field on the reduction of iron oxides, 93% Fe2O3-2.5%SiO2-4.5% CaO system had been taken to carry out a constant magnetic field（CMF） test. The reduction conversion efficiency of Fe2O3, the phase composition and micromorphology of the reaction product, and the reaction kinetics were analyzed. The results show the reduction of Fe2O3 has been greatly enhanced in a CMF equal to 1.02 T. Compared with the reaction without a magnetic field, with a CMF（B=1.02 T） there is no new phase formed in the gas-solid reaction and the reduction product exhibits a porous structure. The internal diffusion coefficient obtained in a CMF is 1.34 times higher than that without a magnetic field.
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