Kinetics of the Isothermal Reduction of Fe2O3 with Hydrogen
in a Magnetic Field
P. A. Chernavskya,b,* and G. V. Pankinaa,c
a Department of Chemistry, Moscow State University, Moscow, 119991 Russia
b Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Moscow, 170100 Russia
c Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, Moscow, 119071 Russia
Correspondence to: *e-mail: chern5@inbox.ru
Received 1 July, 2021
Abstract—The formation of wustite is observed during the isothermal reduction of hematite (Fe2O3) hydrogen at a volumetric flow rate of 6 × 104 h−1 in the temperature range of 300–500°С. Wustite forms at temperatures below the thermodynamic limit of FeO phase existence. It is found that an external magnetic field affects the rate of hematite reduction. Raising the strength of the field from 50 Oe to 5 kOe notably accelerates the rate of the reaction. It is assumed that a magnetic field can initiate spin conversion, especially singlet–triplet transitions.
Keywords: isothermal kinetics, reduction of iron oxides, influence of an external magnetic field
DOI: 10.1134/S0036024422020066