Microstructure Ti–Fe Phase Separation Mechanism in the Direct Reduction Process of Titanomagnetite with Coal by Microwave Heating

Although microwave heating has been used in the field of metallurgy since 1980s, there are few reports on using to strengthen Ti–Fe phase separation reduction process titanomagnetite. Microstructure by was found be beneficial titanomagnetite through investigation formation enthalpy and difficulties. The dielectric properties energy band structure Fe3O4, Fe2O3, TiO2 were determined, constant (ε′r: 20.00) loss (ε″r: 2.82) Fe3O4 significantly superior those 3.42, ε″r: 0.04), physical thermal stress between phases conducive microstructure process. Besides stress, mainly due ampere traction force generated local isotropic ring current adjacent iron atoms. This study revealed mechanism heating.