Microwave-Absorbing of Carbothermic Reduced Products of Ilmenite and Oxidized Ilmenite

Microwave-absorbing characteristics of carbothermic reduction products of ilmenite and oxidized ilmenite were investigated by the method of microwave cavity perturbation and XRD. Results show that there is a great change of microwave-absorbing characteristics of reduction product from oxidized ilmenite by microwave heating at temperatures of 1000 oC, 1050 °C and 1100 °C. Microwave-absorbing characteristics of reduction products from ilmenite by microwave heating at temperatures of 1000 °C and 1050 °C become strong, the increasing of diffraction intensity of the characteristic peak of FeTi2O5 from 850 CPS to 1250 CPS is the main reason for the great change of microwave-absorbing characteristics of reduction products in the temperature range of 1000 C-1050 °C. Microwave-absorbing characteristics of reduction product from ilmenite by microwave heating is greater than that of reduction product from oxidized ilmenite by microwave heating.