Abstract: Resonance method is used to measure the microwave adsorption property of titanium concentrate at various particle sizes and to study its relationship with the heat source strength P of the microwave field.The results show that the optimal particle size of Panzhihua's and Yunnan's concentrates is 80~100 mesh or 180~200mesh, at which, the material dielectric coefficient ε can reach the maximum value and the corresponding heat source strength P of the microwave field is also at its highest value.The optical particle size of the titanium concentrate in the microwave field is further determined through the test to be 180~200 mesh.This has provided a theoretical basis for the application of microwave in the metallurgical field for the purpose of energy saving.

Key words: Titanium concentrate, Microwave field, Particle size, Microwave adsorption characteristics