Abstract: Taking the raw ore,concentrate and tailings from Baima concentrate in Panxi zone as the research object,the chemical elements,mineral compositions and monomer dissociation degree of the samples were analyzed by means of chemical analysis and AMICS.The content of titanomagnetite,ilmenite and gangue,the degree of dissociation of titano-magnetite monomer,the main loss of Fe and change of titanium content were investigated when the grade of Baima iron concentrate was raised to 59%. The main reason for the difficulty in reducing TiO₂ content in the extracted Baima iron concentrate is that the lamellar ilmenite and fine acicular ilmenite spinel present in the form of micro fine inlay.