Abstract: In order to realize the synergistic recovery of iron，titanium and other strategic metal re ⁃ sources in a low-grade vanadium-titanium magnetite in Western Panzhihua，the mineral composition，dis⁃ semination characteristics and occurrence state of harmful elements of the ore were identified by means of chemical multi-element analysis，X-ray diffraction，optical microscopy and scanning electron microscopy. On this basis，the magnetic flotation combined process of three-stage grinding and step separation-magnet ⁃ ic separation tailings floating titanium was designed for closed-circuit test.The results show that the ore grade of TFe,TiO2,S and P is 15.19%,6.81%,0.36%and 1.24%,respectively,which belongs to the gab⁃ bro type high titanium lean ore.The main valuable minerals of the ore are titanomagnetite and ilmenite. The gangue is mainly composed of pyroxene,feldspar and chlorite.Phosphorus mainly occurs in apatite. The ore structure is complex,with meteorite structure,embedded crystal structure and solid solution separa ⁃ tion structure.Fine flake and tabular ilmenite exsolution are developed in titanomagnetite.Apatite often oc⁃ curs in the form of inclusions in the target minerals,which is the key factor affecting the quality of concen ⁃ trate.The vanadium-titanium magnetite concentrate with TFe grade of 55.94%and recovery of 37.75%can be obtained by three-stage grinding.The titanium concentrate with TiO2 grade of 47.26%and recovery rate of 23.23%was obtained by three-stage high-intensity magnetic separation-low-intensity magnetic separa⁃ tion-sulfur removal-one roughing and four cleaning flotation process for magnetic separation tailings，and the phosphorus content was reduced to 0.026%.The process realizes the efficient separation and synergis ⁃tic recovery of iron and titanium resources，and effectively controls the phosphorus impurities，which pro⁃ vides a technical reference for the clean utilization of similar refractory high phosphorus vanadium titano ⁃ magnetite.

Key words: low-grade vanadium-titanium magnetite, ilmenite, process mineralogy, co-recovery