The invention relates to a method for producing synthetic
rutile by using ilmentie, in particular to a method for producing synthetic
rutile by using deluvial slope type ilmentie. The method comprises the following steps of: performing
reduction treatment on the deluvial slope type ilmentie, wherein reducing agents are
coal,
tar and the like; controlling a reduction temperature and a reduction time; performing oxidation treatment on the reduced ilmentie at the temperature of between 700 and 900 DEG C until a shell of
rutile microcrystal and a
ferric layer is generated on a mineral surface, wherein an oxidant is
oxygen; performing atmospheric multi-segment counterflow
fluidization leaching on the oxidized ilmentie by using diluted
hydrochloric acid, controlling a concentration of the diluted
hydrochloric acid and an acid leaching temperature, and then removing soluble impurities in the ilmentie after more than three segments of leaching; and then washing, filtering,
drying and
roasting the leached material after being subjected to acid leaching to obtain the synthetic rutile. The method has the advantages of preventing pulverization, keeping a crude ore grain size, along high acid leaching efficiency, high use ratio, simple process, low cost and easy operation.