The invention discloses a method for separating
vanadium-
titanium magnetite to extract iron,
vanadium and
titanium, comprising the following steps of: magnetically selecting raw
magnetite, that is, acquiring iron-
vanadium concentrate and
tail magnetite after performing magnetic selection on the vanadium-
titanium magnetite; sorting titanium concentrate from the
tail magnetite, that is, acquiring the titanium concentrate after performing floating selection on the obtained
tail magnetite;
roasting and magnetically selecting the titanium concentrate, that is, performing enriched-titanium
impurity-removing magnetic selection after
roasting the titanium concentrate; finely selecting the iron-vanadium concentrate, that is, performing the magnetic selection and fine section again on the iron-vanadium concentrate obtained from magnetic selection; reducing and
smelting, that is, mixing the titanium concentrate obtained from the
impurity-removing process with the iron concentrate according to the
beneficiation yield, adding in a
reducer and soda ash to perform reduced iron and vanadium
smelting process; purifying vanadium
slag, that is, removing the
impurity of the vanadium
slag obtained by reducing and
smelting by using the acidic dipping to obtain the high-quality
titanium slag product with the content of TiO2 larger than 92%; and extracting vanadium from
pig iron, that is, performing vanadium extraction by converter blowing on the vanadium-containing
pig iron obtained by reducing and smelting to obtain the semi-steel and vanadium
slag. The method not only improves the utilization ratio of titanium, iron and vanadium but also obtains the high-
titanium slag product with the content of TiO2 larger than 92% so as to widen the application field of titanium.