The invention discloses a
vanadium-
titanium magnetite ore
coal-based reduction process. The adopted production process includes the steps that
vanadium-
titanium magnetite concentrate, high- volatile
coal, a binder and a focusing agent are subjected to batching, blending and
pelletizing according to the ratio being 100:(38-40):(1-3):(1-2); in the process of conducting heating and temperature rise on dried
pellets in a rotary
hearth furnace, reduction is conducted on
vanadium-
titanium magnetite ore through H2 generated by
coal sufficient
pyrolysis and H2 generated by carbon gasification reactionwith H2O as a gasification agent, the fire box temperature is controlled at 1250 DEG C to 1300 DEG C, the
calcination time is 50-55 min, the vanadium-titanium magnetite ore can be sufficiently reduced, and after reduction materials are subjected to
dry grinding dry separation and electric furnace
smelting separation, semi-steel, vanadium-titanium-rich
tailings and vanadium-titanium-rich
slag canbe obtained. The vanadium-titanium magnetite ore coal-based reduction process has the advantages that vanadium-titanium magnetite ore reduction is sufficient, the product metallization ratio is high,the production
energy consumption is low, the single-furnace production capacity is high and essence emission reduction is achieved; and after the vanadium-titanium-rich
tailings and the vanadium-titanium-rich
slag are subjected to acid leaching, iron, vanadium, titanium and other valuable elements in the vanadium-titanium magnetite ore can be recycled.