Abstract: A new technology of producing high titanium slag by reducing ilmenite rapidly at low temperature was developed. Solid state ilmenite could be reduced rapidly to iron at around 600℃ when ilmenite and the reductant were ground to around 10 μm, then the titanium slag and iron powder could be obtained by magnetic separation after cooling the reduced hot product. This technology has a series of advantage, such as low reduction temperature, low power consumption and friendly environment. An efficient ball mill was developed, which can grind ilmenite to 2~10 μm with power consumption less than 100 kWh/t ore and promise production rate of 5~10 t/h.