pumping introducing argon heating to molten aluminum step b opening the reactor cover adding 240 g of potassium fluotitanate to the reactor leakage detecting after closing the reactor cover slowly raising the temperature to 150 u00b0 c vacuum pumping and then heating to 250 u00b0 c step c introducing argon into the reactor continuously raising the temperature to 750 u00b0 c stirring uniformly step d opening a valve to adjust the speed adding molten aluminum drops and controlling the reaction temperature to 750 u00b0 c to 850 u00b0 c step e opening the reactor cover removing the stirring device eliminating the upper layer of kalf 4 to obtain 48 29 g of sponge titanium in which the content of titanium is 98 6 and the reduction rate is 99 2 step b opening the reactor cover adding 240 g of potassium fluotitanate to the reactor leakage detecting after closing the reactor cover slowly raising the temperature to 150 u00b0 c vacuum pumping and then heating to 250 u00b0 c step c introducing argon into the reactor continuously raising the temperature to 750 u00b0 c step d opening a valve to adjust the speed adding molten aluminum drops and controlling the reaction temperature to 750 u00b0 c to 850 u00b0 c step e opening the reactor cover removing the stirring device eliminating the upper layers of kf and mgf 2 to obtain 47 56 g of sponge titanium in which the content of titanium is 99 2 and the reduction rate is 98 3 step b opening the reactor cover adding 240 g of potassium fluotitanate to the reactor leakage detecting after closing the reactor cover slowly raising the temperature to 150 u00b0 c vacuum pumping and then heating to 250 u00b0 c step c introducing argon.