Patent ID: 8876938

Claim:
A process for producing sponge titanium, wherein equipment for producing sponge titanium comprises: a reactor and a reactor cover with a stirring device, wherein a sealing ring is arranged between the reactor cover and the reactor, one side of the reactor cover is provided with a lifting device for controlling the lifting of the reactor cover, a sealed resistance furnace is arranged above the reactor cover, a valve is arranged below the resistance furnace, and a vacuum-pumping pipe and an inflation pipe are arranged above the reactor cover; a method comprises the following steps: step A: placing aluminum into the sealed resistance furnace, vacuum pumping, introducing inert gas, heating to molten aluminum; step B: opening the reactor cover, adding potassium fluotitanate to a reactor, leakage detecting after closing the reactor cover, raising a temperature to 150° C., vacuum pumping, and continuously heating to 250° C.; step C: introducing inert gas into the reactor, continuously raising the temperature to 750 degrees Celsius, stirring uniformly; step D: opening a valve to adjust a stirring speed, adding molten aluminum drops, and controlling a reaction temperature to 750° C. to 850° C.; and step E: opening the reactor cover, removing the stirring device, eliminating an upper layer of KAlF 4 to obtain sponge titanium.