Process for obtaining titanium tetrachloride, chlorine and iron oxide from ilmenite

A process for producing titanium tetrachloride as well as iron oxide from iron-containing titanium ore comprising the steps of:

• chlorinating the iron-containing titanium ore with chlorine or chlorine-containing gas,
• recovering titanium tetachloride vapor followed by cooling it to obtain titanium tetrachloride product,
• recovering iron chloride vapor followed by cooling it to obtain solid chloride,
• adding solid iron oxide to said solid iron chloride in an amount above 10 percent by weight based on the weight of the resulting mixture,
• charging the mixture of solid iron oxide and solid iron chloride into a fluidizing roasing furnace,
• blowing oxygen-containing gas into the fluidizing roasting furnace from its bottom to form a fluidized bed of said mixture and to effect the oxidizing roasting in the fluidized roasting furnace at a temperature of 600 to 1000 C,
• removing chlorine from the fluidizing roasting furnace adjacent the top thereof,
• extracting the overflow from the fluidized bed in said fluidizing roasting furnace,
• charging the extracted overflow into a secondary roasting furnace for additional oxidizing roasting and for purging chlorine present in interstices between the overflow particles, and
• removing iron oxide product from the secondary roasting furnace.