Ilmenite - Wikipedia
Ilmenite is the titanium-iron oxide mineral with the idealized formula FeTiO 3. It is a weakly magnetic black or steel-gray solid. From the commercial perspective, ilmenite is the most important ore of titanium. Ilmenite is the main source of titanium dioxide, which is used in paints, fabrics, plastics, paper, sunscreen, food and cosmetics.
Patent US - Production of rutile and iron from ilmenite
It has now been found, according to the process of the invention, that ilmenite may be treated to yield a high-grade rutile ore and iron by means of a process comprising selective reductionof iron oxide in the ilmenite to metallic iron, followed by treatment with CO, in the presence of ammonium polysulfide solution as catalyst, to form the volatile .