Abstract: A process for the production of titanium concentrates from anatase ores with high utilization of the iron contents of the raw ore involving the steps of calcining mechanically treated ore in the presence of an alkali metal carbonate followed by dilute leachings in both alkaline and acid media. No reducing agents are employed during calcination, avoiding the iron contents of the ore to be solubilized in the leaching steps. The final concentrate, which is rich in titanium and iron and has a low content of impurities, can be used as a raw material for the production of titanium slag.

Abstract: The present invention is related to a process for concentrating highly impure titanium ore, such as anatase, with the main purpose of obtaining a final concentrate having a chemical composition similar to that of ilmenite. The proposed process is based on the utilization as best as possible of the iron contents of the raw ore, in such a way that the final concentrate obtained can be used as an intermediate raw material for the production of titanium slag.