Patent ID: 6713038
Filing Date: 2004-03-30
Classification: A61K,A61Q,B01J,C01G,C01P,C08K,C22B

Abstract:
A process for obtaining TiO2 compounds from an ore, said process comprising:a. grinding an ore to form ground ore having particles of a size suitable to form an aqueous slurry, wherein said ore comprises at least 95% silica and titania, and either no iron or iron in an amount less than 0.5%; b. combining the ground ore, water and a separating agent so as to form an aqueous slurry of constituents; and c. separating the constituents of the aqueous slurry to isolate the TiO2 compounds, wherein during said process the titania is not subjected to a chemical conversion step and said TiO2 compounds comprise at least 50% TiO2.