UPGRADING OF TITANIFEROUS MATERIAL

摘要

A method of upgrading a titaniferous material includes nitriding and reducing a titaniferous material which includes TiO2 and Fe oxides in the presence of nitrogen and carbon to convert the TiO2 to TiN and to reduce most of the Fe oxides to Fe. The Fe is oxidised in preference to the TiN to form Fe2+ ions, whereafter the Fe2+ ions are removed to produce an upgraded low-Fe TiN bearing material.