A sulfate process for producing titania from titaniferous material is
disclosed. The process includes precipitating titanyl sulfate from leach
liquors containing acidic solutions of titanyl sulfate. The process is
characterised by: (a) multiple stage leaching to produce leach liquors
containing acidic solutions of titanyl sulfate; (b) using depleted leach
liquor from a titanyl sulfate precipitation reactor in the leach steps;
and (c) controlling acid concentration in the leach steps to avoid
premature hydrolysis and premature precipitation.