Titanium extraction

A process for producing a titanium product, which process includes:

• providing
• a titanium-containing material, said titanium-containing material being selected from the group consisting essentially of ilmenite, perovskite, spene, geikelite, pseudorutile, leucoxene, pseudobrookite, other iron titanate phases, titanium-containing slags, silicotitanates, aluminotitanates derived from at least one of the alkaline earths, iron, rare earths, manganese, copper, aluminum, and mixtures thereof;
• and
• a leaching composition including
• a source of ammonia or ammonium ions;
• a source of carbon dioxide or carbonate ions;
• and
• water;
• and
• contacting the titanium-containing material with the leaching composition to form an aqueous slurry for a time sufficient to form a soluble titanium leach product;
• and
• isolating a leaching solution containing the titanium leach product so formed.