Optimization H 2 so 4 Concentration on the Leaching Process of Extracting Titanium from Zircon Sand

Zircon sand was obtained from Kalimantan Province, Indonesia. Zircon sand contain ilmenite compound that it can be processed to extract TiO2. To extract TiO2 can be used Becher Process which is combined Pirometallurgy and Hydrometallurgy. Crystal Ilmenite separated from another purities through smelting process above 1200 o C for 6 hours. Ilmenite is reduced through aeration process with oxygen for 6 hours to enable the rust which is signed brownish colour, it is formed Fe2O3. The leaching residue was using H2SO4 solution with concentration variation of 6M, 8M, 10M, and 12M. Titanium bonded SO4 - which is formed TiSO4. Result powder of leaching was calcined by using arc furnace at 900 o C with the result that SO4 evaporated from the powder and formed TiO2 powder. Based on the XRD pattern showed that the recovery rutile TiO2 obtained in concentration 10 M H2SO4 solution. XRD pattern showed high purities of ZrSiO4. In this report did not include a quantitative