Muhammad Nurdin
Universitas Halu Oleo, Indonesia
Title: TiO2 mineral from Ilmenite : Development of extraction method and its characterization
Biography
Biography: Muhammad Nurdin
Abstract
Study on mineral characterization and TiO2 extraction by leaching method using H2SO4 on iron sand of Tapunggaya–Southeast Sulawesi has been conducted. Results of initial testing using X-Ray Diffraction (XRD) and X-Ray Flouresence (XRF) on sample of Tapunggaya iron sand showed that there were 4 major compounds namely Fe2O3, TiO2, MgO, and SiO2 in the mineral. TiO2 extraction was conducted using sulphate method, by reacting milled iron sand with sulfuric acid at high temperatures (>110°C) for ± 30 minutes. Titanium extract was then heated at a temperature of 90°C to precipitate TiO2. The precipitate was obtained by centrifugation at 10,000 rpm for 10 minutes to solidify the precipitate and separate from the liquid phase of H2O and the remaining sulfuric acid. Subsequently, the extract was calcined for ±7 hours at temperature of 500oC and 1000oC to obtain TiO2 anatase and rutile then purified with HCl and HNO3. XRD and XRF characterization results showed the obtained TiO2 extract containing anatase of 8.97% (70.3°; 1.337 Å) and rutile of 19.78% (54.2°; 1.699 Å).
