<span>Separation of titanium dioxide (TiO</span><sub>2</sub>) from ilmenite Bangka has been done byleaching processusing HCl. Before the leaching process, ilmenite was roastedat 900<sup>o</sup>C for pre-oxidation (preliminary - oxidation). Leaching process carried out by variation of HCl concentration and Fe<sup>0 </sup>reducing agents. While the re-deposition of dissolved Ti<sup>4+ </sup>ion achieved by hydrolysis - condensation using 2-propanol-H<sub>2</sub>O solvents. Leaching the pre-oxidazed ilmenite shows the phase change of pseudobrokite (Fe<sub>2</sub>TiO<sub>5</sub>) into hematite (Fe<sub>2</sub>O<sub>3</sub>) and synthetic rutile (TiO<sub>2</sub>). Formation of the synthetic rutile was characterized by the loss of intensity of Fe<sub>2</sub>TiO<sub>5</sub><span class="apple-converted-space"> at 26.65º and the increasing intensity of rutile TiO</span><sub>2</sub><span class="apple-converted-space"> at 27.49º.The dissolution rate of both titanium and iron was found to be increased, generally, by increasing acid concentration in case of HCl as well as by increasing ilmenite: Fe</span><sup>0</sup><span class="apple-converted-space"> ratio. Precipitation of the dissolved titania with 2-propanol -H</span><sub>2</sub>Oof 8:2(v /v) produced anatase TiO<sub>2 </sub>due to the hydrolysis and condensation of Ti-tetra isopropoxide complexes.
<span>Separation of titanium dioxide (TiO</span><sub>2</sub>) from ilmenite Bangka has been done byleaching processusing HCl. Before the leaching process, ilmenite was roastedat 900<sup>o</sup>C for pre-oxidation (preliminary - oxidation). Leaching process carried out by variation of HCl concentration and Fe<sup>0 </sup>reducing agents. While the re-deposition of dissolved Ti<sup>4+ </sup>ion achieved by hydrolysis - condensation using 2-propanol-H<sub>2</sub>O solvents. Leaching the pre-oxidazed ilmenite shows the phase change of pseudobrokite (Fe<sub>2</sub>TiO<sub>5</sub>) into hematite (Fe<sub>2</sub>O<sub>3</sub>) and synthetic rutile (TiO<sub>2</sub>). Formation of the synthetic rutile was characterized by the loss of intensity of Fe<sub>2</sub>TiO<sub>5</sub><span class="apple-converted-space"> at 26.65º and the increasing intensity of rutile TiO</span><sub>2</sub><span class="apple-converted-space"> at 27.49º.The dissolution rate of both titanium and iron was found to be increased, generally, by increasing acid concentration in case of HCl as well as by increasing ilmenite: Fe</span><sup>0</sup><span class="apple-converted-space"> ratio. Precipitation of the dissolved titania with 2-propanol -H</span><sub>2</sub>Oof 8:2(v /v) produced anatase TiO<sub>2 </sub>due to the hydrolysis and condensation of Ti-tetra isopropoxide complexes.
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