Abstract

• This research work concerns the synthesis and characterisation of titanium dioxide nanoparticles (TiO2 NPs) from heavy mineral sand (HMS). In this research work HMS was collected from the Moemeik Myitsone area and analysed for elemental and mineralogical compositions. A physical beneficiation process (gravity separation and magnetic separation) was performed for the enrichment of ilmenite from collected HMS and characterised by XRD, ED-XRF, and SEM analyses. After the physical beneficiation process, a chemical treatment process (alkali digestion known as) was carried out with the variation of operating parameters for the synthesis of titanium dioxide nanoparticles (TiO2 NPs) from ilmenite concentrate. Alkali digestion products and synthesised TiO2 NPs were also characterised by XRD, ED-XRF, and SEM analyses. The optimal operating parameters for alkali digestion and iron removal efficiencies for the synthesis of TiO2 NPs from HMS have been examined in accordance with the related experimental results. Ti is enriched to 30.18% in the eleminte countate. 22.33 % of Iron in the elemite is also removed by this frocess.