Microwave-assisted roasting time on Ilmenite Bangka Belitung extraction using hydrometallurgical method

Ikbalul Mutakin, Risa Suryana, Eka Lutfi Septiani, Osi Arutanti, Hendri Widiyandari

Abstract

Titanium Dioxide (TiO2) was extracted from Bangka Ilmenite through a hydrometallurgical process employing the microwave-assisted method using a 20% HCl solution. The highest crystallinity percentage in XRD result, reaching 75%, was achieved after a roasting duration of 25 minutes, with a corresponding crystallite size of  35.57 nm at the TiO2-Anatase phase's peak intensity of 25.24°. Analysis of the extracted ilmenite revealed alterations in its compound composition, notably an increase in TiO2 content. The most substantial increase in TiO2 content, rising to 69.7% from 33.76%, was observed after 25 minutes of roasting. UV–Vis spectroscopy revealed an energy band gap of 2.329 eV.

Keywords

TiO2; Ilmenite Bangka; hydrometallurgy; roasting

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DOI: https://doi.org/10.20961/jphystheor-appl.v8i1.90259

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