Purification of silica from tin tailings through solid-state method

Abstract

Indonesia is one of the largest tin producers in the world. The by-products of processing tin ore in the form of tailings are not used properly. Based on several studies, tin tailings have high levels of silica. In this paper, a silica purification study from tin tailings is proposed using a solid-state method at different pH. The purity of silica in this paper is determined by XRF and XRD analysis. This research is expected to increase the economic value of tin tailings, which can be utilized in various applications.

Synthesis and characterization of Fe3O4/SiO2/Alginate photocatalyst from tin tailings for batik cual waste degradation

“…The result is consistent with the study of Evi et al [2], which found a significant quantity of silica in tin tailing sand. The leaching agent used in this study, nitric acid, has significant oxidizing characteristics and may oxidize Fe 2+ to Fe 3+ and other metal impurities.…”

“…The leaching results were filtered, and the residue was washed using distilled water. After that, it was dried at 110°C to obtain SiO2 powder which was then characterized using XRD and XRF [2]…”

“…Several researchers have previously dealt with tin tailings waste by utilizing tin tailings as a geopolymer, cathode material precursor, pozzolans and supplementary cementing material by such variations of chemical and physical processes [1]. Evi et al [2] reported that tin tailings sand could produce silica (SiO2) of 90.53%.…”