Warta Geologi, Vol. 46, No. 3, December 2020, pp. 210–213

Study on beneficiation of silica sand by Wet
High-Intensity Magnetic Separators (WHIMS) and reverse flotation technique for
glass application: A case study from Sihanoukville, Cambodia

R. Sochea*, S. Somsak, A. Numprasanthai

Department of Mining and Petroleum Engineering, Faculty of
Engineering, Chulalongkorn University, Phayathai Rd., Pathumwan, Bangkok 10330,
Thailand

* Corresponding author email address: ros.sochea@gmail.com

Abstract:
White silica sand samples were collected from Steuong Hav district area.
The samples were mixed and quartered to obtain a representative sample for
physical and chemical characterization. Silica (SiO2) and iron oxide (Fe2O3)
content were measured by X-ray fluorescence (XRF) analysis. The results showed
silica and iron oxide content at 94.83 wt.% and 0.189 wt.% representatively. In
this study, a shaking table, Wet High-Intensity Magnetic Separators (WHIMS),
and reverse flotation technique was undertaken to remove mainly iron oxide. The
collectors amine (named AOA) and petroleum supinate (named NANZA), pine oil as
frother, and H2SO4 as depressant were used to optimize the froth performance.
The iron oxide content was removed from 0.189wt.% to 0.062 wt.% and the silica
content was upgraded from 94.83 wt.% to 98.6 wt.% after the process.

Keywords:
WHIMS, reverse flotation technique

DOI : https://doi.org/10.7186/wg463202007

ISSN
0126–5539; e-ISSN 2682-7549