1. Anderson CG. The metallurgy of antimony. Chem Erde-Geochem. 2012;72:3–8.
2. Sminčáková E, Raschman P. Leaching of stibnite by mixed Na2S and NaOH solutions. Acta Tech Corviniensis Bull Eng Fasc. 2012;1:35–9.
3. Dupont D, Arnout S, Jones PT, Binnemans K. Antimony recovery from end-of-life products and industrial process residues: a critical review. J Sustain Metall. 2016;2:79–103.
4. Karlsson TY. Studies on the recovery of secondary antimony compounds from waste. Ph.D. Thesis, Chalmers University of Technology, Göteborg, Sweden, 2017.
5. Chen TP. Process for oxidizing metal sulfides to elemental sulfur using activated carbon. U.S. Patent 1976; 3,930,969.