Novel pyrite depressant at low alkalinity: Selective adsorption mechanism and its application in separation of galena from high-sulfur lead ore - Chao Lv; Haiyun Xie; Saiqiong Kan; Yiqiang Liang; Taiguo Jiang; Zehang Guo; Yongbin Dong; Sheng Jian; Dianwen Liu (Minerals Engineering, 2026)