Efficient flotation separation of talc and molybdenite via a green depressant Gellan Gum: mechanism insight - Ting Bao; Tingyu Zhou; Wenjing Chen; Mengyao Qi; Weijun Peng; Wei Wang; Yijun Cao; Bingqiao Yang; Kholov Kholmahmad Isroilovich; Safarov Sayfidin Shahobidinovich (Minerals Engineering, 2026)