Experimental Investigation on the Purification of Natural Flake Graphite with Auxiliary Alkali-Acid Method. - Liu, Huan; Yin, Jinling; Zhao, Jing; Wen, Qing; Li, Jiaye; Wang, Zebin; Li, Ze; Lei, Yang; Wang, Guiling (JOM: The Journal of The Minerals, Metals & Materials Society (TMS), 2024)