Preparation of P507-containing monodisperse magneto-permeable polystyrene swelling microspheres for extraction of low-concentration scandium from simulated red mud liquor - Jie Wang; Jinghan Ren; Rui Feng; Chenxi Li; Chenxin Shi; Mingqi Guo; Tianlei Yang; Yueping Guan (Journal of Water Process Engineering, 2026)