Pan Sun, Kun Huang*, Xiaoqin Wang, Na Sui, Jieyuan Lin, Wenjuan Cao, Huizhou Liu*. Three-liquid-phase extraction and separation of V(V) and Cr(VI) from acidic leach solutions of high-chromium vanadium-titanium magnetite. Chinese Journal of Chemical Engineering. 2018, 26(7): 1451-1457.