[3]
Na Sui, Kun Huang, Han Zheng, Jieyuan Lin, Xiaoqin Wang, Chuanxu Xiao, and Hui-Zhou Liu. Three-Liquid-Phase Extraction and Separation of Rare Earths and Fe, Al, Si by a Novel Mixer-Settler-Mixer Three Chamber Integrated Extractor. Industrial & Engineering Chemistry Research, 2014, 53: 16033-16043..