Study on the 4-ethyl-2(α-methyl benzyl) phenol Extraction-Separation Between Rubidium and PotassiumZheng-gen Huang, Lian-ying An, He-yin Yi and Tao WangE3S Web Conf., 245 (2021) 03069DOI: https://doi.org/10.1051/e3sconf/202124503069