Project(20606008)supported by the National Natural Science Foundation of China;Project(11070210)supported by the Fundamental Research Funds for the Central Universities of China
The residues of salt lake brine from which potassium had been removed were used to extract Rb+ and Cs+ together with a sulphonated kerosene(SK) solution of 1.0 mol/L 4-tert-butyl-2-(α-methylbenzyl) phenol(t-BA...