有色金属科学与工程2024，Vol.15Issue(6)：781-791,11.DOI:10.13264/j.cnki.ysjskx.2024.06.001
从提锂废液中提取Rb、Cs及其动力学基础研究
Basic study on the extraction and its kinetics of Rb and Cs from waste solution obtained by lithium recovery
摘要
Abstract
Rb and Cs were simultaneously extracted from a waste solution resulting from the recovery of lithium by the t-BAMBP and liquid paraffin system,and the extraction kinetics were analyzed.The effect of waste solution alkalinity,temperature,phase ratio and other factors on extraction rate was studied.Under the conditions of c(OH-)of 0.4 mol/L,t-BAMBP volume fraction of 35%,phase ratio(VO/VA)of 1.2,extraction temperature of 25℃,extraction time of 2 min,and oscillation speed of 180 r/min,extraction rates of Rb+and Cs+reached 68.22%and 97.57%,respectively.Under the same condition,the extraction rates of Rb+and Cs+reached 96.06%and 99.96%using a three-stage countercurrent extraction.The loaded organic phase after two-stage scrubbing and two-stage stripping,the results showed that the majority of Li+,Na+and K+were removed in the scrubbing stage,while Rb+kept a lower scrubbing rate and Cs+was not scrubbed.99.15%of Rb+and 99.98%of Cs+were effectively stripped.Extraction kinetic analysis of Rb showed that the apparent activation energy of Rb+extraction was-11.48 kJ/mol,with the conclusion that mass transfer was controlled by diffusion and chemical reaction mixing.关键词
t-BAMBP/废液/铷/铯/液体石蜡Key words
t-BAMBP/waste solution/rubidium/cesium/liquid paraffin分类
矿业与冶金引用本文复制引用
满家汀,汪金良..从提锂废液中提取Rb、Cs及其动力学基础研究[J].有色金属科学与工程,2024,15(6):781-791,11.基金项目
江西省主要学科学术和技术带头人培养计划项目(20213BCJ22003) （20213BCJ22003）
