文献类型：期刊文献

英文题名：Hydrodynamic investigation on a ceramic hybrid pulsed column for the extraction recovery of lithium from salt lake brine

作者：Sun, Qing[1,2,3];Chen, Hang[1,2,3];Yu, Jianguo[1,2,3]

机构：[1]East China Univ Sci & Technol, Natl Engn Res Ctr Integrated Utilizat Salt Lake R, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Minist Educ, Engn Res Ctr Resource Proc Engn, Shanghai 200237, Peoples R China;[3]East China Univ Sci & Technol, Joint Int Lab Potassium & Lithium Strateg Resourc, Shanghai 200237, Peoples R China

年份：2021

卷号：169

外文期刊名：CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION

收录：;EI(收录号：20213510832261);WOS:【SCI-EXPANDED(收录号:WOS:000696864800007)】；

基金：We would like to acknowledge the financial support from the Na-tional Natural Science Foundation of China 22078101, "Chen Guang" project supported by Shanghai Municipal Education Commission and Shanghai Education Development Foundation (19CG34) and the China Postdoctoral Science Foundation (2018T110357 and 2017M621387) . Meanwhile, we gratefully acknowledge the kindly guidance and assis-tance from Dr. Heng Yi and Prof. Weiyang Fei.

语种：英文

外文关键词：Solvent extraction; ceramic hybrid pulsed column; hydrodynamics; lithium recovery

摘要：In this study, as an alternative for the traditional stage equipment in lithium extraction industry, the two-phase hydrodynamics of a ceramic hybrid pulsed column was investigated with the high-viscosity actual lithium extraction system. The results indicated that the pulsation intensity was the critical operating parameters, which had a decreasing effect on the Sauter mean diameter. This led to the generation of different operating regimes directly, namely, the mixer-settler regime, dispersion regime and emulsion regime. The dispersed phase holdup had a decreasing trend with the pulsation intensity in mixer-settler regime, while the variation was increasing in the dispersion regime. Meanwhile, the dispersion regime and emulsion regime had narrower droplet size distribution, smaller Sauter mean diameter and lower characteristic velocity. Although the two-phase superficial velocities also had effects on the column hydrodynamics, the influence was not crucial compared to that of pulsation intensity. Empirical correlations were determined to be reasonable for calculating the holdup and droplet diameter with the averaged deviations of 13.0% and 7.0%, respectively. However, the regressed parameters reminded that the effects of the two-phase physical properties can't be ignored on the column hydrodynamics and they should be taken into account adequately for the design of extraction columns.