The Kinetics of Droplet Sedimentation in Liquid-Liquid Extraction

被引:2
作者
Bol, Pornprapa [1 ]
Rudelstorfer, Georg [1 ]
Grafschafter, Annika [1 ]
Siebenhofer, Matthaus [1 ]
机构
[1] Graz Univ Technol, Inst Chem Engn & Environm Technol, Inffeldgasse 25-C, A-8010 Graz, Austria
关键词
Droplet swarm sedimentation; Liquid‐ liquid extraction; Phase separation; PARTIALLY-MOBILE FILMS; COALESCENCE; DRAINAGE; RUPTURE; ELECTROLYTES; PREDICTION; SYSTEMS; MODEL;
D O I
10.1002/cite.202000126
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
Liquid-liquid extraction is a major separation process in chemical industry. Beside appropriate design of mass transfer equipment, successful design of phase separation equipment is an important issue. Therefore, the separation of liquid-liquid dispersions was investigated and modeled with kinetic approaches to gain information for settler design. A modified first-order sedimentation rate model, a first-order consecutive step rate model, and a mixed-order rate model were applied and compared to the experimental data. The advantage of kinetic modeling of the rate of sedimentation, specifically addressing the impact of viscosity and electrolyte concentration, was successfully demonstrated.
引用
收藏
页码:260 / 272
页数:13
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