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The Kinetics of Droplet Sedimentation in Liquid‐Liquid Extraction
Author(s) -
Bol Pornprapa,
Rudelstorfer Georg,
Grafschafter Annika,
Siebenhofer Matthäus
Publication year - 2020
Publication title -
chemie ingenieur technik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.365
H-Index - 36
eISSN - 1522-2640
pISSN - 0009-286X
DOI - 10.1002/cite.202000126
Subject(s) - sedimentation , mass transfer , liquid liquid , extraction (chemistry) , kinetics , kinetic energy , viscosity , chromatography , liquid phase , chemistry , electrolyte , process (computing) , materials science , process engineering , thermodynamics , chemical engineering , engineering , computer science , physics , geology , paleontology , electrode , quantum mechanics , sediment , operating system
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.