The Kinetics of Droplet Sedimentation in Liquid‐Liquid Extraction 

Pornprapa Bol, Georg Rudelstorfer*, Annika Grafschafter, Matthäus Siebenhofer

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

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.

Original languageEnglish
Pages (from-to)260-272
Number of pages13
JournalChemie-Ingenieur-Technik
Volume93
Issue number1-2
Early online date30 Nov 2020
Publication statusPublished - 1 Jan 2021

Keywords

  • Droplet swarm sedimentation
  • Liquid-liquid extraction
  • Phase separation

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Chemistry(all)
  • Industrial and Manufacturing Engineering

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