#6456. Prediction of Flooding in a Pulsed Packed Column for Continuous Pertraction of Dysprosium by an Emulsion Liquid Membrane

November 2026publication date
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Journal’s subject area:
Industrial and Manufacturing Engineering;
Chemical Engineering (all);
Energy Engineering and Power Technology;
Chemistry (all);
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Abstract:
For the first time, Dysprosium was extracted by the novel method of emulsion liquid membrane in a pulsed packed column in a continuous process. Emulsion liquid membrane (ELM) was comprised of D2EHPA (di-2-ethylhexylphosphoric acid) as carrier and Span 80 (Polysorbate 80) as the surfactant in kerosene as the diluent and nitric acid as internal phase. In this work, the packed column was characterized from a hydrodynamic point of view including flooding condition and holdup at flooding points. Operational parameters affecting the flooding points, such as pulsation intensity and flow rate of continuous and dispersed phases have been studied.
Keywords:
Dysprosium; ELM; Flooding; Holdup; Pertraction; Pulsed Packed Column

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