A DROPLET-BASED MICROFLUIDIC SOLVENT MICROEXTRACTION SYSTEM FOR THE DETERMINATION OF LANTHANIDE AND ACTINIDE LIQUID-LIQUID EXTRACTION KINETICS

摘要

In this presentation we will describe recent work [1] on a method to obtain liquid-liquid extraction mass transfer coefficients using droplet-based microfluidics. We demonstrated its utility by measuring, for the first time, the mass transfer coefficients of the full series of stable Lanthanides and Yttrium under TALSPEAK conditions, a liquid-liquid extraction system relevant to nuclear waste recycling. The microfluidic system combined the properties of a Lewis cell (constant interfacial area) and a highly stirred tank (rapid mixing capabilities), with the additional benefits of miniaturization, allowing safe experimentation on the radioactive species of interest.