Selective Scandium Elution from DEHPA-Impregnated Ion-Exchange Resin After Metal Loading from Acidic Chloride Solutions.

This paper investigates the elution behavior of scandium from DEHPA (Di-(2-ethylhexyl) phosphoric acid)-impregnated resins that proceed with metal loading from acidic chloride solutions. DEHPA resins stem from their recognized selectivity for Sc extraction from acidic solutions. This study focuses on the elution process after ion-exchange extraction and examines various elution systems to achieve selective Sc recovery.