The interphase distribution of light REE Ce(III) and La(III) in system based on PEG-1500 – NaNO3 – H2O with the quaternary ammonium base addition

Abstract The problem of e-waste processing and recovery valuable metals from such waste for the second use is attracting more scientists’ attention. Liquid extraction as one hydrometallurgy steps a traditional method metal recovery. However, application solvent not meet green chemistry principles due to organic solvents. Aqueous two-phase systems based on water-soluble polymers are promising alternative hazardous In this work dependencies Ce(III) La(III) distribution coefficients process time initial quaternary ammonium base concentration have been achieved. Also, isotherms it has shown that concentrations highly affects studied metals. possibility aqueous system salt light REE (Ce(III) La(III)) water solution shown.