1991•Journal of Guangdong Non-ferrous MetalsRequires access

SEPARATION AND DETERMINATION OF SAMARIUM, EUROPIUM, GADOLINIUM AND TERBIUM IN Sm-Eu-Gd CONCENTRATE BY EXTRACTION-CHROMATOGRAPHY

Zhixiang Chen

Abstract

The conditions for quantitative separation of Nd-Sm-Eu-Gd-Tb--Dy have been studied by using extraction-chromatographic technique in P_(507)-HCl--(NH_4)_2SO_4 system. The experiments show that the elements can be separated quantitatively by Using 0.42mol/L HCl-0.5mol/L (NH_4)_2SO_4 as eluant. This method can be applied to determine Sm, Eu, Gd and Tb in the Sm-Eu-Gd concentrate.

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Key concepts: Gadolinium, Samarium, Europium, Terbium, Extraction (chemistry), Chemistry, Elution, Lanthanide