Adsorption Studies of Europium on Manganese Dioxide from Aqueous Sulphuric Acid and 1-Propanol Mixtures

Abstract

The adsorption of europium on to manganese dioxide from binary mixtures of 1-propanol with aqueous sulphuric acid has been studied as a function of the concentration of the aqueous and organic component. The composition of those mixtures from which maximum and minimum adsorption could be obtained has been determined. The influence of cations and anions has also been studied. Chromate, fluoride, citrate, EDTA, CrIII, AlIII, FeIII, PbII and AgI reduce adsorption appreciably in these mixtures. The adsorption of several other metal ions has also been measured under specific conditions to determine the selectivity of manganese dioxide. Europium and some other metal ions can be separated from elements such as mercury, zinc, etc. which show very low adsorption on manganese dioxide from these binary mixtures.