Recovery of rare earth elements from acidic solutions using macroporous ion exchangers. Issue 13 (2nd September 2019)

• Record Type: Journal Article
• Authors: Kołodyńska, Dorota; Hubicki, Zbigniew; Fila, Dominika
• Is Part Of: Separation science and technology. Volume 54:Issue 13(2019)
• Page Start: 2059
• Page End: 2076
• Publication Date: 2019-09-02
• Subjects: Rare earth elements -- recovery -- amberlite 200C Na -- amberlite 200C H -- dowex M 4195; Separation (Technology) -- Periodicals; 660.284205
• DOI: 10.1080/01496395.2019.1604753
• Languages: English
• ISSNs: 0149-6395

Abstract

ABSTRACT: Adsorption effectiveness of Amberlite 200C Na, Amberlite 200C H and Dowex M 4195 towards La(III), Ce(III) and Nd(III) was carried out. The effects of phase contact time, initial metal concentration and temperature were studied to evaluate the kinetic, equilibrium and thermodynamic parameters for the sorption process. The structure and physicochemical properties of the ion exchangers were characterized. For Dowex M 4195, the Freundlich equation, and for Amberlite 200C Na as well as Amberlite 200C H, both the Langmuir and Freundlich models proved to be suitable. The monitored thermodynamic parameters indicated that the sorption was an exothermic, favourable and spontaneous process.