Ion exchange of lanthanum chloride and lewatit monoplus S 108 H resin

Zulkifli, Norazihan and Shoparwe, Noor Fazliani and Yusoff, Abdul Hafidz and Abdullah, Ahmad Zuhairi and Ahmad, Mohammad Norazmi (2025) Ion exchange of lanthanum chloride and lewatit monoplus S 108 H resin. Malaysian Journal of Bioengineering and Technology, 2 (3). pp. 115-128. E-ISSN 3036-017X

PDF Download (476kB)

Abstract

Rare Earth Elements (REEs) are indispensable for numerous advanced technologies; however, their supply chain faces significant challenges due to geopolitical factors and the environmental impact of conventional mining methods. This study investigates the potential of ion exchange adsorption for the recovery and separation of REEs from a novel secondary source: carbonate precipitates derived from ionic clay leachates. Specifically, the performance of Lewatit MonoPlus S 108 H, a strong acid cation exchange resin, was evaluated through comprehensive batch adsorption experiments. The research encompassed kinetic and isotherm modelling. Kinetic studies revealed that the adsorption of lanthanum in chloride media at pH 2 followed the Pseudo-Second-Order model, indicating chemisorption as the rate-limiting step. Equilibrium data were best described by the Langmuir isotherm, with a maximum adsorption capacity (Qm) of 82.64 mg/g, suggesting monolayer adsorption on a homogeneous surface. The findings confirm the viability of Lewatit MonoPlus S 108 H for the selective recovery of rare earth elements from complex, secondary streams. This offers a sustainable pathway for the critical element supply.

Item Type:	Article (Journal)
Uncontrolled Keywords:	REE; Lewatit MonoPlus S 108 H; adsorption; kinetics; modelling; isotherm
Subjects:	Q Science > QD Chemistry
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Science Kulliyyah of Science > Department of Chemistry
Depositing User:	Dr Mohammad Norazmi Ahmad
Date Deposited:	18 Nov 2025 12:10
Last Modified:	18 Nov 2025 12:10
Queue Number:	2025-11-Q008
URI:	http://irep.iium.edu.my/id/eprint/124402

Actions (login required)

View Item