Recovery of rubidium from brine sources utilizing diverse separation technologies

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

7 Scopus Citations
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Author(s)

  • Shubham Ketan Sharma
  • Dai Quyet Truong
  • Gayathri Naidu

Related Research Unit(s)

Detail(s)

Original languageEnglish
Article number116578
Journal / PublicationDesalination
Volume556
Online published31 Mar 2023
Publication statusPublished - 15 Jun 2023

Abstract

A rare alkali metal, rubidium (Rb) has significant economic value and emerging industrial applications including biomedical research, solar cells, atomic clocks, and electronics. Primarily Rb is recovered as an intermediate product during cesium or lithium extraction from pollucite or lepidolite, respectively. The rarity of Rb and its specific industrial usage have necessitated the development of new processes and the identification of alternative sources of Rb. As a result, alternative sources of Rb are becoming more appealing, primarily in the form of seawater brine and salt lakes. Researchers have utilized solvent extraction, precipitation, adsorption, and hybrid membrane-sorption technologies to recover Rb. A more in-depth evaluation of different separation technologies is imperative for achieving selective Rb recovery from complex brines. Hence, this assiduous review focuses on various Rb recovery technologies from brine. A specific emphasis is placed on Rb recovery by ion exchange-adsorption process in view of its efficiency, selectivity, and cost-effectiveness. Efforts to enhance adsorption are also discussed, including metal-organic framework grafting and encapsulation. This review will provide in-depth strategies for developing efficient and sustainable pure Rb recovery technologies having maximum adsorption capacity with improved kinetics, re-usability, and easier re-generation of the spent adsorbent from alternative brine sources. © 2023 Elsevier B.V.

Research Area(s)

  • Adsorption, Brine, Cost economic, Nanomaterials, Rubidium recovery, Salt lake, Seawater, Selective mechanism

Citation Format(s)

Recovery of rubidium from brine sources utilizing diverse separation technologies. / Sharma, Shubham Ketan; Truong, Dai Quyet; Guo, Jiaxin et al.
In: Desalination, Vol. 556, 116578, 15.06.2023.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review