Extraction of rare earth metals by organometallic complexation using PC88A

Kumari, Archana and Panda, Rekha and Jha, Manis K and Pathak, D D (2018) Extraction of rare earth metals by organometallic complexation using PC88A. Comptes Rendus Chimie, 21(11) (IF-2.176). pp. 1029-1034.

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Lesser availability, curtailed import/export, increasing demand, and environmental issues related to rare earth metals (REMs) have compelled researchers to investigate for their feasible recovery. Therefore, a solvent extraction process has been developed and validated to recover REMs from monazite leach liquor. At equilibrium pH ∼3.5, 99.4% La, 99.95% Ce, 99.97% Nd, and 99.05% Pr were extracted in 5 min using 5% PC88A at an O/A ratio of 1:1. High separation factors of 60.85, 72.17, and 98.33 were observed for Ce/La, Nd/La, and Pr/La, respectively, at equilibrium pH 2. Stripping of REMs loaded PC88A using 10% H2SO4 resulted in a pure solution of mixed REMs.

Item Type:Article
Official URL/DOI:https://doi.org/10.1016/j.crci.2018.09.005
Uncontrolled Keywords:Monazite; PC88A; Rare earth metals (REMs); Solvent extraction; Separation factor
Divisions:Material Science and Technology
ID Code:7897
Deposited By:Sahu A K
Deposited On:18 Sep 2019 18:03
Last Modified:18 Sep 2019 18:03
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