The role of curvature effects in liquid–liquid extraction: assessing organic phase mesoscopic properties from MD simulations

Soft Matter ◽  
2017 ◽  
Vol 13 (33) ◽  
pp. 5518-5526 ◽  
Author(s):  
Magali Duvail ◽  
Steven van Damme ◽  
Philippe Guilbaud ◽  
Yushu Chen ◽  
Thomas Zemb ◽  
...  
Keyword(s):  
Rare Earth ◽  
Organic Phase ◽  
Reverse Micelles ◽  
Rare Earth Metals ◽  
Md Simulations ◽  
Liquid Extraction ◽  
Molecular Approach ◽  
Curvature Effects ◽  
Liquid Liquid Extraction

A molecular approach for investigating the role of chain configurations of reverse micelles containing rare-earth metals involved in liquid–liquid extraction.

scholarly journals The recovery of rare earth metals from WEEE leaching solution via liquid-liquid extraction

2018 ◽  
Vol 20 (4) ◽  
pp. 719-724 ◽  
Keyword(s):  
Rare Earth ◽  
Oxalic Acid ◽  
Organic Phase ◽  
Electronic Waste ◽  
Rare Earth Metals ◽  
Extraction Process ◽  
Liquid Extraction ◽  
The Sustainable Development ◽  
Liquid Liquid Extraction ◽  
Leaching Solution

<p>The recovery of rare earth metals (REMs) from end-of-life products, such as Waste Electrical and Electronic Equipment (WEEE), is drawing great attention as an attractive strategy for promoting the sustainable development. The hydrometallurgical technique of solvent extraction has been reported to be one of the most interesting method to recover REMs. However, when applied to WEEE, this process is challenged by the heterogeneous composition of electronic waste, completely different from other solid matrices, and it still has much rooms of improvements. This study investigated the extraction, stripping and recovery of REMs from a WEEE leaching solution using Versatic 10 as carrier in the organic phase and oxalic acid as stripping agent. A factorial design was carried out to evaluate the simultaneous effects of factors as the feed phase pH and the concentrations of both extractant and organic phase modifier in the extraction process. Cerium, lanthanum and yttrium were extracted at high percentages using 200 mM of Versatic 10, loaded by 100 mM of TBP in kerosene at pH 7. Moreover, 750 mM of oxalic acid successfully stripped and recovered 7.63 and 13.82 mg/kg of lanthanum and yttrium, respectively.</p>

Interfacial structure in the liquid–liquid extraction of rare earth elements by phosphoric acid ligands: a molecular dynamics study

2020 ◽  
Vol 22 (7) ◽  
pp. 4177-4192 ◽  
Author(s):  
Balarama Sridhar Dwadasi ◽  
Sriram Goverapet Srinivasan ◽  
Beena Rai
Keyword(s):  
Molecular Dynamics ◽  
Rare Earth ◽  
Phosphoric Acid ◽  
Rare Earth Elements ◽  
Md Simulations ◽  
Liquid Extraction ◽  
Interfacial Structure ◽  
Sequence Of Events ◽  
Physical Heterogeneity ◽  
Liquid Liquid Extraction

MD simulations reveal the chemical and physical heterogeneity at the liquid–liquid interface, nature of complexes formed by phosphoric acid ligands with lanthanides, and the sequence of events in the extraction of these ions.

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