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Polyacrylonitrile-encapsulated amorphous zirconium phosphate composite adsorbent for Co, Nd and Dy separations
(Elsevier, 2018)
Recycled Nd and Dy from the end-of-life NdFeB permanent magnet is an important supplement for the increasing demand of rare-earth elements. Thus, there is an urgent need to develop an environmentally friendly recycling ...
Controlled partial neutralization of amphoteric ion exchange resin for improved metals separation
(Elsevier, 2013)
Controlled partial neutralization of an amphoteric aminomethylphosphonium functional ion exchange resin (Lewatit TP-260) was investigated. The particular goal of controlled neutralization was to replace H+ in the acidic ...
Recovery of indium from indium tin oxide by solvent extraction
(Elsevier, 2011)
Recovery of indium from LCD screen wastes, which contain indium in the form of indium tin oxide (ITO) as the electrode material, is becoming economically and environmentally justified. Indium is a valuable metal and the ...
Liquid-liquid synthesis of oximes from carbonyl compounds: Formation at neutral conditions and degradation at acidic hydrometallurgical process conditions
(John Wiley & Sons, Inc., 2017)
BACKGROUND
In order to elucidate kinetics in the synthesis of oxime liquid–liquid extraction reagents, used as ligands in hydrometallurgical copper production, the oximation reactions of salicylaldehyde and 2′‐hydroxyacetophenone ...
Ion exchange purification of a silver nitrate electrolyte
(Elsevier, 2018-12-14)
A novel ion exchange process was studied to remove high concentration of Cu impurity from AgNO3 electrolyte was studied. A suitable ion exchange resin was screened using laboratory scale experiments with a synthetic nitrate ...
Modeling the phase equilibrium in liquid-liquid extraction of copper over a wide range of copper and hydroxyoxime extractant concentrations
(Elsevier, 2017)
The phase equilibrium in the loading and stripping stages of liquid–liquid extraction of copper with hydroxyoxime extractant in kerosene was studied over a wide range of Acorga M5640 extractant (5–25 vol%) and copper (1–45 ...
Selective recovery of germanium with N-methylglucamine functional resin from sulfate solutions
(Elsevier, 2013)
Growing demand of germanium and uncertainties in supply create a need for research into efficient separation methods. Ion exchange recovery of germanium from sulfate solutions was studied with equilibrium experiments, ...
Numerical simulation of counter-current liquid–liquid extraction for recovering Co, Ni and Li from lithium-ion battery leachates of varying composition
(Elsevier, 2019)
Fractionation of Li-ion battery waste leachates into high-purity Li, Ni, and Co streams in a liquid−liquid extraction circuit was studied using numerical simulations. A new mechanistic mathematical model explaining the ...
Ion exchange recovery of silver from concentrated base metal-chloride solutions
(Elsevier, 2015)
Ion exchange has not been extensively studied nor industrially used for recovering small amounts of silver from concentrated base metal-chloride solutions. A novel multistep process utilizing a weak anion exchanger with ...
Membrane Filtration Enhanced Hydrometallurgical Recovery Process of Indium from Waste LCD Panels
(Springer Nature, 2020-10-02)
Insufficient recycling of a continuously increasing amount of liquid crystal display (LCD) waste leads to the waste of potentially recyclable materials, especially rare and critical indium. Moreover, landfilling of LCD ...