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Recovering rare earth elements from phosphogypsum using a resin-in-leach process: Selection of resin, leaching agent, and eluent
(Elsevier, 2019-08-10)
Phosphogypsum (PG) is an attractive secondary raw material for rare earth elements (REEs) because it is abundant and contains significant amounts of REEs. Herein, the resin-in-leach (RIL) process for REE recovery from PG ...
Removal and recovery of arsenic from concentrated sulfuric acid by solvent extraction
(Elsevier, 2019-05-13)
Arsenic-contaminated sulfuric acid solutions are produced in large quantities as by-product during pyrometallurgical processing of sulfide minerals. Options for re-using such acid solutions are increased if the arsenic is ...
Two alternative process routes for recovering pure indium from waste liquid crystal display panels
(Elsevier, 2019-09-25)
Recovering indium from liquid crystal display (LCD) screen waste is important from a sustainability point of view for several reasons: the environmentally hazardous metals are not landfilled, the recovery process involves ...
Novel mechanical pre-treatment methods for effective indium recovery from end-of-life liquid-crystal display panels
(Elsevier, 2019-05-15)
This study investigated the suitability of mechanical pre-treatment methods (mechanical abrasion and treatments of heat, laser, and plasma) together with a hydrometallurgical process comprising leaching and cementation for ...
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 ...
Design of bypass-simulated moving bed chromatography for reduced purity requirements
(Elsevier, 2019-05-08)
Bypass-Simulated moving bed (BP-SMB) chromatography, a process characterized by the possibility of over-purifying the raffinate and/or the extract product followed by blending with the feed, is studied. The BP-SMB provides ...
Anthocyanin-rich extract from purple potatoes decreases postprandial glycemic response and affects inflammation markers in healthy men
(Elsevier, 2019-10-26)
Our recent clinical study suggested that polyphenol-rich purple potatoes lowered postprandial glycemia and insulinemia compared to yellow potatoes. Here, 17 healthy male volunteers consumed yellow potatoes with or without ...
Ion exchange in complexing media – Nickel removal from ammoniacal ammonium sulfate solutions
(Elsevier, 2019-05-20)
In real hydrometallurgical systems, ion exchange of metal cations is often accompanied by competing processes, such as complex formation. In this paper, we have analyzed influence of complex formation on nickel uptake in ...