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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 ...