A hydrometallurgical process combining electrowinning, sequential acid leaching, and MRT™ separations achieved >99% metal purity of Cu, Ni, Fe, Sn, Ag, Pd, and Pt from a collector metal alloy, as presented at the International Conference on Responsible Electronics and Circular Technologies (REACT 2025)

Cu and Cd are removed below detection limits from Co electrolytes with SuperLig® 132 and SuperLig® 177 respectively, as presented at the 6th International Symposium on Nickel and Cobalt

– Pilot testing at the Caraiba Metals electrolytic copper refinery in Brazil to demonstrate that the MRT™ system removes both bismuth and antimony from tankhouse electrolyte – Pilot testing at the Chuquicamata Division of Codelco, Chile for removal of chloride from copper refinery electrolyte – Recovery of copper and other metals from acid mine drainage...

Industrial separations: Pd, Rh, Hg from sulfuric acid, Cu purification (Bi and Sb), high copper gold ore

– Highly selective separation and recovery of gold from pregnant cyanide leach solution containing significant copper values – Economics of MRT™ systems for gold and copper recovery feature simple process flowsheets, high target metal selectivity, and low consumption of operating chemicals – Extraction and recovery of mercury from concentrated sulfuric acid at the Britannia Zinc...

– Highly selective separation and recovery of palladium, gold, platinum, and rhodium from copper refinery by-product stream originating from treatment of copper tankhouse slimes – Key economic, process, and environmental benefits of MRT™ systems

Applications in the Cu industry for highly selective extraction and high recovery rates of the following: Hg from concentrated sulfuric acid streams Bi and Sb from Cu sulfate electrolytes Pt group metals and rhenium from copper refinery slimes and from molybdenite roaster dust Chloride ion from Cu sulfate electrolytes Cu from acid mine drainage and...Continue reading

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Bismuth removal and recovery from selenium reduction discharge solution (HCl matrix)

– Highly selective separation of: – Bismuth from copper electrolyte – Bismuth from selenium reduction solution – Antimony from copper electrolyte – Platinum group metals from copper refinery slimes – Mercury from concentrated sulfuric acid streams – Copper from acid mine drainage streams – Copper, iron, and nickel from a cobalt feed stream in a...