Removal of selenium from acidic copper sulphate solutions
Replaceable cathode unit suitable as module for building up...
Resilient liner for an electrolytic cell
Restoration of diaphragms in manganese electrowinning
Reticulate electrode for recovery of metal ions and method...
Reticulated electrical connector
Retrofit aluminum smelting cells using inert anodes
Reusable electrolysis cathode for electrodeposition of metals
Reusable integrated cathode unit
Reusable integrated cathode unit with surface array of metal...
Roast-leach copper recovery
Rotary electroplating of spaced conductive areas