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Copper
and its alloys
Complete
plants for Copper Scrap Recycling
• Electrowinning plants for copper recovery from scrap.
• Units for sorting and pre-treatment of scrap and turnings.
Plants for scrap cable shredding.
• Various types of furnaces.
Complete
plants for Copper Semiproduction
• Bus bars
• Rods
• Tubing
More
about the Ecuprex Process
The ECUPREX process is a hydrometallurgical/electrochemical
system designed to recover pure copper from primary and secondary
copper materials based on copper metal and secondary copper
sulphides.
The process, using a fluoborate system, is based on two main
steps:
? The oxidative leaching of copper compounds (metal and secondary
sulphides)
? The Electrowinning of the leachate in a diaphragm divided
cell
The Electrowinning cell is the core of the process because in
it the copper is plated and the oxidising system is regenerated.
The process has been successfully tested in a lab scale pilot
plant on:
? Copper scrap
? Secondary copper sulphide concentrates
? Copper matte/white metal
The process is also suitable to deal with some copper bearing
liquid streams through the precipitation of copper and its recovery
in form of cathode. This approach was successfully tested, for
example, on the regeneration of pickling solutions coming from
printed circuit boards production.
The treatment of primary copper concentrates has to undergo
to a pre-treatment to convert the primary copper sulphide in
a suitable copper compound.
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