Electrowinning copper differs from electrorefining in that electrorefining uses a copper anode that is dissolved and redeposited on the cathode, while in electrowinning the copper is already in solution and is extracted from the solution by passing a current through the solution using an inert lead-alloy anode, and a cathode.
12.
Electrowinning copper differs from electrorefining in that electrorefining uses a copper anode that is dissolved and redeposited on the cathode, while in electrowinning the copper is already in solution and is extracted from the solution by passing a current through the solution using an inert lead-alloy anode, and a cathode.
13.
Platinum, along with the rest of the electrorefining of copper, noble metals such as silver, gold and the platinum-group metals as well as selenium and tellurium settle to the bottom of the cell as " anode mud ", which forms the starting point for the extraction of the platinum-group metals.
14.
"' Electrowinning "', also called "'electroextraction "', is the electrodeposition of metals from their ores that have been put in solution via a process commonly referred to as leaching . "'Electrorefining "'uses a similar process to remove impurities from a metal.
15.
The "'IsaKidd Technology "'is a copper electrorefining and electrowinning technology that was developed independently by Copper Refineries Proprietary Limited ( CRL ), a Townsville, Queensland subsidiary of MIM Holdings Limited ( which is now part of the Glencore Xstrata group of companies ), and at the Falconbridge Limited ( Falconbridge ) now-dismantled Kidd Creek refinery that was at Timmins, Ontario.
