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Reducing Specific Energy to Shrink the Carbon Footprint in a Copper Electrowinning Facility

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4 Author(s)
Wiechmann, E.P. ; Univ. of Concepcion, Concepcion, Chile ; Morales, A.S. ; Aqueveque, P. ; Mayne-Nicholls, R.

Various technologies and strategies to reduce specific energy consumption are examined. Results include 16 harvest cycles for 30 cells, totaling 62 400 cathodes with a weight of 2500 ton. The industrial site was Zaldivar, which is a Barrick mining operation located at 175 km southeast from Antofagasta, Chile. The production averages 140 000 ton/year of copper cathodes. With the technologies tested in this paper, 14 000 MWh and corresponding 14 000 ton of CO2 will be saved per year.

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Industry Applications, IEEE Transactions on  (Volume:47 ,  Issue: 3 )