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

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 Antofagas...

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Bibliographic Details
Published in:IEEE transactions on industry applications 2011-05, Vol.47 (3), p.1175-1179
Main Authors: Wiechmann, E P, Morales, A S, Aqueveque, P, Mayne-Nicholls, R
Format: Article
Language:English
Subjects:
Bars
Carbon
Carbon footprint
Carbon monoxide
CATHODES
cell voltage
CONSUMPTION
Copper
Current density
current density dispersion
current efficiency
Dispersion
ELECTROWINNING
electrowinning (EW)
Energy consumption
Footprints
intercell bar
specific energy
Strategy
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Summary: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 CO 2 will be saved per year.
ISSN:0093-9994
1939-9367
DOI:10.1109/TIA.2011.2126035