Title: SO2 Electrowinning in Copper Hydrometallurgy for Energy Conservation
Abstract: Conventional copper electrowinning involves the decomposition of water at the anode and has a cell potential of approximately 2 V. If the anode reaction is changed to involve the oxidation of sulfur dioxide the cell voltage can be cut almost in half and this change can dramatically affect the overall energy consumption of a hydrometallurgical process. As well as saving energy, this reaction also produces twice as much sulfuric acid and so has a double benefit when properly integrated into an overall process flowsheet. This paper discusses the electrochemistry of the reaction and indicates how it can be integrated into the Sherritt-Cominco process and the leach/solvent extraction/electrowinning process.
Publication Year: 1984
Publication Date: 1984-01-01
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 7
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