Electrowinning of copper in a lab‐scale squirrel‐cage cell with anion membrane

Cifuentes, Luis Fernández; Ortíz-Soto, Rodrigo; Casas, J. Manuel

doi:10.1002/aic.10476

Cited by 13 publications

(11 citation statements)

References 13 publications

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“…Conventional copper electrowinning cells exhibit limitations (limited mass transfer rates, limited specific surface area of the cathodes, high specific energy consumption, environmental issues) which have led to the development of several alternative designs [1] such as the fluidised bed cell [2][3][4][5][6] , the spouted bed cell [7][8][9] and the squirrelcage cell [10] . These cells have been shown to produce reductions in energy requirements.…”

Section: I In Nt Tr Ro Od Du Uc Ct Ti Io On Nmentioning

confidence: 99%

Copper electrowinning in a moving-bed cell based on reactive electrodialysis

Cifuentes¹,

Arriagada²

2008

Rev. metal.

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Section: I In Nt Tr Ro Od Du Uc Ct Ti Io On Nmentioning

confidence: 99%

Copper electrowinning in a moving-bed cell based on reactive electrodialysis

Cifuentes¹,

Arriagada²

2008

Rev. metal.

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“…Hydrometallurgy is an important area of extractive metallurgy and accounted for 20–25% of global copper production in 2012, estimated at 17.0 million tons, using the leach–solvent–extraction electrowinning technology . In this process, flat plate electrodes are used for metal electrodeposition, typically applying current densities of around 300 A m ‐2 , which requires large electrowinning tankhouses, so that the space‐time yield is low.…”

Section: Introductionmentioning

confidence: 99%

Parametric study of copper electrowinning using a pulsed-bed electrode reactor

Britto-Costa

Ruotolo

2014

J. Chem. Technol. Biotechnol.

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BACKGROUND: The pulsed bed electrode (PBE) has been used successfully for copper electrodeposition from highly concentrated acidic electrolytes. Advantages of this electrode include high space-time yield (Y) and simple operation and maintenance. In this work, the effects of operational conditions were investigated in an attempt to achieve current efficiencies (CE) higher than 76.7%, which was the maximum value obtained in a previous study. RESULTS:The results showed that use of a high current density and low acid concentration provided the best operational conditions for maximizing CE and Y, and minimizing the energy consumption (EC). Nonetheless, the highest current density was limited to 3000 A cm -2 and the lowest acid concentration was limited to 110 g L -1 , due to limitations such as metal dissolution, dendrite growth, and short circuiting. The highest CE achieved was 77.7%, using 2838 A m -2 . According to a statistical model, the maximum CE value that could be achieved is 82.4%, with application of 3000 A cm -2 . This suggests that further improvement of CE would lead to values of EC lower than those found in electrowinning plants.CONCLUSIONS: Electrowinning using a pulsed-bed electrode is an excellent method for copper production, but additional improvements are required to increase CE.

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“…Particularly, the integration of CED and /or BMED with other separation techniques provides versatile tools for industrial separations and thus has received more attention recently. These integrated processes are mainly classified as follows: The integration of ED with chemical unit operations, such as ion exchange, adsorption, electrolysis, extraction, complexation, stripping, absorption, and distillation, which are widely used in chemical separation and environmental protection 4, 13, 23–27 The integration of ED with pressure‐driven membrane processes, such as microfiltration, ultrafiltration, nanofiltration, and reverse osmosis, which are often used in water treatment, feed pretreatment, fractionation of biochemical species, and concentration and desalination of sea water 28–38…”

Section: Introductionmentioning

confidence: 99%

“…The integration of ED with chemical unit operations, such as ion exchange, adsorption, electrolysis, extraction, complexation, stripping, absorption, and distillation, which are widely used in chemical separation and environmental protection 4, 13, 23–27…”

Section: Introductionmentioning

confidence: 99%

Electrodialysis‐based separation technologies: A critical review

2008

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in Wiley InterScience (www.interscience.wiley.com).To support a sustainable industrial growth, chemical engineering today faces a crucial challenge of meeting the increasing demand for materials and energy. One possible solution is to decrease the equipment size/productivity ratio, energy consumption, and waste generation via process integration and optimization. This review focuses on the integration of electrodialysis with traditional unit operations and other membrane separations. Such integrations, due to their diversity and practicability, can be versatile tools to meet specific needs from chemical, biochemical, food, and pharmaceutical industries.

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Electrowinning of copper in a lab‐scale squirrel‐cage cell with anion membrane

Cited by 13 publications

References 13 publications

Copper electrowinning in a moving-bed cell based on reactive electrodialysis

Copper electrowinning in a moving-bed cell based on reactive electrodialysis

Parametric study of copper electrowinning using a pulsed-bed electrode reactor

Electrodialysis‐based separation technologies: A critical review

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