Aspects of the development of a copper electrowinning cell based on reactive electrodialysis

Cifuentes, Luis Fernández; Glasner, R; Casas, J. Manuel

doi:10.1016/j.ces.2003.12.013

Cited by 32 publications

(25 citation statements)

References 47 publications

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“…(20) and (21)) were fitted to data for secondary reactions. Other kinetic data have been published elsewhere (Cifuentes et al, 2004a(Cifuentes et al, , 2007Casas et al, 2000Casas et al, , 2003Casas et al, , 2005a.…”

Section: Model Solutionmentioning

confidence: 90%

“…The limitations of the operation of conventional copper electrowinning cells (low mass transfer rate, low specific cathode surface area, high cell voltage, air contamination with acid mist) have been discussed by a number of authors (Cifuentes et al, 2004a and references therein). In order to overcome such limitations, several alternative cells have been developed.…”

Section: Overcoming the Limitations Of Conventional Copper Electrowinmentioning

confidence: 98%

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Modelling the effect of temperature and time on the performance of a copper electrowinning cell based on reactive electrodialysis

Cifuentes¹,

Casas²,

Simpson³

2008

Chemical Engineering Science

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Section: Model Solutionmentioning

confidence: 90%

Section: Overcoming the Limitations Of Conventional Copper Electrowinmentioning

confidence: 98%

Modelling the effect of temperature and time on the performance of a copper electrowinning cell based on reactive electrodialysis

Cifuentes¹,

Casas²,

Simpson³

2008

Chemical Engineering Science

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“…Among techniques as chemical precipitation and ion exchange, two electrochemical methods are used to contribute to the solution of this serious environmental problem e.g. electrodialysis [52] and electrodeionization with simultaneously water recovery for reuse) [4,5,[9][10][11][12][13]. The proposed new electrostatic shielding electrodialysis cell with ICSs instead of ion exchange membranes has proved to be efficient also for the removal of heavy metal ions such as Ni fig.1b.…”

Section: +mentioning

confidence: 99%

“…Electrodialysis has been successfully performed over the last decades mainly in the production of potable water from brackish or seawater [6], regeneration of ion exchange resins [4,5] and production of pure or ultrapure water, demineralization and deacidification in food or pharmaceutical processing [7], purification of radioactive waste water in nuclear power plants [8] and recovery of water and valuable metals from industrial effluents [9][10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

A new process for desalination and electrodeionization of water by means of electrostatic shielding zones – ionic current sinks.

Dermentzis¹,

Papadopoulou²,

Christoforidis³

et al. 2009

JESTR

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We constructed electrostatic shielding zones made of electrode graphite powder and used them as a new type of ionic and electronic current sinks. Because of the local elimination of the applied electric field, voltage and current within the current sinks, ions are led inside them and accumulate there. The sinks become ion concentrating compartments whereas the adjacent compartments become ion depleting compartments. The proposed electrodeionization process uses no permselective ion exchange membranes. We implemented it in electrodialysis desalination of a synthetic brackish 0.03 M NaCl solution and obtained potable water with a NaCl concentration <500 mg L -1 . Furthermore, we performed electrodialysis of 0.002 M NiSO 4 and electrodeionization of 0.001 M NiSO 4 solutions with simultaneous electrochemical regeneration of the used ion exchange resin beds. By the continuous mode of electrodeionization of the 0.001 M NiSO 4 solution we obtained pure water with a Ni 2+ ion concentration of less than 0.5 mg L -1 at a flow rate of 2.3 x10 -4 L s -1 diluate stream

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“…Electrodialysis systems purify solutions using ionic exchange membranes 6,7,8,9,10,11 . Implementing the cathodic or anionic membranes enables the use of different work environments for the same working cell 12,13,14 .…”

Section: Introductionmentioning

confidence: 99%

Zinc Electrowinning Using Reactive Electrodialysis (Red)

Cifuentes

Bustos

Hernández

et al. 2014

J. Chil. Chem. Soc.

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This paper presents an alternative process for the conventional zinc electrowinning, which consists of a cell of two compartments separated by a anion exchange membrane.One of them contains a zinc sulphate catholyte and sulfuric acid while the anolyte solution contains ferrous sulfate and sulfuric acid.By using a membrane the classical lead anode may be replaced, as well as the main oxidation reaction of water, for that of the ferrous ion to ferric ion.This leads to significant savings in specific energy consumption of the overall process and eliminates the classic problem of acid mist in electrowinning cells.The results show that the proposed process consumes 30% less cell potential compared to conventional electrowinning cell.

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Aspects of the development of a copper electrowinning cell based on reactive electrodialysis

Cited by 32 publications

References 47 publications

Modelling the effect of temperature and time on the performance of a copper electrowinning cell based on reactive electrodialysis

Modelling the effect of temperature and time on the performance of a copper electrowinning cell based on reactive electrodialysis

A new process for desalination and electrodeionization of water by means of electrostatic shielding zones – ionic current sinks.

Zinc Electrowinning Using Reactive Electrodialysis (Red)

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