A comparative study of electrochemical behavior of chalcopyrite, chalcocite and bornite in sulfuric acid solution

Elsa M. Arce, Ignacio González

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117 Citations (Scopus)

Abstract

A comparative study of the electrochemical behavior of different copper sulfide minerals (chalcopyrite, bornite and chalcocite) in sulfuric acid solutions was performed. Carbon paste electrodes (CPE) containing mineral particles with nonconducting binder were used. The comparative study shows that the chalcopyrite oxidation process does not produce covellite as claimed by some authors. Chalcopyrite oxidation has been found to produce a nonstoichiometric sulfide, Cun-1Fen-1S2n. On the other hand, it is apparent that bornite is not an intermediary species formed in the chalcopyrite reduction; the reduction of chalcopyrite directly produces chalcocite. © 2002 Elsevier Science B.V. All rights reserved.
Original languageAmerican English
Pages (from-to)17-28
Number of pages14
JournalInternational Journal of Mineral Processing
DOIs
StatePublished - 1 Nov 2002
Externally publishedYes

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bornite
chalcopyrite
Sulfuric acid
sulfuric acid
comparative study
Sulfide minerals
Oxidation
Binders
Sulfides
Minerals
Copper
Electrodes
Carbon
sulfide
oxidation
mineral
Ointments
electrode
copper
carbon

Cite this

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title = "A comparative study of electrochemical behavior of chalcopyrite, chalcocite and bornite in sulfuric acid solution",
abstract = "A comparative study of the electrochemical behavior of different copper sulfide minerals (chalcopyrite, bornite and chalcocite) in sulfuric acid solutions was performed. Carbon paste electrodes (CPE) containing mineral particles with nonconducting binder were used. The comparative study shows that the chalcopyrite oxidation process does not produce covellite as claimed by some authors. Chalcopyrite oxidation has been found to produce a nonstoichiometric sulfide, Cun-1Fen-1S2n. On the other hand, it is apparent that bornite is not an intermediary species formed in the chalcopyrite reduction; the reduction of chalcopyrite directly produces chalcocite. {\circledC} 2002 Elsevier Science B.V. All rights reserved.",
author = "Arce, {Elsa M.} and Ignacio Gonz{\'a}lez",
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T1 - A comparative study of electrochemical behavior of chalcopyrite, chalcocite and bornite in sulfuric acid solution

AU - Arce, Elsa M.

AU - González, Ignacio

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N2 - A comparative study of the electrochemical behavior of different copper sulfide minerals (chalcopyrite, bornite and chalcocite) in sulfuric acid solutions was performed. Carbon paste electrodes (CPE) containing mineral particles with nonconducting binder were used. The comparative study shows that the chalcopyrite oxidation process does not produce covellite as claimed by some authors. Chalcopyrite oxidation has been found to produce a nonstoichiometric sulfide, Cun-1Fen-1S2n. On the other hand, it is apparent that bornite is not an intermediary species formed in the chalcopyrite reduction; the reduction of chalcopyrite directly produces chalcocite. © 2002 Elsevier Science B.V. All rights reserved.

AB - A comparative study of the electrochemical behavior of different copper sulfide minerals (chalcopyrite, bornite and chalcocite) in sulfuric acid solutions was performed. Carbon paste electrodes (CPE) containing mineral particles with nonconducting binder were used. The comparative study shows that the chalcopyrite oxidation process does not produce covellite as claimed by some authors. Chalcopyrite oxidation has been found to produce a nonstoichiometric sulfide, Cun-1Fen-1S2n. On the other hand, it is apparent that bornite is not an intermediary species formed in the chalcopyrite reduction; the reduction of chalcopyrite directly produces chalcocite. © 2002 Elsevier Science B.V. All rights reserved.

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