Galvanic conversion of chalcopyrite

J. Brent Hiskey; Milton E. Wadsworth

doi:10.1007/BF02825693

Galvanic conversion of chalcopyrite

J. Brent Hiskey, Milton E. Wadsworth

Research output: Contribution to journal › Article › peer-review

58 Scopus citations

Abstract

Galvanic interaction between particulate chalcopyrite (CuFeS₂) and copper results in the rapid conversion of chalcopyrite to chalcocite. The effects of temperature, surface area, concentration of sulfuric acid and agitation were systematically evaluated. The kinetics were found to be controlled by a steady-state current flow controlled by the effective anodic and cathodic surface areas involved in the galvanic couple. The experimental activation energy was 11.5 and stoichiometric data and reaction products have been characterized. The overall kinetic system has been evaluated based upon an electrochemical model.

Original language	English (US)
Pages (from-to)	183-190
Number of pages	8
Journal	Metallurgical and Materials Transactions B
Volume	6
Issue number	1
DOIs	https://doi.org/10.1007/BF02825693
State	Published - Mar 1975
Externally published	Yes

ASJC Scopus subject areas

Condensed Matter Physics
Mechanics of Materials
Metals and Alloys
Materials Chemistry
General Materials Science

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abstract = "Galvanic interaction between particulate chalcopyrite (CuFeS2) and copper results in the rapid conversion of chalcopyrite to chalcocite. The effects of temperature, surface area, concentration of sulfuric acid and agitation were systematically evaluated. The kinetics were found to be controlled by a steady-state current flow controlled by the effective anodic and cathodic surface areas involved in the galvanic couple. The experimental activation energy was 11.5 and stoichiometric data and reaction products have been characterized. The overall kinetic system has been evaluated based upon an electrochemical model.",

author = "Hiskey, {J. Brent} and Wadsworth, {Milton E.}",

year = "1975",

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AU - Hiskey, J. Brent

AU - Wadsworth, Milton E.

PY - 1975/3

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N2 - Galvanic interaction between particulate chalcopyrite (CuFeS2) and copper results in the rapid conversion of chalcopyrite to chalcocite. The effects of temperature, surface area, concentration of sulfuric acid and agitation were systematically evaluated. The kinetics were found to be controlled by a steady-state current flow controlled by the effective anodic and cathodic surface areas involved in the galvanic couple. The experimental activation energy was 11.5 and stoichiometric data and reaction products have been characterized. The overall kinetic system has been evaluated based upon an electrochemical model.

AB - Galvanic interaction between particulate chalcopyrite (CuFeS2) and copper results in the rapid conversion of chalcopyrite to chalcocite. The effects of temperature, surface area, concentration of sulfuric acid and agitation were systematically evaluated. The kinetics were found to be controlled by a steady-state current flow controlled by the effective anodic and cathodic surface areas involved in the galvanic couple. The experimental activation energy was 11.5 and stoichiometric data and reaction products have been characterized. The overall kinetic system has been evaluated based upon an electrochemical model.

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Galvanic conversion of chalcopyrite

Abstract

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