Galvanic conversion of chalcopyrite

J. Brent Hiskey, Milton E. Wadsworth

Research output: Contribution to journalArticle

48 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 languageEnglish (US)
Pages (from-to)183-190
Number of pages8
JournalMetallurgical and Materials Transactions B
Volume6
Issue number1
DOIs
StatePublished - Mar 1 1975

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ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanics of Materials
  • Metals and Alloys
  • Materials Chemistry

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