Copper precipitation during leaching of various copper sulfide concentrates with cupric chloride in acidic solutions

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24 Citations (Scopus)

Abstract

The leaching behavior of copper sulfides in concentrated cupric chloride solution at 95 degrees C and at ambient pressure was studied in order to scrutinize the leaching behavior of a single bornite and four different chalcopyrite concentrates obtained from various mines around the world. The highest chalcopyrite oxidation was achieved with the highest pyrite content in the concentrate, suggesting galvanic effect on chalcopyrite dissolution. It was found that iron and copper from chalcopyrite did not dissolve into the solution in an equal ratio, as expected. A significant amount of copper precipitated at pH

Original languageEnglish
Pages (from-to)136-142
Number of pages7
JournalHydrometallurgy
Volume166
DOIs
Publication statusPublished - Dec 2016
MoE publication typeA1 Journal article-refereed

Keywords

  • CuS precipitation
  • Sulfide concentrates
  • Chloride solution
  • Chalcopyrite
  • Bornite
  • CHALCOPYRITE
  • DISSOLUTION
  • THERMODYNAMICS
  • ELECTROLYTES
  • MEDIA
  • IRON

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