Electrodeposition of copper from pure cupric chloride hydrochloric acid solutions

T. Kekesi, M. Isshiki

Research output: Contribution to journalArticle

41 Citations (Scopus)

Abstract

Electrodeposition from CuCl2-HCl media has been investigated to establish a clean and direct method of copper extraction from cupric chloride solutions purified by anion exchange. The major difficulties of the process - cathode corrosion, CuCl precipitation and roughness of the deposit - were taken into consideration. To prevent contamination, no chemical agents or additives were used in the electrolyte preparation. The workable range of electrolyte composition was approached from a computer aided stability study of the different aquo- and chloro-complex copper species. Experiments suggested that coordination of the fundamental electrolysis parameters can ensure acceptable copper deposits and current efficiencies. A special method of agitation proved effective in improving the conditions.

Original languageEnglish
Pages (from-to)982-990
Number of pages9
JournalJournal of Applied Electrochemistry
Volume27
Issue number8
DOIs
Publication statusPublished - Jan 1 1997

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Electrochemistry
  • Materials Chemistry

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