Copper purification by anion-exchange separation in chloride media

Masahito Uchikoshi, Tamás Kékesi, Yukio Ishikawa, Koji Mimura, Minoru Isshiki

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

Anion-exchange separation in chloride media is applied for the preparation of high purity copper. Oxygen free copper (OFC) which has a residual resistivity ratio of 190 is used as a starting material. Copper refined by the purification process based on the anion-exchange separation shows residual resistivity ratio of 2300 which is much larger than that of the starting material. Glow discharge mass spectrometry analysis shows that almost all impurities are effectively removed by the purification process. High purity copper is successfully obtained by the purification process based on the anion exchange separation.

Original languageEnglish
Pages (from-to)1083-1088
Number of pages6
JournalMaterials Transactions, JIM
Volume38
Issue number12
DOIs
Publication statusPublished - 1997 Jan 1

Keywords

  • Anion-exchange separation
  • High purity copper
  • Hydrogen reduction
  • Residual resistivity ratio

ASJC Scopus subject areas

  • Engineering(all)

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