Behaviour of anode impurities in copper electrorefining

Fumio Noguchi, Norihisa Iida, Takashi Nakamura, Yasuaki Ueda

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)


Many factors which affect the anode passivation during electrolysis were discussed. These factors includes the amount of slime and slime adhesiveness. The internal factor which affects the amount of slime includes the kinds, concentration and the form of impurities in the anode. The external factor includes the concentration of the dissolved oxygen and impurity ions in electrolyte and the electrolytic condition such as current density. The possibility of passivation increased markedly with an increasing amount of coexisting oxygen in anode, higher current density and greater concentration of dissolved oxygen and impurity ions in electrolyte.

Original languageEnglish
Pages (from-to)83-98
Number of pages16
JournalMetallurgical Review of MMIJ (Mining and Metallurgical Institute of Japan)
Issue number2
Publication statusPublished - 1992 Mar 1

ASJC Scopus subject areas

  • Metals and Alloys


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