Study on copper ferrite dissolution in sulphuric acid

Rudi Subagja, Akio Fuwa

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    Abstract

    In this research, dissolution of synthesized copper ferrite in aqueous sulphuric acid was investigated where temperatures were varied from 323 K to 343 K and sulphuric acid concentration from 1 M to 3 M. Effects of Fe3+, Fe2+ and SO4 2- were also studied. The experimental results have shown that in the initial period of dissolution, the rate of copper was greater than the of iron, leaving the Fe2O3 layer outside. After a long dissolution period, the stoichiometric dissolution of copper and iron was attained as CuFe2O4 + 8 H+ = Cu+ +2 Fe3+ + 4 H2O. Increase is temperature and acid concentration lead to an increase in the dissolution rate. However, increases in Fe3+, Fe2+ or SO4 2- decreased the dissolution rate due to the decrease in hydrogen ion activity.

    Original languageEnglish
    Pages (from-to)49-54
    Number of pages6
    JournalShigen to sozai
    Volume105
    Issue number1
    Publication statusPublished - 1989 Jan

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    ASJC Scopus subject areas

    • Engineering(all)

    Cite this

    Subagja, R., & Fuwa, A. (1989). Study on copper ferrite dissolution in sulphuric acid. Shigen to sozai, 105(1), 49-54.