Ambient temperature oxidation of enargite (Cu3AsS4)

N. J. Welham*

*Corresponding author for this work

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    9 Citations (Scopus)

    Abstract

    A commercial enargite concentrate was mechanically milled in inert and oxidising atmospheres for 10 hours. No substantial effect was observed in either an inert atmosphere or in air other than a broadening and weakening of the diffraction peaks. Milling dry in oxygen or wet in air was dramatic with a significant reaction occurring which formed arsenolite, As2O3 and CuSO4.5H2O, both of which are readily soluble. A small amount of SO2 was also formed. Dissolution in acid left CuS as the major phase implying incomplete oxidation. The small fraction of tennantite in the sample was comparatively resistant to oxidation.

    Original languageEnglish
    Title of host publicationThe AusIMM Proceedings Volume 306, No 1
    PublisherAustralasian Institute of Mining and Metallurgy
    Pages79-81
    Number of pages3
    Volume306
    Edition1
    Publication statusPublished - Jul 2001

    Publication series

    NameAusIMM Proceedings
    PublisherInstitution of Mining and Metallurgy
    ISSN (Print)1034-6783

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