Activated sulfating roasting of the chalcopyrite concentrate for sulfuric-acid leaching

The sulfating roasting of the chalcopyrite concentrate with various pyrite contents is investigated in activated conditions in order to obtain the preferentially sulfate cinder most suitable for leaching and for the effective recovery of copper and accompanying iron. The activating effect that the t...

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Bibliographic Details
Published in:Russian journal of non-ferrous metals 2010-10, Vol.51 (5), p.386-388
Main Authors: Sargsyan, L. Ye, Hovhannisyan, A. M.
Format: Article
Language:English
Subjects:
Activated
Chalcopyrite
Chemistry and Materials Science
Iron
Leaching
Materials Science
Metallic Materials
Metallurgy of Nonferrous Metals
Nonferrous metals
Pyrite
Roasting
Sulfates
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Summary:The sulfating roasting of the chalcopyrite concentrate with various pyrite contents is investigated in activated conditions in order to obtain the preferentially sulfate cinder most suitable for leaching and for the effective recovery of copper and accompanying iron. The activating effect that the trivalent iron sulfate which forms as a result of the low-temperature oxidation of pyrite, as well as the steam-air medium, has on the kinetics and completeness of the sulfatization of the concentrate are shown.
ISSN:1067-8212
1934-970X
DOI:10.3103/S1067821210050032