Abstract
Copper sulphide processing technologies face increasing pressures associated with decreasing concentrate grade leading to increasing thermal inefficiency and lower productivity . Impurity concentrations are on average increasing, creating potential environmental risk and additional treatment costs. In copper flash smelters dust, partially oxidised materials and fume formed from the condensation of volatile impurities, are routinely recycled to the feed. In the converting stage the heat balance is maintained by charging anode reverts and other inert materials. In both cases, the thermal energy available from sulphide oxidation is not fully utilised or optimised. The productivities of both smelter and converter stages can be potentially increased through the addition of a high copper , low iron , low impurity precipitated copper product. Calculations are carried out for fayalite smelter and calcium ferrite converter slags using an optimised FactSage thermodynamic database . The potential for significant increases in smelter and converter productivities using existing technologies are predicted.
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© 2018 The Minerals, Metals & Materials Society
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Jak, E., Shishin, D., Hawker, W., Vaughan, J., Hayes, P.C. (2018). Improved Copper Smelter and Converter Productivity Through the Use of a Novel High-Grade Feed. In: Davis, B., et al. Extraction 2018. The Minerals, Metals & Materials Series. Springer, Cham. https://doi.org/10.1007/978-3-319-95022-8_21
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DOI: https://doi.org/10.1007/978-3-319-95022-8_21
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Publisher Name: Springer, Cham
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Online ISBN: 978-3-319-95022-8
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