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Metals 2017, 7(11), 502; doi:10.3390/met7110502

Effects of Matte Grade on the Distribution of Minor Elements (Pb, Zn, As, Sb, and Bi) in the Bottom Blown Copper Smelting Process

1
School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China
2
School of Metallurgy and Environment, Central South University, Changsha 410083, China
3
School of Chemical Engineering, University of Queensland, Brisbane, QLD 4702, Australia
*
Authors to whom correspondence should be addressed.
Received: 19 September 2017 / Revised: 9 November 2017 / Accepted: 9 November 2017 / Published: 14 November 2017
(This article belongs to the Special Issue Heavy Metal Determination and Removal)
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Abstract

With increasing impurity contents in concentrates, the control of the minor elements is an important issue for the oxygen bottom blown copper smelting process (Shuikoushan process or SKS process). In this work, the distribution behaviors of the minor elements (such as Pb, Zn, As, Sb, and Bi) among the matte, slag, and gas phases as a function of matte grades was investigated by adjusting the ratios of oxygen/ore in the SKS process. With a matte grade around 70%, about 82% As and 70% Bi enters the gas phase, and about 70% Sb and 64% Zn reports to the slag phase, while 55% lead enters the matte phase. The tendency of changes in the distribution of the minor elements in the SKS process is different from that in the Isasmelt process and the Flash smelting process. It may be concluded from this study that the distributions of the minor elements could be optimized to reduce adverse effects in the SKS process by regulating the matte grade. View Full-Text
Keywords: element distribution; removing impurity; oxygen bottom blown copper smelting process; SKS process element distribution; removing impurity; oxygen bottom blown copper smelting process; SKS process
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Wang, Q.; Guo, X.; Tian, Q.; Jiang, T.; Chen, M.; Zhao, B. Effects of Matte Grade on the Distribution of Minor Elements (Pb, Zn, As, Sb, and Bi) in the Bottom Blown Copper Smelting Process. Metals 2017, 7, 502.

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