Abstract
The first bottom blown copper smelting furnace (BBF) has been successfully operated for 10 years at Dongying Fangyuan Nonferrous Metals. In addition to many advantages of the BBF reported previously, stable operation with spinel-containing slags enabled the BBF refractories to achieve three-year campaign life. Understanding of the degradation mechanisms of the magnesia-chromite refractory will be able to further prolong the service life of the refractories and develop new refractories. In the present study, the post-mortem refractories were collected from different locations of the BBF during the annual maintenance. It is the first systematic study for the used refractories of a BBF. The phases present in the refractories and their compositions have been determined by Electron Probe X-Ray Microanalysis. The degradation mechanisms of the refractories are discussed based on the analyses. The results will be used to optimize the operation and select proper refractories in the furnaces.
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References
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Acknowledgements
The authors would like to thank Dongying Fangyuan Nonferrous Metals for financial support and technical support for the sampling. The authors acknowledge the facilities, and the scientific and technical assistance, of the Australian Microscopy and Microanalysis Research Facility at the Centre for Microscopy and Microanalysis, The University of Queensland.
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© 2018 The Minerals, Metals & Materials Society
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Chen, M., Cui, Z., Wei, C., Zhao, B. (2018). Degradation Mechanisms of Refractories in a Bottom Blown Copper Smelting Furnace. In: Hwang, JY., et al. 9th International Symposium on High-Temperature Metallurgical Processing. TMS 2018. The Minerals, Metals & Materials Series. Springer, Cham. https://doi.org/10.1007/978-3-319-72138-5_15
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DOI: https://doi.org/10.1007/978-3-319-72138-5_15
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