Abstract
Oxygen-rich side-blow bath smelting (OSBS) technology offers an efficient method for processing complex bismuth-lead concentrates; however, the element distributions in the process remain unclear. This work determined the distributions of elements, i.e., bismuth, lead, silver, copper, arsenic and antimony, in an industrial-scale OSBS process. The feed, oxidized slag and final products were collected from the respective sampling points and analyzed. For the oxidative smelting process, ~ 65% of bismuth and ~ 76% of silver in the concentrate report to the metal alloy, whereas less lead reports to the metal (~ 31%) than the oxidized slag (~ 44%). Approximately 50% of copper enters the matte, while more than 63% of arsenic and antimony report to the slag. For the reductive smelting process, less than 4.5% of bismuth, lead, silver and copper in the oxidized slag enter the reduced slag, indicating high recoveries of these metal values.
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Acknowledgements
Financial support from the National Science Foundation of China (no. 21306231), the China Scholarship Council (no. 2017063750005) and Natural Science Foundation of Hunan province (no. 2018JJ3662) are gratefully acknowledged. The effort of Mr. Wang Zhixiong in helping with the sampling and sharing his experiences regarding the OSBS process is greatly appreciated.
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Yang, T., Xiao, H., Chen, L. et al. Element Distribution in the Oxygen-Rich Side-Blow Bath Smelting of a Low-Grade Bismuth-Lead Concentrate. JOM 70, 1005–1010 (2018). https://doi.org/10.1007/s11837-018-2813-4
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DOI: https://doi.org/10.1007/s11837-018-2813-4