Abstract
The tin-bearing middling obtained by flotation in Huanggang, Inner Mongolia, is with SnO2 content of 3–5 wt%, which was stacked and cannot be utilized, leading to the tin resource wasting and environmental pollution. In order to recover this tin resource, the tin volatilization behaviour in the tin-bearing middling during carbothermic reduction in rotary kiln process was studied in this paper. The results show that the volatilization rate can reach 87.4% and the SnO2 content in the residue decreased to 0.57 wt% under the conditions of Kiln tail: Kiln middle: Kiln head (coal addition ratio) with 1:2:7, the proportion of ball and coal was 20 kg: 20 kg and the pellets size was 5–10 mm at 1000 °C for 2 h. The research could provide a technical reference for the utilization of the tin-bearing middling .
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© 2019 The Minerals, Metals & Materials Society
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Jing, J., Guo, Y., Chen, F., Zheng, F., Yang, L. (2019). Study on Volatizing Tin from Tin-Bearing Middling by Carbothermic Reduction in Rotary Kiln. In: Jiang, T., et al. 10th International Symposium on High-Temperature Metallurgical Processing. The Minerals, Metals & Materials Series. Springer, Cham. https://doi.org/10.1007/978-3-030-05955-2_20
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DOI: https://doi.org/10.1007/978-3-030-05955-2_20
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