Abstract
The utilization of low-grade manganese ores has drawn much attention owing to the rapid depletion of high-grade manganese ore resources. In this study, low-grade manganese carbonate ores were treated by roasting-ammonia leaching method. The effects of roasting temperature, roasting time, ammonia concentration, ammonium carbonate concentration and liquid-to-solid ratio on Mn leaching were discussed. The leaching efficiency of 85.6 for Mn was obtained under the following conditions: 650 of roasting temperature, 1 h roasting time, 14 mol/L of ammonia concentration, 2 mol/L of ammonium carbonate concentration, 80 min of leaching time and 5:1 of liquid/solid ratio.
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© 2019 The Minerals, Metals & Materials Society
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Tu, Z., Liang, X., Yang, X., Ren, S., Wu, C., Wang, Y. (2019). Recovery of Manganese by Roasting-Ammonia Leaching from Low-Grade Manganese Carbonate Ores. In: Azimi, G., Kim, H., Alam, S., Ouchi, T., Neelameggham, N., Baba, A. (eds) Rare Metal Technology 2019. The Minerals, Metals & Materials Series. Springer, Cham. https://doi.org/10.1007/978-3-030-05740-4_11
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DOI: https://doi.org/10.1007/978-3-030-05740-4_11
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