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Dissolution of Manganese from Polymetallic Material Using Sulfuric-Oxalic Acid Medium
Nuclear Materials Authority, El Maadi, Cairo, Egypt
Chemistry Department, Faculty of Science, Jazan University, Jazan, Saudi Arabia
Chemistry Department, Faculty of Science, Aswan University, Aswan, Egypt
- 1 Nuclear Materials Authority, El Maadi, Cairo, Egypt
- 2 Chemistry Department, Faculty of Science, Jazan University, Jazan, Saudi Arabia
- 3 Chemistry Department, Faculty of Science, Aswan University, Aswan, Egypt
American Journal of Analytical Chemistry·Volume 07 (2016)·Pages 469–477·Published 6 May 2016·DOI10.4236/ajac.2016.75044
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Abstract
Sedimentary rocks have been found to host several Mn minerals in addition to some economic metal values. Besides recoverable Al occurring as gibbsite mineral, the latter include Cu, Zn, Co, Ni, U as well as rare earth elements. In this work, the ore material was subjected to sulfuric acid leaching in the presence of oxalic acid as a reductant to maximize the extraction of Mn. The optimum leaching conditions to achieve almost complete leaching efficiency of Mn with Fe dissolution not exceeding 13% involved 0.5 M sulfuric acid and 0.25 M oxalic acid in a solid/liquid ratio of 1/15 at 85°C for 105 min using an ore size of -150 μm. The leaching behavior of the associated interesting metal values (Al, Cu and Zn) has also been investigated.
KeywordsPolymetallic Mn MaterialOxalic-Sulfuric AcidAgitation Dissolution
- Sahoo, R.N. and Rao, K.S. (1989) Sulphation-Roasting of Low-Grade Manganese Ores—Optimisation by Factorial Design. International Journal of Mineral Processing, 25, 147-152. http://dx.doi.org/10.1016/0301-7516(89)90061-6
- Momade, F.W.Y. and Momade, Zs.G. (1999) Reductive Leaching of Manganese Oxide Ore in Aqueous Methanol- Sulphuric Acid Medium. Hydrometallurgy, 51, 103-113. http://dx.doi.org/10.1016/S0304-386X(98)00077-2
- Panda, M. and Gupta, K.N. (1988) Carbothermic Reduction of Manganese Ore by Low Temperature Carbonized Coke. NML Technical Journal, 30, 25-32.
- Raisoni, P.R. and Dixit, S.G. (1988) Leaching of MnO2 with Mixed Non Aqueous Solvent Dimethyl Sulfoxide. Journal of Chemical Technology and Biotechnology, 42, 167-182. http://dx.doi.org/10.1002/jctb.280420302
- Das, S.C., Sahoo, P.K. and Rao, P.K. (1982) Extraction of Manganese from Low-Grade Manganese Ores by FeSO4 Leaching. Hydrometallurgy, 8, 35-47. http://dx.doi.org/10.1016/0304-386X(82)90029-9
- Abbruzzese, C. (1990) Percolation Leaching of Manganese Ore by Aqueous Sulfur Dioxide. Hydrometallurgy, 25, 85-97. http://dx.doi.org/10.1016/0304-386X(90)90066-B
- Abbruzzese, C., Duarte, M.Y., Paponetti, B. and Toro, L. (1990) Biological and Chemical Processing of Low-Grade Manganese Ores. Minerals Engineering, 3, 307-318. http://dx.doi.org/10.1016/0892-6875(90)90126-V
- Naik, P.K., Sukla, L.B. and Das, S.C. (2000) Aqueous SO2 Leaching Studies on Nishikhal Manganese Ore through Factorial Experiment. Hydromettalurgy, 54, 217-228. http://dx.doi.org/10.1016/S0304-386X(99)00075-4
- Jiang, T., Yang, Y.B., et al. (2003) Simultaneous Leaching of Manganese and Silver from Manganese-Silver Ores at Room Temperature. Hydrometallurgy, 69, 177-186. http://dx.doi.org/10.1016/S0304-386X(03)00033-1
- Jiang, T., Yang, Y.B., et al. (2004) Leaching Kinetics of Pyrolusite from Manganese-Silver Ores in the Presence of Hydrogen Peroxide. Hydrometallurgy, 72, 129-138. http://dx.doi.org/10.1016/S0304-386X(03)00136-1
- Chen, H.-H., Fu, C. and Zheng, D.-J. (1992) Reduction Leaching of Manganese Nodules by Nickel Matte in Hydrochloric Acid Solution. Hydrometallurgy, 28, 269-275. http://dx.doi.org/10.1016/0304-386X(92)90135-M
- Kanungo, S.B. (1999) Rate Process of the Reduction Leaching of Manganese Nodules in Dilute HCl in Presence of Pyrite: Part 1. Dissolution Behavior of Iron and Sulphur Species during Leaching. Hydrometallurgy, 52, 313-330. http://dx.doi.org/10.1016/S0304-386X(99)00023-7