Hydrometallurgical Extraction of Molybdenum and Rhenium from Molybdenite Flue Dust
- Authors
- Ilyas, Sadia; Srivastava, Rajiv Ranjan; Kim, Hyunjung; Cheema, Humma Akram; Bhatti, Ijaz Ahmad
- Issue Date
- Mar-2023
- Publisher
- Springer Science and Business Media Deutschland GmbH
- Keywords
- Hydrometallurgy; Molybdenites flue dust; Refractory metals
- Citation
- Minerals, Metals and Materials Series, pp.161 - 169
- Indexed
- SCOPUS
- Journal Title
- Minerals, Metals and Materials Series
- Start Page
- 161
- End Page
- 169
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/186016
- DOI
- 10.1007/978-3-031-22761-5_16
- ISSN
- 2367-1181
- Abstract
- Herein, the leaching of molybdenum and rhenium from the molybdenite roasting flue dust in H2SO4 was studied. The parametric studies showed that leaching performed at a pulp density, 10 wt./vol.%; H2SO4 concentration, 1.0 M; temperature, 90 °C; and time, 90 min was sufficient to yield 96% molybdenum and 93% rhenium. The leaching process significantly improved by raising the temperature from 30 °C to 90 °C, indicating an exothermic dissolution of refractory metals. Whereas the leaching kinetics indicated that the reaction mechanism changed from diffusion-controlled to chemically controlled, which was further confirmed by the apparent activation energy evaluated to be Ea(Mo), 35.5 kJ/mol, and Ea(Re), 21.5 kJ/mol.
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