Journal article
Preparation and characterization of EMD from manganese cake — A byproduct of manganese nodule processing
Hydrometallurgy, Vol.110(1-4), pp.44-49
2011
Abstract
Electrolytic manganese dioxide (EMD) was prepared from manganese cake, which is an oxide material and byproduct obtained during processing of manganese nodules. Manganese cake dissolution was carried out in sulfuric acid media using waste newspaper as a reductant. In the two-stage purification of leach liquor iron was initially removed by pH adjustment using lime slurry followed by sulfide precipitation using sodium sulfide. Effects of current density, Mn(II) and sulfuric acid concentrations were studied during the electrodeposition of EMD from purified solution. The EMD obtained was characterized by XRD, SEM and its discharge capacity was determined. The XRD pattern demonstrated that EMD was a mixture of γ- and ε-variety. The EMD produced from manganese cake showed a discharge capacity of 290 mAh/g, which is industrially acceptable.
Details
- Title
- Preparation and characterization of EMD from manganese cake — A byproduct of manganese nodule processing
- Authors/Creators
- A. Biswal (Author/Creator)K. Sanjay (Author/Creator)M.K. Ghosh (Author/Creator)T. Subbaiah (Author/Creator)B.K. Mishra (Author/Creator)
- Publication Details
- Hydrometallurgy, Vol.110(1-4), pp.44-49
- Publisher
- Elsevier BV
- Identifiers
- 991005543309507891
- Copyright
- © 2011 Elsevier Inc
- Murdoch Affiliation
- Murdoch University
- Language
- English
- Resource Type
- Journal article
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- Citation topics
- 7 Engineering & Materials Science
- 7.229 Mineral & Metal Processing
- 7.229.774 Bioleaching
- Web Of Science research areas
- Metallurgy & Metallurgical Engineering
- ESI research areas
- Materials Science