Reductive acid leaching of spent zinc–carbon batteries and oxidative precipitation of Mn–Zn ferrite nanoparticles

T-H Kim; G. Senanayake; J-G. Kang; J-S. Sohn; K-I. Rhee; S-W. Lee; S-M. Shin

doi:10.1016/j.hydromet.2008.10.001

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Reductive acid leaching of spent zinc–carbon batteries and oxidative precipitation of Mn–Zn ferrite nanoparticles

Journal article

Peer reviewed

Reductive acid leaching of spent zinc–carbon batteries and oxidative precipitation of Mn–Zn ferrite nanoparticles

T-H Kim, G. Senanayake, J-G. Kang, J-S. Sohn, K-I. Rhee, S-W. Lee and S-M. Shin

Hydrometallurgy, Vol.96(1-2), pp.154-158

2009

DOI: https://doi.org/10.1016/j.hydromet.2008.10.001

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Abstract

The non-magnetic 8-mesh undersize material obtained by crushing, magnetic separation and sieving of spent zinc-carbon batteries assayed 23.9% Mn, 14.9% Zn, and 4% Fe. Reductive acid leaching of this material at a solid/liquid ratio of 1:10, and 60 °C with 2 mol dm - 3 H 2SO 4 and 0.39 mol H 2O 2 extracted 97.9% Mn, 98.0% Zn and 55.2% Fe after 60 min. The leach liquor composition was then adjusted to a Mn:Zn:Fe molar ratio of 1:1:4 suitable for producing MnZnFe 4O 8 ferrite powder by adding Mn(II), Zn(II) and Fe(II) sulfates. The effect of pH in the range pH 5-12 on the precipitation of Mn-Zn ferrite powder was investigated over 60 min using O 2 gas flow rate of 1.3 dm 3 min - 1 at 80 °C. The precipitated Mn-Zn ferrite at pH 12 were 20 nm particles that had a spinel structure. The saturation magnetizations of Mn-Zn ferrite powder (Mn 1 - xZn xFe 2O 4) were determined to be 39-91 emu/g with various zinc contents (x = 0.2-0.8).

Details

Title: Reductive acid leaching of spent zinc–carbon batteries and oxidative precipitation of Mn–Zn ferrite nanoparticles
Authors/Creators: T-H Kim (Author/Creator) - Korea Institute of Geoscience and Mineral Resources
G. Senanayake (Author/Creator) - Murdoch University
J-G. Kang (Author/Creator) - Korea Institute of Geoscience and Mineral Resources
J-S. Sohn (Author/Creator) - Korea Institute of Geoscience and Mineral Resources
K-I. Rhee (Author/Creator) - Korea Institute of Geoscience and Mineral Resources
S-W. Lee (Author/Creator) - Chungnam National University
S-M. Shin (Author/Creator) - Korea Institute of Geoscience and Mineral Resources
Publication Details: Hydrometallurgy, Vol.96(1-2), pp.154-158
Publisher: Elsevier BV
Identifiers: 991005543099807891
Murdoch Affiliation: School of Chemical and Mathematical Science
Language: English
Resource Type: Journal article

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Collaboration types: Domestic collaboration; International collaboration
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