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Show simple item record Mukongo, T Maweja, K Wa Ngalu, B Mutombo, I Tshilombo, K 2009-10-13T13:04:44Z 2009-10-13T13:04:44Z 2009
dc.identifier.citation Mukongo, T, Maweja, K, Wa Ngalu, B et al. 2009. Zinc recovery from the water-jacket furnace flue dusts by leaching and electrowinning in a SEC-CCS cell. Hydrometallurgy, Vol. 97(1-2). pp 53-60 en
dc.identifier.issn 0304-386X
dc.description Copyright: 2009 Elsevier. This is the author's version of the work. It is posted here by permission of Elsevier for your personal use. Not for redistribution. The definitive version was published in the journal, Hydrometallurgy, Vol. 97(1-2), pp 53-60 en
dc.description.abstract Zinc containing flue dusts generated during a copper matter smelting process in a water-jacket furnace was leached in a zinc electro winning return solution at 55 °C. Ninety percent of the metal was dissolved after 2 h of treatment. The leaching residues contained near 43 wt.% PbSO4. Iron was removed from leaching solutions by precipitation using a saturated lime solution at pH 3–4. The precipitate formed mainly consisted of gypsum CaSO4.2H2O. Iron and magnesium co-precipitated into a chloro-hydroxide compound. No zinc compound had co-precipitated during iron removal. Copper and germanium contents lower than 10 mg/l were achieved by solvent extraction using 10% LIX 64N and cementation. Cobalt contents lower than 1 mg/l in the solution were achieved by cementation on zinc granules for 2 h at 72 to 82 °C in presence of antimony. Cadmium contents of solutions were reduced to 10 mg/l by cementation on zinc granules at room temperature. Electrons transfer regime was identified as a limiting step during zinc electrolysis in a symmetric electrolysis current–continuous circulating system, SEC-CCS. Electrolysis current efficiency higher than 94% and 3.5 kWh/ kg of specific energy consumption was achieved under 500–600 A/m2 at 35 to 40 °C in the presence of gelatine. en
dc.language.iso en en
dc.publisher Elsevier en
dc.subject Zinc en
dc.subject Flue dusts en
dc.subject Copper matter smelting process en
dc.subject Water-jacket furnace en
dc.subject SEC-CCS cell en
dc.subject Leaching solution en
dc.subject Electron transfer regime en
dc.subject Purification en
dc.subject Electrolysis en
dc.subject Hydrometallurgy en
dc.title Zinc recovery from the water-jacket furnace flue dusts by leaching and electrowinning in a SEC-CCS cell en
dc.type Article en

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