Leaching of zinc from calcined smithsonite using sodium hydroxide
Article
Article Title | Leaching of zinc from calcined smithsonite using sodium hydroxide |
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ERA Journal ID | 4717 |
Article Category | Article |
Authors | Zhang, Yucheng (Author), Deng, Jinxia (Author), Chen, Jun (Author), Yu, Ranbo (Author) and Xing, Xianran (Author) |
Journal Title | Hydrometallurgy |
Journal Citation | 131-132, pp. 89-92 |
Number of Pages | 4 |
Year | 2013 |
Place of Publication | Netherlands |
ISSN | 0304-386X |
1879-1158 | |
Digital Object Identifier (DOI) | https://doi.org/10.1016/j.hydromet.2012.10.007 |
Web Address (URL) | http://www.sciencedirect.com/science/article/pii/S0304386X12002241?via%3Dihub |
Abstract | The processes of calcination and alkaline leaching were applied to treat a zinc oxide ore, smithsonite (ZnCO3). The phase evolution in the calcination was studied, as well as the effect factors on the leaching rate of Zn, such as calcination temperature, alkaline concentration, phase ratio of liquid to solid (L/S), leaching temperature and leaching time. It was found that the ZnCO3 had completely decomposed into ZnO when calcined for 2 h at 400 °C and the Zn leaching rate of ores calcined at 400 °C could be over 92% with 20% (6.25 mol/L) sodium hydroxide and a phase ratio of 80:1 for 4 h at 100 °C. |
Keywords | Alkaline leaching; Calcination; Leaching rate; Phase evolution; Smithsonite; Calcination temperature; Effect factors; Leaching rates; Phase evolutions; Sodium hydroxides; Zinc oxide ores; Zinc and Alloys; |
ANZSRC Field of Research 2020 | 401903. Hydrometallurgy |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | University of Science and Technology Beijing, China |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q4282/leaching-of-zinc-from-calcined-smithsonite-using-sodium-hydroxide
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