Behavior of zinc, iron and calcium from electric arc furnace (EAF) dust in hydrometallurgical processing in sulfuric acid solutions: Thermodynamic and kinetic aspects
作者： F. Kukurugya , T. Vindt , T. Havlík
DOI: 10.1016/J.HYDROMET.2015.03.008
关键词:
摘要: Abstract This work is focused on the behavior of zinc, iron and calcium during leaching EAF dust in sulfuric acid solutions. The influences time, temperature, concentration L:S (Liquid:Solid) ratio extraction were studied. experiments preceded by a thermodynamic study consisting calculations ΔG0 E–pH diagrams Zn–Fe–Ca–S–H2O system. A thorough characterization input sample was performed. highest zinc extraction, 87%, achieved using 1 M H2SO4 at temperature 80 °C 50. From perspective selective where no passing into solution, 0.1 M ratio = 50 0.25 M ratios = 20 10 can be considered as optimal concentrations. calculated values activation energy confirmed different mechanisms calcium. rate limiting step case represented diffusion, while it chemical reaction.
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sci-hub.se 参考文章(18)
P. Oustadakis, P.E. Tsakiridis, A. Katsiapi, S. Agatzini-Leonardou, Hydrometallurgical process for zinc recovery from electric arc furnace dust (EAFD): Part I: Characterization and leaching by diluted sulphuric acid Journal of Hazardous Materials. ,vol. 179, pp. 1- 7 ,(2010) , 10.1016/J.JHAZMAT.2010.01.059
Tomáš Havlík, Hydrometallurgy: Principles and Applications ,(2007)
Fernanda Machado Martins, José Manoel dos Reis Neto, Carlos Jorge da Cunha, Mineral phases of weathered and recent electric arc furnace dust. Journal of Hazardous Materials. ,vol. 154, pp. 417- 425 ,(2008) , 10.1016/J.JHAZMAT.2007.10.041
Anne-Gwénaëlle Guézennec, Jean-Christophe Huber, Fabrice Patisson, Philippe Sessiecq, Jean-Pierre Birat, Denis Ablitzer, Dust formation in Electric Arc Furnace: Birth of the particles Powder Technology. ,vol. 157, pp. 2- 11 ,(2005) , 10.1016/J.POWTEC.2005.05.006
D.K. Xia, C.A. Picklesi, Microwave caustic leaching of electric arc furnace dust Minerals Engineering. ,vol. 13, pp. 79- 94 ,(2000) , 10.1016/S0892-6875(99)00151-X
A. G. Guézennec, J. C. Huber, F. Patisson, Ph. Sessiecq, J. P. Birat, D. Ablitzer, Dust Formation by Bubble-burst Phenomenon at the Surface of a Liquid Steel Bath Isij International. ,vol. 44, pp. 1328- 1333 ,(2004) , 10.2355/ISIJINTERNATIONAL.44.1328
A.J.B. Dutra, P.R.P. Paiva, L.M. Tavares, Alkaline leaching of zinc from electric arc furnace steel dust Minerals Engineering. ,vol. 19, pp. 478- 485 ,(2006) , 10.1016/J.MINENG.2005.08.013
Šárka Langová, Jana Riplová, Silvie Vallová, Atmospheric leaching of steel-making wastes and the precipitation of goethite from the ferric sulphate solution Hydrometallurgy. ,vol. 87, pp. 157- 162 ,(2007) , 10.1016/J.HYDROMET.2007.03.002
J MACHADO, F BREHM, C MORAES, C SANTOS, A VILELA, J CUNHA, Chemical, physical, structural and morphological characterization of the electric arc furnace dust. Journal of Hazardous Materials. ,vol. 136, pp. 953- 960 ,(2006) , 10.1016/J.JHAZMAT.2006.01.044
Šárka Langová, Dalibor Matýsek, Zinc recovery from steel-making wastes by acid pressure leaching and hematite precipitation Hydrometallurgy. ,vol. 101, pp. 171- 173 ,(2010) , 10.1016/J.HYDROMET.2010.01.003