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Zinc is present in electric arc furnace dust (EAFD) mainly in two basic minerals, namely as franklinite ZnFe2O4 and/or zincite ZnO. While zincite is relatively reactive and easily treatable, franklinite is considerably refractory, which causes problems during EAFD processing. In this work EAFD containing 18.53% Zn was leached in water solution of ammonium carbonate. This leaching solution selectively leaches zincite, while franklinite is refractory and stable against leaching in this case. The temperature dependence of zinc leaching from EAFD was studied and the activation energy EA was determined by two methods: 1.) classically based on zinc chemical analyses from the leaching solution and 2.) by using of X-Ray diffraction qualitative phase analyses of leaching residues. The determined values of activation energies 37.41 and 38.55 kJmol-1 match perfectly, which show the excellent possibility of using X-Ray diffraction toward the study of leaching kinetics at properly chosen experimental conditions. The important result is the determination of the amount zincite and franklinite in EAFD, which is not possible by using of classical chemical methods.
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Tom
Strony
653--658
Opis fizyczny
Bibliogr. 18 poz., rys., tab., wzory
Twórcy
autor
- Technical University of Kosice, Metallurgical Faculty, Institute of Recycling Technologies, Letna 9, 04200 Kosice, Slovakia
autor
- Technical University of Kosice, Metallurgical Faculty, Institute of Recycling Technologies, Letna 9, 04200 Kosice, Slovakia
- ZP Research and Development Centre, Kolkaren 35, 97681 Podbrezova, Slovakia
autor
- Technical University of Kosice, Metallurgical Faculty, Institute of Recycling Technologies, Letna 9, 04200 Kosice, Slovakia
Bibliografia
- [1] https://www.worldsteel.org/dms/internetDocumentList/bookshop/2015/World-Steel-in-Figures-2015/document/World%20Steel%20in%20Figures%202015.pdf
- [2] http://www.globalsteeldust.com/steel_dust_recycling.
- [3] http://ww.brederoshaw.com/non_html/techpapers/BrederoShaw_TP_GSC_Nov2009.pdf
- [4] http://www.statista.com/statistics/264878/world-production-of-zinc-metal/
- [5] D. K. Xia, C. A. Pickles, Minerals Engineering 13(1), 79-94 (2000).
- [6] M. K. Jha, V. Kumar, R. J. Singh, Resources Conservation and Recycling 33, 1-22 (2001).
- [7] T. Havlik, F. Kukurugya, D. Orac, Ľ. Parilak, A. Miskufova, Z. Takacová, Erzmetall 65 (1), 48-56 (2012).
- [8] F. Kukurugya, Hydrometallurgical Treatment of Electric ARC Furnace Dust. PhD. Thesis, Technical University of Kosice, Kosice, (2014).
- [9] J. Antrekowitsch, G. Rosler, S. Steinacker, Chem. Ing. Tech. 87 (11), 1498-1503 (2015).
- [10] https://www.google.de/search?q=REDSMELT+process&ie=utf-8&oe=utf-8&gws_rd=cr&ei=OesoVq6iKYW4aaPRg6AG#q=PRIMUS+process
- [11] http://ispatguru.com/fastmet-and-fastmelt-processes-of-ironmaking/
- [12] H. Jalkanen, H. Oghbasilasie, K. Raipala, J. of Mining and Metall. 41 (B), 1-16 (2005).
- [13] F. A. López, A. López-Delgado, J. of Environmental Eng. 128 (12), 1169-1174 (2002).
- [14] US Patent 2,603,554, June 1, 1948.
- [15] V. Montenegro, S. Agatzini-Leonardou, P. Oustadakis, P. Tsakiridis, Hydrometallurgical Treatment of EAF Dust by Direct Sulphuric Acid Leaching at Atmospheric Pressure, Waste and Biomass Valorization 6, 1531-1548 (2016).
- [16] T. Havlik, F. Kukurugya, A. Miskufova, L. Parilak, Sustainable Industrial Processing Summit & Exhibition, Antalya 2015.
- [17] T. Havlik, Hydrometallurgy Principles and Applications, CRC Press Cambridge (2008).
- [18] C. Jarupisitthorn, T. Pimtong, G. Lothongkum, Investigation of kinetics of zinc leaching from electric arc furnace dust by sodium hydroxide, Materials Chemistry and Physics 77, 531-535 (2002).
Uwagi
EN
This publication is the result of the Project implementation: University Science Park TECHNICOM for Innovation Applications Supported by Knowledge Technology, ITMS: 26220220182, supported by the Research & Development Operational Programme funded by the ERDF. This publication is the result of the project implementation Research excellence centre on earth sources, extraction and treatment, which was supported by the Research & Development Operational Programme funded by the ERDF, ITMS: 26220120017. This work was supported by the Slovak Research and Development Agency under the contract No. APVV-14-0591. This work was supported by Ministry of Education of the Slovak Republic under grant VEGA MŠ SR 1/0293/14.
PL
Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2018).
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-a16452f9-a8b3-43dc-a551-cd656b74b52b