The Influence of Dielectric Properties on Heating of Sulphide Ores in Electromagnetic Field

• Autorzy: Znamenackova Ingrid , Dolinska Silvia , Lacik Jaroslav , Hredzak Slavomir , Briancin Jaroslav

Identyfikatory

DOI

10.29227/IM-2024-01-06

Warianty tytułu

PL

Wpływ właściwości dielektrycznych na ogrzewanie rud siarczkowych w polu elektromagnetycznym

• Języki publikacji: EN

Abstrakty

EN

Microwave heating is a form of high-frequency electromagnetic radiation. The heating of primary and secondary mineral raw materials in the microwave field depends primarily on their dielectric and thermal properties. The condition is the absorption of microwave radiation. Dielectric heating of materials occurs immediately after placing them in an electric high-frequency field. Knowledge of the dielectric characteristics of mineral raw materials is an important assumption for the use of electromagnetic radiation at the intensification of technological treatment methods. Most mined minerals consist of several mineral components that have different dielectric properties. Most sulphides are well heated in a microwave field. Conversely, tailings components of ores, such as quartz, are transmission materials. The study of dielectric properties involves measurements of the complex relative permittivity ε*, which consists of a real and an imaginary part. The imaginary part of permittivity “loss factor” represents the measure of dielectric losses in the material. Microwave heating of sulphide ores and concentrates such are chalcopyrite, tetrahedrite, galena depends on their chemical composition and content of impurities. The article describes the influence of dielectric properties on heating of chalcopyrite in microwave field. SEM analyses of studied samples are presented.

Słowa kluczowe

EN

dielectric properties; heating; sulphide ores; electromagnetic field

PL

właściwości dielektryczne; ogrzewanie; rudy siarczkowe; pole elektromagnetyczne

• Wydawca: Polskie Towarzystwo Przeróbki Kopalin
• Czasopismo: Inżynieria Mineralna
• Rocznik: 2024
• Tom: Vol. 1, no. 1
• Strony: 43--49
• Opis fizyczny: Bibliogr. 13 poz., wykr., zdj.

Twórcy

autor

Znamenackova Ingrid

• Institute of Geotechnics of the Slovak Academy of Sciences, Watsonova 45, 040 01 Košice, Slovak Republic

• https://orcid.org/0000-0002-1705-7607

autor

Dolinska Silvia

• Institute of Geotechnics of the Slovak Academy of Sciences, Watsonova 45, 040 01 Košice, Slovak Republic

• https://orcid.org/0000-0003-4650-2922

autor

Lacik Jaroslav

• Brno University of Technology, Faculty of Electrical Engineering an Communication, Technická 12, 616 00 Brno, Czech Republic

• https://orcid.org/0000-0002-8010-6977

autor

Hredzak Slavomir

• Institute of Geotechnics of the Slovak Academy of Sciences, Watsonova 45, 040 01 Košice, Slovak Republic

• https://orcid.org/0000-0001-6802-9684

autor

Briancin Jaroslav

• Institute of Geotechnics of the Slovak Academy of Sciences, Watsonova 45, 040 01 Košice, Slovak Republic

• https://orcid.org/0000-0001-9195-507X

Bibliografia

• 1. O. Lin, M. Shunda and S. Guo, “Recovery of metals and rare earth elements by microwave heating technology - A review,” Current Microwave Chemistry, vol. 7, no. 3, 2020, pp. 196-206, 2020.
• 2. B. Sabzezari, S.M. Koleini, S. Ghassa, B. Shahbazi and S. Chehreh Chelgani, “Microwave-leaching of copper smelting dust for Cu and Zn extraction,” Materials, vol. 12, no. 11, 1822, 2019.
• 3. H.J. Kitchen, S.R. Vallance, J.L. Kennedy, N. Tapia-Ruiz, L. Carassiti, A. Harrison, A.G. Whittaker, T.D. Drysdale, S.W. Kingman and D.H. Gregory, “Modern microwave methods in solid-state inorganic materials chemistry: from fundamentals to manufacturing,” Chem. Rev., vol. 114, pp. 1170-1206, 2014.
• 4. Y. Bai, W. Wang, K. Dong, F. Xie, D. Lu, Y. Changm and K. Jiang, “Effect of microwave pretreatment on chalcopyrite dissolution in acid solution”. Journal of Materials Research and Technology, vol. 16, pp. 471-481, 2022.
• 5. I. Znamenackova, S. Dolinska, M. Lovas, S. Hredzak, M. Matik, J. Tomcova and V. Cablik, “Application of microwave energy at treatment of asbestos cement (eternit),” IOP Conference Series: Earth and Environmental Science, vol. 44, series 052023, 2016.
• 6. I. Znamenackova, S. Dolinska, M. Lovas, S. Hredzak and G. Dimitrakis, “Utilization of microwave radiation at the heating of magnesite,” Inżynieria Mineralna – Journal of the Polish Mineral Engineering Society, vol. 15, no. 1, pp. 175-182, 2014.
• 7. S. Dolinska, I. Znamenackova, M. Lovas, L. Cablikova and S. Hredzak, “Application of microwave radiation at coal treatment,” Inżynieria Mineralna – Journal of the Polish Mineral Engineering Society, vol. 15, no. 2, pp. 73-78, 2014.
• 8. V.V. Tikhonov, O.N. Polyakova and G.N Gol'tsman, “Determination of dielectric properties of ore minerals in the microwave band,” Radiophys Quantum, EI 51, pp. 966-974, 2008.
• 9. S.O. Nelson and P.G. Bartley, “Estimating properties of solid from permittivity measurement on pulverized samples,” Proc. of the Conf. Microwave and High Frequency Heating 1997, Fermo, pp. 488-491, 1987.
• 10. J. Láčik, „Acceleration of marching on in time method for TD-EFIE by equivalent dipole moment method and its analysis,“ Radioengineering, vol. 20, no. 3, pp. 569-574, 2011.
• 11. P. Kadera, J. Lacik, and H. Arthaber, “Effective Relative Permittivity Determination of 3D Printed Artificial Dielectric Substrates Based on a Cross Unit Cell” Radioengineering, vol. 30, no. 4, pp. 595-610, 2021.
• 12. J. Fojtík, “Measurement of permittivity materials in microwave band,” Brno University of Technology, Faculty of electrical engineering and communation, Department of radio electronic. Bachelor’s thesis, supervisor: J. Láčik, 33 p., 2012.
• 13. I. Ryba, “Permittivity measurement of materials by coax probe,” Brno University of Technology, Faculty of electrical engineering and communation, Department of radio electronic. Master's thesis, supervisor: J. Láčik, 48 p., 2015.

Uwagi

Opracowanie rekordu ze środków MNiSW, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2024).