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Barani, K., Azghadi, M., Azadi, M., Karrech, A. (2019). Influence of microwave treatment on surface roughness, hydrophobicity, and chemical composition of galena. Journal of Mining and Environment, 10(3), 787-797. doi: 10.22044/jme.2019.8390.1719
K. Barani; M. Azghadi; M. R. Azadi; A. Karrech. "Influence of microwave treatment on surface roughness, hydrophobicity, and chemical composition of galena". Journal of Mining and Environment, 10, 3, 2019, 787-797. doi: 10.22044/jme.2019.8390.1719
Barani, K., Azghadi, M., Azadi, M., Karrech, A. (2019). 'Influence of microwave treatment on surface roughness, hydrophobicity, and chemical composition of galena', Journal of Mining and Environment, 10(3), pp. 787-797. doi: 10.22044/jme.2019.8390.1719
Barani, K., Azghadi, M., Azadi, M., Karrech, A. Influence of microwave treatment on surface roughness, hydrophobicity, and chemical composition of galena. Journal of Mining and Environment, 2019; 10(3): 787-797. doi: 10.22044/jme.2019.8390.1719

Influence of microwave treatment on surface roughness, hydrophobicity, and chemical composition of galena

Article 18, Volume 10, Issue 3, Summer 2019, Page 787-797  XML PDF (4.52 MB)
Document Type: Original Research Paper
DOI: 10.22044/jme.2019.8390.1719
Authors
K. Barani email 1; M. Azghadi1; M. R. Azadi2; A. Karrech2
1Department of Mining Engineering, Lorestan University, Khorramabad, Iran
2School of Civil, Mining, and Environmental Engineering, University of Western Australia, Crawley, WA 6000
Abstract
The influence of microwave treatment on the surface roughness, hydrophobicity, and chemical composition of galena was studied. The pure galena specimens and purified galena concentrate were used in this work. A conventional multi-modal oven (with a frequency of 2.45 GHz and a maximum power of 900 W) was used to conduct the experiments. The results obtained from the atomic-force microscopy analysis showed that the surface roughness of galena decreased after the microwave radiation. The results also showed that the surface hydrophobicity of galena increased with increase in the duration of the microwave radiation, which was in good agreement with the micro-flotation mass recovery results. The increased surface hydrophobicity may be attributed to the decreased surface roughness by microwave radiation or formation of sulfur on the surface. The results of the SEM/EDS analyses indicated that after microwave radiation, the amount of S increased, whereas Pb decreased on the surface of galena, indicating that the average atomic number of the galena surface changed due to microwave treatment.
Keywords
Galena; Microwave Radiation; Surface Roughness; Surface Wettability; Flotation
Main Subjects
Mineral Processing
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