How to Cite
Downloads
Métricas Alternativas
Dimensions
Abstract
This article shows the morphological, structural and magnetic properties of the black sand on the surface soil obtained in the Guajira-Colombia. Morphological characterization of samples is performed by SEM. The compositional analysis of the compounds and elements was carried out through the XRF technique and by applying the Rietveld method to the X-ray diffraction data by quantifying the polycrystalline phases present in the sample such as ilmenite and magnetite. Magnetic characterization was performed by obtaining the hysteresis curve of magnetization as a function of applied fields at 300K temperature. Results evidence a ferromagnetic behavior of sample with magnetic parameters that permit to discuss the origin of magnetic character in the black sands. From heat treatments on air at different temperatures, the present magnetic phases are studied in order to determine the possibility obtaining of a single phase.
Keywords
References
M. Klepka, K. Lawniczak-Jablonska, M. Jablonski, A. Wolska, R. Minikayev, W. Paszkowicz, A. Przepiera, Z. Spolnik, R. Van Grieken, (2005), Combined XRD, EPMA and X-ray absorption study of mineral ilmenite used in pigments production. Journal of Alloys and Compounds. Volume 401, Issues 1-2, Pages 281-288.
M. Muta'alim, (2009). Characterization of prereduced iron sand concentrate pellet with coal. IRAM, International journal of science environment and technology, Volume 21, pp., 712.
www.googlemaps.com.
A.A. Surour, A.A. El-Kammar, E.H. Arafa, H.M. Korany, J. of Geochem. Explor. (2003), Dahab stream sediments, southeastern Sinai, Egypt: a potential source of gold, magnetite and zircon. Journal of Geochemical Exploration. Volume 77, Issue 1, Pages 25-43.
T. Taboada, A. Martínez Cortizas, C. García, E. Gan;ía-Rodeja, (2006), Particle-size fractionation of titanium and zirconium during weathering and pedogenesis of granitic rocks in NW Spain. Geoderma. Volume 131, Issues 1-2, Pages 218-236.
R. Luo, Li-qun. (2012), Characterization and technology of fast reducing roasting for fine iron materials. J. Cent. South Univ. Volume 19, pp., 2272-2278.
M.C. Morris, et al., Natl. Bur. Stand. (U.S.) Monograph 25, 15(1978) 34 (ICDD database Ref. 29-0733)
M.C. Morris, et al., Natl. Bur. Stand. (U.S.) Monograph 25, 18 (1981) 37 (ICDD database Ref. 33-0665).
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.