Bauxite is the primary ore for aluminum extraction. In order to assess the quality of bauxite, it is important to determine not only the content of Al2O3 but the content of Fe2O3 as well. Determining the composition of bauxite is very important from the aspect of determining the quality of bauxite. Therefore, it is important to use a method that is fast, accurate, and precise. In this paper the results of the comparison of two methods are presented. Bauxites of different deposits were analysed for their content of Fe2O3 (mass %), using the X-ray fluorescence spectrometry and reference spectrophotometric method MA. B. M.018. The samples were annealed prior to the process, and beads were prepared by pressing for the purpose of the analysis. Certified reference samples of bauxite were used for producing a calibration curve. The equation for calculating the content of Fe2O3 (mass %) in the samples of bauxite was derived from the calibration curve, which was obtained with the coefficient of correlation r = 0.9989 and the standard deviation S = 3.4420. The XRF method was statistically verified by the F-test and t-test (using the standard sample of the bauxite and the reference method). The values obtained from the mentioned tests showed that the XRF method was imprecise and inaccurate for determination of iron oxide in bauxite, when the samples was prepared by pressing.
| Published in | Science Journal of Chemistry (Volume 6, Issue 6) |
| DOI | 10.11648/j.sjc.20180606.12 |
| Page(s) | 108-114 |
| Creative Commons |
This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited. |
| Copyright |
Copyright © The Author(s), 2019. Published by Science Publishing Group |
Bauxite, Iron-oxide, Pressing, Standard Method, XRF Method
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APA Style
Dragana Blagojevic, Dragica Lazic, Dragana Keselj, Zoran Obrenovic, Gordana Ostojic. (2019). Determination of Iron Oxide Content in Bauxites Using X-Ray Fluorescence Spectrometry by Pressing: A Comparative Study with Spectrophotometric Method. Science Journal of Chemistry, 6(6), 108-114. https://doi.org/10.11648/j.sjc.20180606.12
ACS Style
Dragana Blagojevic; Dragica Lazic; Dragana Keselj; Zoran Obrenovic; Gordana Ostojic. Determination of Iron Oxide Content in Bauxites Using X-Ray Fluorescence Spectrometry by Pressing: A Comparative Study with Spectrophotometric Method. Sci. J. Chem. 2019, 6(6), 108-114. doi: 10.11648/j.sjc.20180606.12
AMA Style
Dragana Blagojevic, Dragica Lazic, Dragana Keselj, Zoran Obrenovic, Gordana Ostojic. Determination of Iron Oxide Content in Bauxites Using X-Ray Fluorescence Spectrometry by Pressing: A Comparative Study with Spectrophotometric Method. Sci J Chem. 2019;6(6):108-114. doi: 10.11648/j.sjc.20180606.12
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Download@article{10.11648/j.sjc.20180606.12,
author = {Dragana Blagojevic and Dragica Lazic and Dragana Keselj and Zoran Obrenovic and Gordana Ostojic},
title = {Determination of Iron Oxide Content in Bauxites Using X-Ray Fluorescence Spectrometry by Pressing: A Comparative Study with Spectrophotometric Method},
journal = {Science Journal of Chemistry},
volume = {6},
number = {6},
pages = {108-114},
doi = {10.11648/j.sjc.20180606.12},
url = {https://doi.org/10.11648/j.sjc.20180606.12},
eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.sjc.20180606.12},
abstract = {Bauxite is the primary ore for aluminum extraction. In order to assess the quality of bauxite, it is important to determine not only the content of Al2O3 but the content of Fe2O3 as well. Determining the composition of bauxite is very important from the aspect of determining the quality of bauxite. Therefore, it is important to use a method that is fast, accurate, and precise. In this paper the results of the comparison of two methods are presented. Bauxites of different deposits were analysed for their content of Fe2O3 (mass %), using the X-ray fluorescence spectrometry and reference spectrophotometric method MA. B. M.018. The samples were annealed prior to the process, and beads were prepared by pressing for the purpose of the analysis. Certified reference samples of bauxite were used for producing a calibration curve. The equation for calculating the content of Fe2O3 (mass %) in the samples of bauxite was derived from the calibration curve, which was obtained with the coefficient of correlation r = 0.9989 and the standard deviation S = 3.4420. The XRF method was statistically verified by the F-test and t-test (using the standard sample of the bauxite and the reference method). The values obtained from the mentioned tests showed that the XRF method was imprecise and inaccurate for determination of iron oxide in bauxite, when the samples was prepared by pressing.},
year = {2019}
}
TY - JOUR T1 - Determination of Iron Oxide Content in Bauxites Using X-Ray Fluorescence Spectrometry by Pressing: A Comparative Study with Spectrophotometric Method AU - Dragana Blagojevic AU - Dragica Lazic AU - Dragana Keselj AU - Zoran Obrenovic AU - Gordana Ostojic Y1 - 2019/01/02 PY - 2019 N1 - https://doi.org/10.11648/j.sjc.20180606.12 DO - 10.11648/j.sjc.20180606.12 T2 - Science Journal of Chemistry JF - Science Journal of Chemistry JO - Science Journal of Chemistry SP - 108 EP - 114 PB - Science Publishing Group SN - 2330-099X UR - https://doi.org/10.11648/j.sjc.20180606.12 AB - Bauxite is the primary ore for aluminum extraction. In order to assess the quality of bauxite, it is important to determine not only the content of Al2O3 but the content of Fe2O3 as well. Determining the composition of bauxite is very important from the aspect of determining the quality of bauxite. Therefore, it is important to use a method that is fast, accurate, and precise. In this paper the results of the comparison of two methods are presented. Bauxites of different deposits were analysed for their content of Fe2O3 (mass %), using the X-ray fluorescence spectrometry and reference spectrophotometric method MA. B. M.018. The samples were annealed prior to the process, and beads were prepared by pressing for the purpose of the analysis. Certified reference samples of bauxite were used for producing a calibration curve. The equation for calculating the content of Fe2O3 (mass %) in the samples of bauxite was derived from the calibration curve, which was obtained with the coefficient of correlation r = 0.9989 and the standard deviation S = 3.4420. The XRF method was statistically verified by the F-test and t-test (using the standard sample of the bauxite and the reference method). The values obtained from the mentioned tests showed that the XRF method was imprecise and inaccurate for determination of iron oxide in bauxite, when the samples was prepared by pressing. VL - 6 IS - 6 ER -
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