Chemical analysis of argon-oxygen decarburization slags in stainless steelmaking process by X-ray fluorescence spectrometry

Sung Mo Jung, Il Sohn, Dong Joon Min

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

A quantitative analysis method of fluorine in the slags produced in the stainless argon-oxygen decarburization (AOD) process by X-ray spectrometry was proposed employing direct analysis technique by pressed pellet. This research investigated the separate quantification of calcium fluoride and calcium oxide contained in AOD slags. X-ray diffraction measurement was performed to identify the stable phase of fluorine compound, which is primarily present in the slags. The synthetic standards prepared in laboratory were used to construct the X-ray fluorescence (XRF) calibration curves for F, CatO, SiO2, MgO, Al2O3 and Cr2O3, considering the matrix effects and line overlap corrections (t: total). The calibration curves were tested by the quantitative analysis of synthetic standards with satisfactory precision and accuracy. The proposed method might be an alternative solution to the problem with the simple and routine chemical analyses of calcium fluoride in AOD slags of stainless steelmaking process by XRF spectrometry.

Original languageEnglish
Pages (from-to)311-317
Number of pages7
JournalX-Ray Spectrometry
Volume39
Issue number5
DOIs
Publication statusPublished - 2010 Sep 1

All Science Journal Classification (ASJC) codes

  • Spectroscopy

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