Determination of Components in Chromium-Containing Refractory with X-Ray Fluorescence Spectrometry
SONG Xia1, ZHANG Shao-wen1*, ZHANG Jun2
1. Department of Environmental Engineering & Chemistry, Luoyang Institute of Science & Technology, Luoyang 471023, China 2. School of Chemical Engineering & Pharmacy, Henan University of Science & Technology, Luoyang 471003, China
Abstract：Components like SiO2, Al2O3, Fe2O3, CaO, MgO and Cr2O3 dominate the performance of chromium-containing amorphous refractory. That’s still a hard task for product evaluation and quality control for amorphous refractory due to various component content, less available standard product and difficulty in fusion bead preparation. In the present study, series calibration standards were made from reagents and marked standards depend upon the content of components in real samples. The fusion bead was prepared with lithium tetraborate-lithium metaborate (67∶33 by weight) as mixed flux and ammonium iodide as release agent, which was added during fusion process. The calibration curve derivated from the relationship between light intensity and components concentration and calibrated by theoretical α coefficient. The results of measurement were consistent with standard by this newly developed method. And good precision was also achieved in determination of real amorphous samples. It is easy in operation with less time spent, and practical in application.
[1] The Group of Refractory Standard Collection(耐火材料标准汇编组编). Collection of Refractory Standard(耐火材料标准汇编). Beijing: The Standard Press of China(北京：中国标准出版社), 2003. 523. [2] Gazulla M F, Gomez M P, Barba A, et al. X-Ray Spectrom., 2004, 33: 421. [3] Gazulla M F, Gomez M P, Orduna M, et al. X-Ray Spectrom., 2010, 39: 267. [4] ZHANG Dongfang, ZENG Fanbin. Applied Surface Science, 2010, 257: 867. [5] Gazulla M F, Gomez M P, Orduna M, et al. Journal of the European Ceramic Society, 2006, 26: 3451. [6] Asakura H, Ikegami K, Murata M, et al. X-Ray Spectrom., 2000, 29: 418. [7] SONG Zu-feng, KAN Bin, CHEN Jian(宋祖峰, 阚 斌, 陈 健). Physical Testing and Chemical Analysis(理化检测), 2005, 41(9): 648. [8] LU Xiao-ming, TAI Li, JIN De-long(陆晓明, 邰 力, 金德龙). Refractory(耐火材料), 2006, 40(3): 231.
