Quantitative Analysis of Pig Iron from Steel Industry by Handheld Laser-Induced Breakdown Spectroscopy and Partial Least Square (PLS) Algorithm

Applied Sciences

Olga De Pascale¹  GiorgioS. Senesi¹  BrunoS. Marangoni²  Aldo Bove³ 

[1] Istituto per la Scienza e Tecnologia dei Plasmi (ISTP-CNR)-Sede di Bari, 70126 Bari, Italy;Physics Institute, Federal University of Mato Grosso do Sul, Campo Grande, MS 79070-900, Brazil;Primary and Environmental Laboratories, ArcelorMittal Italia S.p.A., Taranto Steelworks, 74123 Taranto, Italy;

关键词: handheld LIBS;    pig iron;    steel;    PLS;   

DOI  :  10.3390/app10238461

来源: DOAJ

【 摘 要 】

One of the main objectives in the steel production process is to obtain a blast furnace pig iron of good quality and at the lowest possible cost. In general, the quality of pig iron is evaluated on the basis of its chemical composition determined by X-ray fluorescence laboratory equipment. In the present study, the performance of a handheld (h) laser-induced breakdown spectroscopy (LIBS) instrument in the identification and the quantification of the relevant elements C, Mn, P, Si, and Ti in forty-six blast furnace pig iron samples was tested successfully. The application of two different models, i.e., univariate and multivariate partial least square (PLS) calibration and validation, to the whole LIBS data set showed that the latter approach was much more efficient than the former one in quantifying all elements considered, especially Si and Ti.

【 授权许可】

Unknown