Combined control of aluminum bath composition by X‐ray diffraction and X‐ray fluorescence analysis
DOI:
10.1002/xrs.2774URI (для ссылок/цитирований):
http://onlinelibrary.wiley.com/doi/10.1002/xrs.2774/epdfhttps://elib.sfu-kras.ru/handle/2311/69676
Автор:
Oksana, Piksina
Eugene, Andruschenko
Petr, Dubinin
Sergey, Kirik
Sergey, Ruzhnikov
Alexandr, Samoilo
Igor, Yakimov
Alexandr, Zaloga
Коллективный автор:
Институт цветных металлов и материаловедения
Кафедра композиционных материалов и физико-химии металлургических процессов
Дата:
2017-09Журнал:
X‐Ray Spectrom.Квартиль журнала в Scopus:
Q2Квартиль журнала в Web of Science:
Q3Библиографическое описание:
Oksana, Piksina. Combined control of aluminum bath composition by X‐ray diffraction and X‐ray fluorescence analysis [Текст] / Piksina Oksana, Andruschenko Eugene, Dubinin Petr, Kirik Sergey, Ruzhnikov Sergey, Samoilo Alexandr, Yakimov Igor, Zaloga Alexandr // X‐Ray Spectrom.. — 2017.Текст статьи не публикуется в открытом доступе в соответствии с политикой журнала.
Аннотация:
The present paper provides a combined application of X‐ray diffraction (XRD) and X‐ray fluorescence (XRF) methods in process
control for the analysis of aluminum baths of different compositions. Developed approaches to the combined calibration XRD
and XRF methods, independent calibration XRF techniques and to the full‐profile automated Rietveld analysis of a bath
composition are described.
We established that combined XRD–XRF calibration techniques provide an accurate stable analysis of technological parameters
in a wide range of traditional and low‐melting compositions due to an accurate quantification of CaF2, MgF2 and KF additives. The
developed XRF techniques provide quantitative analysis of both cryolite ratio and aluminawith the accuracy of 0.03 and 0.25%wt.
respectively, which is comparable with the technologically required accuracy.
The evolutionary approach that automates full profile quantitative XRD analysis of bath composition and uses XRF data on Ca
and Mg provides a better accuracy of measuring cryolite ratio compared to an accuracy of non‐automated analysis by Rietveld
method.
Combined application of the two X‐ray methods eliminates gross analytical errors and stabilizes overall performance of a
smelter’s process control system. Copyright © 2017 John Wiley & Sons, Ltd.