A new methodical approach based on Compton scattering and XRF: quantitative analysis of CO2 and loss on ignition in quicklime. Issue 2 (20th May 2015)

• Record Type: Journal Article
• Authors: Inoue, Minoru; Yamada, Yasujiro; Kitamura, Mao; Gotoh, Norifumi; Kawahara, Naoki; Mantler, Michael
• Is Part Of: Powder diffraction. Volume 30:Issue 2(2015)
• Page Start: 113
• Page End: 116
• Publication Date: 2015-05-20
• Subjects: Powder metallurgy -- Periodicals; Materials -- Analysis -- Periodicals; 620.1127
• DOI: 10.1017/S0885715615000275
• Languages: English
• ISSNs: 0885-7156

Abstract

<abstract abstract-type="normal"> <title> <x content-type="archive" xml:space="preserve">Abstract</x> </title> <p>The authors present and discuss a method for simultaneous quantitative analysis of total loss on ignition (LOI) (CO₂ + H₂O) and CO₂ content separate from the LOI, in an industrial environment of quicklime production. Total LOI is determined by the Compton scattered Rh<italic>Kα</italic> tube radiation which is used directly in the calibration equation. The resulting calibration curve for LOI, including matrix correction shows an accuracy of 0.15 mass%. The carbon content (CO₂) is distinguished from total LOI by measuring C<italic>Kα</italic> radiation, which is possible with the required accuracy by employing a new multilayer analyzer with greatly improved background characteristics. The method aims at high reliability and sample throughput and at becoming a less time-consuming alternative to the conventional method of LOI determination by weighing sequences before and after "ignition" at 1050 °C.</p> </abstract>