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Simultaneous DTA-EGA of minerals and natural mineral mixtures

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Abstract

A DTA apparatus has been linked to non-dispersive infrared H2O and CO2 analyzers and an SO2 analyzer based on an electrochemical cell, enabling evolution profiles of these three volatiles to be recorded simultaneously with the DTA curve. Examples are given of the use of the combined DTA-EGA method in the determination of the quantitative mineralogical composition of potential industrial raw materials.

Résumé

On a couplé un appareil d'analyse thermique différentielle avec un spectromètre infrarouge non dispersif pour l'analyse d'H2O et CO2 et avec une cellule électrochimique pour l'analyse de SO2, afin d'enregistrer simultanément la courbe ATD et le profil de dégagement de ces trois composés volatils. On donne des exemples d'application de ce couplage dans la détermination de la composition minéralogique quantitative de matières premières potentielles de l'industrie.

Zusammenfassung

Ein DTA-Gerät wurde mit nicht-dispersiven Infrarot-Analysatoren für H2O und CO2 sowie mit einem auf einer elektrochemischen Zelle beruhenden SO2-Analysator gekoppelt, welche die gleichzeitige Registrierung der Entwicklungsprofile dieser drei flüchtigen Substanzen und der DTA-Kurve gestatten. Beispiele zum Einsatz der kombinierten DTA-EGA-Methode bei der Bestimmung der quantitativen mineralogischen Zusammensetzung potentieller Rohstoffe der Industrie werden gegeben.

Резюме

ДТА прибор был соедин ен с не диспергирующи ми инфракрасными анали заторами H2O и СО2, а такж е с каким-либо SO2 анализ атором на основе электрохим ической ячейки, что давало воз можность снимать про фильное выделение этих трех л етучих веществ одновременно с криво й ДТА. Даны примеры исп ользования комбинированного ДТ А-ЕГА метода при определен ии количественного минералогического с остава потенциально промышленных сырьев ых материалов.

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Authors and Affiliations

  1. Institute of Geological Sciences, 64/78 Gray's Inn Road, WC1X 8NG, London, UK

    D. J. Morgan

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  1. D. J. Morgan
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Morgan, D.J. Simultaneous DTA-EGA of minerals and natural mineral mixtures. Journal of Thermal Analysis 12, 245–263 (1977). https://doi.org/10.1007/BF01909481

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  • DOI: https://doi.org/10.1007/BF01909481

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