Analyse Quantitative par Spectroscopie Infrarouge a Transformee de Fourier de la Partie Minerale de Charbons. Mise au Point et Application de la Technique
- 1 October 1985
- journal article
- research article
- Published by Taylor & Francis in International Journal of Environmental Analytical Chemistry
- Vol. 22 (3-4) , 297-318
- https://doi.org/10.1080/03067318508076428
Abstract
Nous reportons dans ce mémoire des résultats ďanalyses quantitatives de la matière minérale de charbon du bassin minier de Gardanne (France) par spectroscopie infrarouge a Transformée de Fourier. Les cendres basse température (LTA) sont analysées par soustractions successives de spectres de minéraux de référence prealablement identifiés par diffraction X. Une étude préliminaire sur des mélanges de minéraux purs est présentée. Le problème de ľéchantillonage et du broyage est clairement posé et montre les possibilités et les limites de la technique IRTF. Ľutilisation de minéraux locaux (Argiles grises et dolomite/calcite) permet ľétude des divers sites ďexploitation du bassin de Gardanne. Cette étude préliminaire permet ďenvisager une étude plus complète du site de Gardanne et sera mise en relation avec les procédés de combustion à basse température qui favorisent un piegeage partiel du SO2 sous forme de sulfate. We report in this work quantitative analysis results concerning mineral matter in Gardanne coals (France) using FTIR spectroscopy. The low temperature ashes (LTA) are analysed by successive spectral substractions of reference minerals which are before identified by X-ray diffraction. A preliminary study of several mineral mixtures is reported. The importance of the samples preparation and of the grinding is clearly shown as the possibilities and the limits of the FTIR method. The use of local minerals (clays, calcite/dolomite) allow us to analyse various LTA samples of Gardanne coals. These preliminary results will be useful for a further study of Gardanne coal basin in relation with low temperature combustion process involving partial trapping of SO2 as sulfate.Keywords
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