Iron-Sulphur Compounds of South African Coal

European Journal of Scientific Research (Impact Factor: 0.74). 01/2009; 34(2):1450-216.

ABSTRACT Knowledge of the mineral matter of coal is of great practical importance in the cleaning and utilization of coal. The composition and quantity of iron-sulfur compounds in coal have high priority in the evaluation, processing and commercial specification of coals. In this study, Mössbauer spectroscopy was used to determine the mineral matter and Scanning Electron Microscopy (SEM) was used to determine the non-iron bearing minerals in the coal samples from five coal producing regions of South Africa. The Fe-compounds found in the coal are pyrite, ankerite, illite, and jarosite, with pyrite as the main impurity. The SEM results showed the presence of clay minerals and carbonates.

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May 29, 2014