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Ballia, India

Experimental results of the study of the mineralogical characterization of coals by X-Ray differaction and IR are reported. These results suggest that different minerals present as major and minor phases in the coals could be distinctly characterised by X-ray diffractometry. The IR spectroscopy technique has provided additional supplementry informations for the identification of several other mienral species present in the coals which could not be detected by X-ray differation. X-ray diffraction analysis indicates that a-quartz is the major phase in 'Jharia Coals'. However in Bhowrah Coal, apart from quartz, Kaolinite too is in major phase. The minor phases present in these coals, which escaped detection by X-ray diffracton, are illite and per sulphate. Thus, these studies give a clue as to how these coals could be gainfully and efficiently utilised in coal conversion process. Source

Mishra M.K.,Satish Chandra College | Pandey D.P.,Satish Chandra College
Oriental Journal of Chemistry | Year: 2011

Experimental results of the study of the correlation of mineralogy with their geological formation are reported. These results suggest that high proportions of ash as up to 45% present in Gondwana coals of Jharia are confirmed by x-ray differaction analysis and I.R. spectrocopy. The high mineral matter of such coals was in all probability incorporated during the transportation or "drifting" of the vegetable matter. These coals are also typified by the simultaneous presence of very low percentage of vitreous layers. These results suggest that the mineralogy of the coals of Jharia can be satisfactorily accounted for in terms of the drift origin of the Gondwana formation. Source

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