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Title: FT-IR analysis of Neyveli lignite and flyash samples
Authors: Venkatachalapathy, R
Manoharan, C
Sridharan, T
Basilraj, C M
Issue Date: Mar-2002
Publisher: NISCAIR-CSIR, India
Abstract: Infrared spectroscopy has been recognised as a promising technique for the study of chemical structure and components present in the lignite samples. The extinction coefficient (K) values for aromatic-CH (3030 cm-1 ) and aliphatic -CH (2920 and 2850 cm-1) groups present in the lignite samples were calculated and compared with atomic H/C and O/C ratios. It is found that Neyveli lignite formation belongs to Tertiary period of very low rank coals. The probable period of formation is found to be miocene and oligocene-palaeocene period. The fly ash spectrum reveals the removal of all organic compounds present in lignite and the presence of small amounts of refracting materials of inorganic nature like SiO2, FeO and FeS.
Page(s): 207-212
ISSN: 0975-1041 (Online); 0019-5596 (Print)
Appears in Collections:IJPAP Vol.40(03) [March 2002]

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