SOLVENT EXTRACTION OF PAKISTAN COALS (III) EXTRACTION AND CHARACTERIZATION OF THE EXTRACTS BY SPECTROSCOPIC TECHNIQUES |
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| Authors: | AGHA Z KHAN ALI SHER BHATTI M ZAHID RAZA NISAR AHMAD |
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| Affiliation: | PCSIR - FUEL RESEARCH CENTRE , OFF UNIVERSITY ROAD, KARACHI, 75280, PAKISTAN |
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| Abstract: | Abstract The Makerwal coal of Pakistan gives higher extractibi1ity with Tetrahydrofuran ( THF ) as compared to Sharigh, Sor-Range and Lakhra coals. The structural characterization of Pakistan coal extracts by FT-IR spectroscopy indicates that all the extracts contained less condensed aromatic rings in comparision to their original coal. |
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| Keywords: | surfactant mono-isomeric alkylbenzene sulfonate GC GC-MS ESI-MS NMR |
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