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The medium coking coal fines of −0.5 mm from Jharia coal field were taken for this investigation. The release analysis of the composite coal reveals that yield is very low at 10.0% ash, about 25% at 14% ash and 50% at 17% ash level. The low yield is caused by the presence of high ash finer fraction. The size-wise ash analysis of −0.5 mm coal indicated that −0.5+0.15 mm fraction contains less ash than...
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