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The process provides a process for the recovery of finest cleans from coal slurry which comprises conditioning slurry of fine coal particles of size below -.5 mm by treating with frothers in a ratio of 1:10 and hydrocarbon reagents in a ratio of 1.25 to 1.5 under stirring for 8 hours, at a temperature of 25 to 30 °C passing the conditioned slurry through a plurality of flotation cells, removing the tailings by known methods, subjecting the resultant slurry to vacuum filtration to obtain filter cake containing finest cleans.