### derivation of the critical speed formula of a ball mill

RTD, Holdup, Ball mill, Ball load, Slurry - Scientific & Academic mill. The correlation between slurry holdup volume with ball loading, slurry solids concentration and feed flow rate yielded plausible the origin give the mean residence time (τ) and the variance while grinding equations describe the breakage behavior as a 75% of critical speed, slurry solids concentration is 75%,.

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