what velocity of water flow is needed and what is the size range of the pure product?

Separation by Settling. A mixture of galena and silica particles has a size range of 0.075–0.65 mm and is to be separated by a rising stream of water at 293.2 K. Use specific gravities from Example 30.1-3.

a. To obtain an uncontaminated product of galena, what velocity of water flow is needed and what is the size range of the pure product?

b. If another liquid, such as benzene, having a specific gravity of 0.85 and a viscosity of 6.50 × 10 –4 Pa · s is used, what velocity is needed and what is the size range of the pure product?

 

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