Coulson Sedimentation

Question 1

In a mixture of quartz of density 2650 kg/m3 and galena of density 7500 kg/m3, the sizes of the particles range from 0.0052 to 0.025 mm. On separation in a hydraulic classifier under free settling conditions, three fractions are obtained, one consisting of quartz only, one a mixture of quartz and galena, and one of galena only. What are the ranges of sizes of particles of the two substances in the original mixture?

Answer 1

ranges of sizes of particles = 0.0103–0.0126 mm