Question

A two-component mixture containing 70% of Mineral A and 30% of Mineral B is floated in a bank of five identical cells under perfect mixing conditions at two different residence times.

The following data are available:

At a residence time of (τ+0.24) (min.) in each cell: - the mass yield of concentrate from the entire bank: 38.24% - the content of Mineral A in tailings exiting the bank: 93.16%

At a residence time of τ (min.) in each cell: - the mass yield of concentrate from the entire bank: 31.98% - the content of Mineral A in tailings exiting the bank: 89.64% Calculate the value of the flotation rate constant kB (the flotation rate constant for Mineral B). (20%)

Answer 1