The following data have been collected from a series of batch flotation test designed to simulate flotation circuit of a Molybdenum concentrator. Calculate recovery of each stage and plot recovery against concentrate grade for all process steps. How does the curves drawn compare with the conventional recovery-grade curves?
Flotation stage
Feed weight
Assays (wt%)
% of initial feed
Feed (f)
Concentrate (c)
Tails (t)
Rougher
100
0.79
8.10
0.04
1st Cleaner
9.3
8.10
35.42
0.49
2nd Cleaner
2.0
35.42
46.33
9.33
3rd Cleaner
1.4
46.33
49.99
32.90
4th Cleaner
1.1
49.99
51.50
44.10