3318 XXXI International Mineral Processing Congress 2024 Proceedings/Washington, DC/Sep 29–Oct 3
65
66
67
68
69
70
71
72
73
74
75
90 91 92 93 94 95 96 97 98 99 100
Lithium Recovery (%)
FA1 FA2
FA1+5% NCY FA2+5% NCY
FA1+5% NCY (Flot @pH 9.25) FA2+5% HYR
FA1+5% HYR
90
91
92
93
94
95
96
97
98
99
100
4.00 4.20 4.40 4.60 4.80 5.00
Concentrate Li2O Assay
1.90
1.95
2.00
2.05
2.10
2.15
2.20
2.25
2.30
3.8 4.0 4.2 4.4 4.6 4.8
Concentrate Li2O Assay
65
66
67
68
69
70
71
72
73
74
75
1.50 1.70 1.90 2.10 2.30 2.50
Concentrate Fe2O3 Assay
1a. 1b.
1c. 1d.
Figure 1. Spodumene rougher flotation performance: (a.) lithium grade vs. recovery, (b.) iron grade vs. recovery, (c.) lithium
vs. iron recovery, and (d.) lithium vs. iron assay
R² =0.9562
R² =0.9683
6.0
8.0
10.0
12.0
14.0
16.0
18.0
20.0
0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
Concentrate Assay (%K
2 O or Na
2 O)
K2O
Na2O
Figure 2. Spodumene rougher flotation K2O and Na2O grade vs. recovery
Iron
Recovery
(%)
Lithium
Recovery
(%)
Concentrate
FeO
2
3
Assay
Iron
Recovery
(%)
K
or
Na
Recovery
(%)
65
66
67
68
69
70
71
72
73
74
75
90 91 92 93 94 95 96 97 98 99 100
Lithium Recovery (%)
FA1 FA2
FA1+5% NCY FA2+5% NCY
FA1+5% NCY (Flot @pH 9.25) FA2+5% HYR
FA1+5% HYR
90
91
92
93
94
95
96
97
98
99
100
4.00 4.20 4.40 4.60 4.80 5.00
Concentrate Li2O Assay
1.90
1.95
2.00
2.05
2.10
2.15
2.20
2.25
2.30
3.8 4.0 4.2 4.4 4.6 4.8
Concentrate Li2O Assay
65
66
67
68
69
70
71
72
73
74
75
1.50 1.70 1.90 2.10 2.30 2.50
Concentrate Fe2O3 Assay
1a. 1b.
1c. 1d.
Figure 1. Spodumene rougher flotation performance: (a.) lithium grade vs. recovery, (b.) iron grade vs. recovery, (c.) lithium
vs. iron recovery, and (d.) lithium vs. iron assay
R² =0.9562
R² =0.9683
6.0
8.0
10.0
12.0
14.0
16.0
18.0
20.0
0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
Concentrate Assay (%K
2 O or Na
2 O)
K2O
Na2O
Figure 2. Spodumene rougher flotation K2O and Na2O grade vs. recovery
Iron
Recovery
(%)
Lithium
Recovery
(%)
Concentrate
FeO
2
3
Assay
Iron
Recovery
(%)
K
or
Na
Recovery
(%)