XXXI International Mineral Processing Congress 2024 Proceedings/Washington, DC/Sep 29–Oct 3 2143
lowest recovery and grade for Ag was obtained, with AERO
412 presenting 52.43% and 0.73 ppm, respectively.
The recovery and grade data of Au are shown in
Figure 7. Results showed that Au recovery was similar to
Ag recovery, ranging from 60% to 30% grades for Au and
Ag were not comparable. Specifically, AERO 8989 had
the highest Au recovery, equal to 60.56%, at 0.112 ppm.
EXP300422 presented an Au recovery of 54.41% at a grade
of 0.087 ppm. Low Au recovery of 35.79% and 31.46%
was obtained using AERO 412 and SIPX however, the Au
grades were 0.070 ppm and 0.049 ppm, respectively.
Table 6 shows the enrichment and yield calcula-
tions for each collector type used at 150 g/t. Results for
AERO 8989 showed a yield of 31.90%, Te enrichment of
2.5, Au enrichment of 1.9, and Ag enrichment of 1.93.
EXP300422 presented a yield of 55.04%, Te enrichment of
1.14, Au enrichment of 0.99, and Ag enrichment of 1.03.
SIPX yielded 56.50%, Te enrichment of 1.14, Au enrich-
ment of 0.56, and Ag enrichment of 1.10. Lastly, AERO
412 presented a yield of 30.16%, Te enrichment of 1.50,
Au enrichment of 1.19, and Ag enrichment of 1.74. Results
presented in Table 6. suggested that the most efficient col-
lector type for Te, Au, and Ag flotation was AERO 8989
since it had the second lowest overall mass pull (yield) at
31.90% and the highest enrichment for all the desired
metals/metalloid.
0.65
0.7
0.75
0.8
0.85
0.9
0
20
40
60
80
100
EXP300422 (150 g/t) SIPX (150 g/t) AERO 8989 (150 g/t) AERO 412 (150 g/t)
Collector type +MIBC (50 g/t)
Ag Recovery Ag Grade (ppm)
Figure 6. Effect of collector type at 150 g/t on the enrichment of Ag using MIBC frother at 50 g/t
0
0.02
0.04
0.06
0.08
0.1
0.12
0
20
40
60
80
100
EXP300422 (150 g/t) SIPX (150 g/t) AERO 8989 (150 g/t) AERO 412 (150 g/t)
Collector type +MIBC (50 g/t)
Au Recovery Au Grade (ppm)
Figure 7. Effect of collector type at 150 g/t on the enrichment of Au using MIBC frother at 50 g/t
Grade
(ppm)
Recovery
(%)
Grade
(ppm)
Recovery
(%)
lowest recovery and grade for Ag was obtained, with AERO
412 presenting 52.43% and 0.73 ppm, respectively.
The recovery and grade data of Au are shown in
Figure 7. Results showed that Au recovery was similar to
Ag recovery, ranging from 60% to 30% grades for Au and
Ag were not comparable. Specifically, AERO 8989 had
the highest Au recovery, equal to 60.56%, at 0.112 ppm.
EXP300422 presented an Au recovery of 54.41% at a grade
of 0.087 ppm. Low Au recovery of 35.79% and 31.46%
was obtained using AERO 412 and SIPX however, the Au
grades were 0.070 ppm and 0.049 ppm, respectively.
Table 6 shows the enrichment and yield calcula-
tions for each collector type used at 150 g/t. Results for
AERO 8989 showed a yield of 31.90%, Te enrichment of
2.5, Au enrichment of 1.9, and Ag enrichment of 1.93.
EXP300422 presented a yield of 55.04%, Te enrichment of
1.14, Au enrichment of 0.99, and Ag enrichment of 1.03.
SIPX yielded 56.50%, Te enrichment of 1.14, Au enrich-
ment of 0.56, and Ag enrichment of 1.10. Lastly, AERO
412 presented a yield of 30.16%, Te enrichment of 1.50,
Au enrichment of 1.19, and Ag enrichment of 1.74. Results
presented in Table 6. suggested that the most efficient col-
lector type for Te, Au, and Ag flotation was AERO 8989
since it had the second lowest overall mass pull (yield) at
31.90% and the highest enrichment for all the desired
metals/metalloid.
0.65
0.7
0.75
0.8
0.85
0.9
0
20
40
60
80
100
EXP300422 (150 g/t) SIPX (150 g/t) AERO 8989 (150 g/t) AERO 412 (150 g/t)
Collector type +MIBC (50 g/t)
Ag Recovery Ag Grade (ppm)
Figure 6. Effect of collector type at 150 g/t on the enrichment of Ag using MIBC frother at 50 g/t
0
0.02
0.04
0.06
0.08
0.1
0.12
0
20
40
60
80
100
EXP300422 (150 g/t) SIPX (150 g/t) AERO 8989 (150 g/t) AERO 412 (150 g/t)
Collector type +MIBC (50 g/t)
Au Recovery Au Grade (ppm)
Figure 7. Effect of collector type at 150 g/t on the enrichment of Au using MIBC frother at 50 g/t
Grade
(ppm)
Recovery
(%)
Grade
(ppm)
Recovery
(%)