XXXI International Mineral Processing Congress 2024 Proceedings/Washington, DC/Sep 29–Oct 3 1457
Cu sulphides. These liberation numbers reflect a P80 of
150–300 µm.
The grain size data serve to study the distribution of
the grain size of a specific mineral and particles within the
TIMA-X software, it is defined as equivalent circle diam-
eter (d). It is the diameter of a circle that has the same area
(A) as the particle (or grain). The diameter is defined in
pixels and then multiplied by pixel spacing (Ps) to obtain
size in micrometres. The precise definition is described in
the following formula: d A/r Ps 2 $$=.The P80 (μm) of
chalcopyrite ranges from 35 μm to 96 μm that of chal-
cocite from 7 μm to 181 μm that of bornite from 10 μm
Table 1. Geochemical analyses
Analyte Units Sample 1 Sample 2 Sample 3 Sample 4 Sample 5 Sample 6 Sample 7 Sample 8 Sample 9 Sample 10
Cu (H2SO4) %0.011 0.057 0.160 0.230 0.200 0.340 0.073 0.035 0.120 0.058
Cu% (NaCN) %0.020 0.040 0.190 1.390 0.440 0.390 0.160 0.120 0.110 0.096
Cu% (Acid AR) %0.580 0.210 0.081 0.120 0.095 0.300 1.130 0.032 0.200 1.730
S %1.29 1.1 0.19 0.8 0.89 6.5 15.5 0.3 4.4 2.2
Al %5.85 1.7 1.67 6.1 6.42 4.0 1.9 2.1 4.65 0.3
Ba ppm 1040 43.0 17 747.0 808 27.0 24 292.0 406 11.0
Be ppm 5 5 5 5 5 5 7 5 5 5
Ca %0.4 15.7 24.6 0.4 0.4 13.5 4.7 0.1 0.7 18.3
Cr ppm 131 36.0 74 102.0 75 102.0 73 206.0 131 79.0
Cu ppm 6200 3351 4647 18066 8018 11219 14988 2016 4708 21166
Fe %2.88 4.6 5.92 2.2 3.17 15.5 24.51 0.9 6.27 15.2
K %5.1 0.4 0.2 5.2 4.3 0.3 0.5 2.2 3.9 0.1
Li ppm 43 74.0 19 40.0 41 15.0 30 23.0 52 47.0
Mg %0.83 7.7 1.89 0.8 0.99 1.1 4.25 0.1 0.95 2.0
Mn ppm 280 4318.0 5982 294.0 508 6398.0 6707 100.0 704 3735.0
Ni ppm 15 13.0 15 16.0 21 27.0 52 13.0 27 15.0
P %0.09 0.0 0.01 0.1 0.1 0.1 0.06 0.0 0.08 0.1
Sc ppm 11 5 5 11.0 12 8.0 5 5 8 5
Si %30.0 16.7 14.1 30.0 30.0 16.6 10.9 30.0 30.0 16.8
Sr ppm 63 53.0 44 68.0 79 118.0 21 20.0 39 39.0
Ti %0.43 0.1 0.08 0.4 0.42 0.2 0.13 0.2 0.35 0.0
V ppm 47 33.0 63 49.0 48 66.0 46 23.0 51 36.0
Zn ppm 89 1408.0 216 106.0 141 551.0 883 75.0 111 384.0
Ag ppm 5 5 5 5 5 5 5 5 5 12.0
As ppm 7 7.0 5 3 3 3 3 3.0 10 12.0
Bi ppm 0.8 11.0 9.6 2.3 0.5 0.7 0.8 1.9 0.8 11.3
Cd ppm 0.3 6.8 1.4 0.2 2.7 2.1 1.4 0.2 0.4 2.7
Co ppm 16.9 11.7 6 8.0 12 27.3 113 3.5 19 15.5
Cs ppm 9.9 3.8 2.8 8.8 9 2.3 1.8 3.1 10.2 0.9
Ga ppm 15 10.0 14 15.0 17 33.0 20 6.0 15 17.0
Gd ppm 10.8 1.7 2.95 11.7 14.62 6.1 3 3.6 8.52 0.6
Ge ppm 1 7.0 14 2.0 1 13.0 5 1.0 2 26.0
In ppm 0.2 1.4 2.5 0.3 0.2 2.6 1.8 0.2 0.3 9.0
Mo ppm 416 139.0 122 1088.0 389 42.0 54 248.0 289 116.0
Nb ppm 19 46.0 4 18.0 21 15.0 9 15.0 25 33.0
Pb ppm 15 302.0 8 17.0 14 13.0 6 20.0 12 30.0
Rb ppm 236 36.0 11 243.0 247 20.0 40 96.0 181 2.0
Sb ppm 1 5.0 1 1.0 1 1.0 1 1.0 2 3.0
Sn ppm 50 50 50 50 50 50 50 50 50 56.0
Ta ppm 1.5 2.5 0.5 1.3 1.8 1.1 0.7 1.0 1.6 1.7
Th ppm 18.5 3.3 2.2 20.1 28.5 8.7 4.2 10.1 13.1 1.2
Tl ppm 1.3 0.5 0.5 1.1 1.3 0.5 0.5 0.7 1.2 0.5
U ppm 6 4.0 4 13.0 7 7.0 12 5.0 6 12.0
W ppm 15 213.0 193 12.0 13 124.0 97 14.0 19 158.0
ppm 336.5 59.8 64.1 319.8 416.4 207.4 86.6 116.2 263.4 64.4
Cu sulphides. These liberation numbers reflect a P80 of
150–300 µm.
The grain size data serve to study the distribution of
the grain size of a specific mineral and particles within the
TIMA-X software, it is defined as equivalent circle diam-
eter (d). It is the diameter of a circle that has the same area
(A) as the particle (or grain). The diameter is defined in
pixels and then multiplied by pixel spacing (Ps) to obtain
size in micrometres. The precise definition is described in
the following formula: d A/r Ps 2 $$=.The P80 (μm) of
chalcopyrite ranges from 35 μm to 96 μm that of chal-
cocite from 7 μm to 181 μm that of bornite from 10 μm
Table 1. Geochemical analyses
Analyte Units Sample 1 Sample 2 Sample 3 Sample 4 Sample 5 Sample 6 Sample 7 Sample 8 Sample 9 Sample 10
Cu (H2SO4) %0.011 0.057 0.160 0.230 0.200 0.340 0.073 0.035 0.120 0.058
Cu% (NaCN) %0.020 0.040 0.190 1.390 0.440 0.390 0.160 0.120 0.110 0.096
Cu% (Acid AR) %0.580 0.210 0.081 0.120 0.095 0.300 1.130 0.032 0.200 1.730
S %1.29 1.1 0.19 0.8 0.89 6.5 15.5 0.3 4.4 2.2
Al %5.85 1.7 1.67 6.1 6.42 4.0 1.9 2.1 4.65 0.3
Ba ppm 1040 43.0 17 747.0 808 27.0 24 292.0 406 11.0
Be ppm 5 5 5 5 5 5 7 5 5 5
Ca %0.4 15.7 24.6 0.4 0.4 13.5 4.7 0.1 0.7 18.3
Cr ppm 131 36.0 74 102.0 75 102.0 73 206.0 131 79.0
Cu ppm 6200 3351 4647 18066 8018 11219 14988 2016 4708 21166
Fe %2.88 4.6 5.92 2.2 3.17 15.5 24.51 0.9 6.27 15.2
K %5.1 0.4 0.2 5.2 4.3 0.3 0.5 2.2 3.9 0.1
Li ppm 43 74.0 19 40.0 41 15.0 30 23.0 52 47.0
Mg %0.83 7.7 1.89 0.8 0.99 1.1 4.25 0.1 0.95 2.0
Mn ppm 280 4318.0 5982 294.0 508 6398.0 6707 100.0 704 3735.0
Ni ppm 15 13.0 15 16.0 21 27.0 52 13.0 27 15.0
P %0.09 0.0 0.01 0.1 0.1 0.1 0.06 0.0 0.08 0.1
Sc ppm 11 5 5 11.0 12 8.0 5 5 8 5
Si %30.0 16.7 14.1 30.0 30.0 16.6 10.9 30.0 30.0 16.8
Sr ppm 63 53.0 44 68.0 79 118.0 21 20.0 39 39.0
Ti %0.43 0.1 0.08 0.4 0.42 0.2 0.13 0.2 0.35 0.0
V ppm 47 33.0 63 49.0 48 66.0 46 23.0 51 36.0
Zn ppm 89 1408.0 216 106.0 141 551.0 883 75.0 111 384.0
Ag ppm 5 5 5 5 5 5 5 5 5 12.0
As ppm 7 7.0 5 3 3 3 3 3.0 10 12.0
Bi ppm 0.8 11.0 9.6 2.3 0.5 0.7 0.8 1.9 0.8 11.3
Cd ppm 0.3 6.8 1.4 0.2 2.7 2.1 1.4 0.2 0.4 2.7
Co ppm 16.9 11.7 6 8.0 12 27.3 113 3.5 19 15.5
Cs ppm 9.9 3.8 2.8 8.8 9 2.3 1.8 3.1 10.2 0.9
Ga ppm 15 10.0 14 15.0 17 33.0 20 6.0 15 17.0
Gd ppm 10.8 1.7 2.95 11.7 14.62 6.1 3 3.6 8.52 0.6
Ge ppm 1 7.0 14 2.0 1 13.0 5 1.0 2 26.0
In ppm 0.2 1.4 2.5 0.3 0.2 2.6 1.8 0.2 0.3 9.0
Mo ppm 416 139.0 122 1088.0 389 42.0 54 248.0 289 116.0
Nb ppm 19 46.0 4 18.0 21 15.0 9 15.0 25 33.0
Pb ppm 15 302.0 8 17.0 14 13.0 6 20.0 12 30.0
Rb ppm 236 36.0 11 243.0 247 20.0 40 96.0 181 2.0
Sb ppm 1 5.0 1 1.0 1 1.0 1 1.0 2 3.0
Sn ppm 50 50 50 50 50 50 50 50 50 56.0
Ta ppm 1.5 2.5 0.5 1.3 1.8 1.1 0.7 1.0 1.6 1.7
Th ppm 18.5 3.3 2.2 20.1 28.5 8.7 4.2 10.1 13.1 1.2
Tl ppm 1.3 0.5 0.5 1.1 1.3 0.5 0.5 0.7 1.2 0.5
U ppm 6 4.0 4 13.0 7 7.0 12 5.0 6 12.0
W ppm 15 213.0 193 12.0 13 124.0 97 14.0 19 158.0
ppm 336.5 59.8 64.1 319.8 416.4 207.4 86.6 116.2 263.4 64.4