3026 XXXI International Mineral Processing Congress 2024 Proceedings/Washington, DC/Sep 29–Oct 3
copper recovery and solve the Cu/Zn selectivity problems.
The results showed that the total copper recovery was calcu-
lated as 83.53% (58.10% Leach +25.43% flotation) in the
hybrid flowsheet option. The copper from the leach solu-
tion can be recovered in the form of Cu2S precipitate using
the SART process. A significant portion of cyanide is also
recovered and recycled with this process.
The leach residue can either be blended with the stan-
dard sulfide ore or treated separately in campaign mode in
the flotation circuit.
A high-grade zinc concentrate was produced assaying
52.14% Zn at 77.51% recovery.
The problematic enriched type ores can be treated with
the hybrid leach-flotation process. The economics of the
process depends on the ore grade and tonnage.
REFERENCES
Bulatovic, S.M., 2007. Handbook of Flotation
Reagents. Elsevier Science and Technology, 449p,
ISBN:0444530290.
Fernando Medina Ferrera,b,c,*, Bernhard Doldd,e, Oscar
Jerez., 2021. Dissolution kinetics and solubilities of
copper sulfides in cyanide and hydrogen peroxide
leaching: Applications to increase selective extractions.
Journal of Geochemical Exploration, 230, doi: 10.1016/j.
gexplo.2021.106848.
Fisher, W.W., 1994. Comparison of chalcocite dissolution
in the sulfate, perchlorate, nitrate, chloride, ammo-
nia, and cyanide systems. Miner. Eng. 7, 99–103. doi:
10.1016/0892-6875(94)90150-3.
Fisher, W.W., Flores, F.A., Henderson, J.A., 1992.
Comparison of chalcocite dissolution in the oxygen-
ated, aqueous sulfate and chloride systems. Miner. Eng.
5, 817–834. doi: 10.1016/0892-6875(92)90248-8.
Hu, Y., Sun, W., Wang, D., 2009. Electrochemistry of
Flotation of Sulphide Minerals. Tsinghua University
Press, Beijing and Springer-Verlag Berlin Heidleberg,
304p.
Kettanah, Y.A., 2019. Copper mineralozitaion and altera-
tions in Gercus Basal within the Gercus Formation,
northern Iraq., Ore Geology Reviews, 111, doi:
10.1016/j.oregeorev.2019.102974.
Sikka, D.B., Petruk, W., Nehru, C.E., Zhang, Z.
1991. Geochemistry of secondary copper min-
erals from Proterozoic porphyry copper depos-
its, Malanjkhand, India., Reviews, 6, 2–3. doi:
10.1016/0169-1368(91)90026-4.
copper recovery and solve the Cu/Zn selectivity problems.
The results showed that the total copper recovery was calcu-
lated as 83.53% (58.10% Leach +25.43% flotation) in the
hybrid flowsheet option. The copper from the leach solu-
tion can be recovered in the form of Cu2S precipitate using
the SART process. A significant portion of cyanide is also
recovered and recycled with this process.
The leach residue can either be blended with the stan-
dard sulfide ore or treated separately in campaign mode in
the flotation circuit.
A high-grade zinc concentrate was produced assaying
52.14% Zn at 77.51% recovery.
The problematic enriched type ores can be treated with
the hybrid leach-flotation process. The economics of the
process depends on the ore grade and tonnage.
REFERENCES
Bulatovic, S.M., 2007. Handbook of Flotation
Reagents. Elsevier Science and Technology, 449p,
ISBN:0444530290.
Fernando Medina Ferrera,b,c,*, Bernhard Doldd,e, Oscar
Jerez., 2021. Dissolution kinetics and solubilities of
copper sulfides in cyanide and hydrogen peroxide
leaching: Applications to increase selective extractions.
Journal of Geochemical Exploration, 230, doi: 10.1016/j.
gexplo.2021.106848.
Fisher, W.W., 1994. Comparison of chalcocite dissolution
in the sulfate, perchlorate, nitrate, chloride, ammo-
nia, and cyanide systems. Miner. Eng. 7, 99–103. doi:
10.1016/0892-6875(94)90150-3.
Fisher, W.W., Flores, F.A., Henderson, J.A., 1992.
Comparison of chalcocite dissolution in the oxygen-
ated, aqueous sulfate and chloride systems. Miner. Eng.
5, 817–834. doi: 10.1016/0892-6875(92)90248-8.
Hu, Y., Sun, W., Wang, D., 2009. Electrochemistry of
Flotation of Sulphide Minerals. Tsinghua University
Press, Beijing and Springer-Verlag Berlin Heidleberg,
304p.
Kettanah, Y.A., 2019. Copper mineralozitaion and altera-
tions in Gercus Basal within the Gercus Formation,
northern Iraq., Ore Geology Reviews, 111, doi:
10.1016/j.oregeorev.2019.102974.
Sikka, D.B., Petruk, W., Nehru, C.E., Zhang, Z.
1991. Geochemistry of secondary copper min-
erals from Proterozoic porphyry copper depos-
its, Malanjkhand, India., Reviews, 6, 2–3. doi:
10.1016/0169-1368(91)90026-4.