8
[5] Haghighi, H.K., Irannajad, M., Fortuny, A., Sastre,
A.M., 2018. Recovery of germanium from leach solu-
tions of fly ash using solvent extraction with various
extractants. Hydrometallurgy 175, 164–169. https://
doi.org/10.1016/j.hydromet.2017.11.006.
[6] Zhou, J., Zhu, N., Liu, H., Wu, P., Zhang, X., Zhong,
Z., 2019. Recovery of gallium from waste light emit-
ting diodes by oxalic acidic leaching. Resour. Conserv.
Recycl. 146, 366–372.
[7] Avarmaa, K., Yliaho, S., Taskinen, P., 2018. Recoveries
of rare elements Ga, Ge, in and Sn from waste elec-
tric and electronic equipment through secondary
copper smelting. Waste Manage. (Tucson, Ariz.) 71,
400–410.
[8] Manca, P. P., Massacci, G., Pintus, D., &Sogos, G.
(2021). The flotation of sphalerite mine tailings as
a remediation method. Minerals Engineering, 165,
106862.
[9] Jia, K., Feng, Qm., Zhang, Gf. et al. Improved
hemimorphite flotation using xanthate as a collector
with S(II) and Pb(II) activation. Int J Miner Metall
Mater 25, 849–860 (2018).
[10] Karimi, P., Abdollahi, H., Shafaei, Z., &Molaei, A.
(2019). Flotation of zinc silicate ore: A focus on effec-
tive parameters, synergistic effect of mixed cationic
collectors and its mechanism. International Journal of
Mining and Geo-Engineering, 53(1), 33–41.
[11] Ejtemaei M, Gharabaghi M, Irannajad M. A review
of zinc oxide mineral beneficiation using flota-
tion method. Adv Colloid Interface Sci. 2014 Apr
206:68–78.
[12] White, S. J. O, Piatak, N., McAleer, R., Hayes, S.,
Seal, R. R., Schaider, L. A., et al. (2022a). Germanium
redistribution during weathering of Zn mine wastes:
Implications for environmental mobility and recovery
of a critical mineral. Appl. Geochem. 143, 105341.
[5] Haghighi, H.K., Irannajad, M., Fortuny, A., Sastre,
A.M., 2018. Recovery of germanium from leach solu-
tions of fly ash using solvent extraction with various
extractants. Hydrometallurgy 175, 164–169. https://
doi.org/10.1016/j.hydromet.2017.11.006.
[6] Zhou, J., Zhu, N., Liu, H., Wu, P., Zhang, X., Zhong,
Z., 2019. Recovery of gallium from waste light emit-
ting diodes by oxalic acidic leaching. Resour. Conserv.
Recycl. 146, 366–372.
[7] Avarmaa, K., Yliaho, S., Taskinen, P., 2018. Recoveries
of rare elements Ga, Ge, in and Sn from waste elec-
tric and electronic equipment through secondary
copper smelting. Waste Manage. (Tucson, Ariz.) 71,
400–410.
[8] Manca, P. P., Massacci, G., Pintus, D., &Sogos, G.
(2021). The flotation of sphalerite mine tailings as
a remediation method. Minerals Engineering, 165,
106862.
[9] Jia, K., Feng, Qm., Zhang, Gf. et al. Improved
hemimorphite flotation using xanthate as a collector
with S(II) and Pb(II) activation. Int J Miner Metall
Mater 25, 849–860 (2018).
[10] Karimi, P., Abdollahi, H., Shafaei, Z., &Molaei, A.
(2019). Flotation of zinc silicate ore: A focus on effec-
tive parameters, synergistic effect of mixed cationic
collectors and its mechanism. International Journal of
Mining and Geo-Engineering, 53(1), 33–41.
[11] Ejtemaei M, Gharabaghi M, Irannajad M. A review
of zinc oxide mineral beneficiation using flota-
tion method. Adv Colloid Interface Sci. 2014 Apr
206:68–78.
[12] White, S. J. O, Piatak, N., McAleer, R., Hayes, S.,
Seal, R. R., Schaider, L. A., et al. (2022a). Germanium
redistribution during weathering of Zn mine wastes:
Implications for environmental mobility and recovery
of a critical mineral. Appl. Geochem. 143, 105341.