1762 XXXI International Mineral Processing Congress 2024 Proceedings/Washington, DC/Sep 29–Oct 3
This research makes a significant contribution to the
field of green gold processing technology by offering a
solution to the environmental hazards associated with
conventional practices. The use of byproducts from the
bio-oxidation process, such as the ferric solution in the
pretreatment stage, alongside catalysts derived from natural
ores, is evidence of the study’s commitment to eco-friendli-
ness and sustainability. Furthermore, the innovative use of
tailings containing pyrite contributes to the technological
scheme of eco-friendly and sustainable mining practices.
REFERENCES
Abbruzzese, C., Massidda, R., Vegli, F., &Ubaldini, S.
(1995). Thiosulphate leaching for gold hydrometal-
lurgy. Hydrometallurgy, 39, 265–276.
Aylmore, M.G. (2016). Thiosulfate as an Alternative Lixiviant
to Cyanide for Gold Ores. In Gold Ore Processing:
Project Development and Operations (pp. 485–523).
Elsevier. doi: 10.1016/B978-0-444-63658-4.00028-1.
Aylmore, M.G., &Muir, D.M. (2001). THIOSULFATE
LEACHING OF GOLD-A REVIEW. Minerals
Engineering, 14(2), 135–174.
Chen, L., Msigwa, G., Yang, M., Osman, A.I., Fawzy, S.,
Rooney, D.W., &Yap, P.S. (2022). Strategies to achieve
a carbon neutral society: a review. In Environmental
Chemistry Letters (Vol. 20, Issue 4, pp. 2277–2310).
Springer Science and Business Media Deutschland
GmbH. doi: 10.1007/s10311-022-01435-8.
Dudem, B., Kim, D.H., &Yu, J.S. (2018). Triboelectric
nanogenerators with gold-thin-film-coated conduc-
tive textile as floating electrode for scavenging wind
energy. Nano Research, 11(1), 101–113. doi: 10.1007
/s12274-017-1609-0.
Feng, D., &van Deventer, J.S.J. (2006). Ammoniacal
thiosulphate leaching of gold in the presence of pyrite.
Hydrometallurgy, 82(3–4), 126–132. doi: 10.1016
/j.hydromet.2006.03.006.
Feng, D., &Van Deventer, J.S.J. (2011). Thiosulphate
leaching of gold in the presence of orthophosphate and
polyphosphate. Hydrometallurgy, 106(1–2), 38–45.
doi: 10.1016/j.hydromet.2010.11.016.
Garrels R.M., &Thompson M.E. (1960). Oxidation of
pyrite by iron sulfate solutions. Am. J. Sci., 258-A,
57–67.
Hegerl, G.C., Brönnimann, S., Cowan, T., Friedman,
A.R., Hawkins, E., Iles, C., Müller, W., Schurer, A.,
&Undorf, S. (2019). Causes of climate change over
the historical record. In Environmental Research Letters
(Vol. 14, Issue 12). Institute of Physics Publishing. doi:
10.1088/1748-9326/ab4557.
Income, K., Boonpo, S., Kruatian, T., Sooksamiti, P., &
Kungwankunakorn, S. (2021). Gold Recovery from
Copper-Gold Tailings by Ammoniacal Thiosulphate
Leaching. In Current Applied Science and Technology
(Vol. 21, Issue 4).
60%
73%
79% 83%
0%
20%
40%
60%
80%
100%
2 h 4 h 8 h 12 h
Time
Experiment condition: 10% pulp density, 180 rpm shaking rate, 25 °C temperature, pH level 12.0. Reagent:
pyrite (purity 86%)
Figure 7. The effect of time on recovery of gold using pyrite
Gold
recovery
(%)
This research makes a significant contribution to the
field of green gold processing technology by offering a
solution to the environmental hazards associated with
conventional practices. The use of byproducts from the
bio-oxidation process, such as the ferric solution in the
pretreatment stage, alongside catalysts derived from natural
ores, is evidence of the study’s commitment to eco-friendli-
ness and sustainability. Furthermore, the innovative use of
tailings containing pyrite contributes to the technological
scheme of eco-friendly and sustainable mining practices.
REFERENCES
Abbruzzese, C., Massidda, R., Vegli, F., &Ubaldini, S.
(1995). Thiosulphate leaching for gold hydrometal-
lurgy. Hydrometallurgy, 39, 265–276.
Aylmore, M.G. (2016). Thiosulfate as an Alternative Lixiviant
to Cyanide for Gold Ores. In Gold Ore Processing:
Project Development and Operations (pp. 485–523).
Elsevier. doi: 10.1016/B978-0-444-63658-4.00028-1.
Aylmore, M.G., &Muir, D.M. (2001). THIOSULFATE
LEACHING OF GOLD-A REVIEW. Minerals
Engineering, 14(2), 135–174.
Chen, L., Msigwa, G., Yang, M., Osman, A.I., Fawzy, S.,
Rooney, D.W., &Yap, P.S. (2022). Strategies to achieve
a carbon neutral society: a review. In Environmental
Chemistry Letters (Vol. 20, Issue 4, pp. 2277–2310).
Springer Science and Business Media Deutschland
GmbH. doi: 10.1007/s10311-022-01435-8.
Dudem, B., Kim, D.H., &Yu, J.S. (2018). Triboelectric
nanogenerators with gold-thin-film-coated conduc-
tive textile as floating electrode for scavenging wind
energy. Nano Research, 11(1), 101–113. doi: 10.1007
/s12274-017-1609-0.
Feng, D., &van Deventer, J.S.J. (2006). Ammoniacal
thiosulphate leaching of gold in the presence of pyrite.
Hydrometallurgy, 82(3–4), 126–132. doi: 10.1016
/j.hydromet.2006.03.006.
Feng, D., &Van Deventer, J.S.J. (2011). Thiosulphate
leaching of gold in the presence of orthophosphate and
polyphosphate. Hydrometallurgy, 106(1–2), 38–45.
doi: 10.1016/j.hydromet.2010.11.016.
Garrels R.M., &Thompson M.E. (1960). Oxidation of
pyrite by iron sulfate solutions. Am. J. Sci., 258-A,
57–67.
Hegerl, G.C., Brönnimann, S., Cowan, T., Friedman,
A.R., Hawkins, E., Iles, C., Müller, W., Schurer, A.,
&Undorf, S. (2019). Causes of climate change over
the historical record. In Environmental Research Letters
(Vol. 14, Issue 12). Institute of Physics Publishing. doi:
10.1088/1748-9326/ab4557.
Income, K., Boonpo, S., Kruatian, T., Sooksamiti, P., &
Kungwankunakorn, S. (2021). Gold Recovery from
Copper-Gold Tailings by Ammoniacal Thiosulphate
Leaching. In Current Applied Science and Technology
(Vol. 21, Issue 4).
60%
73%
79% 83%
0%
20%
40%
60%
80%
100%
2 h 4 h 8 h 12 h
Time
Experiment condition: 10% pulp density, 180 rpm shaking rate, 25 °C temperature, pH level 12.0. Reagent:
pyrite (purity 86%)
Figure 7. The effect of time on recovery of gold using pyrite
Gold
recovery
(%)