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Article

Diagnosis and Optimization of Gold Ore Flotation Circuit via Linear Circuit Analysis and Mass Balance Simulation

1
Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Daejeon 34141, Korea
2
Department of Earth Resources and Environmental Engineering, Hanyang University, 222 Wangsimni-ro, Seoul 04763, Korea
3
Resources Recovery Research Center, Mineral Resources Division, Korea Institute of Geoscience & Mineral Resources (KIGAM), 124 Gwahak-ro, Daejeon 34132, Korea
4
Gold Mining Division, Suncement Co., Ltd., Haenam-gun 59006, Korea
5
Department of Resources Recycling, University of Science and Technology (UST), 217 Gajeong-ro, Daejeon 34113, Korea
*
Authors to whom correspondence should be addressed.
These authors contributed equally to this work.
Academic Editors: Marthias Silwamba and Ilhwan Park
Minerals 2021, 11(10), 1065; https://doi.org/10.3390/min11101065
Received: 2 September 2021 / Revised: 25 September 2021 / Accepted: 27 September 2021 / Published: 29 September 2021
(This article belongs to the Special Issue Sustainable Production of Metals for Low-Carbon Technologies)
The aim of this study is to diagnose and optimize a closed multistage gold ore flotation circuit in an operational industrial plant. Linear circuit analysis (LCA), a partition-based model, and a mass balance model using flotation first-order kinetics are employed to diagnose the current process. The result shows that the current circuit operates with high recovery but the gold grade of the final concentrate is low owing to the low buoyancy ratio. Hence, several alternative circuits with different streamlines and cell arrangements are proposed and simulated using LCA and a mass balance model. The result suggests that if the current process is changed to an alternative circuit in which the floated product stream of the rougher bank is changed, then the gold grade of the concentrate can be improved by 128%. Finally, the current circuit is optimized by changing it to an alternative circuit. This study provides a methodology for adapting the simulation of optimization for the flotation circuit of an industrial plant via LCA and mass balance simulation. View Full-Text
Keywords: flotation circuit; gold ore; diagnosis; optimization; mass balance; process simulation flotation circuit; gold ore; diagnosis; optimization; mass balance; process simulation
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MDPI and ACS Style

Han, S.; Jung, M.; Lee, W.; Kim, S.; Lee, K.; Lim, G.-t.; Jeon, H.-S.; Choi, S.Q.; Han, Y. Diagnosis and Optimization of Gold Ore Flotation Circuit via Linear Circuit Analysis and Mass Balance Simulation. Minerals 2021, 11, 1065. https://doi.org/10.3390/min11101065

AMA Style

Han S, Jung M, Lee W, Kim S, Lee K, Lim G-t, Jeon H-S, Choi SQ, Han Y. Diagnosis and Optimization of Gold Ore Flotation Circuit via Linear Circuit Analysis and Mass Balance Simulation. Minerals. 2021; 11(10):1065. https://doi.org/10.3390/min11101065

Chicago/Turabian Style

Han, Seongsoo, Minuk Jung, Wonjae Lee, Seongmin Kim, Kyoungmun Lee, Geun-tae Lim, Ho-Seok Jeon, Siyoung Q. Choi, and Yosep Han. 2021. "Diagnosis and Optimization of Gold Ore Flotation Circuit via Linear Circuit Analysis and Mass Balance Simulation" Minerals 11, no. 10: 1065. https://doi.org/10.3390/min11101065

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