Copper Upgrading and Recovery Process from Mine Tailing of Bor Region, Serbia Using Flotation

Han, Baisui; Altansukh, Batnasan; Haga, Kazutoshi; Stevanović, Zoran; Jonović, Radojka; Marković, Radmila; Avramović, Ljiljana; Obradovic, Ljubisa; Takasaki, Yasushi; Masuda, Nobuyuki; Ishiyama, Daizo; Shibayama, Atsushi

doi:10.5188/ijsmer.20.225

Cited by 4 publications

(3 citation statements)

References 9 publications

(8 reference statements)

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“…The main copper mineral in the mine tailings was identified as chalcopyrite (CuFeS 2 ) using scanning electron microscope-energy dispersion spectroscopy (SEM-EDS) (Figure 2). The copper concentrate used in this study was prepared by flotation under determined optimal conditions: pH 10, pulp density 25%, PAX collector dosage 100 g/t-ore, NaHS sulfidizer dosage 1000 g/t-ore, MIBC frother dosage 200 g/t, flotation time 5 min [24]. The obtained copper concentrate and the original mine tailings were both used as feed samples in the subsequent leaching experiments.…”

Section: Experimental Samplementioning

confidence: 99%

Copper Recovery and Reduction of Environmental Loading from Mine Tailings by High-Pressure Leaching and SX-EW Process

Godirilwe

Haga

Altansukh

et al. 2021

Metals

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The flotation tailings obtained from Bor Copper Mine contain pyrite (FeS2) and chalcopyrite (CuFeS2), these sulfide minerals are known to promote acid mine drainage (AMD) which poses a serious threat to the environment and human health. This study focuses on the treatment of mine tailings to convert the AMD supporting minerals to more stable forms, while simultaneously valorizing the mine tailings. A combination of hydrometallurgical processes of high-pressure oxidative leaching (HPOL), solvent extraction (SX), and electrowinning (EW) were utilized to recover copper from mine tailings which contain about 0.3% Cu content. The HPOL process yielded a high copper leaching rate of 94.4% when water was used as a leaching medium. The copper leaching kinetics were promoted by the generation of sulfuric acid due to pyrite oxidation. It was also confirmed that a low iron concentration (1.4 g/L) and a high copper concentration (44.8 g/L) obtained in the stripped solution resulted in an improved copper electrodeposition current efficiency during copper electrowinning. Moreover, pyrite, which is primarily in the mine tailings, was converted into hematite after HPOL. A stability evaluation of the solid residue confirmed almost no elution of metal ions, confirming the reduced environmental loading of mine tailings through re-processing.

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Section: Experimental Samplementioning

confidence: 99%

Copper Recovery and Reduction of Environmental Loading from Mine Tailings by High-Pressure Leaching and SX-EW Process

Godirilwe

Haga

Altansukh

et al. 2021

Metals

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“…Markovic et al [9] and Han et al [17] used flotation to recover valuables from the Bor tailings. Markovic et al [9] achieved flotation recovery of copper over 97% and pyrite recovery over 87%.…”

Section: Introductionmentioning

confidence: 99%

New Insights Into Recovery of Copper and Gold from Old Flotation Tailings from Bor, Serbia

Özdemir¹,

Lang²,

Liipo³

2021

Preprint

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Mining and processing tailings often contain significant amounts of valuable metals, that can represent valuable sources of secondary raw materials. Especially this is case in early-stage operations, in which the head grades were higher, and the tailings were higher grade. These tailings can also present a substantial risk to the environment. Serbia has copper deposits which have been exploited since ancient times, and these operations have generated large amounts of mineral processing tailings. The main objective of this study is to show how valuables can be recovered from chemically and mineralogically challenging tailings. After detailed chemical and mineralogical characterization, the laboratory scale flotation tests focused on evaluating the effect of particle size, different types of collectors, pH, and pulp potential. Based on the test work, copper and gold can be recovered effectively into pyrite concentrate

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“…Due to these reasons, an analysis of the soils was carried out on the content of heavy metals from the coastal areas of the Bor River [3][4][5][6] One stage batch test at a liquid to solid ratio of 10 l/kg for materials with particle size below 4 mm (without or with size reduction).…”

Section: Introductionmentioning

confidence: 99%

Characterization of soil in the coastal area of the Bor River abstract

Avramović¹,

Stevanović²,

Bugarin³

et al. 2016

Zas Mat

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Copper Upgrading and Recovery Process from Mine Tailing of Bor Region, Serbia Using Flotation

Cited by 4 publications

References 9 publications

Copper Recovery and Reduction of Environmental Loading from Mine Tailings by High-Pressure Leaching and SX-EW Process

Copper Recovery and Reduction of Environmental Loading from Mine Tailings by High-Pressure Leaching and SX-EW Process

New Insights Into Recovery of Copper and Gold from Old Flotation Tailings from Bor, Serbia

Characterization of soil in the coastal area of the Bor River abstract

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