Leaching of low-grade copper ores: A case study for 'Kraku Bugaresku-Cementacija' deposits (Eastern Serbia)

Bogdanović, Grozdanka; Stanković, Vesna; Trumić, Maja S.; Antic, D.; Trumić, Milan

doi:10.5937/jmma1601045b

Cited by 16 publications

(16 citation statements)

References 18 publications

(23 reference statements)

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“…When the flotation experiments were completed, the obtained products -the concentrate of sulphide minerals as overflow and non-floatable gangue minerals as underflow -were sampled and analysed. Detailed procedure of sampling and analysing, as well as the corresponding equipment, is described elsewhere [12,22].…”

Section: Methodsmentioning

confidence: 99%

“…Sulphur originates mostly from pyrite and to a lesser extent from sulphidic copper minerals. The oxidation process of pyrite, its stoichiometry, kinetics, and mechanism, are well described in the relevant literature [1,[20][21][22]. Here will be given a simplified process stoichiometry by the following equations:…”

Section: Chemical Compositionmentioning

confidence: 99%

“…Chalcopyrite showed a good stability against chemical and bacterial leaching and may be considered as an unchangeable mineral in the flotation tailings [20,22,23].…”

Section: Chemical Compositionmentioning

confidence: 99%

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Reprocessing of the old flotation tailings deposited on the RTB Bor tailings pond - a case study

Stanković¹,

Milošević

Milićević

et al. 2018

CI&CEQ

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Article Highlights • Mass of the flotation tailings and valuable metal potential was estimated • Purification of the flotation tailings for possible using in construction materials industry • Copper oxide minerals leaching followed by the re-flotation of residual sulphide • Inlet concentration of copper, iron and sulphur was reduced 3 to 5 times • Proposed a new flotation tailings purification process Abstract Flotation waste, which was produced through seventy years of copper ore processing in RTB Bor, Serbia, is deposited in a flotation tailings pond. In total, almost 26.4 Mt could be considered as available for eventual reprocessing and reuse. Chemical analysis has shown that an average concentration of targeted metals in the tailings is: 0.183% Cu, 0.35 g/t Au and 2.17 g/t Ag. The tailings contain 60 to 70% of SiO 2 , 10 to 17% of Al 2 O 3 and pyrite 5 to 8%. Flotation tailings reprocessing consisted of acid leaching followed by re-flotation of the leach residue. Leaching of the tailings resulted in leach liquors containing Cu 2+ ions from 50 to 580 ppm. The average copper removal degree in the leaching stage was 70%. After re-flotation, the total copper removal degree reached 83 to 85%. Sulphur removal degree reached 77%. Sulphur concentration in the treated tailings was reduced almost 5 times compared to the inlet concentration. An equivalent amount of iron was also reduced through the flotation process. Concentration of total copper was reduced 3 times.

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Section: Methodsmentioning

confidence: 99%

Section: Chemical Compositionmentioning

confidence: 99%

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Reprocessing of the old flotation tailings deposited on the RTB Bor tailings pond - a case study

Stanković¹,

Milošević

Milićević

et al. 2018

CI&CEQ

Self Cite

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“…The copper mine Bor, within the operation scope of Mining & Smelting Basin (RTB) Bor, started mining operations in the year 1903. For more than one hundred years of mining, about 673.5 million tons of overburden and flotation tailings were deposited in and near the municiplity of Bor [37][38][39][40]. Also, over 29,000 hectares of land it has been by quality strongly degraded.…”

Section: Study Sitementioning

confidence: 99%

“…It was built during 1970s as a consequence of the depositing of the large amount of overburden, about 150 million tons, that formed Veliki Planir. As a result of weathering, the products of oxidation are dissolved and leached in the form of AMD wastewaters, whose influence on the environment is extremely harmful due to a high content of heavy metal ions and sulphuric acid [37]. Several thousands of cubic meters of AMD, as a consequence of the weathering from mine dumps, flows into the Borska and Kriveljska river every day [42].…”

Section: Study Sitementioning

confidence: 99%

The study of leachability and toxicity of sludge after neutralization of Saraka and Robule AMD wastewaters

Gardic¹,

Marković²,

Masuda³

et al. 2017

J Min Metall A

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Acid mine drainage (AMD) waters are one of the most important ecological risks at the global level because of its high heavy metals content and strong acidity. Treatment of AMD water is a complex and expensive. One of the most widely used treatment process is the neutralization process of AMD. The result of neutralization is the production of sludge which may contain various other (heavy) metals, depending on the chemical characteristics of the mine water treated. In this paper, leachability and toxicity of the sludges obtained during the neutralization process of wastewater from Saraka and Robule acid mine drainage and the sludges after the stabilization process at different temperatures is tested. Sludge produced in the neutralization process of Robule AMD R4 (40)

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Chalcopyrite Leaching with Hydrogen Peroxide in Formic Acid Medium

Arslanoğlu

Yaraş

2020

Trans Indian Inst Met

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Leaching of low-grade copper ores: A case study for 'Kraku Bugaresku-Cementacija' deposits (Eastern Serbia)

Abstract: This paper deals with the investigation of column leaching of low-grade ores from the copper mine

Cited by 16 publications

References 18 publications

Reprocessing of the old flotation tailings deposited on the RTB Bor tailings pond - a case study

Reprocessing of the old flotation tailings deposited on the RTB Bor tailings pond - a case study

The study of leachability and toxicity of sludge after neutralization of Saraka and Robule AMD wastewaters

Chalcopyrite Leaching with Hydrogen Peroxide in Formic Acid Medium

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