Recovery of cobalt and copper through …
The present research aims at recovering copper and cobalt through reprocessing of tailings from flotation of oxidised ores of copper and cobalt achieved at the Kambove Concentrator (DRC). It ...
Stirred-tank bioleaching of copper and cobalt from mine …
The mine tailings near Taltal contained considerable amounts of copper (∼5000 ppm) and cobalt (∼115 ppm). After adaptation of the mesophilic consortium, 38% of Co and 86% of Cu were recovered in 2-L STR at 10% solid load after 12 days bioleaching at 30 °C. In a mini-pilot test in 20-L STR at 15% solid load, Co and Cu extraction reached …
Recovery of copper, nickel and cobalt from acidic pressure …
Semantic Scholar extracted view of "Recovery of copper, nickel and cobalt from acidic pressure leaching solutions of low-grade sulfide flotation concentrates" by Kun-Tao Huang et al. Skip to search form Skip to main content Skip to account menu. Semantic Scholar's Logo. Search 217,797,828 papers from all fields of science ...
Geometallurgy of cobalt ores: A review
This behaviour can be exploited to achieve copper-cobalt separation (Shungu et al., 1988). Sulphidisation of cobalt oxide minerals followed by flotation using sulfhydryl collectors such as xanthate is the most popular route to treat dolomitic oxide ores (Bulatovic, 2010, Shungu et al., 1988). Sulphidisation consists of the activation of ...
Copper Nickel Flotation
The final tailing was rejected in the cobalt-nickel circuit. The flotation pilot plant is shown. Results typical of a single shift during the pilot run are summarized. The recoveries of lead and copper were 87.1% and 81.6% in a concentrate analyzing 20.6% copper, 10.1% lead, 0.99% nickel, and 0.77% cobalt.
Pressure Leaching of Copper Slag Flotation Tailings in …
In this study, a hydrometallurgical method for the recovery of copper, cobalt, and zinc from copper slag flotation tailings (SFT) was investigated. SFT contains large amounts of valuable metallic compounds, such as copper, cobalt, and zinc. A representative SFT sample containing 0.50% Cu, 0.148% Co, 3.93% Zn, and 39.50% Fe …
Challenges and opportunities for cobalt recovery at copper …
The current paper is based on the metallurgical testwork results obtained with cobalt-bearing copper ores from both the Valparaíso and Atacama region in Chile. Best case scenario shows that over ...
Novel approach for processing complex carbonate-rich copper-cobalt
The flotation behaviour of both copper and cobalt is considered because cobalt is recovered as a by-product. 2. Materials and methods2.1. Materials. A 60 kg grab sample representing a typical mixed Cu-Co ore from the oxide to sulphide transition zone was collected in-pit from an active mine site in the Katanga province, DRC. The sample …
Flotation of mixed oxide sulphide copper-cobalt …
Republic of Congo (DRC) from ores containing copper-cobalt oxides or copper-cobalt sulphides. Where oxide and sulphide cobalt-bearing copper minerals occur together, …
Comparative Cleaning Stages in Recovery of Copper and Cobalt …
The flotation behaviours of malachite and heterogenite were studied through many roughing and cleaning flotation tests in order to recovery most of copper and cobalt.
(PDF) A review of the beneficiation of copper …
Copper and cobalt (Cu-Co) are strategic metals for the Democratic Republic of Congo (DRC), and nearly 20% of the country's GDP is supported by their exports. ... thionocarbamates, fatty acids, sulphides …
A Review of the Flotation of Copper Minerals
The authors of [20] investigated on the efficiency of oxide copper-cobalt ores flotation by combination of sulphidisers. Sodium hydrosulphide and ammonium sulphide, were used as sulphidisers to enhance flotation selectivity of copper and cobalt towards the gangue minerals. The investigation showed that sodium hydrosulphide exhibited a good ...
A review of the beneficiation of copper-cobalt-bearing …
Sulphidisation followed by flotation is the preferred beneficiation technique for oxidised copper-cobalt ores. • The integration of CPS systems into the flotation circuits can help minimise reagent overconsumption. • Application of selective flotation can help a concentrator to produce separate oxide and sulphide concentrates.
Recent trends in the Gecamines copper-cobalt flotation plants
The various copper-cobalt ores mined by Gecamines, together with typical plant applications and results, are briefly described. Intensive laboratory investigations have been undertaken in recent years to improve the metallurgical performances of the various concentrators. As a result of these tests, it was shown that the flotation of the siliceous …
Improving the efficiency of oxide copper–cobalt ores flotation …
In this study, flotation of oxidised ores rich in copper and cobalt from Mupine deposit in the Democratic Republic of Congo had been investigated. This ore contains 4.85% copper, 0.16% cobalt.
Recovery of copper, nickel and cobalt from acidic pressure …
Recovery of copper, nickel and cobalt from the acidic pressure leaching solutions of Jinbaoshan (YN Province, PRC) low-grade sulfide flotation concentrates was investigated. ... In the acidic pressure leaching of Jinbaoshan flotation sulfide concentrates, almost all (>99%) of Cu, Ni and Co sulfides are oxidized to sulfates and leached into the ...
A comprehensive review on the recovery of copper values from copper
The flotation concentrate was then subjected to bioleaching by acidophilicbacterial strain, Acidithiobacillus ferrooxidans, for the treatment of base metals such as cobalt, nickel and copper. The application of bio-collector reduced the silica and alumina-based impurities, which aided the bio-leaching process to achieve a Cu …
Cobalt and copper recovery from the ancient flotation …
The ancient flotation tailings from Lefke, Cyprus, have a potential for non-ferrous metals such as cobalt and copper from more than 9.5 million tons of reserves containing 0.38% Cu, 0.032% Co, and ...
Minerals | Free Full-Text | Mineralogical Prediction of Flotation
As part of a study investigating the influence of mineralogical variability in a sediment hosted copper–cobalt deposit in the Democratic Republic of Congo on flotation performance, the flotation of nine sulphide ore samples was investigated through laboratory batch kinetics tests and quantitative mineral analyses. Using a range of ore …
Recovery of cobalt and copper through reprocessing of tailings …
The present research aims at recovering copper and cobalt through reprocessing of tailings from flotation of oxidised ores of copper and cobalt achieved at the Kambove Concentrator (DRC). It focuses on the determination of the reagents' dosage that enables obtaining the highest recovery of copper (44.80%) and cobalt (88.30%) …
Novel approach for processing complex carbonate-rich copper-cobalt
The latter, including a sulphide flotation stage at neutral pH, followed by an acidic reverse flotation stage at pH 4.5-5, increased the overall copper and cobalt recoveries.
Application of Knelson concentrator for beneficiation of copper–cobalt …
containing copper–cobalt flotation tailings. Under the optimal conditions, overall recoveries of approximately 64.36% Cu and 60.50% Co were obtained. (3) The proposed flowsheet for treating the high talc-containing copper–cobalt ore included a flotation section and gravity separation section using Knelson concentrators.
Novel approach for processing complex carbonate-rich copper-cobalt
DOI: 10.1016/j.mineng.2020.106710 Corpus ID: 229386822; Novel approach for processing complex carbonate-rich copper-cobalt mixed ores via reverse flotation @article{Dehaine2020NovelAF, title={Novel approach for processing complex carbonate-rich copper-cobalt mixed ores via reverse flotation}, author={Quentin Dehaine and Lev …
Economic potential and environmental impact of metal …
Copper slag has long been the subject of metal recovery. However, it has become apparent that copper slag flotation tailings can meet resource requirements under certain circumstances. Besides copper, zinc and …
Investigation of Flotation Conditions for Cobalt Recovery
Bell DT (2012) Flotation of cobalt bearing minerals from a mixed copper-cobalt oxidized ore. Dissertation, University of Johannesburg. Shahcheraghi SH, Abdollahy M, Khalesi MR, Hossein SM (2012) A study on the effect of some operating parameters on the flotation kinetics of copper sulfide minerals.
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The process involves two basic flotation methods: (a) fatty acid flotation of oxide copper minerals from siliceous ore, and (b) sulphidization of oxide copper minerals followed by …
[PDF] NICKEL AND COBALT ORES : FLOTATION | Semantic …
NICKEL AND COBALT ORES : FLOTATION. Most of the world's nickel is extracted from the mineral pentlandite, (Ni, Fe)9S8, which frequently occurs in ores containing predominantly pyrrhotite and various non-sulRdes, some of which contain magnesium (Table 1). The nickel content in such sulRde ores is generally low (0.2}3%) and varies …
Flotation and Tailing Discarding of Copper Cobalt …
Flotation and Tailing Discarding of Copper Cobalt Sulfide Ores Based on the Process Mineralogy Characteristics. by. Wentao Hu. …
Recovery of Cobalt, Copper and Zinc from Küre-Kastamonu …
The effect of hydrogen peroxide on the extraction of metals in sulfuric acid solutions using copper smelter flotation tailings was also studied by Yigȋt et al. 58 They reported that a high ...
Minerals | Free Full-Text | Mineralogical Prediction of …
As part of a study investigating the influence of mineralogical variability in a sediment hosted copper–cobalt deposit in the Democratic Republic of Congo on flotation performance, the flotation of …
