آخرین محصولات
A study of recovery of copper and cobalt from …
The results show 90% copper and 95% cobalt recovery under the optimal experimental conditions of average particle diameter 0.10) CuCl Copper–cobalt oxide …
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A Review of Nickel, Copper, and Cobalt Recovery by …
This overview discusses chelating resin applications to recover copper, nickel, and cobalt from mining process and mining tailings and the effect of contaminants in leach solution. Chelating resins with iminodiacetate functional group can be used for selective copper recovery, and both iminodiacetate and bis …
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First Cobalt studies battery recycling for nickel, copper and cobalt
First Cobalt Corp. announced that it has begun a study of black mass material from recycled batteries as a supplemental source of feed for its hydrometallurgical refinery located north of Toronto. The Company believes the Refinery could recover cobalt, nickel, copper and potentially lithium and manganese, in addition to planned cobalt …
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Production of cobalt from copper-cobalt ores on the African …
The design of the copper-cobalt circuit continues to change and adapt to the market and technology changes. The introduction of "whole ore leaching" at Katanga (also referred to as tailing leaching at KCM) will increase the recovery of cobalt because it can recover cobalt from sulphide and oxide minerals.
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(PDF) Recovery of metal values from copper slags by flotation …
The recovery of copper and cobalt from ancient copper slags from the Küre region of Turkey was investigated. A fayalitic-type of ancient copper slag containing 1.24% Cu, 0.53% Co and 53.16% Fe ...
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Copper and Cobalt Recovery from Pyrite Ashes of a
The results showed that an optimized cobalt–sulfur concentrate with a cobalt grade of 2.08%, sulfur content of 36.12%, sulfur recovery of 85.79%, and cobalt recovery and 84.77% were obtained by ...
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Hydrochlorination of Copper-Cobalt Alloy for Efficient
Global demand for cobalt is proliferating owing to the transition towards a low carbon economy. Recovery of cobalt from copper-cobalt alloy ensures the sustainability of the cobalt resources as it contains significant amounts of cobalt. This paper proposes a method for hydrochlorination roasting of copper-cobalt alloy with HCl gas followed by …
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Pre-Reducing Process Kinetics to Recover Metals from Nickel
The main problem for metals recovery, such as nickel, copper, and cobalt, from these ores is the high concentration of iron. Limonite layer, the first layer of the nickel laterite ore and processed by high-pressure acid leaching or atmospheric acid leaching using sulfuric acid, has 40–50% of iron approximately, while nickel concentration is 0 ...
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Recover Cobalt in Copper Leach Solution by Ion Exchange
A preliminary economic evaluation of the process to recover cobalt from spent copper leach solution was prepared by the Bureau's Process Evaluation Group. The estimated capital cost for a plant processing 10,000 gpm of feed solution containing 26 ppm Co was $29.9 million based on first quarter 1986 costs.
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Sulfide Ore Treatment Gold
A procedure was developed for recovering gold, silver, cobalt, copper, and zinc from a massive sulfide ore by a hydro-metallurgical process. The procedure consists of (1) oxygen pressure leaching; (2) iron, arsenic, and copper removal from the leach solution by precipitation; (3) selective extraction of cobalt and zinc from solution; (4) electro …
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Production of cobalt from copper-cobalt ores on the
The copper and cobalt recovery reached 88.2% and 82.5%, respectively, at room temperature, with a leaching time of 4 h, a pulp density of 33%, an acidity of 178 g/L, and no reductant. The Cu and ...
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Mining our green future | Nature Reviews Materials
Metrics. The green energy revolution is heavily reliant on raw materials, such as cobalt and lithium, which are currently mainly sourced by mining. We must carefully evaluate acceptable supplies ...
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A Review of Nickel, Copper, and Cobalt Recovery by Chelating …
Copper and cobalt can be found on nickel laterite ores, and cobalt can be found also on copper ores, and many contaminants such as iron, aluminum, and magnesium are associated with these ores. In hydrometallurgical process, a purification step is necessary after leaching due to the presence of these impurities. Chelating resins are …
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Recovery of Cobalt, Copper and Zinc from Küre-Kastamonu …
A study on the recovery of copper, cobalt, and zinc from copper smelter and converter slags by roasting with sulfuric acid has been conducted. Acid roasting of slags followed by hot water leaching ...
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Recovery of valuable metals from copper slag | SpringerLink
The copper smelting process produces plenty of copper slag every year, which is a hazardous solid waste, but a secondary resource. In the present study, the extraction of copper, nickel, and cobalt from copper slag was investigated through the process of sulfation roasting–water leaching and the process of sulfation roasting–sulfate …
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An approach of cobalt recovery from waste copper converter …
The recovery of copper and tin was also studied. The phase transformation during reduction process was clarified by X-ray diffraction and Scanning electron microscope-energy dispersive spectrometer analyses. After the reduction performed at 1250 °C, the copper, cobalt and tin were recovered in a copper-cobalt-tin-iron alloy.
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World production and possible recovery of cobalt from the
World production and possible recovery of cobalt from the Kupferschiefer stratiform copper ore Paulina M. Pazik1,2,a, Tomasz Chmielewski2, Hylke J. Glass1, and Przemyslaw B. Kowalczuk 2 1Camborne School of Mines, University of Exeter, Tremough Campus, Penryn, Cornwall, TR10 9EZ, UK 2Wroclaw University of Science and Technology, Faculty of …
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Leach Solution Using Continuous
copper. At this point, a cobalt recovery circuit could be utilized to extract and recover cobalt from the spent copper leach solution; the barren liquor would be recycled to the leaching dump. Recovery of cobalt from spent leach solutions has significant advantages over methods for recovering cobalt from pri
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REDUCTIVE-SULFURIZING COPPER SMELTING AND …
evidently increased the recovery of copper and cobalt, peaking at 6 wt.% of coke where about 88.61% Co and 92% Cu and less than 34.42% Fe were recovered. Then metals recovery decreased sharply after a steady recovery from 6 wt.% to 10 wt.% coke addition. The results suggested that an adequate reductive
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Flowsheet Options for Cobalt Recovery in African …
African Copperbelt operations have traditionally focused on copper production; however, it has now become imperative to also consider cobalt recovery …
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Investigation of Flotation Conditions for Cobalt …
Recovering valuable metals from tailings not only provides a source of income but also helps conserve natural resources, thus reducing the environmental impact of mining activities. This study aimed to …
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Comprehensive Review on Metallurgical Upgradation Processes …
The recovery rate of nickel, cobalt, and copper can reach 90%, 50%, and 88%, respectively, through ammonia leaching process. It can be realized that the resource utilization of sulfur in nickel sulfide concentrate by pressure ammonia leaching. Meanwhile, it indicates that ammonia leaching process is suitable for the treatment of refractory ...
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Recovery of Cobalt and Copper From Complex …
cobalt recovery. No attempt was made to recover the copper. Because of unfavor able economic conditions, the mine was put on caretaker status in 1982. In 1979, the Bureau …
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Recovery of cobalt and copper from single- and co …
Copper was found to be easily removed which was possibly brought about by precipitation-adsorption mechanism. The extent of the co-removal of cobalt with …
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Minerals | Free Full-Text | Processing of Waste Copper Converter …
An innovative, economical, and environmentally sound hydrometallurgical process has been proposed for recovering Cu, Ni, and Co from copper-rich converter slag by organic acids. In the leaching experiments, the effects of organic acid concentrations, pulp density, temperature, and time were investigated. Optimum recovery of 99.1% Cu, …
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New approaches for extracting and recovering metals
Harnessing the abilities of some species of prokaryotic microorganisms to catalyse the oxidative dissolution of sulfide minerals and thereby to facilitate the extraction of metals is a global biotechnology, used mostly to recover some base including copper, nickel, cobalt and zinc, and precious metals such as gold.
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Flowsheet Options for Cobalt Recovery in African Copper–cobalt
African Copperbelt operations have traditionally focused on copper production; however, it has now become imperative to also consider cobalt recovery from these ores. A plethora of processing routes is possible. Most hydrometallurgical flowsheets recover cobalt from the raffinate of the low-grade copper solvent-extraction circuit.
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Minerals | Free Full-Text | Geometallurgy of Cobalt Black Ores
Copper-cobalt deposits in the Central African Copperbelt belong to the Sediment-Hosted Stratiform Copper (SHSC) type and are situated in the Neoproterozoic Katanga Supergroup. This paper describes in detail the geology, geochemistry and hydrometallurgy of cobalt, with a special focus on the Black Ore Mineralised Zone …
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Geometallurgy of cobalt ores: A review
Skutterudite and safflorite from the gravity tailings of Bou Azzer have been recovered by flotation under complex conditions to ensure successful cobalt recovery. Copper sulphate is used as an activator, sodium sulphide as a sulphidisers and amyl xanthate as a collector (Formanek and Lauvernier, 1963). 4.4. Leaching of cobalt minerals
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An approach of cobalt recovery from waste copper …
After the reduction performed at 1250 °C, the copper, cobalt and tin were recovered in a copper-cobalt-tin-iron alloy. The addition of pig iron improved cobalt …
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