Sulfate roasting copper-cobalt sulfide concentrates
Sulfate roasting copper-cobalt sulfide concentrates. L. Theys, L. Lee. Published 1 February 1958. Engineering, Chemistry, Materials Science. JOM. This is the story of the successful application of fluidized bed technique to a series of reactions taking place within narrow ranges of operating conditions, and the steps by which Union Miniere ...
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Innovative green approach for the selective extraction
Hazardous selenium sludge is a critical intermediate byproduct of the comprehensive recovery of selenium from copper anode slime, and the sustainable extraction of Se is an important basis for the development of high-tech Se-containing materials. Unfortunately, current processes are constrained by complex procedures, …
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Cobalt Recovery Through Sulphating Roast of Cu/Co …
Abstract. In 2006, Hatch was awarded a contract to supply fluidized bed technology for the Katanga Mining Limited (KML) copper-cobalt processing project in D.R. Congo [1]. The new roaster and the ...
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Sulphating roasting of copper sulphide concentrates
Search. Quicklinks. Suggestion for acquisition; classic Library Catalogue (OPAC) Common Union Catalogue (GVK)
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Fluid-bed roasting reactions of copper and cobalt sulfide
A study of reactions in the fluid-bed roasting of Union Minière's chalcocite concentrates has made it possible to achieve optimum recovery of copper and cobalt during the acid leaching of roaster calcines. ... Cobalt Recovery Through Sulphating Roast of Cu/Co Concentrate of Katanga Mining ... R. Fluid-bed roasting reactions of copper …
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Galvanic sludge metals recovery by pyrometallurgical and
This paper reports a study, on laboratory scale, of sulphating roasting to perform a treatment for a selective recovery of valuable metals from galvanic sludge. The target metals were copper, zinc and nickel and the sulphating agent used was pyrite, from coal wastes. The particularity of this treatment is the use of two hazardous wastes as raw ...
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Recovery of cobalt, nickel and copper from converter slag …
When sulphuric acid is used as the sulphating agent, satisfactory con- ditions were found to be: stoichiometric requirement of sulphuric acid, roasting temperature of 150 for 60 min, resulting in recovery of more than 95% cobalt, nickel and copper and 70% iron.
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Cobalt Recovery through Sulphating Roast of Cu/Co …
Abstract. In 2006, Hatch was awarded a contract to supply fluidized bed technology for the Katanga Mining Limited (KML) copper-cobalt processing project in D.R. Congo [1]. The new roaster and the ...
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Sulfatizing Roasting and Leaching of Cobalt Ores at …
The Outokumpu Oy Cobalt Plant processes nickel, copper, and zinc bearing cobaltiferrous pyrite concentrate. Main operations: sulfatizing roasting, leaching, solution purification and recovery of cobalt metal. Roasting is done in fluidized beds, most of the material being fed as calcine. Green concentrate is used only for the heat requirements, …
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Selective separation and recovery of selenium from copper …
In view of the difficulty of arsenic-antimony-bismuth recovery of Se and other valuable elements in the process of copper anode slime treatment, this paper adopts one-stage composite leaching of arsenic-antimony-bismuth and two-stage sulfation roasting for high arsenic-antimony-bismuth copper anode slime to recover selenium to realize …
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Fluid-bed roasting reactions of copper and cobalt sulfide …
Fluid-bed roasting reactions of copper and cobalt sulfide concentrates. F. J. Thoumsin, R. Coussement. Published 1 October 1964. Chemistry, Materials Science. JOM. A study of reactions in the fluid-bed roasting of Union Miniere's chalcocite concentrates has made it possible to achieve optimum recovery of copper and cobalt during the acid ...
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Sulphation roasting studies on synthetic copper–iron …
When the sulphide mixture was roasted with steam–oxygen in the absence of ferric oxide, the copper sulphate formation was up to 83.5% (Fig. 14), whereas with the catalytic addition of 10% Fe 2 O 3, optimum copper sulphate formation (92.7%) was attained. The effect of temperature on roasting of the sulphide mixture was studied with …
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Selective separation and recovery of selenium from copper …
From the analysis of the XRD pattern of the residue shown in Fig. 1, it can be clearly seen that the physical phases of copper anode slime are relatively complex, and the main phases included sulfate, oxide, sulfide, intermetallic compounds, and metal elements.The sulfates included barium sulfate and lead sulfate, and the oxides include …
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Innovative green approach for the selective extraction of …
1. Introduction. Selenium (Se) is a strategic rare metal and a necessary trace element for humans due to its scarcity in the earth and its excellent properties, respectively [1], [2], [3]; thus, Se has been increasingly studied as a promising candidate material for future optoelectronic applications [4].The European Commission has identified selenium …
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Sulfate roasting copper-cobalt sulfide concentrates
Sulfation roasting, a common activation technique, is a potential method for cleaner production of nickel from complex low-grade ores. In this study, nickel oxide–sulfide …
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Sulphation roasting process for the extraction …
Selective sulphating of the valuable minerals is an important condition for the subsequent leaching stage. The dissolved copper and cobalt are recovered by solvent extraction and …
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(PDF) Thermodynamic Investigation of the Sulphation Roasting …
Additionally, copper and nickel were inputted as Cu2S and NiS, respectively. (a) Predominance area diagram for the Fe-Zn-O-S system at 600 °C. (b) Predominance area diagram for the Fe-Zn-O-S ...
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Sulphating roasting of copper-cobalt concentrates
Laboratory-scale sulphation roasting testwork for copper and cobalt production. The results showed that the sulphation of cobalt and copper oxides is fairly …
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Sulphation Roasting Studies on Synthetic Copper-Iron Sulphides with
It was also observed that the mixture of copper–iron sulphides yielded a higher amount of copper sulphate (92.7%) than that obtained (40.0%) from copper sulphide alone in the presence of 10 wt ...
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Copper processing
Copper processing - Roasting, Smelting, Converting: Once a concentrate has been produced containing copper and other metals of value (such as gold and silver), the next step is to remove impurity elements. In older processes the concentrate, containing between 5 and 10 percent water, is first roasted in a cylindrical, refractory-lined furnace …
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Design of Copper-Cobalt Sulphating Roasters for …
Abstract. In late 2006, Hatch was awarded a contract to supply fluid bed technology for the Katanga Mining Limited (KML) copper-cobalt processing project in D.R. Congo (DRC). The new roasting ...
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Application of Sulfide Copper Ores Oxidizing Roasting
The technology of joint reduction and sulfiding smelting of roasted copper ores and calcined saprolite ores is a promising way to use poor and mineral raw materials that are hard to enrich and to reduce SO2 emissions into the atmosphere. ... "Sulphating roasting of copper-cobalt concentrates," J. of the Southern African Institute of Mining ...
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The Sulphating Roasting of Copper Sulphide Concentrates
It is shown that factors associated with conditions whIch are thermodynamically favourable for the formation of CuS04 in roasting lead to high copper recoveries on leaching. One of these factors is the ratio of the air to solids used for roasting. This can be varied widely without loss of temperature control in the sulphating roasting of many Australian …
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Sulphating roasting of copper-cobalt concentrates | Health
Sulphating roasting of copper-cobalt concentrates Author(s) Guentner, J; Hammerschmidt, J Year. 2012 Volume. 112 Issue. 6 Page Numbers. 455-460 Web of Science Id. WOS ... Outotec has developed roasting solutions for copper, gold, zinc, lead, molybdenum, and pyrite ores. The continuously expanded and upgraded research …
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Phase transformation and roasting kinetics of cobalt …
In the roasting process of copper and cobalt ore with sodium sulfate added, sodium sulfate will react with iron sulfate which is the first oxidized in copper and …
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Cobalt Recovery Through Sulphating Roast of Cu/Co …
The new roaster and the associated solids and off-gas treatment plants are part of the revitalization of an existing facility, which was historically one of the largest cobalt and copper producers in the world. The sulphide ore fed to the roasting plant is treated under sulphating roast conditions, followed by hydrometallurgical extraction.
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COBALT RECOVERY THROUGH SULPHATING …
The 75 wt% so lids roaster feed slurry contains approximately 40% copper and 4% cobalt (dry basis). Roasting ofthe sulphide slurry feed produces a dried calcine product, in the …
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The recovery of copper and zinc from a sulphide …
International Journal of Mineral Processing, 35 (1992) 225-238 225 Elsevier Science Publishers B.V., Amsterdam The recovery of copper and zinc from a sulphide concentrate using sulphate roasting, acid leaching and solution purification Cesar J. Ferrona and Jacques De Cuyperb aLakefield Research, Lakefield, Canada ~ L TM, …
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Comprehensive Study on the Mechanism of …
Zinc plant residue (ZPR) is a secondary material generated during hydrometallurgical zinc production that contains considerable contents of valuable elements such as Zn, Cu, Fe, Pb, Cd, Ag, In, Ga, Tl. …
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Sulfation roasting characteristics of copper-bearing …
Copper and zinc extraction by ammoniacal leaching from microwave-roasted Cu-Zn-Pb sulfidic tailings followed by recovery of copper and zinc by ion flotation and precipitation. View Show abstract
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