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Nov 15, 2021· The experiments included (i) T hermal decomposition of pyrite concentrate at a temperature of 660 – 700° C and a duration of 60 minutes, an oxygen flow rate of 30 – 50% of the stoichiometric; (ii) Leaching of the cinder with a HCl solution at a temperature of 90°C, liquid: solid = 8:1, pH 2, 7 and a duration of 60 minutes; (iii) F ...
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Nov 01, 2022· Adding corrosion inhibitors such as sodium silicate and lime to inhibit gangue minerals, a mixed copper-cobalt concentrate can be obtained. 3. Iron-cobalt ore extraction process. The main cobalt-bearing minerals in iron-cobalt deposits are generally pyrite, pyrrhotite and a small amount of chalcopyrite. Gangue minerals mainly include quartz ...
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Process for the selective dissolution of cobalt from cobaltite-pyrite concentrates Info Publication number CA1193107A. ... hydrometallurgical process jarosite Prior art date Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the ...
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While all of these processes exist in mining around the world - this is the first time they have been brought together in an innovation that is unlocking cobalt from pyrite in these steps: Concentrate . Ore is crushed to approx. 1 mm, and a pyrite concentrate is recovered using a combination of gravity and flotation unit operations. Calcine ...
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The hydrometallurgical process comprises pressure leaching of the cobaltite-pyrite concentrates with a sodium chloride or sodium sulphate solution at a temperature in the range of 130°-160° C. and under oxygen partial pressures in the range of 75-200 psi to solubilize at least 90% of the cobalt content, while simultaneously precipitating most ...
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Oct 09, 2020· The contained cobalt is found within the matrix of the pyrite and can be concentrated into a by-product as part of the copper recovery process, with the potential to generate approximately 2700 tpd of pyrite concentrate grading an estimated 0.60% cobalt and 0.40% copper.
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Jan 01, 1996· The well-known technological flow charts for cobalt and nickel recovery from the tailings of sulphide-magnetite ores dressing (to give pyrite concentrate) and from oxidised nickel ores, are not profitable at the existing prices for metals, but are not worthless and require significant capital investments for the realisation of their value.
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Feb 10, 2021· The process is divided into concentration, calcining, leaching and product recovery with the COB pilot plant to process 90 tonnes of ore samples which have been collected from prior drilling programs. ... Western Australia, processing the first 7-tonne portion of pyrite concentrate. Cobalt Blue expects the calcining of this sample to be ...
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A conceptual flow diagram is shown in Figure 1. ... on the inside of the spiral is the heavy cobalt-pyrite concentrate, while lighter gangue (waste) particles migrate to the outside of the slurry path. ... Harper International (USA) were engaged to test the thermal treatment process for cobalt-pyrite concentrate using a continuous rotary ...
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A massive cobalt-containing pyrite orebody occurs in banded albite-quartz-biotite rocks at Thackaringa, some 30 km SW of Broken Hill. Because of the world-wide shortage of cobalt during the late 1970s, serious consideration was given to the development of a suitable flow-sheet to recover the cobalt from this ore. Details of a pressure leaching process in …
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Cases Study - Cobalt Ore Mining. Raw mineral description: Mineral composition: copper 1.8-2% and don't kown the cobalt content. Customers requirements: the lead and barite grade should reach 25-30%. The concentrate can be a copper-cobalt mixed concentrate. And raw ore only needs to be crushed below 2mm.
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Pyrite Uses. Pyrite is used to create iron sulfate that is used to make nutritional supplements, ink, lawn conditioner, water treatment and flocculation, moss killer, and many other chemical processes. Iron sulfate which comes from pyrite is used to treat iron-deficiency anemia. Some types of pyrite contain enough microscopic gold to warrant ...
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A mixed cobalt concentrate containing 10% Co could be obtained by combination of gravity and flotation from a feed containing 0.9% Co. Cobaltite can be separated from pyrite, chalcopyrite and pyrrhotite by initial separation of chalcopyrite, followed by an acidic bulk flotation of all the remaining sulfides using amyl xanthate.
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pyrite concentrates. The experiments included (i) Thermal decomposition of pyrite concentrate at a temperature of 660 - 700° C and a duration of 60 minutes, an oxygen flow rate of 30-50% of the stoichiometric; (ii) Leaching of the cinder with a HCl solution at a temperature of 90°C, liquid:
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These were chloridizing roasting, chloridizing volatilization and sulphating roasting processes. For chloridizing roasting, the pyrite concentrate was dead roasted first to adjust sulfur content to about 4%. Then, the pyrite cinder obtained was mixed with NaCl and pyrite concentrate, and roasted to produce soluble chlorides of copper and cobalt.
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In this study, oxidizing roasting, segregation roasting, and magnetic separation are used to extract cobalt and iron from refractory Co-bearing sulfur concentrate. The Co-bearing sulfur concentrate containing 0.68% Co, 33.26% Fe, and 36.58% S was obtained from V-Ti magnetite in the Panxi area of China by flotation. Cobalt pyrite and linneite were the Co …
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The problem of recovery of cobalt products from poorly oxidised nickel ores (Kempirsaisk deposit) and pyrite concentrates with a low content of cobalt (Sokolovsk-Sarbaisky deposit) has not been solved to the present time in Kazakstan. The balance reserves of nickel ore of the Kempirsaisky deposit make up more than 35 million tons with a nickel content of 1.13 …
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Bioleaching of a Cobalt-Containing Pyrite in Stirred Reactors: a Case Study from Laboratory Scale to Industrial Application ... This process is experimental and the keywords may be updated as the learning algorithm improves. ... (1993) Effect of carbon dioxide concentration on the bioleaching of a pyrite-arseno-pyrite ore concentrate ...
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