oxidation roasting of a copper sulfide ore

Copper mining. Chemical reactions.

Copper mining. Chemical reactions.

Roasting: In roasting, we: change some of the CuFeS 2 to copper oxide remove some of the sulphur as sulphur dioxide. We do this by heating the concentrated ore from froth floatation. It is heated to betweem 500 °C and 700 °C in air. The product from the roaster is called calcine. It is a solid mixture of oxides, sulphides and sulphates. One reaction that takes place is: 2CuFeS 2 (s) + 3O 2 ...

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Copper Smelting Chemistry Tutorial

Copper Smelting Chemistry Tutorial

Roasting the ore containing chalcopyrite, CuFeS 2, ... eg, copper(I) oxide can be produced from copper(I) sulfide: 2Cu 2 S + 3O 2(g) → 2Cu 2 O + 2SO 2(g) Smelting with Fluxes *: converts the calcine to matte (a mixture of copper sulfides and iron sulfides) Calcine is heated to over 1200 o C with fluxes such as silica (SiO 2) and limestone (CaCO 3). Calcine melts and its compounds react with ...

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What is the sulphide ore of copper?

What is the sulphide ore of copper?

Copper is a metal that is present low in the reactivity series. It mainly occurs in nature in the form of sulphide ore which can be converted into the corresponding oxide simply by heating in the absence of air, a process known as roasting. The obtained metal is then purified by electrolytic refining.

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Sulfatizing roasting for copper and cobalt production

Sulfatizing roasting for copper and cobalt production

Sulfatizing roasting belongs to a production process for copper and cobalt from sulfidic ores. Figure 1 shows a simplified block flow diagram of the loion of the roasting stage in the entire process map. The objective of roasting is a selective sulfation of copper and cobalt. Iron is fully oxidized to ferric oxide. The sulfates are dissolved ...

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 | Copper ...

| Copper ...

LEACHING OF A ROASTED COPPER SULFIDE ORE. Rosselle Kim P. Castillano, Wilfredo T. Gatdula Jr., Gin Derick L. Magno, Jhunalyn H. Parantar METE 157N: HYDROMETALLURGY LABORTORY. ABSTRACT Sulphide ores of copper are insoluble in dilute sulphuric acid leaching solutions, but a very high extraction can be obtained if the copper ore is in the oxidized condition.

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Copper Oxide Ore

Copper Oxide Ore

Lead oxide ore, mainly in the form of cerussite and anglesite, is originated from primary lead sulfide ore which gradually changed its property under efflorescence and carbonate salt environment. In a lead deposit, lead oxide and lead sulfide usually is detected at the upper layer and lower layer separately. The common mined lead oxide ore ...

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The roasting temperature of ore, such as sulfide concentrate, is controlled by feeding water and air under pressure to at least one spray nozzle loed relative to a roasting zone containing the ore, means being employed for selectively varying the ratio of water and air fed to the nozzle in accordance with the temperature to be desired and maintained in the roasting zone.

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A Brief Intriduction to Copper Oxide Ores | Fote Machinery

A Brief Intriduction to Copper Oxide Ores | Fote Machinery

 · As the world's demand for copper continues to grow, the resources of primary copper sulfide ore that are easy to mine and beneficiate have gradually decreased. It's urgent to explore and utilize copper oxide ore resources to mitigate the shortage of copper resources. The more you know about the copper oxide ore, the bigger chance of choosing a suitable beneficiation method, which is of .

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Copper Mining and Extraction Sulfide Ores

Copper Mining and Extraction Sulfide Ores

From the formula, it is clear that iron and sulfur have to be removed in order to produce copper. The roasting process: changes some of the CuFeS 2 to copper oxide; removes some of the sulfur as sulfur dioxide; This is done by heating the concentrated ore from froth flotation. It is heated to between 500 °C and 700 °C in air. The product from ...

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Copper Mining and Processing: Processing Copper Ores ...

Copper Mining and Processing: Processing Copper Ores ...

Copper processing is a complied process that begins with mining of the ore (less than 1% copper) and ends with sheets of % pure copper called hodes, which will ultimately be made into products for everyday most common types of ore, copper oxide and copper sulfide, undergo two different processes, hydrometallurgy and pyrometallurgy, respectively, due to the different ...

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Roasting and Leaching Bulk CopperZinc Sulfide ...

Roasting and Leaching Bulk CopperZinc Sulfide ...

the zinc sulfide in the ~harge to zinc oxide and the copper sulfide to copper oxide. Of course, to change zinc sulfide to zinc oxide the proper conditions must be maintained, ~ch as temperature and draft control. The roasting of copper sulfide offers few difficulties, the main difficulty being that of the formation of ferrites (Cn20 • Fe203)

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Oxidation Roasting of Sulfide Ore | Sulfur | Sulfide

Oxidation Roasting of Sulfide Ore | Sulfur | Sulfide

SULFUR DETERMINATION USING GRAVIMETRIC METHOD. OXIDATION ROASTING OF COPPER SULPHIDE ORE Romelyn B. Maandig METE 159: PYROMETALLURGICAL ENGINEERING LABORATORY. ABSTRACT Roasting converts the sulfide into the oxide form producing copper oxide. At the same time sulfiding occurs where copper sulfide is formed. Copper sulfide is insoluble to water and slightly soluble to HCl which .

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Kinetics of oxidation of copper sulfide

Kinetics of oxidation of copper sulfide

behavior during roasting has also been observedby both Peretti1 and However, thereseems to be some uncertainty regardingthe ratedetermining step involved in the oxidation. For instance, according to Peretti,1 a diffusive step involving the diffusion of the reacting gas is rate controlling, whereasHenderson2 maintains chemical reaction at the interface, viz., formation of Cu20, .

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Recovery of Copper from Copper Sulfide Concentrate by ...

Recovery of Copper from Copper Sulfide Concentrate by ...

Sulfation Roasting, Copper Sulfide Concentrate, Copper Extraction 1. Introduction In the last three decades, the economic conditions and the increasingly stringent environmental legislation worldwide have led metallurgical industry more difficult to develop. In addition, copper resources become increasingly depleted and the number of lowgrade refractory copper ore grows day after day ...

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Kinetics of oxidation of copper sulfide

Kinetics of oxidation of copper sulfide

behavior during roasting has also been observedby both Peretti1 and However, thereseems to be some uncertainty regardingthe ratedetermining step involved in the oxidation. For instance, according to Peretti,1 a diffusive step involving the diffusion of the reacting gas is rate controlling, whereasHenderson2 maintains chemical reaction at the interface, viz., formation of Cu20, to ...

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[Solved] Which of the following process of converting ...

[Solved] Which of the following process of converting ...

it is basically a process of metallurgy where ore is converted into its oxide by heating it below its melting point in the presence of excess air. Hence, Option 3 is correct. Roasting is a method that is used for converting sulfide ores. During roasting, moisture and nonmetallic impurities in the form of volatile gases are released. The process of roasting consists of solidgas thermal ...

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