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Copper Mining and Extraction Sulfide Ores

The smelter for produces sulfur dioxide gas. This is scrubbed from the flue gases to make sulfuric acid for leaching copper from oxide . Scrubbing sulfur dioxide also protects the environment. For example: FeOs + SiO 2 s→ FeO.SiO 2 slag This …

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  • The Extraction of Copper - Chemistry LibreTexts

    The Extraction of Copper - Chemistry LibreTexts

     · such as chalcopyrite CuFeS_2 are converted to copper by a different method from silicate, carbonate or sulfate . Chalcopyrite also known as copper pyrites and similar are the commonest of copper. The typically contain low percentages of copper and have to be concentrated before refining e.g., via ...

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  • Mining and Extraction: Oxide Ores - processes for ...

    Mining and Extraction: Oxide Ores - processes for ...

    Extraction of is covered in more detail in Copper Mining and Extraction: 11–14, but is introduced here because an important by-product of this process is used for the extraction of oxide . Pyroprocessing Provides Acid for Leaching. The process used to treat copper begins at the mine ...

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  • Why are sulphide ores converted to oxide form before ...

    Why are sulphide ores converted to oxide form before ...

    Text Solution. Solution : Sulphide ores thermodynamically more stable than and hence cannot be converted by using coke general and common reducing agent as reducing agent. Moreover is more volatile and thermodynamically more stable than . Thus all means that of a metal sulphide is not compensated by the energy of reaction of metal sulphide with coke. <br> Hence, it is better to convert …

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  • What is auto reduction? Provide a handful of examples. - Quora

    What is auto reduction? Provide a handful of examples. - Quora

     · Autoreduction or air reduction is very popular reaction in metallurgy. It is a process in which sulphide ores of less electropositive metals like Hg, Pb, Cu etc., are as to convert part of the ore into oxide or sulphate which then reacts with the remaining of sulphide ore in absence of air to give the metal and sulphur dioxide.

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  • Roasting metallurgy -

    Roasting metallurgy -

    Roasting is a process of heating of to a high temperature in presence of air. It is a step of the processing of certain .More specifically, roasting is a metallurgical process involving gas–solid reactions at elevated temperatures with the goal of purifying the metal components. Often before roasting, the has already been partially purified, e.g. by froth flotation.

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  • Copper Ore Types: Sulfides vs. Oxides | An Investors ...

    Copper Ore Types: Sulfides vs. Oxides | An Investors ...

    Copper are typically the most profitable copper type to mine. That is because they have high copper content, and the copper in them can more easily be separated from unwanted ...

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  • Minerals & Ores & The Extraction Of Minerals ...

    Minerals & Ores & The Extraction Of Minerals ...

    Minerals & & The Extraction Of Minerals Environmental Chemistry | FuseSchoolLearn the basics about Minerals and from a perspective of the Chemica...

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  • Auto reduction process is used for the extraction of:

    Auto reduction process is used for the extraction of:

    - or air is a very popular reaction in metallurgy. It is a process in which of less electropositive metals like Hg, Pb, Cu etc., are heated in the air so as to convert part of the into oxide or sulphate which then reacts with the remaining of in absence of air to give the metal and sulphur ...

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  • the extraction of is CU from CU 2S which substance is used ...

    the extraction of is CU from CU 2S which substance is used ...

    CU 2S is the sulphide Ore. sulphide Ores are extracted from roasting which is done in excess air. does first the odds are converted into their oxides by burning in the excess air and then these oxides are again reduced with carbon which then converts into pure metal …

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  • Auto reduction process is used in the extraction of A Cu ...

    Auto reduction process is used in the extraction of A Cu ...

    This process is also called autoreduction process or air reduction process. The sulphide ores of less electropositive metals like Hg, Pb, Cuetc., are heated in air as ore into oxide or sulphate which then reacts with the remaining sulphide ore to give the metal and sulphur dioxide.

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  • explain the auto self reduction of sulphide ores - Brainly.in

    explain the auto self reduction of sulphide ores - Brainly.in

     · Autoreduction or air reduction is very popular reaction in metallurgy. It is a process in which sulphide ores of less electropositive metals like Hg, Pb, Cu etc., are as to convert part of the ore into oxide or sulphate which then reacts with the remaining of sulphide ore in absence of air to give the metal and sulphur dioxide.

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  • US3186833A - Method for reducing copper oxide - Google Patents

    US3186833A - Method for reducing copper oxide - Google Patents

    US3186833A US249036A US24903663A US3186833A US 3186833 A US3186833 A US 3186833A US 249036 A US249036 A US 249036A US 24903663 A US24903663 A US 24903663A US 3186833 A US3186833 A US 3186833A Authority US United States Prior art keywords copper oxide reaction cuprous Prior art date 1963-01-02 Legal status The legal status is an assumption and is not a legal …

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  • Copper extraction -

    Copper extraction -

    All primary of copper sulfides, and most concentrates of secondary copper sulfides being chalcocite, are subjected to smelting.Some vat leach or pressure leach processes exist to solubilise chalcocite concentrates and produce copper cathode from the resulting leachate solution, but this is a minor part of the market.. Carbonate concentrates are a relatively minor product ...

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  • In the extraction of copper from its sulphide ore, the ...

    In the extraction of copper from its sulphide ore, the ...

    A slag is an easily fusible material which is formed when gangue still present in the roasted or the calcined combines with the flux. For example, in the metallurgy of iron, CaO flux combines with silica gangue to form easily fusible calcium silicate CaSiO 3 slag. CaO + SiO 2 → CaSiO 3 slag

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  • Sulfide Ores - an overview | ScienceDirect Topics

    Sulfide Ores - an overview | ScienceDirect Topics

    Unlike mineral , iron does not provide an energy source e.g., ferrous and sulfur compounds for the oxidative growth of bioleaching microorganisms however, iron-reducing bacteria, which gain energy by the dissimilatory of ferric iron to ferrous iron, may be useful in upgrading iron …

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  • Sulfide -

    Sulfide -

    British English also is an inorganic anion of sulfur with the chemical formula S 2− or a compound containing one or more S 2− ions. Solutions of salts are corrosive. also refers to chemical compounds large families of inorganic and organic compounds, e.g. lead and dimethyl . Hydrogen H 2 S and bisulfide SH − are the conjugate ...

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  • Explain the following:Partial roasting of sulphide ore is ...

    Explain the following:Partial roasting of sulphide ore is ...

    Partial roasting of sulphide ore is done in the metallurgy of copper. Partial reduction of give copper oxide which further reacts with copper sulphide to show auto reduction. 2CuS + 3O 2 …

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