Nickel | Geoscience Australia

Most mined derives from two types of deposits that form in very different geological environments: magmatic deposits, where the principal mineral is pentlandite [Ni,Fe 9 S 8], and laterites, where the principal minerals are nickeliferous limonite [Fe,NiOOH] and garnierite a hydrous silicate. Magmatic ...

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  • PENTLANDITE Iron Nickel Sulfide

    Pentlandite is an important of . However, it does not produce good crystals and is generally only found in massive form. It is commonly associated with other sulfides such as pyrite, chalcopyrite and pyrrhotite in basic igneous rock intrusions. These bodies are probably produced through magmatic segregation.

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  • Mining Industry | Copper Sulfide Ore and Flotation Process ...

    1 Types of copper 1 Single copper mineral characteristic is relatively simple, and the only useful component that can be recycled is copper. The gangue minerals are mainly quartz, carbonate and silicate. 2 Copper-sulfur Called copper-bearing pyrite. In addition to copper minerals, iron can be recovered, and the main mineral of sulfur is pyrite.

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  • Solvent extraction as an enabling technology in the nickel ...

    application in the industry and it is from that point of view that some of the major advances are reviewed below. Coming of age in copper solvent The classical route for Cu recovery from involves concentration, smelting and electrorefining. It is well suited when the also contains appreciable ...

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  • Nickel processing | Britannica

    With nickel found in two radically different types of ore, it is not surprising that the mining methods differ. Sulfide deposits are usually mined by underground techniques in a manner similar to copper, although some deposits have been mined using open pits in the early stages.

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  • Nickel: smelting, producing-Metalpedia

    Most sulfide deposits have traditionally been processed by concentration through a froth flotation process followed by pyrometallurgical extraction. In hydrometallurgical processes, nickel sulfide ores undergo flotation differential flotation if Ni/Fe ratio is too low and then smelted.

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  • Enhanced methods for nickel recovery from low-grade ores ...

    amount of bleed and amount of replacement acid is controlled in order to keep content below 10%. This bleed stream is then further treated typically by neutralization to precipitate contained metals. can be recovered from bleed stream of a copper electrorefinery.

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  • Cobalt extraction -

    A feed of matte and sulfide concentrate containing approximately 0.4% cobalt and 30% sulfur is pressure leached at elevated temperature and pressure in an ammoniacal solution to produce a solution of nickel, copper and cobalt. By boiling away the ammonia copper …

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  • Solid State Extraction of Nickel from Nickel Sulfide ...

     · The conventional and refining of Ni concentrates is an effective strategy for extracting Ni from sulfide ores. However, during the process, sulfur is oxidized to sulfur dioxide SO 2, which poses a significant environmental hazard.

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  • Copper Extraction from Sulfide Ores - Latest Contents

    This process is used for the of copper from low grade . In this process, the crushed and ground in bulk about 100,000 tons is exposed to air and water in big tanks. The air in the presence of water gradually oxidizes copper and iron sulphides to their surphides. The process is completed in about one year.

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  • Nickel processing - Extraction and refining | Britannica

    From sulfide ores. Sulfide ores are crushed and ground in order to liberate nickel minerals from the selective flotation. In this process, the ore is mixed with special reagents and agitated by mechanical and pneumatic devices that produce air bubbles.

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  • Copper extraction -

    Copper refers to the methods used to obtain copper from .The conversion of copper consists of a series of physical and electrochemical processes. Methods have evolved and vary with country depending on the source, local environmental regulations, and other factors.. As in all mining operations, the must usually be beneficiated concentrated.

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  • NICKEL AND COBALT ORES: FLOTATION

    The usual method of nickel extraction from sulRde ores is through the production of nickel matte after enriching the nickel content of the ore. This is com- monly carried out by magnetic separation, Sotation, or a combinationof both after the ore is comminuted to below 200 m in size.

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  • Copper Mining and Extraction Sulfide Ores

    Copper can be extracted from by: Underground: sinking a vertical shaft into the Earth to an appropriate depth and driving horizontal tunnels into the . Open pit: 90% of is mined by this method. near the surface can be quarried after removal of the surface layers. The is treated with dilute sulfuric acid.

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  • The Extraction of Copper - Chemistry LibreTexts

     · copper from . The method used to extract copper from depends on the nature of the . 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 ...

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  • Leaching of Low Grade Nickel Sulphide Serpentinite Ores: A ...

    A low-grade disseminated serpentinite from W.A. had a relatively high permeability after drying. Various techniques indicated that the permeability resided within a fine network of fibrous vein- lets and especially within coarse cracks along which the sulphides lay. The minerals were therefore open to selective by chemical leaching.

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