Sulfide Ores - an overview | ScienceDirect Topics

1.1.2 Extraction of Nickel and Cobalt from Sulphide Ores Sulphide ores were mostly created by i the intrusion of molten magma from the mantle into the crust of the earth and ii the formation of localized metal-rich sulphide ore bodies by sequential solidification and/or hydrothermal leaching and precipitation.

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

    The metal is mainly extracted from is pyrites CuFeS 2 .The Cup obtained can be reduced to by treating with 2 S. 2Cu 2 S → 3 O 2 2Cu 2 O + 2SO 2 Switch

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  • EXTRACTION OF COPPER

    The finely crushed is concentrated by Froth OF IMPORTANT OF pyrite or chalcopyrite CuFeS 2. Chalocite 2 S or glance. Malachite green [CuCO 3. OH 2]. Azurite blue [2CuCO 3. OH 2]. Bornite 3Cu 2 S.Fe2S 3 or peacock . Melaconite CuO etc. OF FROM

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

     · For instance, hydrometallurgical processes are used to treat copper oxide ores that are dominated by soluble minerals, such as copper carbonate …

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  • Extraction of Copper and Zinc | Chemistry, Class 12 ...

     · It is mainly extracted from copper pyrites CuFeS2. The sulphide ore is usually of very low grade and contains iron sulphide, gangue and smaller quantities of arsenic, antimony, selenium tellurium, silver, gold and platinum. The various steps involved …

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  • Sulphide Gold Ore Treatment by Leaching and Flotation Process

    Problem with gold recovery from : How may a mill get the maximum recovery of gold from a , at the least capital cost and at the same time obtain the highest net return. This latter point is most important. In many cases a gold mill using an all-cyanide flowsheet with fine grinding of all the will report very low gold content in the tailings particularly on an ...

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  • PDF A Review of the Flotation of Copper Minerals

    These oxidised minerals are found in weathered regions of most bodies The overlaying oxidic is usually stockpiled after it is removed from the lode and left ...

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  • Bioleaching -

    Bioleaching is the of metals from their through the use of living organisms.This is much cleaner than the traditional heap leaching using cyanide. Bioleaching is one of several applications within biohydrometallurgy and several methods are used to recover , zinc, lead, arsenic, antimony, nickel, molybdenum, gold, silver, and cobalt

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  • Copper Extraction from Sulfide Ores - Latest Contents

    FROM is mostly from the pyrites, by means of the following two processes: i-Smelting process ii-Hydrometallurgical process SMELTING PROCESS Modern metallurgy is based on the smelting process. Following steps are involved: i. CONCENTRATION OF THE ORE The finely powdered ore is concentrated by …

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    Blasting sulfide ore in the Codelco Chuquicamata open-cut copper mine, Chile. The first step in recovering metals from their minerals is that of finding ore-bodies in which metal sulfides are present in a sufficient quantity, and at a sufficient concentration, for mining to be economic.

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  • METALLURGY OF COPPER-EXTRACTION OF COPPER-BLISTER …

    FROM ORE. Large amount of are obtained from pyrite CuFeS2 by smelting. Ores containing 4% or more are treated by smelting process. Very poor ores are treated by hydro-metallurgical process.

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  • Nickel processing - Extraction and refining | Britannica

    and refining. The of nickel from follows much the same route as , and indeed, in a number of cases, similar processes and equipment are used. The major differences in equipment are the use of higher-temperature refractories and the increased cooling required to accommodate the higher operating temperatures in nickel production.

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  • The Extraction of Copper - Chemistry LibreTexts

     · The method used to from its ores depends on the nature of the ore. such as chalcopyrite C u F e S 2 are converted to by a different method from silicate, carbonate or sulfate ores. Chalcopyrite also known as pyrites and similar are the commonest ores of copper.

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  • Copper processing - Ores | Britannica

    and refining. The of from is normally carried out in three major steps. The first step, mineral processing, is to liberate the minerals and remove waste constituents—such as alumina, limestone, pyrite, and silica—so that the minerals and other nonferrous minerals of value are concentrated into a product containing between 20 and 30 percent .

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

    In the of its , the metal is formed by reduction of 2 O with 2 S. The of is heated in air until a part is converted to oxide and then further heating in the absence of air to let the oxide react with unchanged .

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  • Extraction of copper directly from sulphide ore is less ...

    In the of from its , the metal is finally obtained by the reduction of cuprous oxide with asked Dec 23, 2018 in Chemistry by sonuk 44.4k points processes of …

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  • copper extraction and purification - chemguide

    copper from its ores. The method used to copper from its ores depends on the nature of the ore. such as chalcopyrite are converted to copper by a different method from silicate, carbonate or sulphate ores. Getting copper from chalcopyrite, CuFeS 2. Chalcopyrite also known as copper pyrites and similar are the commonest ores of copper.

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  • Extraction Of Copper | Mining, Concentration, Smelting ...

    Mining: The commonest used in the of is Chalcopyrite CuFeS 2 also known as Pyrites and other such sulphides. The percentage of in the actual is too low for direct of to be viable. The concentration of is required and it is done by the Froth Flotation method. Concentration of ...

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  • PROCESS FOR EXTRACTING COPPER FROM SULFIDE ORES - DORR ...

    A hydrometallurgical process for values from oxide by leaching said with an aqueous sulfuric acid solution, which comprises the steps of 2. The process according to claim 1, wherein said supply of sulfur dioxide bearing gases is provided by the roasting of a mineral producing a calcine and sulfur ...

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  • Method of gold extraction from sulphide gold-bearing ores

    After leaching it is implemented separation of liquid and solid phases and of metals from it. Additionally from solid phase it is implemented of noble metals and by means of flotation in at pH not more than 2. EFFECT: increasing of and noble metals ratio. 1 tbl, 1 ex

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