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sulphide ores are mainly concentrated by what method

  • LIST OF ORES AND THEIR NAMES SULPHIDE ORE

    Oct 03, 2017· water while heavier ore particles settle down. Ex. Oxygenated Ores. (b) Froth Floatation method This method is mainly employed for the concentration of sulphide ores. The method is based on the different wetting characteristics of the gangue and the sulphide ore with water and oil. The gangue preferrentially wetted by water and the ore by oil.

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  • Cobalt extraction - Wikipedia

    Cobalt extraction refers to the techniques used to extract cobalt from its ores and other compound ores. Several methods exist for the separation of cobalt from copper and nickel. They depend on the concentration of cobalt and the exact composition of the used ore . The ores are treated by a sulfatizing roast in a fluidized bed furnace to ...

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  • Copper Mine, Techniques,Ores, Mines, Occurence, Processing ...

    Copper is extracted in large amounts from the Earth's crust by mining of sulphide ores and also oxide ores. The procedure of copper processing involves mining and transporting. Oxide ores are generally processed through hydrometallurgy- heap leaching, solvent extraction and electrowinning. The sulfide ores are usually processed using the method of pyrometallurgy- froth floatation, thickening ...

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  • Froth flotation - Wikipedia

    Froth flotation is a process for selectively separating hydrophobic materials from hydrophilic.This is used in mineral processing, paper recycling and waste-water treatment industries. Historically this was first used in the mining industry, where it was one of the great enabling technologies of the 20th century.

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  • Which of the following ores can be concentrated by toppr.com

    Sulphide ore is concentrated by the method: 1. Froth flotation process 2. Magnetic separation 3. Gravity method 4. C alcination method. 1 Verified Answer. View Answer. Froth flotation process used for the concentration of sulfide ore _____. 1 Verified Answer.

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  • Enrichment of Ore or Concentration of Ore - funscience.in

    This method is used for concentration of sulphide ores of copper, lead and zinc. In this method, powdered ore is put in a tank full of water. And then, some Pine oil is added to it. In the tank the particles of sulphide ore are wetted by pine oil whereas the gangue particles are wetted by water. Then air is passed through this mixture.

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  • The Extraction of Copper - Chemistry LibreTexts

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

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  • Copper extraction - Wikipedia

    Sulfide ores. Secondary sulfides – those formed by supergene secondary enrichment – are resistant to sulfuric leaching.These ores are a mixture of copper carbonate, sulfate, phosphate, and oxide minerals and secondary sulfide minerals, dominantly chalcocite but other minerals such as digenite can be important in some deposits.. Supergene ores rich in sulfides may be concentrated using ...

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  • The method of flotation of sulphide gold ores

    The method of flotation of sulphide gold ore comprising the sequential conditioning the pulp with xanthate, additional collector, Frother and the allocation of the valuable component in the foam product, characterized in that as an additional collector injected concentrate metasulfite, the latter is a mixture of 3,7-dimethyl-5 tiannan-2,8-dione ...

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  • Sulphide ore is concentrated by the method:1. toppr.com

    Dec 20, 2019· Froth Floatation methodThis method is mainly employed for the concentration of sulphide ores. The method is based on the different wetting characteristics of the gangue and the sulphide ore with water and oil. The gangue preferrentially wetted by water and the ore by oil. The crushed ore along with water is taken in a floatation cell. Various substances are added depending on …

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  • Need clarity, kindly explain! The idea of froth floatation ...

    This method is mainly for the concentration of sulphide ores.The method is based on the different wetting characteristics of the gangue and the sulphide ore with water and oil - wherein . The gangue preferentially wetted by water and the ore by oil.

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  • Bacterial consortium for copper extraction from sulphide ...

    The group found an optimal bacterial consortium for sulphide ore, which is composed mainly with the bacterial species At. ferrooxidans with At. thiooxidans. This consortium achieved a 70% removal of copper in 35 days compared to the consortium composed of L. …

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  • What is Concentration of Ore? Definition and Methods ...

    The concentration of Ore can define as the chemical process of eliminating impurities like sand, rocks, silt, grit etc. from the ore for the extraction of metal. In this content definition and methods for the concentration of ore are explained along with the definition of ore and its types.

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  • why only sulphide ore is concentrated by froth flotation

    ores are mainly concentrated by what method. why only sulphide ore is concentrated by froth flotation method Which one of the following ores is best how copper ore is concentrated …

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  • (PDF) A Review of the Flotation of Copper Minerals

    sulphide oxide ores and oxide copper/cobalt ores varies from one ore type to the next, m ainly by type of collector and sulphidiser used. The choice of reagent scheme depends largely on the type ...

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  • Sulphide Gold Ore Treatment by Leaching and Flotation Process

    Problem with gold recovery from sulphide ore: How may a mill get the maximum recovery of gold from a sulphide ore, 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 ore will report very low gold content in the tailings particularly on an ...

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  • Why is froth floatation method used for concentration of ...

    Jun 02, 2019· Only sulphide ores are concentrated by froth flotation process because pine oil selectively wets the sulphide ore and hence brings it to the froth. ... This method is usedfor that metals whose ore gets preferably wetted by the oil and the gangue by the water.

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  • What is the role of adsorption in froth floatation process ...

    (i) Adsorption of pine oil on sulphide ore particles. (ii) Formation of emulsion takes place. (iv) Froth is formed along with ore particles. (v) Mechanism of the functioning of shape selective catalysis. As sulphide are extracted using froth floatation method therefore, only sulphide ore particles will show these type of adsorbing tendency.

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  • Copper Mining and Extraction Sulfide Ores

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

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  • IOP Conference Series: Materials Science and Engineering ...

    ore beneficiation methods. In the present work, leaching of complex sulfide ores in sulfuric acid was investigated by the Electro hydrometallurgy process. The lab-scale experiments were conducted to investigate the influences of pulp-density, electrolyte concentration, particle size, current density and time on recovery of Cu and Zn.

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  • Extraction of Zinc from Zinc Blende | Lets Learn Nepal

    The big lumps of ore is first crushed by a jaw crusher and powered in ball mills. b. Concentration: The crushed and pulverized ore is concentrated by froth flotation process. This process is used for the concentration of sulphide ore. The powered ore is suspended in water and after adding pine one, it is stirred by passing the compressed air.

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  • METALLURGY OF COPPER-EXTRACTION OF COPPER-BLISTER COPPER

    The finely crushed ore is concentrated by Froth-Floatation process. The finely crushed ore is suspended in water containing a little amount of pine oil. A blast of air is passed through the suspension. The particles get wetted by the oil and float as a froth which is skimmed. The gangue sinks to the bottom.

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  • Concentration of Ore Definition, Types and Properties of Ore

    The magnetic ore remains on the belt and the gangue falls off the belt. Froth Flotation Method: This method is mainly used to remove gangue from sulfide ores. The ore is powdered and a suspension is created in water. To this are added, Collectors and Froth Stabilizers. Collectors (pine oils, fatty acids etc) increase the non-wettability of the ...

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  • Recovery of Gold in Pyritic Sulfide Ores - Mine Engineer.Com

    Recovery of gold in sulfide ores has fallen into several categories. First is froth flotation, and second is cyanidation of the ores. Using cyanide to recover gold from sulfide ores generally results in 30 to 35% recovery, and the best I have heard of is around 50% recovery. The fine coating of a iron compound definitely appears to be a key ...

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  • Why is froth flotation method selected for the ...

    Froth Flotation is the single most important operation used for the recovery and upgrading of sulphide ore. Only sulphide ores are concentrated by froth flotation process because pine oil selectively wets the sulphide ore and hence brings it to the froth.

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  • processing copper sulphide ores 」

    The processing of complex Sulphide ores depends on the nature of the gangue material and percentage composition of various nonferrous metals present in the ores or in the bulk concentrates. As Zinc and copper often occur together, the separation of one metal from the other has presented problems to the nonferrous metallurgists [1].

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  • US7785395B2 - Method for the recovery of gold from ...

    The invention relates to a method for recovering gold from a sulphidic concentrate, particularly one containing arsenopyrite and/or pyrite, hydro-metallurgically. The concentrate is first subjected to leaching with a concentrated solution of alkali chloride and copper (II) chloride, by means of which the copper minerals and some of the gold in the concentrate are made to dissolve.

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  • The enrichment method polymetallic sulfide gold ores and ...

    There is a method of enrichment of sulphide gold-bearing polymetallic ores and products, including collective flotation using as the collector amyl xanthate, pine oil Frother and sodium sulphide [1] However, according to the method of the extraction of gold in the collective sulfide gold-bearing concentrate does not exceed 50-55% due to its ...

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  • the sulphide ore is concentrated using method - Chemistry ...

    Sulphide ores are concentrated by froth flotation process because pine oil selectively wets the sulphide ore and hence brings it to the froth. Answered by Ramandeep | …

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  • Notes on Extraction Of Metals: Metallurgy | Grade 11 ...

    Extraction of crude metal from the concentrated ore; Refining of the crude metal. A. Concentration or Benefaction of the Ore. This is a very important in metallurgy. The ore is obtained from the earth and usually contain dust, stone, quartz, feldspar and other foreign materials.These impurities are known as gangue or matrix.

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