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process of concentration of sulphide ores

  • 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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  • What process is used for the concentration of sulphide ore

    The sulphide ores preferably wetted by the oil and the gangue with the water. Hence this method is suitable for the concentration of the sulphide ore How zinc is derived from sphalerite

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  • Froth Floatation Process

    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 bywater. Then air is passed through this mixture.

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  • Notes OCCURRENCE AND EXTRACTION OF METALS

    The sulphide ore particles are wetted preferentially by oil and gangue particles by water. In this process finely powdered ore is mixed with either pine oil or eucalyptus oil. It is then mixed with water. Air is blown through the mixture with a great force. Froth is produced in this process which carries the weted ore

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  • Froth Floatation Process

    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 bywater. Then air is passed through this mixture.

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  • USAProcess for recovering precious metals from

    The present invention is a process to recover precious metals from sulfide ores. It involves chlorinating a mixture of an ore concentrate and salt to form a liquid melt. The salt preferably contains potassium chloride. This chlorination is carried out at a temperature between 300° and 600° C. while stirring. The process converts precious metals in the elemental and sulfide forms into

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  • Explain the froth floatation process askIITians

    This process is called concentration of ore. This process is mainly used for sulphide ores. The principle of froth flotation process is that sulphide ores are preferentially wetted by the pine oil whereas the gangue particles are wetted by the water. In this process a suspension of a powdered ore

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  • What process is used for the concentration of sulphide ore

    The sulphide ores preferably wetted by the oil and the gangue with the water. Hence this method is suitable for the concentration of the sulphide ore How zinc is derived from sphalerite

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  • Why is froth floatation method used for concentration of

    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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  • Copper Mining and Extraction Sulfide Ores

    Ores near the surface can be quarried after removal of the surface layers. The ore is treated with dilute sulfuric acid. This trickles slowly through the ore dissolving copper to form copper sulfate. The copper is recovered by electrolytic refining. Advantages of this process are See for further information on the leaching process.

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  • Ore Depositan overview ScienceDirect Topics

    A mass transfer process in the form of magmatism is the first step leading to the potential formation of magmatic ore deposits. Another important perspective is that ore minerals such as sulfide and oxide phases do not generally form in amounts large enough for mining when mantle-derived magmas solidify and freeze in volcanic environments.

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  • Sulphide ores of metals are usually concentrated by froth

    The ore which can be attracted by the magnetic field can be concentrated by the process of magnetic separation. Among the ores mentioned in table 6.1 the ores of iron such as haematite (Fe 2 O 3) magnetite (Fe 3 O 4) siderite (FeCO 3) and iron pyrites (FeS 2) can be separated by the process of magnetic separation.

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  • A process employed for the concentration of sulphide ore

    A process employed for the concentration of sulphide ore is (a) Froth floatation (b) Roasting (c) electrolysis (d) bessemerisation

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  • Explain the froth floatation process askIITians

    This process is called concentration of ore. This process is mainly used for sulphide ores. The principle of froth flotation process is that sulphide ores are preferentially wetted by the pine oil whereas the gangue particles are wetted by the water. In this process a suspension of a powdered ore

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  • Explain the froth floatation process askIITians

    This process is called concentration of ore. This process is mainly used for sulphide ores. The principle of froth flotation process is that sulphide ores are preferentially wetted by the pine oil whereas the gangue particles are wetted by the water. In this process a suspension of a powdered ore

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  • The processes of formation of mineral deposits are grouped

    This process of formation of mineral deposits has been described as pyrometasomatism by Lindgren and as contact-metasomatism by Bateman. In this case the enclosing country rock is altered by the heat and other chemical constituents of the invading intrusive magma forming new minerals under conditions of high temperature and pressure.

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  • Roasting metallurgy Britannica

    Roasting or heating in air without fusion transforms sulfide ores into oxides the sulfur escaping as sulfur dioxide a gas. Smelting (q.v.) is the process used in blast furnaces to reduce iron ores. Tin copper and lead ores are also smelted. Read More In metallurgy Roasting.

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  • Notes OCCURRENCE AND EXTRACTION OF METALS

    The sulphide ore particles are wetted preferentially by oil and gangue particles by water. In this process finely powdered ore is mixed with either pine oil or eucalyptus oil. It is then mixed with water. Air is blown through the mixture with a great force. Froth is produced in this process which carries the weted ore

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  • CBSE Class 12 Chemistry Notes Principal and Processes of

    Apr 22 2019 · This method is used for the concentration of sulphide ores. This method is based on the preferential wetting of ore particles by oil and that of gangue by water .. As a result. the ore particles become light and rise to the top in the form of froth while the gangue particles become heavy and settle down. Thus. adsorption is involved in this method.

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  • Recycle of Wastewater from Lead-Zinc Sulfide Ore Flo

    Flow sheet of the Zhangbeizhuan lead-zinc sulphide ore flotation process (time used were minute concentration showed were mg/l). Recycle of Wastewater from Lead-Zinc Sulfide Ore Flotation Process

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  • What process is used for the concentration of sulphide ore

    The sulphide ores preferably wetted by the oil and the gangue with the water. Hence this method is suitable for the concentration of the sulphide ore How zinc is derived from sphalerite

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  • LIST OF ORES AND THEIR NAMES SULPHIDE ORE

    Oct 03 2017 · (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. The crushed ore along with water is taken in a floatation cell.

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  • What process is used for the concentration of sulphide ore

    The sulphide ores preferably wetted by the oil and the gangue with the water. Hence this method is suitable for the concentration of the sulphide ore How zinc is derived from sphalerite

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  • Froth Flotation Method Is Used For Concentration Of

    The Ore Concentrated By Froth Floatation Process. Concentration of ores hydraulic washing froth flotation froth flotation process.Another method of concentration of ores is the froth flotation method.This is the process for concentration of primarily sulphide ores has the advantage over gravity separation because it can collect even the

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  • Process for recovering precious metals from sulfide ores

    The present invention is a process to recover precious metals from sulfide ores. It involves chlorinating a mixture of an ore concentrate and salt to form a liquid melt. The salt preferably contains potassium chloride. This chlorination is carried out at a temperature between 300 gree. and 600 gree. C. while stirring. The process converts precious metals in the elemental and sulfide forms

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  • 50.5 EXTRACTION OF METALS- METALLURGY Chemistry

    2. Froth Floatation Process. This process is generally used for the concentration of sulphide ores. The finely powdered ore and water are taken in a tank. Additional reagents such as pine oils fatty acids etc. are added to the mixture. These reagents increase the nonwettability of the mineral particles and are known as collectors. The

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  • Froth Flotation Method Is Used For Concentration Of

    The Ore Concentrated By Froth Floatation Process. Concentration of ores hydraulic washing froth flotation froth flotation process.Another method of concentration of ores is the froth flotation method.This is the process for concentration of primarily sulphide ores has the advantage over gravity separation because it can collect even the

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  • CBSE Class 12 Chemistry Notes Principal and Processes of

    Apr 22 2019 · This method is used for the concentration of sulphide ores. This method is based on the preferential wetting of ore particles by oil and that of gangue by water .. As a result. the ore particles become light and rise to the top in the form of froth while the gangue particles become heavy and settle down. Thus. adsorption is involved in this method.

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  • Gold processingMining and concentrating Britannica

    Gold processingGold processingMining and concentrating The nature of the ore deposit determines the mining and mineral processing techniques applied. Oxide ore deposits are frequently of such low grade (e.g. 3 to 10 parts per million) that extensive mineral processing cannot economically be justified. In this case they are merely shattered by explosives and then piled into heaps for

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  • A process employed for the concentration of sulphide ore

    A process employed for the concentration of sulphide ore is (a) Froth floatation (b) Roasting (c) electrolysis (d) bessemerisation

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  • Gold processingMining and concentrating Britannica

    Gold processingGold processingMining and concentrating The nature of the ore deposit determines the mining and mineral processing techniques applied. Oxide ore deposits are frequently of such low grade (e.g. 3 to 10 parts per million) that extensive mineral processing cannot economically be justified. In this case they are merely shattered by explosives and then piled into heaps for

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  • Concentration of OresStudy Material for IIT JEE

    The process of removal of gangue from the ore is technically known as concentration or ore dressing and the purified ore is known as concentrate. galena (PbS) is usually associated with zinc sulphide (ZnS) pyrites (FeS 2) and quartz (SiO 2).

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  • Concentration of Ore Definition Types and Properties of Ore

    Concentration Definition The process of removal of the gangue from Ore is known as Concentration or Dressing or Benefaction. There are numerous methods of concentration and the methods are chosen based on the properties of the ore. This method is mainly used to remove gangue from sulphide ores. The ore is powdered and a suspension is

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  • Roasting metallurgy Britannica

    Roasting or heating in air without fusion transforms sulfide ores into oxides the sulfur escaping as sulfur dioxide a gas. Smelting (q.v.) is the process used in blast furnaces to reduce iron ores. Tin copper and lead ores are also smelted. Read More In metallurgy Roasting.

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  • MetallurgySlideShare

    Oct 28 2017 · • Purpose of roasting i. To convert the sulphide into oxide and sulphate ii. To remove impurities like S As Sb. iii. To remove moisture iv. To Oxidise easily oxidisable substances 13. •It is mainly used for sulphide ores • it converts the sulphides into oxides •4FeS2 11O2 → 2Fe2O3 8SO2 2ZnS 3O2 ----> 2ZnO SO2 14.

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  • Froth Flotation Method Is Used For Concentration Of

    The Ore Concentrated By Froth Floatation Process. Concentration of ores hydraulic washing froth flotation froth flotation process.Another method of concentration of ores is the froth flotation method.This is the process for concentration of primarily sulphide ores has the advantage over gravity separation because it can collect even the

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