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Sulphide Gold Ore Treatment by Leaching and Flotation

Sulphide Gold Ore Treatment by Leaching and Flotation Process Previous Next 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 Get price

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Minerals

Mine tailings are among the largest mining wastes on Earth and can reach surface areas of up to 52 km 2 and be several hundred meters high As this waste type results mainly from the flotation process of sulphide mineral ores they are very likely to produce acid mine drainage (AMD) the main environmental problem of contemporary mining activity Get price

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how to mine reactive sulphide ore

Sulfide Mining Mining Methods Techniques Copper - how to mine reactive sulphide ore Sulfide Mining Mining is the method of tacking materials from the earth to get valuable metal ores like copper zinc and lead which are known as target minerals in mining terms Copper Ore Types Sulfides vs Oxides | Investing News Copper sulfide ores are Get price

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Leaching of a low

chalcocite Together with dump leaching of mine waste heap leaching contributes about 20% of annual world copper production (Watling 2006) The leaching of several low-grade nickel sulfide ores has also been investigated in pilot-scale heaps (Watling 2008) including test heaps at Radio Hill Western Australia and at Talvivaara Finland Get price

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Polymetallic massive sulphide deposits

Sediment plumes created by mining operations may impact suspension feeders such as sponges and corals In addition the pulverisation of massive sulphides on the ocean floor will produce highly reactive sulphide mineral surfaces generate acid by-products and potentially release harmful major and trace metals into the environment Get price

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extraction of metals

the extraction of metals - an introduction This page looks at the various factors which influence the choice of method for extracting metals from their ores including reduction by carbon reduction by a reactive metal (like sodium or magnesium) and by electrolysis Get price

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How is copper obtained from its sulphide ore? What is the

24/12/2018Oxidation and reduction in two stages — simplified reactions below in quotes but in normal practice many copper ores also contain iron as CuFeS that need to be reduced An excellent discussion of the entire process from mining though ore procesGet price

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CASINO MINE PROJECT

The mine's water supply will be provided from the Yukon River via an approximate 17 km above-ground pipeline The Project is designed to process approximately 120 000 tonnes per day (t/d) of sulphide ore through a concentrator facility to produce copper and molybdenum concentrates and to leach oxide ore toGet price

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Gold Sulphide Ore Oxidation by Alkaline Pressure

Alkaline pressure oxidation is currently being used at the Barrick Mercur Gold Mine Utah The operating conditions at Mercur are 220 c and up to 460 psig pressure and pH between 7 and 9 for treating ore with 1 to 2% sulfur and 2g/mt Au (White 1990) Get price

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How To Mine Reactive Sulphide Ore

how to mine reactive sulphide ore 26163 - nacib What is Sulfide Mining Mining Action Group Save the Wild UP Metallic sulfide mining (aka hard rock mining) is the practice of extracting metals such as nickel gold Online Service Smelting and Roasting Ores to recover gold silver and Get price

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how to mine reactive sulphide ore

Sulfide mining extracts copper nickel and other metals from sulfide ores The environmental risks are different from and greater than Minnesota's traditional iron ore mining When rain falls on the waste from iron mining it makes rust when rain falls on sulfide ore waste sulfuric acid is produced Get price

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Sulfide Ore Native

Native silver is sometimes found in the oxidized zones above the ores of other metals It persists there because silver does not readily react with oxygen or water It does react with hydrogen sulfide to produce a tarnished surface that is composed of the silver sulfide mineral known as acanthite Get price

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Oxidative Hydrometallurgy of Sulphide Minerals

Sulphide minerals as pyrite FeS2 chalcopyrite and CuFeS2 are one of the most important sources of value metals such as gold silver coppe r zinc etc Due to the strong sulfur binding to these minerals metals are usually extracted by metallurgical process of chemical oxidation Get price

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Sulfide Ore Native

Native silver is sometimes found in the oxidized zones above the ores of other metals It persists there because silver does not readily react with oxygen or water It does react with hydrogen sulfide to produce a tarnished surface that is composed of the silver sulfide mineral known as acanthite Get price

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Gold Sulphide Ore Oxidation by Alkaline Pressure

Alkaline pressure oxidation is currently being used at the Barrick Mercur Gold Mine Utah The operating conditions at Mercur are 220 c and up to 460 psig pressure and pH between 7 and 9 for treating ore with 1 to 2% sulfur and 2g/mt Au (White 1990) Get price

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How is copper obtained from its sulphide ore? What is the

24/12/2018Oxidation and reduction in two stages — simplified reactions below in quotes but in normal practice many copper ores also contain iron as CuFeS that need to be reduced An excellent discussion of the entire process from mining though ore procesGet price

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Sulfide Ores

Unlike mineral sulfide ores iron ore 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 reduction of ferric iron to ferrous iron may be useful in upgrading iron ore Get price

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how to mine zinc ore

Mining and concentrating Zinc ores are recovered by many mining techniques ranging from openpit mining (mainly in the case of oxidized ore bodies which are loed closer to Earth's surface) to the normal underground methods (used for the more deeply loed sulfide ores) The Get price

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Sulfide mining record

Sulfide mining record There is ample reason to be skeptical about mining companies' and promoting agencies' promises that sulfide mining can be done without polluting the water One can merely search the internet for Acid Mine Drainage and find numerous examples all over the world of environmentally devastating and costly damage Get price

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Copper mining From ore to copper

What's in an ore? There are many types of copper ore found throughout the world Picture 4 shows the distribution of these deposits About 80% of all copper extracted comes from sulphide ores A typical ore contains only 0 5% to 2 0% copper It is a measure of the value of copper that it is worth extracting it from such small concentrations Get price

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Flotation of a copper sulphide ore from Okiep using thiol

Flotation of a copper sulphide ore from Okiep using thiol collectors and their mixtures The Journal of The South African Institute of Mining and Metallurgy VOLUME 105 NON-REFEREED PAPER MARCH 2005 201 Figure 1—The final cumulative copper recovery vs collector dosage obtained with C2-X di-C2-DTP and di-C2-DTC in the flotation of the Okiep copper oreGet price

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List Sulphide Minerals

The furnace residue called blue billy is of the same composition as hematite and it commonly used as an iron ore Pyrite flotation concentrate is being used in a plant near Hamilton Ontario to produce elemental sulphur sulphuric acid and high grade iron ore Get price

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Sulphide Gold Ore Treatment by Leaching and Flotation

Sulphide Gold Ore Treatment by Leaching and Flotation Process Previous Next 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 Get price

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How To Mine Reactive Sulphide Ore

How To Mine Reactive Sulphide Ore kasprzykart how to mine reactive sulphide ore 26163 nacib What is Sulfide Mining Mining Action Group Save the Wild UP Metallic sulfide mining (aka hard rock mining) is the practice of extracting metals such as nickel gold Online Service Smelting and Roasting Ores to recover gold silver and Get price

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Evolution of Acid Mine Drainage Formation in

(2) Once mining-related operations of the tailings impoundment has ceased sulphide oxidation starts resulting in the formation of an acidic oxidation zone and a ferrous iron-rich plume below the oxidation front that re-oxidises once it surfaces producing the first visible sign of AMD i e the precipitation of ferrihydrite and concomitant acidification Get price

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Gold extraction

Gold extraction refers to the processes required to extract gold from its ores This may require a combination of comminution mineral processing hydrometallurgical and pyrometallurgical processes to be performed on the ore Gold mining from alluvium ores was once achieved by techniques associated with placer mining such as simple gold panning and sluicing resulting in direct recovery of Get price

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Flotation of a copper sulphide ore from Okiep using thiol

Flotation of a copper sulphide ore from Okiep using thiol collectors and their mixtures The Journal of The South African Institute of Mining and Metallurgy VOLUME 105 NON-REFEREED PAPER MARCH 2005 201 Figure 1—The final cumulative copper recovery vs collector dosage obtained with C2-X di-C2-DTP and di-C2-DTC in the flotation of the Okiep copper oreGet price

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extraction of copper from ore

Tailings produced from the milling of sulfide ores — primarily copper lead and zinc ores — may have concentrations of pyrite that are greater than those common in waste rock Also because tailings are composed of small mineral particles the size of fine sand and smaller they can react with air and water more readily than waste rocks Get price

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extraction of copper from ore

Tailings produced from the milling of sulfide ores — primarily copper lead and zinc ores — may have concentrations of pyrite that are greater than those common in waste rock Also because tailings are composed of small mineral particles the size of fine sand and smaller they can react with air and water more readily than waste rocks Get price

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Sulfide Ores

Unlike mineral sulfide ores iron ore 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 reduction of ferric iron to ferrous iron may be useful in upgrading iron ore Get price

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Evolution of Acid Mine Drainage Formation in

(2) Once mining-related operations of the tailings impoundment has ceased sulphide oxidation starts resulting in the formation of an acidic oxidation zone and a ferrous iron-rich plume below the oxidation front that re-oxidises once it surfaces producing the first visible sign of AMD i e the precipitation of ferrihydrite and concomitant acidification Get price

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