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sulfide ore mining

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.

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  • Mining Industry | Copper Sulfide Ore and Flotation Process

    Mining Industry | Copper Sulfide Ore and Flotation Process

    Jul 09, 2019 · 1 Types of copper sulfide ore (1) Single copper mineral Its ore 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 ore Called copper-bearing pyrite. In addition to copper minerals, iron sulfide can be recovered, and the main mineral of sulfur is pyrite.

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  • Copper Mining and Extraction: Sulfide Ores

    Copper Mining and Extraction: Sulfide Ores

    Copper Mining and Extraction: Sulfide Ores. Copper has a remarkable combination of properties. It is a good electrical and thermal conductor. It is ductile and it can prevent bacterial growth (see Copper: Properties and Applications ). As with all world resources, the supply of copper from the ground is limited.

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  • The Threat of Sulfide Mining  Friends of the Boundary

    The Threat of Sulfide Mining Friends of the Boundary

    Sulfide mining, the process of extracting copper, nickel and other metals from sulfide ores, has been deemed the most toxic industry in the country by the EPA. When the sulfide ore comes in contact with oxygen or water, it creates sulfuric acid.

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  • Sulfide Mining Overview

    Sulfide Mining Overview

    Sulfide mining (also known as metallic mining) refers to mining operations which remove metals, such as copper, nickel, platinum and others, from sulfur bearing ores. The

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  • Copper Ore Types: Sulfides vs. Oxides | INN

    Copper Ore Types: Sulfides vs. Oxides | INN

    Copper Ore Types: Sulfides vs. Oxides. Both ore types can be economically mined, though they are processed in different ways. Copper sulfide ores are typically the most profitable copper ores to mine. That is because they have high copper content, and the copper in them can more easily be separated from unwanted minerals. However, copper oxide ores are more abundant.

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  • The Uncertain Future of the Boundary Waters | Outside Online

    The Uncertain Future of the Boundary Waters | Outside Online

    May 20, 2019 · “The primary difference is that the iron ore mined in Minnesota and the rest of the world is basically a sulfide mineral that has already been oxidized,” says David Chambers, a geophysicist ...

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  • Top 10 Reasons To Stop Twin Metals Sulfide Mining

    Top 10 Reasons To Stop Twin Metals Sulfide Mining

    Backcountry Hunters & Anglers is the sportsmen’s voice for our wild public lands, waters and wildlife. And the Minnesota chapter of Backcountry Hunters & Anglers (BHA) has been fighting to protect northern Minnesota’s waterways, watersheds and wildlife from proposed sulfide-ore copper mines for going on a decade now.

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  • Copper Mining and Processing: Processing of Copper Ores

    Copper Mining and Processing: Processing of Copper Ores

    B. Processing of Sulfide Ore Sulfide ores are generally processed using pyrometallurgy , the extraction and purification of metals by processes involving the application of heat. This process uses a series of physical steps and high temperatures to extract and purify copper from copper sulfide ores, in four basic steps: 1) froth flotation, 2) thickening, 3) smelting, and 4) electrolysis.

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  • Wellregulated sulfide mining can be done effectively

    Wellregulated sulfide mining can be done effectively

    Well-regulated sulfide mining can be done effectively. PolyMets project expects annual metal production of 39,000 tons of copper, 9,000 tons of nickel, 400 tons of cobalt, 22,000 ounces of platinum, 87,000 ounces of palladium and 13,800 ounces of gold from its lease. A 2009 714-page draft environmental impact statement ( DEIS)...

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  • The Great Sulfide Mining Divide

    The Great Sulfide Mining Divide

    Above all else, we have learned that sulfide-ore mining has never — never — been undertaken without serious environmental consequences. Sulfide-ore mining is dangerous everywhere and most dangerous in wet environments. And the Boundary Waters is nothing if not wet. The consequences of such mining …

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  • Sulphide Gold Ore Treatment by Leaching and Flotation Process

    Sulphide Gold Ore Treatment by Leaching and Flotation Process

    A Flowsheet to recovery gold from sulfide ores. Coarse primary grind on bulk of ore means a saving by using smaller grinding and classifying equipment, etc., Lower operating grinding costs for balls, liners and power. Very fine grind on small amount of concentrates is possible if required. Small tanks, etc.,...

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  • Sulfide Mining  Minnesota Trout Unlimited

    Sulfide Mining Minnesota Trout Unlimited

    Sulfide-Ore Copper Mining and the Risks. • Spills and seepage from surface storage of waste rock, underground mine pits, tailings pipelines or other facilities would release AMD to the interconnected streams, lakes, wetlands and groundwater flowing to the Boundary Waters. • High acidity can alter gill membranes, prevent fish from breathing,...

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  • Mining threatens Minnesotas pristine Boundary Waters

    Mining threatens Minnesotas pristine Boundary Waters

    Jan 20, 2018 · In 2015, McCollum introduced a bill to prohibit sulfur-ore mining, which is known to be the most toxic mining industry in the United States. The sulfide-ore mining process used to extract copper ...

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  • Mining Industry | Copper Sulfide Ore and Flotation Process

    Mining Industry | Copper Sulfide Ore and Flotation Process

    Jul 09, 2019 · 1 Types of copper sulfide ore (1) Single copper mineral Its ore 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 ore Called copper-bearing pyrite. In addition to copper minerals, iron sulfide can be recovered, and the main mineral of sulfur is pyrite.

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  • SulfideOre Copper Mining in Minnesotas Boundary Waters

    SulfideOre Copper Mining in Minnesotas Boundary Waters

    Sulfide-Ore Copper mines, which are what Twin Metals intends to propose, are notoriously destructive to environments. As the mining activities progress and material is extracted, the likelihood of Acid Mine Drainage (AMD) increases. AMD is produced when mine tailings (mine waste) are exposed to water and oxygen, becoming very environmentally toxic.

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  • Sulfide Ore | Article about Sulfide Ore by The Free Dictionary

    Sulfide Ore | Article about Sulfide Ore by The Free Dictionary

    Sulfide Ore. any of several natural mineral formations consisting of metal sulfides. Metal selenides, tellurides, arsenides, and antimonides are also classified among the sulfide ores. Sulfide ores are an important source for the production of Ni, Co, Cu, Zn, Pb, Mo, Bi, Sb, and Hg. They contain not only sulfides but also other minerals,...

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  • The Great Sulfide Mining Divide

    The Great Sulfide Mining Divide

    The Great Sulfide Mining Divide. Mining operations destroy all other surface uses and resources of the land, while depleting and contaminating both surface and ground water. The waste from PolyMet’s copper-nickel sulfide mine would need to be treated for at least 500 years, a perpetual problem.

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  • Top 10 Reasons To Stop Twin Metals Sulfide Mining

    Top 10 Reasons To Stop Twin Metals Sulfide Mining

    Former U.S. Vice President, Walter Mondale, said: “Sulfide-ore mining has never—never—been undertaken without serious environmental consequences. Sulfide-ore mining is dangerous everywhere and most dangerous in wet environments. And the Boundary Waters is nothing if not wet. The consequences of such mining are perpetual.

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  • Copper Mining and Processing: Processing of Copper Ores

    Copper Mining and Processing: Processing of Copper Ores

    B. Processing of Sulfide Ore Sulfide ores are generally processed using pyrometallurgy , the extraction and purification of metals by processes involving the application of heat. This process uses a series of physical steps and high temperatures to extract and purify copper from copper sulfide ores, in four basic steps: 1) froth flotation, 2) thickening, 3) smelting, and 4) electrolysis.

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  • Sulphide Gold Ore Treatment by Leaching and Flotation Process

    Sulphide Gold Ore Treatment by Leaching and Flotation Process

    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.

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  • Sulfide Ore Processing  TCB Metals and Refining

    Sulfide Ore Processing TCB Metals and Refining

    Processing Sulfide Ores. Historically, miners have shipped their sulfide concentrates to overseas smelters that have little to no regulations or emissions controls. However, with the implementation of the Mercury Export Ban of 2008 and the high costs of installing equipment to prepare sulfide ores for …

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  • Wellregulated sulfide mining can be done effectively

    Wellregulated sulfide mining can be done effectively

    Well-regulated sulfide mining can be done effectively ... in the best of all possible worlds sulfide mining could be done safely. ... Flambeau was a massive sulphide ore body and if the processing ...

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  • Recovery of Gold in Pyritic Sulfide Ores

    Recovery of Gold in Pyritic Sulfide Ores

    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.

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  • Veterans for the Boundary Waters

    Veterans for the Boundary Waters

    sulfide-ore copper mining proposed on the edge of the Wilderness. Veterans for the Boundary Waters works to protect this Wilderness so future generations of veterans can enjoy the public lands they fought to …

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  • Clean water or mining pollution for the nations favorite

    Clean water or mining pollution for the nations favorite

    Twin Metals is a mining firm owned by Chilean conglomerate Antofagasta. The aggressive push by the Trump administration to force approval of a sulfide-ore copper and nickel mine in northern ...

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  • Mining threatens Minnesotas pristine Boundary Waters

    Mining threatens Minnesotas pristine Boundary Waters

    Jan 20, 2018 · The sulfide-ore mining process used to extract copper and nickel pollutes waters with acid, arsenic, mercury and lead.

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  • SulfideOre Copper Mining in Minnesotas Boundary Waters

    SulfideOre Copper Mining in Minnesotas Boundary Waters

    Sulfide-Ore Copper mines, which are what Twin Metals intends to propose, are notoriously destructive to environments. As the mining activities progress and material is extracted, the likelihood of Acid Mine Drainage (AMD) increases. AMD is produced when mine tailings (mine waste) are exposed to water and oxygen, becoming very environmentally toxic.

    More Details
  • Sulfide Mining in Northeastern Minnesota  Northeastern

    Sulfide Mining in Northeastern Minnesota Northeastern

    Dec 06, 2013 · Sulfide Mining in Northeastern Minnesota. Far and away, Metallic Sulfide Mining represents the greatest current threat to the BWCAW and its environs. The extraction of heavy metals – gold, copper, palladium, nickel and others – from sulfide bearing ore has the potential to contaminate waters flowing into the Wilderness.

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  • Clean water or mining pollution for the nations favorite

    Clean water or mining pollution for the nations favorite

    The aggressive push by the Trump administration to force approval of a sulfide-ore copper and nickel mine in northern Minnesota’s Superior National Forest will almost certainly pollute the ...

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