sulfide ores

  • What is Sulfide Mining? | Mining Action Group

    Metallic sulfide mining (aka hard rock mining) is the practice of extracting metals such as nickel, gold and copper from a sulfide-rich ore body.

  • Smelting and Roasting Ores to recover gold, silver and ...

    When smelting assays are done on high sulfide ores, a couple of iron nails are added to the mix. The metal in the nails reacts with the metals in the sulfides reducing the metals to their metallic state.

  • SULFIDE MINING - Minnesota Center for Environmental ...

    Sulfide mining, unfortunately, poses several significant environmental risks. The most significant one is the threat to water quality. When sulfide ores are exposed to air and water, the result is sulfuric acid, which causes the leaching of potentially toxic heavy metals and the release of sulfates that contribute to the methylation of mercury.

  • Copper Mining and Extraction: Sulfide Ores

    The smelter for sulfide ores produces sulfur dioxide gas. This is scrubbed from the flue gases to make sulfuric acid for leaching copper from oxide ores. Scrubbing sulfur dioxide also protects the environment. For example: FeO(s) + SiO 2 (s)→ FeO.SiO 2 (slag) This is …

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

    Complex sulfide ores containing sulfides of copper, zinc, and lead are especially common, as are complex copper, nickel, cobalt, antimony, and mercury ores. Many sulfide ores contain Pt, Au, Ag, Cd, In, Se, and Te as admixtures. Most deposits of sulfide ores are endogenous, and among those, hydrothermal deposits predominate.

  • Process Development - Alaska DGGS

    the sulfide ore and the recovery of its valuable metals. Nerco has provided funding on an annual basis. Information contained in this publication is a result of this research. Within the research program, complex sulfide ores are treated by ferric chloride leaching to dissolve zinc, lead, copper and silver.

  • Sulfide-silicate textures in magmatic Ni-Cu-PGE sulfide ...

    114 There is a spectrum of sulfide abundances in many magmatic sulfide ore deposits. In many 115 cases, particularly in komatiite-hosted ores and also at Voisey’s Bay (Fig. 1) there is a

  • Copper Mining and Processing: Processing of Copper Ores ...

    Copper processing is a complicated process that begins with mining of the ore (less than 1% copper) and ends with sheets of 99.99% pure copper called cathodes, which will ultimately be made into products for everyday use.The most common types of ore, copper oxide and copper sulfide, undergo two different processes, hydrometallurgy and pyrometallurgy, respectively, due to the different ...

  • Mineralogy of Sulfides - Elements

    Sulfide ores in volcano-sedimentary sequences, such as those associated with ophiolite complexes (e.g. the Troodos Complex in Cyprus) are dominated by pyrite and chalcopyrite. Our understanding of the formation of such deposits has been revolutionized by the study of present-day volcanic and hydrothermal activity on the seafloor.

  • Sulfide - Wikipedia

    Sulfide 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.

  • Role of surface chemistry of fine sulphides in their ...

    Factors in sulphide fines flotation exhibit In contrast increased to the angularity above possibuity. when broken certaIn down ores tocan The problem of the flotation of sulphide fines results colloidal size range because of the dispersal of fibrous from a number of contributory factors that are not clay minerals.

  • 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.

  • Copper Production: How Is Copper Made? - The Balance

    Copper is typically extracted from oxide and sulfide ores that contain between 0.5 and 2.0 percent copper. The refining techniques employed by copper producers depend on the ore type, as well as other economic and environmental factors.

  • Copper Ore Types: Sulfides vs. Oxides | Investing News Network

    Copper Ore Types: Sulfides vs. Oxides. ... Copper sulfide ores are typically the most profitable types of copper ores to mine. That is because they have high copper content, and the copper in them ...

  • Sulfide Mining - Friends of the Boundary Waters Wilderness

    Sulfide mining interest near the BWCAW isn’t limited to a single mine proposal. Hundreds of prospecting permits have been filed for minerals near the BWCAW, and thousands of acres of state and federal mineral rights have been leased.

  • sulfide | Definition, Classes, Formulas, & Facts ...

    Sulfide: Sulfide, any of three classes of chemical compounds containing the element sulfur. The three classes of sulfides include inorganic sulfides, organic sulfides (sometimes called thioethers), and phosphine sulfides. ... Chalcopyrite, CuFeS 2, is the dominant copper mineral in these ores, ...

  • Sulfide OreS -

    Sulfide OreS Clariant Mining Clariant MininG 2645 Technology Forest Blvd. The Woodlands, Texas 77381 Tel: +1 281-465-9100 Fax: +1 281-465-9200 www.MininG. Clariant. CoM This information corresponds to the present state of our knowledge and is intended as a general descrip-tion of our products and their possible applications.

  • Copper Ore Types: Sulfides versus Oxides -

    Both ore types can be economically mined, however, the most common source of copper ore is the sulfide ore mineral chalcopyrite, which accounts for about 50 percent of copper production.

  • ACANTHITE/ARGENTITE (Silver Sulfide)

    Acanthite is the most important silver ore next to galena. ... But the proper mineral name when referring to Ag2S at room temperatures is acanthite. Argentite is a name applied to one polymorph ... Acanthite is generally easily identified although it may appear like galena and other silver sulfide minerals. The crystal habits discussed above ...

  • Sulfide - an overview | ScienceDirect Topics

    The sulfide minerals found in nickel sulfide ores are given in Table 13.1. Virtually, all the nickel in nickel sulfide ores occurs in the mineral pentlandite [(Ni,Fe) 9 S 8]. Only small amounts of nickel in the ore occur as millerite [NiS], violerite [Ni 2 FeS 4] and nickeliferrous pyrrhotite [(Fe,Ni) 8 S 9].


    method of beneficiating sulfide ores. Chemi- cals are used to produce a concentrate con- taining the targeted minerals. A list of some of these chemicals is found in Figure 3, page 13. Froth flotation begins by adding chem- cals to the milled ore, so that the surfaces of one or more minerals in the slurry will repel water and attract air bubbles.

  • sulfide mineral | Definition, Examples, Identification ...

    Sulfide mineral: Sulfide mineral, any member of a group of compounds of sulfur with one or more metals. ... Sulfide mineral, sulfide also spelled sulphide, ... Marine sulfide ores, containing iron, copper, cobalt, zinc, and traces of other metallic elements, are deposited in large amounts by the actions of deepwater hydrothermal vents, such as ...

  • Sulphide Ores - Corporate

    Sulphide Ores Optimize your recovery and reagent consumption for sulfide ores with customized technical solutions. At Clariant Mining Solutions, we are proactive solution-seekers committed to optimizing your mineral processing operations through creative problem-solving.

  • Sulfide-Ore Copper Mining and/or A Sustainable Boundary ...

    Sulfide-Ore Copper Mining or (not and) a Sustainable Boundary Waters Economy ii In a world where many jobs can be done from almost anywhere, economic research must begin with

  • The Mineral Gallery - Sulfides Class

    The Sulfide Class minerals comprise an economically important class of minerals. Most major ores of important metals such as copper, lead and silver are sulfides. Most major ores of important metals such as copper, lead and silver are sulfides.

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

    Recovery of Gold in Pyritic Sulfide Ores The now extinct Us Bureau of Mines conducted numerous studies of gold in pyrite, and sulfide ores over the years, until their untimely demise in the 1990's.