sulfide ores contact

  • THE GOMPOSITION OF Ni.SULFIDE ORES, WITH

    THE GOMPOSITION OF Ni.SULFIDE ORES, WITH PARTICULAR REFERENCE TO THEIR CONTENT OF PGE AND AU ] A.J. NALDRETT, E.L. HOFFMAN, A.H. GREEN, CHEN-LIN CHOU ENN S.R. NALDRETT chalcopyrite ore occurs in sharp contact with the basaltic footwall and is overlain by net-textured ore, overlain in turn by sulfides, weakly dis-

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  • Flotation Reagents for Non

    A FOCUS ON CATIONIC CHEMISTRIES FOR REVERSE FLOTATION OF SILICATES. Evonik produces an array of performance chemicals that serve the mining industry. At the core of that technical know-how is the production of high-quality reagents for reverse flotation of non-sulfide ores. Our Tomamine product line of ether amines is designed specifically for this type of mineral flotation.

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  • Copper Ores

    The copper-bearing polymetallic (lead-zinc-copper) ores are widely distributed throughout the world. The skarn copper ores, which are genetically related to moderately acidic granitoids, and the vein and other types of deposits are of secondary importance in the overall balance of reserves and mining of copper.

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  • sulfide mineral

    Sulfide mineral, any member of a group of compounds of sulfur with one or more metals. Most of the sulfides are simple structurally, exhibit high symmetry in their crystal forms, and have many of the properties of metals, including metallic luster and electrical conductivity.

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  • Precipitation of Sulfide Ores and Organic Matter: Sulfate

    Mass balance considerations show that the amount and degree of alteration of bitumen is more than adequate to account for the reduced sulfur species (lead, zinc, and iron sulfides) deposited at Pine Point. These reactions may provide an important means of generating the large volumes of sulfide necessary to precipitate ore bodies in carbonate

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  • A fresh approach to sulfide ores

    Jun 26, 2017A fresh approach to sulfide ores FL tackles chalcopyrite processing with new rapid oxidative leach process. For the majority of chalcopyrite concentrates, an initial SMRt reactor contact is required and a second contact approximately two hours into the leach is often beneficial. Additional transits through the SMRt reactor after the

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  • ISO/TC 183

    Copper and nickel sulfide ores and concentrates -- Determination of total chlorine content -- Alkaline fusion and potentiometric titration method 40.00: 73.060.99; ISO/TR 15855:2001. Copper, lead and zinc sulfide concentrates -- Step-by-step procedure for the testing of static scales Contact ISO We are committed to ensuring that our website

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  • Examples for "sulfide ore" and how to use it

    English examples for sulfide ore - Two of the above-mentioned mines were free milling and two produced sulfide ore. They are also used for roasting a wide variety of sulfide ores prior to metal extraction. It has been described as the single most important operation used for the recovery and upgrading of sulfide ores.

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  • sulfide

    Sulfide, also spelled sulphide, 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. Inorganic sulfides are ionic compounds containing the negatively charged sulfide ion, S 2−; these compounds may be regarded as salts of the very weak acid

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  • Paleomagnetic dating of non

    Non-sulfide ores, mainly the supergene- In this paper, we report on a first attempt formed types, are rapidly becoming an important made to use paleomagnetism for constraining the source of metallic zinc as well as lead (Large, age of the non-sulfide Zn-Pb ore in the Iglesiente-

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  • extraction of copper other sulfide ores

    A copper ore is a mixture of copper minerals and other materials in the rock called gangue, from which it is economically viable to extract the metal. A typical copper ore contains between % and % copper. A high grade ore produces a high yield of metal. A low grade order produces a low yield of metal. Copper can be extracted from sulfide

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  • Process to Recover Gold from Sulfide Ores

    May 27, 2016This subject is a little off the topic of this website but Im trying to get some feedback on a technology I have been working on the past few years that was focused on remediation of toxic waste. I believe it has an application to recover gold from sulphide ores by eliminating the current roastin

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  • Ferrous sulfide

    A method is given for the removal of heavy metals from metal finishing wastewater by sulfide precipitation in which ferrous sulfide is used as the sulfide ion source. Ferrous sulfide works best as a freshly prepared slurry; it has a large reactive surface. Korchin SR;

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  • Why is roasting carried out in sulfide ores and not on

    Jan 14, 2017Roasting is the process of converting an ore into its oxide by heating strongly in the presence of an excess of air (oxygen), so that oxygen reacts to forming the corresponding oxide. It is done for sulphide ores in order to remove sulphur as sulp

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  • Science Desk: How Sulfide

    May 08, 2015Have you ever wondered just how sulfide-ore copper mines pollute their surrounding environments? It's a good question, because in order to understand the environmental impacts to the Boundary Waters Canoe Area Wilderness and Voyageurs National Park, we must first understand all of the ways sulfide-ore copper mining can cause harm to the surrounding lakes, streams, wetlands and

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  • THE GOMPOSITION OF Ni.SULFIDE ORES, WITH

    THE GOMPOSITION OF Ni.SULFIDE ORES, WITH PARTICULAR REFERENCE TO THEIR CONTENT OF PGE AND AU ] A.J. NALDRETT, E.L. HOFFMAN, A.H. GREEN, CHEN-LIN CHOU ENN S.R. NALDRETT chalcopyrite ore occurs in sharp contact with the basaltic footwall and is overlain by net-textured ore, overlain in turn by sulfides, weakly dis-

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  • Copper(1+);sulfide

    Copper(1+);sulfide | Cu2S | CID 10130093 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities

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  • Magmatic Sulfide Ore Deposits

    Magmatic sulfide ore deposits are products of natural smelting: concentration of immiscible sulfide liquid ('matte'), enriched in chalcophile elements, derived from silicate magmas ('slags'). Sulfide ore deposits occupy a spectrum from accumulated pools of matte within small igneous intrusions or lava flows, mined primarily for Ni and Cu, to stratiform layers of weakly disseminated

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  • 1 Froth Flotation – Fundamental Principles

    1 Froth Flotation – Fundamental Principles separating sulfide minerals from silica gangue (and from other sulfide minerals); separating γsl is the surface energy of the solid/liquid interface, and θ is the "contact angle", the angle formed at the junction between vapor, solid, and liquid phases, as shown in

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  • Copper Ore Types: Sulfides vs. Oxides

    Copper Ore Types: Sulfides vs. Oxides. copper oxide ores and copper sulfide ores. Both ore types can be economically mined, though they are processed in different ways. you are giving

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  • Processing of Nickel Laterite Ores on the Rise

    As sulfide ore resources dwindle, however, processing of lateritic nickel ores is becoming of greater necessity, with many recognizing nickel laterite ores as the future of the nickel industry. The Move to Nickel Laterites. Sulfides have long supplied the bulk of the global appetite for nickel.

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  • Why is roasting carried out in sulfide ores and not on

    Jan 14, 2017Roasting is the process of converting an ore into its oxide by heating strongly in the presence of an excess of air (oxygen), so that oxygen reacts to forming the corresponding oxide. It is done for sulphide ores in order to remove sulphur as sulp

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  • 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

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  • Complex Sulphide Ores: Processing Options

    Complex sulphide ores represent considerable reserves and resources in base non ferrous metals, in precious metals, and in sulphur. Some of their essential characteristics, which allow a general presentation of the complexity of their processing options, from the ore to the pure metals or finished products, have already been presented by the author (1,2).

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  • Nickel sulfide ore: Mineral information, data and localities.

    Search Photos of Nickel sulfide ore Edit Add Synonym Add Sub-type (rock) Clear Cache Ores with economic nickel in sulphide minerals (most commonly pentlandite).

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  • Copper Extraction from Sulfide Ores

    This process is used for the extraction of copper from low grade sulfide ore. In this process, the crushed and ground ore in bulk (about 100,000 tons) is exposed to air and water in big tanks. The air in the presence of water gradually oxidizes copper and iron sulphides to their surphides.

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  • Accelerating Copper Leaching from Sulfide Ores in Acid

    This work investigates the effect of an agglomeration and curing pretreatment on leaching of a copper sulfide ore, mainly chalcopyrite, using mini-columns in acid-nitrate-chloride media. Ten pretreatment tests were conducted to evaluate different variables, namely the addition of nitrate as NaNO3 (11.7 and 23.3 kg/ton), chloride as NaCl (2.1 and 19.8 kg/ton), curing time (20 and 30 days) and

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  • This report was made possible by funding from the C.S

    sulfide ores are exposed to air and water and then oxidize, is one of the most damaging and widespread pollutants associated with the mining industry throughout the world.2 It degrades water quality and can harm plants and animals that live in or come into contact with that water, both because of the increased acidity itself and dissolved heavy

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  • Magmatic Sulfide Ore Deposits

    Magmatic sulfide ore deposits are products of natural smelting: concentration of immiscible sulfide liquid ('matte'), enriched in chalcophile elements, derived from silicate magmas ('slags'). Sulfide ore deposits occupy a spectrum from accumulated pools of matte within small igneous intrusions or lava flows, mined primarily for Ni and Cu, to stratiform layers of weakly disseminated

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  • The cuprex metal extraction process: Recovering copper

    The Cuprex™ metal extraction process produces cathode-grade copper using a hydrometallurgical process based on chloride leaching of sulfide ore concentrates.

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