Nickelcopper sulfide deposits are the source for most of the worlds nickel, and magmatic platinum group metal deposits. These deposits have significant economic value. NickelCopperPGE deposits are a class of deposits that, as the name suggests, contain nickel, copper
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in solid solution in the sulfide minerals containing iron, nickel and copperparticularly in pentlandite Godel, Barnes, & Maier, 2007. As a result, the efficient isolation of PGMs into a concentrate requires maximum recovery of both the minerals containing PGMs and the sulfide minerals containing iron, nickel and copper.
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Unusual nickel and copper to noblemetal ratios from the Råna Layered Intrusion, northern NorwayIf a small amount of sulphide was removed from the magmainto a CuFeNi sulphide liquid containing 3638% sulphur in the igneous phase of the rock's
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Magmatic deposits containing exploitable quantities of nickel, copper, and platinum group elements PGE are associated with variable quantities of localized sulphide concentrations in mafi c and
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Sulphide solubility in magma Abstract. This essay aims to define the controls on sulphide solubility in magma, such as pressure, temperature and element activity. Chalcophile elements, elements of low abundance, form sulphide and arsenide minerals but are not
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12.3 Primary Copper Smelting 12.3.1 General1 Copper ore is produced in 13 states. In 1989, Arizona produced 60 percent of the total U. S. ore. Fourteen domestic mines accounted for more than 95 percent of the 1.45 megagrams Mg
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Native Copper peeled from the Proterozoic Nonsuch Shale beds, White Pine Mine, Ontonagon County, Michigan. University of Waterloo Earth Sciences Museum Collection. Black fragments of shale still adhere to the copper. White Pine Mine was the last of the copper
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Several factors affect the Ni, Cu and PGE grades of the sulfides of the magmatic sulfide deposits, the most important of which include: concentration of these elements of the parental silicate magma, degree of sulfide segregation, reaction between the sulfide droplets and new pulses of mafic magma, and fractionation of the sulfide liquids. 4.1.
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extraction of iron from its oxide ore sulfide. extraction of iron from its oxide ore sulfide. 50.8 EXTRACTION OF IRON Chemistry Assignment.2017 Beside the ores containing copper mainly as sulfide, with a small amount At the New Cornelia mine, however, the oxide and sulfide ores are sharply .. may be treated as at New Cornelia for extraction of
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The copperII ions are removed again from the organic solvent by reaction with fresh sulfuric acid, producing a much more concentrated copperII sulfate solution than before. Electrolysis of the new solution. CopperII ions are deposited as copper on the cathode for the electrode equation, see under the purification of copper below.
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As they convect through the magma they collect or scavenge nickel, copper and the platinum group elements from the magmaas all of these elements have a strong chemical affinity for sulphur. As the sulphide droplets accumulate metals they become heavier than the magma itself and begin to sink through the magma and accumulate in depressions in the base of the ultramafic see e above.
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These elements may be further concentrated within the magma as a result of the addition of sulphur from partial melting of the surrounding rocks. The heavy nickel and copper sulphide minerals are then concentrated further still by gravity segregation i.e., crystals settling toward the bottom of the magma
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EXTRACTION OF COPPER FROM SULPHIDE ORE Large amount of copper are obtained from copper pyrite CuFeS2 by smelting. Ores containing 4% or more copper are treated by smelting process. Very poor ores are treated by hydrometallurgical process. EXTRACTION OF COPPER BY SMELTING PROCESS Following steps are involved in the extraction of copper.
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over which they flowed would change the composition of the lava, leading to unmixing of a sulphide liquid the from the lava, analogous to oil and vinegar settling apart ina bottle of salad dressing. This liquid sulphide then crystallised to form mineral deposits rich in nickel, copper and sometimes platinumgroup metals, examples of
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Formation of Magmatic NickelSulfide Ore Deposits and Processes Affecting Their Copper and PlatinumGroup Element Contents Article in Economic Geology 100:179213 ·
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Basal deposits sulphur saturation of mafic magma causes dense cobalt and nickel sulphides to be concentrated in basal sections of magma chambers Stratabound deposits fractional crystallisation in large gabbroic magma chambers causes deposition of discrete sulphide layers containing cobalt, nickel, copper and platinumgroup minerals
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Magmatic sulfide deposits containing nickel Ni and copper Cu, with or without ± platinumgroup elements PGEs, account for approximately 60 percent of the worlds Ni production and are active exploration targets in the United States and elsewhere.
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Formation of Magmatic NickelSulfide Ore Deposits and Processes Affecting Their Copper and PlatinumGroup Element Contents Article in Economic Geology 100:179213 ·
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Acid leaching of a nickel sulfide concentrateof mechanical activation in metals extraction from sulfide minerals.recovery of copper and nickel from sulfide ore concentrates is achieved
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We have extraction of copper from its sulphide ore chemical equation,Extracting copper from its ores The method used to extract copper from its ores depends on the nature of the ore Sulfide ores such as chalcopyrite CuFeS2 are converted to copper by a different method from silicate carbonate or sulfate ores Chalcopyrite also known as copper pyrites and similar sulfide ores are the commonest
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Kambalda type komatiitic nickel ore deposits are a class of magmatic ironnickelcopperplatinumgroup element ore deposit in which the physical processes of komatiite volcanology serve to deposit, concentrate and enrich a FeNiCuPGE sulfide melt within the lava flow environment of an erupting komatiite volcano.
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Nickelcopper sulfide ore deposits are found at the base of mafic and ultramafic bodies. All their host rocks,In many cases rifts contain sedimentary rocks rich in S, thus providing an ideal source of S for sulfideThus the Sudbury sulfide liquid had more time to equilibrate with the silicate magma than a sulfide droplet in a mantle
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containing nickel for poor matte, with charging of oxidized nickel containing ores, was studied. The literature review and our research on collective dissolution of the pyrrhotinized products and poor mattes present viable and economical solutions. Nickel precipitation in the sulfide forms from solutions has been studied in this work.
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When sulfur saturation occurs, droplets of sulfide liquid form; because the droplets are more dense than basaltic magma, they tend to settle into the lower part of the magma chamber 4. As the sulfide droplets segregate, they scavenge metals such as nickel, copper, platinum Pt, and palladium Pd from the magma.
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The source of the sulphur in these ore bodies is either from the magma itself or from the preexisting rock where it was present as sulphate. The most common nickel mineral in these ores is pentlandite, Ni,Fe9S 8 . The atomic ratio of nickel to iron in pentlandite ranges between 0.34 and 2.45.
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Dec 18, 2019· If the sulphur content of the magma is high enoughor is extracted from the surrounding rocks through meltingand if all the other geochemical essentials line up as the rocks cool furtherthe sulphide liquid can crystallise and form ore deposits containing metals such as nickel, copper
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Liquid immiscibility: sulfide ores containing copper, nickel or platinum may form from this process. As a magma changes, parts of it may separate from the main body of magma. Two liquids that will not mix are called immiscible; oil and water are an example.
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The acid pressure leach solution is treated using hydrogen sulphide to produce a high grade sulphide containing at least 50% nickel. This mixed sulphide is then pressure leached to give a high purity concentrated nickelcobalt solution, suitable for solvent extraction to separate the valuable metals.
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Nickel Deposits Explained.2005, outlines current thinking which relates to the formation of nickelcopperPGE sulphide deposits similar to what Balmoral has discovered at Grasset. Within the ultramafic intrusion or flow, sulphide droplets form, often through contamination of the magma with sulphur from adjacent rock units, like the
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Copper extraction refers to the methods used to obtain copper from its ores. The conversion of copper consists of a series of physical and electrochemical processes. Methods have evolved and vary with country depending on the ore source, local environmental regulations, and other factors.
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Understand how the metals were formed. The nickel sulphide deposits in Sudbury, Thompson and Voiseys Bay were formed when a sulphide magma unable to mix transformed into a silicate magma. This is similar to the process of mixing oil and vinegar, except in molten rock, which is formed at temperatures over 1000 degrees.
Inquire Nowextraction of iron from its oxide ore sulfide. extraction of iron from its oxide ore sulfide. 50.8 EXTRACTION OF IRON Chemistry Assignment.2017 Beside the ores containing copper mainly as sulfide, with a small amount At the New Cornelia mine, however, the oxide and sulfide ores are sharply .. may be treated as at New Cornelia for extraction of
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Could sulfur have been purged from the magma source region or from its magma chambers? This idea is suggested by the early ultramafic dikes which apparently represent the beginning of Midcontinent rift and which contain apparently immiscible sulfide bodies which contain nickel, copper and rare earth elements Ding et al., 2011; Ding et al., 2012.
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Formation of Magmatic NickelSulfide Ore Deposits and Processes Affecting Their Copper and PlatinumGroup Element Contents Article in Economic Geology 100:179213 ·
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Dec 18, 2019· If the sulphur content of the magma is high enoughor is extracted from the surrounding rocks through meltingand if all the other geochemical essentials line up as the rocks cool furtherthe sulphide liquid can crystallise and form ore deposits containing metals such as nickel, copper
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Scientists from the U.S. Geological Survey are evaluating the potential for undiscovered sulfide deposits containing varying amounts of nickel, copper, platinumgroup metals, and cobalt in the Lake Superior region as part of an ongoing effort to assess the mineral potential of the United States.
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Education Resources Copper Mining and Extraction: Sulfide Ores Its hard to imagine a world without copper. We rely on copper for power, lighting, heating, communications, water supply and transport.
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Jan 23, 2015· The sulphide magma absorbs and concentrates the nickel, copper and precious metals through a natural process. The dense sulphide magma that contains the metals is then forced by gravity to accumulate close to the silicate magma base, and
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