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Sulfide Mining Overview - sosbluewaters.org

in electric cars). 7 Sulfide mining is remarkable in its mineral to waste ratio. The USGS reported The USGS reported that the average yield of copper mining was between 0.47 and 0.60 percent 8 and that production

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Reactive transport modelling of ore mineral zoning and the ...

supply of copper and cobalt causes the formation of more metal-rich sulfides, i.e. a higher copper or cobalt to sulfide ratio. The cobalt minerals that could be simulated were cattierite (CoS 2) and linnaeite (Co 3 S 4) which are minor minerals in the Copperbelt. The lack of thermodynamic data for carrollite (CuCo 2 S 4) inhibited the

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Oxidation of Copper Sulfides and Secondary Sulfide ...

Secondary copper sulfide enrichment is widely accepted today as resulting from oxidation of copper sulfide minerals, downward migration of soluble copper sulfates, and precipitation as copper sulfide by reaction with primary sulfide minerals. …

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EP3129515A1 - Depression of copper and iron sulfides in ...

A method of depressing copper sulfides and iron sulfides in a molybdenite floatation recovery process uses alkaline or alkaline earth potysulftdes at high concentrate pH. The method of enriching molybdenite content from a slurry having molybdenite and at least one of iron sulfides and copper sulfides can include the steps of adding an effective amount of a depressing …

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Surface properties of copper-sulfide minerals with sodium ...

Sep 01, 2020· Additionally, NaHS is used as an activator for copper-oxide minerals, such as malachite (Cu 2 (CO 3)(OH) 2), to sulfurize their surfaces (Zhou and Chander, 1993). Few examples exist of activator applications to copper-sulfide minerals and an analysis of the reaction between NaHS and copper minerals has seldom been performed.

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Sulfides, minerals: physical properties, application examples

Typical examples of such minerals are galena PbS (lead luster), chalcocite Cu 2 S (copper luster), molybdenite MoS 2, antimonite Sb 2 S 3 (antimony shine). Deceptions. This is the name of minerals from the group of sulfides, characterized by a non-metallic luster.

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Sulfide Minerals - an overview | ScienceDirect Topics

Copper exists in a variety of sulfide minerals, of which the most important (quantitatively) is the mixed copper–iron sulfide chalcopyrite (generally notated as CuFeS 2, though a more accurate mineral formulation is probably CuFeS 1.5, as both copper and …

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GY 111 Lecture Note Series Economic Geology

wealth in geology is courtesy of base metal sulfides. These include the GY 111L minerals sphalerite, chalcopyrite, galena, and other minerals like molybdenite, cinnabar and covellite (CuS). The list is a long one that you need not concern yourself about here. For this lecture, we'll stick with copper minerals. Copper-bearing sulfides like

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A new way of extracting copper | MIT News | Massachusetts ...

Jun 28, 2017· Most current copper extraction processes burn sulfide minerals in air, which produces sulfur dioxide, a harmful air pollutant that has to be captured and reprocessed, but the new method produces elemental sulfur, which can be …

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S K- and L-edge XANES and electronic structure of some ...

Frueh AJ (1954) The use of zone theory in problems of sulfide mineralogy. Geochim Cosmochim Acta 6:79–89. Google Scholar Goble RJ (1985) The relationship between crystal structure, bonding and cell dimensions in the copper sulfides. Can Mineral 23:61–76. Google Scholar

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Clean, electrically-driven process to separate ...

Jun 29, 2017· Most current copper extraction processes burn sulfide minerals in air, which produces sulfur dioxide, a harmful air pollutant that has to be captured and reprocessed, but the new method produces ...

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Mineralogy of Sulfides - Elements

The literature on sulfide minerals is extensive, with a number . of overview textbooks and monographs. Comprehensive reviews can be found in Ribbe (1974), Vaughan and Craig (1978), and, most recently, in Vaughan (2006). The present article provides a brief overview of the compositions and crystal struc-tures of the major sulfide minerals,

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16 Energy and Mineral Resources – An Introduction to Geology

The copper is carried downward in solution until it arrives at the groundwater table and a reducing environment where the copper precipitates, converting primary copper minerals into secondary higher-copper content minerals. Chalcopyrite (35% Cu) is converted to bornite (63% Cu) and ultimately chalcocite (80% Cu).

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Sulfide Mining and Human Health - Save the Boundary …

An example of the metal sulfide reaction is outlined in Figure 1. It demonstrates how sulfuric acid is generated in the presence of unearthed sulfide mineral rock. Copper-nickel ore frequently contains iron sulfide minerals such as pyrite (FeS2), one of the world's most common sulfide Iron hydroxide precipitating in a stream can be seen as

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ROASTING OF SULFIDE MINERALS

ROASTING OF SULFIDE MINERALS In addition to common metals like copper, lead, zinc, and nickel a number of other metals such as antimony, bismuth, cadmium, cobalt, mercury, and molybdenum occur as sulfide minerals. Sulfides are not reduced with the most widely used redu-cing agents, carbon and hydrogen, because the free energy change for the ...

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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. Strong generalities exist in this class. The majority of sulfides are metallic, opaque, generally sectile, soft to average in hardness and they have high densities, black or dark-colored streaks, and an igneous origin.

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Hydrometallurgical Processing of Low-Grade Sulfide Ore …

minerals Article Hydrometallurgical Processing of Low-Grade Sulfide Ore and Mine Waste in the Arctic Regions: Perspectives and Challenges Vladimir A. Masloboev 1, Sergey G. Seleznev 2, Anton V. Svetlov 1 and Dmitriy V. Makarov 1,* 1 Institute of North Industrial Ecology Problems, Kola Science Centre of the Russian Academy of Sciences, 184209 Apatity, Russia; …

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Acid leaching of oxide–sulfide copper ore prior the ...

453 Acid leaching of oxide–sulfide copper ore prior the flotation – A way for an increased metal recovery Miroslav D. Sokić1, Vladan D. Milošević1, Velizar D. Stanković2, Vladislav Lj.Matković1, Branislav R. Marković1 1Institute for Technology of Nuclear and Other Mineral Raw Materials, Belgrade, Serbia 2University of Belgrade, Technical Faculty, Bor, Serbia

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Sulfide Minerals - ThoughtCo

Jul 01, 2017· The sulfide minerals represent higher temperatures and a slightly deeper setting than the sulfate minerals, which reflect the oxygen-rich environment near the Earth's surface. Sulfides occur as primary accessory minerals in many different igneous rocks and in deep hydrothermal deposits that are closely related to igneous intrusions.

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Metallic minerals - ChemistryRack

Aug 02, 2021· It is a sulfide-type ferrous mineral that constitutes the most widely distributed copper ore. Native gold. It consists of a natural form of elemental gold found in the form of veins in the subsoil. Goethite. Another example of a ferrous mineral, in this case made up of a yellow mineral formed by a combination of ferric oxide and hydroxide. Bauxite

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Copper Ore Types: Sulfides versus Oxides | Nasdaq

Apr 23, 2011· Sulfide copper ores are the most profitable ores because they have high copper content, and the copper can be more easily separated from the unwanted minerals. It is important to note that sulfide ...

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Some Experiences of Resistivity and Induced Polarization ...

Sulfide minerals are a group of compounds with the presence of sulfur. This group's most abundant and economically members are pyrites, pyrrhotite, chalcocite, galena, sphalerite, and the group of copper sulfides minerals. Resistivity and Induced Polarization (IP) methods, which play an essential role in mineral exploration, showed great success in sulfide exploration.

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MAGMATIC SULFIDE DEPOSITS (MODELS 1, 2b, 5a, 5b, 6a, 6b ...

host rocks, the abundance and types of sulfide minerals, and (to a much lesser extent) sulfide mineral composition. General characteristics for the deposit subtypes described by Page (1986a-g) are listed in table 1. Examples Magmatic sulfide minerals concentrated near …

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3.5: Non-Silicate Minerals - Geosciences LibreTexts

Sulfides are well known for being important ore minerals. For example, galena is the main source of lead, sphalerite is the main source of zinc, and chalcopyrite is the main copper ore mineral mined in porphyry deposits like the Bingham mine (see chapter 16). The largest sources of nickel, antimony, molybdenum, arsenic, and mercury are also ...

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Cite examples of how copper deposits occur. Choose | Chegg.com

Cite examples of how copper deposits occur. Choose one or more: A. as an agglomeration metal B. in sulfide ore minerals C. in carbonate ore minerals D. as a native metal; Question: Cite examples of how copper deposits occur. Choose one or more: A. as an agglomeration metal B. in sulfide ore minerals C. in carbonate ore minerals D. as a native metal

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Solved: Cite Examples Of How Copper Deposits Occur. * Choo ...

Cite examples of how copper deposits occur. * Choose one or more: A. in carbonate ore minerals B. in sulfide ore minerals C. as an agglomeration metal D. as a native metal Mass movement Choose one: A. is more likely to happen under wet conditions than under dry conditions, B. happens only when the slope of a hill gets steeper than the angle of repose. .

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EMPLECTITE (Copper Bismuth Sulfide)

THE MINERAL EMPLECTITE. Chemistry: CuBiS2, Copper Bismuth Sulfide. Class: Sulfides. Subclass: Sulfosalts. Uses: As mineral specimens and as a very minor ore of copper and bismuth. Specimens. Emplectite is a another interesting sulfosalt mineral; a unique and diverse group of minerals to collect.

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Copper-sulfide Meaning | Best 1 Definitions of Copper-sulfide

What does copper-sulfide mean? (mineralogy, chemistry) A family of chemical compounds and minerals with the chemical formula CuxSu. (noun)

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(PDF) Controlled adsorption at the surface of copper ...

Apr 18, 2011· copper (I) sulfide as the model mineral is our interest in copper sulfides. Contrary to most world copper ore deposits, where the ma in copper mineral is chalcopyrite, in

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Opinion: Sulfides and Uranium in Michigan

Copper, for example, can combine with sulfur to form sulfides like chalcocite (Cu2S). Copper can combine with oxygen to form minerals like paramelaco-nite (Cu1+2Cu2 +2O 3). Or it can combine with silica to form minerals like chrysocolla (Cu2+, A1)2 H 2Si2O 5 (OH)4•nH2O. It can combine with halogens to form minerals like atacamite (Cu2+ 2C1(OH ...

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