Sulfide - Wikipedia
Sulfide (systematically named sulfanediide, and sulfide(2−)) (British English sulphide) is an inorganic anion of sulfur with the chemical formula S 2− or a compound containing one or more S 2− ions. It contributes no color to sulfide salts.
metal extraction from sulfide ores - veronaschoolhouse.com
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Sulfide Ore Treatment Gold – Silver – Copper – Cobalt ...
Several sulfide ore leaching methods were tested to determine the best base metal extraction technique as a first step in designing a process to recover the base and precious metal values. Leaching reagents used included dilute sulfuric acid, sulfuric acid plus manganese dioxide, ferric chloride plus hydrochloric acid, and oxygen.
METALLIC SULFIDE-ORE MINING in the DULUTH COMPLEX
METALLIC SULFIDE-ORE MINING in the DULUTH COMPLEX P % he Boundary Waters suffers the misfortune of existing in close proximity to the Duluth Complex, which is a geological feature that underlies the woods and waters of Northeastern Minnesota. One 35-mile-long section of the Duluth Complex consists of low-grade sulÞde ore
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.
Copper Ore Types: Sulfides vs. Oxides | Investing News Network
Different methods are used to process copper sulfide ores depending on the concentration of copper within the ore — higher-concentrated ores can be separated via smelting, while lower ...
Rebellious Ores: Sulfides, Selenides and Tellurides
Well, sulfides, selenides and tellurides are simply minerals which contain sulfur, selenium, and tellurium combined with some metal. Unusually this is the metal we are interested in, but sometimes other valuable metals can be mixed in as trace elements.
Annotated Bibliography on the Geology of Selenium
Selenium occurs in metallic ore deposits, most commonly in hydro thermal base metal sulfide deposits of all temperature and depth ranges. It is present in disseminated copper deposits of the porphyry type, in vein and replacement copper deposits, in massive sulfide ores, in copper-lead sulfide vein deposits, in epithermal silver-gold
Copper(I) sulfide - an overview | ScienceDirect Topics
The worldwide exploitable copper ores are approximately 90% of sulfidic nature, 9% oxidic, and <1% metallic copper ores. Principal sulfidic ores are chalcocite (Cu 2 S) and chalcopyrite (CuFeS 2, yellow copper ore), whereas cuprite is the major oxidic ore (Cu 2 O, red copper ore).
production of zn metal from zns ore - Mineral Processing EPC
Aug 22, 2017· Lead Sulfide, Lead Sulfide Suppliers and Manufacturers at Alibaba . High-grade producing level industrial grade sodium sulfide 60%min. Add to Compare .. The Mining Machinery Ceramic Vacuum Filter Filtering Zinc Sulfide .. Non-ferrous metal sulfide ore crusher machine/stone crusher machine/jaw crusher.
Copper Ore Types: Sulfides versus Oxides - Nasdaq.com
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.
metallic sulfide ores – Grinding Mill China
The Gulin product line, consisting of more than 30 machines, sets the standard for our industry. We plan to help you meet your needs with our equipment, with our distribution and product support system, and the continual introduction and updating of products.
Mineralogy of Sulfides - Elements
The uptake of metal ions by sulfide surfaces is an important process in the transport and mobility of metals in the subsurface, in ore formation, and on the mobility of contaminants and other pollutants.
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.
Lead Sulfide Smelting- - Metalcess- works for whole metal ...
Lead Sulfide Ore Lead & zinc metals are closely attached to each other and usually mined together from primary ore, for example, Galena (PbS) & sphalerite (ZnS) are associated in native ore. As the main formation of lead sulfide, galena is widely spread all over the world.
Sulfides - University of Colorado Boulder
Pyrite FeS2 Crystal System Cubic Point Group 2/m-3 Space Group Pa3 Optical opaque Color BrassYellow Luster Metallic Hardness 6-6.5 Density 5.02g/cm3
sulfide mineral | Definition, Examples, Identification ...
Sulfide mineral, sulfide also spelled sulphide, 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 lustre and electrical conductivity.
Recovery of Gold in Pyritic Sulfide Ores - Mine Engineer.Com
Sulfide ores, and pyrites in particular, have caused and continue to cause difficulty in recovering the gold values from these ores. In most instances, visible gold can not be seen under microscopic examination of pyrite gold ores.
Metal-Sulfide Mineral Ores, Fenton Chemistry and Disease ...
The purpose of this study is to investigate the toxicity of common metal-sulfide minerals (copper-sulfides, copper-iron-sulfides, arsenic-iron-sulfide, lead-sulfide, and zinc-sulfides) that are mined or present in ore deposits as gangue minerals.
ACANTHITE/ARGENTITE (Silver Sulfide)
Acanthite is the most important silver ore next to galena. Actually there is an argument to be made that acanthite could be the most important silver ore. Galena is a lead ore that often contains enough silver (usually about 1%) that when it is processed for its lead content the by-product silver
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 Ore Processing « TCB Metals and Refining
Instead of relying on autoclaves or roasting to prepare a sulfide ore for traditional leaching, our vibratory grinder on our circuit allows our leach to make contact with the precious metal encapsulated in the sulfide so leaching can occur.
EXTRACTING METALS FROM SULFIDE ORES - Electrochemical …
Metal sulfide flotation concentrates can be treated in a number of ways. These include using pyrometallurgy, or smelting at high temperature, in which process the sulfur in the metal sulfide is oxidized with air or oxygen to sulfur dioxide, and molten metal is produced.
Sulfide Mining - Friends of the Boundary Waters Wilderness
Water is the lifeblood of the BWCAW. The lakes and rivers of the Boundary Waters connect the whole region, and pollutions that begins in one part of the watershed will inevitably spread to other areas. Peer-reviewed research shows that groundwater polluted by sulfide mining would quickly move into surface water. The geology of the BWCAW […]
US3370704A - Metallic sulfide flotation process - Google ...
in a process for the separation of metallic sulfide ores by froth flotation, the steps of conditioning a water suspension of finely-divided metallic sulfide ores selected from the group consisting of copper and iron sulfide ores with a collector comprising an s-substituted isothioronium salt having the structure $(rsc(nh2)2$)+x-where r is an ...
Pyrite: Pyrite mineral information and data. - Mindat.org
Pyrite Group. The isometric (cubic) polymorph of orthorhombic marcasite. Pyrite is a very common mineral, found in a wide variety of geological formations from sedimentary deposits to hydrothermal veins and as a constituent of metamorphic rocks.
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. Learn more about sulfides in this article.
Sulfide minerals - Wikipedia
The sulfide minerals are a class of minerals containing sulfide (S 2−) as the major anion. Some sulfide minerals are economically important as metal ores . The sulfide class also includes the selenides, the tellurides, the arsenides, the antimonides, the bismuthinides, the sulfarsenides and the sulfosalts .
Copper Sulfide Flotation - Mineral Processing & Metallurgy
Flowsheet for treatment of Copper Sulfide ores rich in minerals such as chalcopyrite with gold and silver as well as arsenopyrite The above flowsheet is designed for the treatment by flotation of copper as chalcopyrite with gold and silver values.
Cobalt Metal - Properties, Production, and Applications
Cobalt metal can then be refined from this using electrolysis, before being crushed and degassed to produce a pure, commercial grade metal. Cobalt-containing nickel sulfide ores are treated using the Sherritt process, named after Sherritt Gordon Mines Ltd. (now Sherritt International).
Flotation experiment research on a polymetallic sulfide ore of
Ore structure:The metal sulfide ores show idiomorphic, hypidiomorphic, or structure-dependent grains. The pyrite particles were the coarsest, followed by that of galena, sphalerite, and chalcopyrite.
US3425550A - Flotation separation of metallic sulfide ores ...
Prior art keywords flotation process sulfide ores dithiocarbamate metallic sulfide Prior art date 1966-07-22 Legal status (The legal status is an assumption and is not a legal conclusion.