Metallic Sulfide Ores

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Sulfide minerals - Wikipedia

Sulfide minerals The sulfide minerals are a class of minerals containing sulfide (S2−) 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, …

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 Sulfides are a geologic byproduct of mining in this area, and by exposing sulfides to the air and water in our atmosphere, sulfuric acid can be created — threatening to poison the nearby water

Sulfide Ores - an overview | ScienceDirect Topics

112 Extraction of Nickel and Cobalt from Sulphide 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 …

Sulfide - Wikipedia

Chemical reactions Upon treatment with a standard acid, sulfide converts to hydrogen sulfide (H 2 S) and a metal salt Oxidation of sulfide gives sulfur or sulfate Metal sulfides react with nonmetals including iodine, bromine, and chlorine forming sulfur and metal salts

EXTRACTING METALS FROM SULFIDE ORES - Electrochemical …

Sulfide Mining | Sierra Club

Metallic sulfide mining is a type of mining never before permitted in the land of 10,000 lakes The mining of copper/nickel sulfide ores is a toxic type of mining that is risky to our environment, our workers and communities, and local economies Mining sulfide rock releases acid and toxic metals and contaminants that pollute rivers and

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 …

EXTRACTING METALS FROM SULFIDE ORES - Electrochemical …

EXTRACTING METALS FROM SULFIDE ORES Many important metals are present in nature combined with sulfur as metal sulfides; these include cadmium, cobalt, copper, lead, molybdenum, nickel, silver, and zinc In addition, gold and platinum group metals are associated with sulfidic base metal ores

sulfide mineral | Definition, Examples, Identification

Sulfide mineral In virtually all of the sulfides, bonding is covalent, but some have metallic properties The covalent property of sulfur allows sulfur-sulfur bonds and the incorporation of S 2 pairs in some sulfides such as pyrite Several sulfides, including molybdenite (MoS 2) and covellite (CuS), have layer structures

Solved: 7-35 Metallic Silver Can Be Obtained From Sulfide

Metallic silver can be obtained from sulfide ores by first roasting the sulfides (Ag,S) to produce silver sulfates (Ag2SO4) which are leached from the ore using boiling water 11 Next the silver sulfate (Ag2SO4) is reacted with copper (Cu ) to produce copper sulfate ( …

Sulfide Mining and Human Health - savetheboundarywatersorg

Metal sulfide + air + water → Mobilized metal + salts + acid (including sulfuric acid) 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),

Copper Mining and Extraction: Sulfide Ores

Metals are often found as compounds in ores An ore is a rock or mineral that has enough metal in it to make it worth extracting Mining copper About 200 years ago the UK was an important world source of copper and tin and there were mines in Cornwall and Devon

Sulfide Ore Processing « TCB Metals and Refining

Processing Sulfide Ores 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 With the aggressive nature of our leach allowing us to process most ores in an hour,

List Sulphide Minerals - Mineral Processing & Metallurgy

Bismuthinite is an ore of the metal bismuth, but is found mostly in complex mixtures of ores of silver, cobalt, gold, etc, and the bismuth is extracted as a by-product, which sells at about $200 a pound It is used in making easily fusible alloys (safety plugs), and in a number of medical and chemical substances Molybdenite MoS2

How can metal mining impact the environment? | American

Tailings produced from the milling of sulfide ores — primarily copper, lead, and zinc ores — may have concentrations of pyrite that are greater than those common in waste rock Also, because tailings are composed of small mineral particles the size of fine sand and smaller, they can react with air and water more readily than waste rocks

sulfide | Definition, Classes, Formulas, & Facts

Sulfide, also spelled sulphide, any of three classes of chemical compounds containing the element sulfurThe 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

Flotation experiment research on a polymetallic sulfide …

The major metal minerals are galena, sphalerite, chalcopyrite, and pyrite, whereas the non-metallic minerals are quartz, plagioclase, calcite, dolomite, and chlorite In addition, the most usable elements found in the polymetallic sulfide ore in Shanxi province are copper, lead, zinc, gold, and silver

Sulfide Ore - an overview | ScienceDirect Topics

Bioleaching of metals from primary sulfide ores, polymetallic ores, and refractory gold ores and concentrates has been commercialized Biohydrometallurgical processing of solid wastes is an attractive technology, through currently confined to bench-scale research

Rebellious Ores: Sulfides, Selenides and Tellurides

Rebellious Ores: Sulfides, Selenides and Tellurides Most have a reflective metallic sheen, like lead sulfide, also known as Galena There are also sulfur minerals which contain more than one metal combined with sulfur such as parargyrite (ruby silver), bournonite (peacock copper ore…

METALLIC SULFIDE (COPPER-NICKEL) MINING UPDATE SAVE …

composition of volcanic rock containing billions of tons of sulfide ores with highly disseminated deposits of copper, nickel, gold, PGE and rare earths Iron formations are well defined and have been mined for years Metallic deposits form in boundaries of iron and sulfide volcanic intrusions

Sulfide Ore | Article about Sulfide Ore by The Free Dictionary

Sulfide Ore Metal selenides, tellurides, arsenides, and antimonides are also classified among the sulfide ores Sulfide ores are an important source for the production of Ni, Co, Cu, Zn, Pb, Mo, Bi, Sb, and Hg They contain not only sulfides but also other minerals, including minerals that do not contain metals—for example, quartz and calcite,

Sulfide Mining, Mining Methods, Techniques, Copper, Zinc

Sulfide Mining Mining is the method of tacking materials from the earth to get valuable metal ores like copper, zinc, and lead, which are known as target minerals in mining terms Metal ores like copper, zinc and lead are minute quantities contrasted to the whole composition of the earth

Rebellious Ores: Sulfides, Selenides and Tellurides

Pyrite, galena, sphalerite, and chalcopyrite are all common sulfide minerals that are found in many precious metal veins and other hard rock deposits When metals combine with sulfur, the resulting mineral is called a sulfide These minerals are the most important sources of most base metals like copper, lead and zinc

metallic sulfide ore - vhf-venwnl

metallic sulfide ores - spirosurveycoza metallic sulfide ores - lunarossa-ristoranteeu Sulfide Mining Mining is the method of tacking materials from the earth to get valuable metal ores like copper, zinc Smelting and Roasting Ores to recover gold, silver and ,

WO2014110518A1 - Flotation circuit for oxide and sulfide

A method of extracting targeted metallic minerals from ores that contain sulfide metallic minerals along with oxide minerals, carbonate minerals, silicate minerals, halide minerals or combinations thereof In the method, an ore slurry containing the metallic mineral in oxide, carbonate, silicate or halide form is provided The slurry is activated by adding sodium thiosulfate and sodium

Sulfide Oxidation - 911metallurgist

Sulfide Oxidation The first leaching step is the release of trace metals from the mineral phase due to sulfide oxidation Sulfate was the ultimate reaction product in both the laboratory and the field, a result of the pH and oxidizing conditions which prevailed, and the relatively long reaction time

Copper Ore Types: Sulfides vs Oxides | Investing News Network

Copper Ore Types: Sulfides vs Oxides Copper-containing rock, or copper ore, holds only a small percentage of copper Most of the rock is unwanted material, typically referred to as gangue There are two main copper ore types of interest: copper oxide ores and copper sulfide ores Both ore types can be economically mined,

Sulfide Minerals: Definition, Properties & Examples

Sulfide's characteristic trait of bonding a sulfide anion with various metals means that many important metal ores contain sulfide minerals Some examples of sulfides include galena ( the principle ore mineral for lead and silver), cinnabar (the main ore mineral for …

Riches in Rock: Mineral Resources Flashcards | Quizlet

The high electrical conductivity associated with metallic bonds is found in____ Minerals which have a sufficient metal content to be considered ores The high electrical conductivity associated with metallic bonds results from____ The ability of outer electrons to move freely from atom to atom

ACANTHITE/ARGENTITE (Silver Sulfide) - Amethyst Galleries

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 supplies the majority of the world's needs

US8221709B2 - Hardwood lignosulfonates for separating

Disclosed are compositions and methods for separating gangue material from metallic sulfide ores The compositions typically include a lignosolfonate and do not include a cyanide salt Suitable lignosulfonates may include lignosulfonates, for example hardwood lignosulfonate having a weight average molecular weight of about 3 kDa to about 12 kDa and having a relatively low sulfur content and a

Copper Sulfide Flotation - Mineral Processing & Metallurgy

Copper Sulfide Flotation Reagents Lime is added to the Ball Mill by a Cone Type Dry Reagent Feeder Other reagents, such as cyanide, xanthate, and a frother are fed and controlled by No 12A Wet Reagent Feeders to the classifier and to the conditioner ahead of flotation

Solved: 7-35 Metallic Silver Can Be Obtained From Sulfide

Metallic silver can be obtained from sulfide ores by first roasting the sulfides (Ag2S) to produce silver sulfates (Ag2SO,) which are leached from the ore using boiling water 1 Next the silver sulfate (AgzSO4) is reacted with copper (Cu) to produce copper sulfate (CuSO4) and silver (Ag) as …

Geology of Base-Metal Deposits

GEOLOGY – Vol IV – Geology of Base-Metal Deposits - Sangster DF ©Encyclopedia of Life Support Systems (EOLSS) virtually by definition—is the main economic base metal, although other elements occur as subsidiary byproducts It is important to recognize that—in bimetallic or polymetallic deposits—the base