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Sulfide Ores an overview ScienceDirect Topics

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 hydrothermal leaching and precipitation Typical concentrate grades are 30 Cu higher with chalcocite bornite and native

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

Sulfide Ore Treatment Gold Silver Copper Cobalt

A procedure was developed for recovering gold silver cobalt copper and zinc from a massive sulfide ore by a hydro metallurgical process The procedure consists of 1 oxygen pressure leaching 2 iron arsenic and copper removal from the leach solution by precipitation 3 selective extraction of cobalt and zinc from solution 4 electro deposition of the cobalt and zinc from the strip

sulfide mineral Definition Examples Identification

The most common sulfide crystalling in this manner is galena PbS the ore mineral of lead A type of packing that involves two sulfide ions in each of the octahedral positions in the sodium chloride structure is the pyrite structure This is a high symmetry structure characteristic of the iron sulfide

Establishing thE ProcEss MinEralogy of gold orEs

9 Bismuth sulfide ores Gold occurs mainly as native gold with minor to moderate amounts of maldonite Submicro scopic gold can also be present in sulfides Maldon Australia Tongguan China Pogo USA 10 Telluride ores Gold occurs as native gold and gold tellurides either

Divining gold in seafloor polymetallic massive sulfide systems

Jun 29 2019· Table 4 Occurrences of gold and silver bearing phases associated ore mineralogy and textural features of Au rich seafloor massive sulfide deposits Full size table Native gold electrum 20 wt Ag and Ag bearing sulfosalts are more common in

Pollution Poverty and People of Color A Michigan Tribe

Jun 12 2012· The state has had copper mines in the past but it was native copper not copper tied up in sulfide Schulz said There are no examples they can point to of sulfide mines that haven t caused

Flotation of Copper Sulfide Ores PDF Free Download

From a processing point of view the sulfide copper and copper–gold ores can be divided into two major groups including ores with moderate pyrite content e g 5–15 of the total ore and massive sulfide ores where pyrite content can be up to 95 of the ore

Copper Ore Types Sulfides versus Oxides Nasdaq

Apr 23 2011· When rich enough native copper ore bodies may be treated to recover the contained copper via a gravity separation circuit Supergene ores rich in sulfides may be concentrated using froth

The Threat of Sulfide Mining Friends of the Boundary

Sulfide mining which is sometimes referred to as hard rock mining is the process of extracting trace amounts of copper nickel and other metals from sulfide ores When sulfide ore comes into contact with water or oxygen a chemical reaction occurs and produces sulfuric acid

Rebellious Ores Sulfides Selenides and Tellurides

Rebellious Ores Sulfides Selenides and Tellurides with the rebellious sulfide ores they were recovering less than 50 Tellurides are minerals containing tellurium While it is rarely found in nature as the native element tellurium is one of the very few elements that chemically combines with gold to form natural stable minerals

froth flotation of sulfide mineral

Process for producing an upgraded sulfide mineral Inquire Now processing leadzinc sulphide mineral flotation 4 7 5· Inquire Now Introduction to Mineral Processing Chevron Phillips Froth flotation is considered to be the most widely used method for ore beneficiation In ore beneficiation flotation is a process in which valuable

9 2 Caveman Chemistry Hands on Projects in Chemical

Though it is found as native metal or as a sulfide ore in its own right it is a common impurity in galena the sulfide of lead and because such large quantities of lead are produced galena is the principle commercial source of silver as well as lead Frequently it is alloyed with copper which produces a

Formation of gold–silver sulfides and native gold in Fe–Ag

Relative concentrations of gold silver and PGE for disseminated sulphide ore are higher than those for massive ore and are highest in low sulphide platinum ore Sluzhenikin et al 1994

Recovery of Gold in Pyritic Sulfide Ores Mine Engineer Com

Using cyanide to recover gold from sulfide ores generally results in 30 to 35 recovery and the best I have heard of is around 50 recovery The fine coating of a iron compound definitely appears to be a key component of the inability of cyanide to efficiently leach low grade pyritic ores

Copper extraction Wikipedia

For sulfide ores both secondary and primary froth flotation is used to physically separate ore from gangue For special native copper bearing ore bodies or sections of ore bodies rich in supergene native copper this mineral can be recovered by a simple gravity circuit Froth flotation

8 Hypogene Ore Characteristics pubs usgs gov

Hypogene ore mineralogy of ancient volcanogenic massive sulfide deposits 138 8–2 and Koski 2005 have reported an association of native gold electrum and maldonite Au 2 Bi with a suite of sulfarsenide and bismuth minerals often contain zones of ore with sulfide assemblages dominated by sphalerite and galena for example

copper sulfide ore process goescherijtuigmaatschappij nl

Copper beneficiation process Copper ore divides into ore sulfide ore oxide and mixing ore according to its oxide rate The main process for copper ore is flotation for refractory mixed copper ore and refractory oxide ore normally use hydrometallurgy process It is a high technological enterprise that integrated research manufacture sales and service The company has multiple subsidiaries

copper sulfide ore

copper sulfide ore Sources of Copper Ore Copper Development To a large extent copper oxide and sulfides are naturally separated in nature As such once mined the processing of the ore generally does not need Copper The mineral native Copper information and Detailed description properties and locality information guide about the

Copper processing Ores Britannica

Copper processing Copper processing Ores Principal forms in which copper ores are found include native copper porphyry copper massive deposits and mixed ores Native copper is simply the metal found unadulterated in nature Occasionally copper is still found in its native form but more frequently it is mixed with other minerals some of which may have value themselves

Sulfide mineral Wikipedia

Copper is an unreactive metal it reacts only slowly with the atmosphere This means that huge lumps of copper metal are found buried in the ground as nuggets This is called native copper The largest nugget of native copper ever found came from Minnesota USA and weighed over 400 tonnes Native copper isn t mined because there is so little

PDF Nickel Sulfide Ores and Impact Melts Origin of the

The Sudbury mining camp is well known for its world class Ni Cu Co sulfide ore deposits which are genetically related to the formation of the Sudbury Igneous Complex Lightfoot and Doherty 2001

Photos of Natural Silver Ore Silver minerals Crystal

In many deposits located in desert regions silver sulfide minerals like acanthite argentite stephanite and polybasite or oxidized by exposure to air and water into a silver chloride also known as cerargyrite as a result this type of silver ore is only found near the surface Once miners get down below the water table this type of

12 Supergene Ore and Gangue Characteristics

sulfide ore and reprecipitated at depth This precipitation of Cu sulfides with high Cu S ratios can produce an economically significant copper enrichment at the reactive redox boundary between massive sulfide protore and downward penetrating fluids The supergene enrichment blanket is overlain by

Producing Copper Nature s Way Bioleaching

Bioleaching is the extraction of a metal from sulfide ores or concentrates using materials found native to the environment namely water air and microorganisms In other words bioleaching is the commercialization of the ability of certain bacteria and archaea found in nature to catalyze the oxidation of sulfide minerals

Copper sulfide Find link Edward Betts

Although native copper was the dominant ore mineral chalcocite copper sulfide was sometimes present and especially in the Mohawk mine copper arsenide Komatiite 2 900 words view diff exact match in snippet view article find links to article

Sulfide Minerals ThoughtCo

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

Ore Hyperleap

Mining Smelting Sulfide minerals Ore genesis Extractive metallurgy Kambalda type komatiitic nickel ore deposits Mineral Lode Porphyry copper deposit Native copper Iron oxide copper gold ore deposits Volcanogenic massive sulfide ore deposit Chromite Lateritic nickel ore deposits Tombstone Arizona Broken Hill ore deposit Iron ore Heavy mineral sands ore

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