metallic sulfide ores

Sulfide Ores - an overview ScienceDirect Topics

Complex sulfide ores are fine-grained, intimate associations of chalcopyrite (CuFeS2 ), sphalerite (ZnS) and galena (PbS), disseminated in dominant pyrite, and containing valuable amounts of minor elements. Generally, collectors employed for sulfide recovery are of

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Metal Sulfides - an overview ScienceDirect Topics

Nonferrous metal sulfide concentrates containing arsenic, antimony, and bismuth can be treated prior to smelting by either pyro- or hydrometallurgical routes to recover these elements as by-products. During the thermal treatment, however, a minor part of these elements will remain as an undesirable impurity in the raw nonferrous metal produced.

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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 ...

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Flotation experiment research on a polymetallic

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. The metal minerals from the early formation (mainly pyrite) were broken into the size of breccia and formed a cataclastic texture when stress was

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Sulfide Mining Overview - sosbluewaters

Sulfide mining (also known as metallic mining) refers to mining operations which remove metals, such as copper, nickel, platinum and others, from sulfur bearing ores. ... milling, the ore is crushed to mineral sized particles using metal balls or rods to pulverize ore

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Small Scale Treatment of PM Sulfide Ores - Gold Refining ...

Feb 15, 2020  There is no one universal way of treating sulfide rich precious metal ores - in the mineral kingdom there are all sorts of complex minerals which contain, in addition to gold or silver, complex combinations of lead, zinc, copper, iron, nickel, manganese,

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Sulfide Ores - an overview ScienceDirect Topics

Complex sulfide ores are fine-grained, intimate associations of chalcopyrite (CuFeS2 ), sphalerite (ZnS) and galena (PbS), disseminated in dominant pyrite, and containing valuable amounts of minor elements. Generally, collectors employed for sulfide recovery are of

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Poly-metallic sulfide ore analysis Rigaku Global Website

Poly-metallic sulfide deposits are often major sources of copper, zinc, lead, gold and silver ore. Some of these deposits also contain many various metals such as co- or by-products and impurities. Laboratories in mining sites are often required to analyze large number of samples per day. Therefore, in order to determine multiple elements in ores, simple and fast analysis technique with high ...

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US2839381A - Reduction of metallic sulfide ores - Google ...

US2839381A US479383A US47938355A US2839381A US 2839381 A US2839381 A US 2839381A US 479383 A US479383 A US 479383A US 47938355 A US47938355 A US 47938355A US 2839381 A US2839381 A US 2839381A Authority US United States Prior art keywords hydrogen ore sulfide reduction pipe Prior art date 1955-01-03 Legal status (The legal status is an assumption and is not a

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EXTRACTING METALS FROM SULFIDE ORES

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. The extraction of metals from their ores has been an ...

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Metallic Sulfide Mining Sierra Club

Metallic sulfide mining — also known as hard rock mining — involves extracting valuable metals, like copper or zinc, from sulfide ores, which are rocks and sediments that contain minerals bonded with sulfur ions. To reach these ores, miners deplete the area’s groundwater by pumping it out and then excavate the site using drilling and ...

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Sulfide Mining Overview - sosbluewaters

Sulfide mining (also known as metallic mining) refers to mining operations which remove metals, such as copper, nickel, platinum and others, from sulfur bearing ores. ... milling, the ore is crushed to mineral sized particles using metal balls or rods to pulverize ore

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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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(PDF) Thermodynamics of salt roasting of sulphide ores

Abstract. Thermodynamic analysis of a non-polluting process for the effective treatment of lean multimetallic sulphide ores is presented. The sulphide ore is roasted with sodium chloride in air ...

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Small Scale Treatment of PM Sulfide Ores - Gold Refining ...

Feb 15, 2020  There is no one universal way of treating sulfide rich precious metal ores - in the mineral kingdom there are all sorts of complex minerals which contain, in addition to gold or silver, complex combinations of lead, zinc, copper, iron, nickel, manganese,

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10 Minerals That Have Metallic Luster - ThoughtCo

Sep 02, 2019  The great majority of minerals with metallic luster are sulfide or oxide minerals. Bornite . Bornite is also called peacock ore because of its coloring. "Jonathan Zander (Digon3)"/Wikimedia Commons/CC BY 3.0. Bornite is bronze in color with a bright blue-purple tarnish and has a

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Volcanogenic massive sulfide ore deposit - Wikipedia

Volcanogenic massive sulfide ore deposits, also known as VMS ore deposits, are a type of metal sulfide ore deposit, mainly copper-zinc which are associated with and created by volcanic-associated hydrothermal events in submarine environments.. These deposits are also sometimes called volcanic-hosted massive sulfide (VHMS) deposits. The density generally is 4500 kg/m 3.

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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. The metal minerals from the early formation (mainly pyrite) were broken into the size of breccia and formed a cataclastic texture when stress was

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Metal value recovery from metal sulfide containing ores ...

Metal sulfide-containing ores often contain metal values, such as gold, the platinum group metals and the like, which are difficult to recover because of the "locking" mature of the metal sulfide in the ore. For example, the occurrence of insoluble metal sulfide-locked gold ores has long been a problem for ore

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Sulfide Minerals: Definition, Properties Examples ...

Molybdenum sulfide is the principal ore mineral to obtain molybdenum, a metal commonly used in alloys like stainless steel. This sulfide has a dark gray, metallic appearance and is very soft which ...

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EXTRACTING METALS FROM SULFIDE ORES

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. The extraction of metals from their ores has been an ...

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Sulfide Ore - an overview ScienceDirect Topics

K.A. Natarajan, in Biotechnology of Metals, 2018 Bacterial Depyritization of Sphalerite and Galena. Beneficiation of complex base metal sulfide ores is based on selective production of individual clean concentrates of copper, zinc, and lead. Sphalerite flotation through copper activation becomes complicated when other minerals such as pyrite can get inadvertently activated.

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Metals Extraction from Sulfide Ores with Microorganisms ...

Jan 02, 2019  Metal recovery from metal sulfide ore is carried out by chemolithotrophic bacteria like Acidithiobacillus ferrooxidans and Acidithiobacillus thiooxidans. The same is done by heterotrophic microorganisms in non-sulfide ores. Additionally, for gold and copper extractions, bioleaching is used to extract cobalt, zinc, nickel, and uranium from low ...

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Poly-metallic sulfide ore analysis Rigaku

Poly-metallic sulfide deposits are often major sources of copper, zinc, lead, gold and silver ore. Some of these deposits also contain many various metals such as co- or by-products and impurities. Laboratories in mining sites are often required to analyze large number of samples per day. Therefore, in order to determine multiple elements in ores, simple and fast analysis technique with high ...

More

Metal value recovery from metal sulfide containing ores ...

Metal sulfide-containing ores often contain metal values, such as gold, the platinum group metals and the like, which are difficult to recover because of the "locking" mature of the metal sulfide in the ore. For example, the occurrence of insoluble metal sulfide-locked gold ores has long been a problem for ore

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US4740243A - Metal value recovery from metal sulfide ...

A process for recovering at least one first metal from a metal sulfide-containing ore comprising contacting the ore with an aqueous, acidic composition and at least one reducible manganese-containing material at conditions effective (1) to chemically reduce the manganese, (2) solubilize at least a portion of the metal from the sulfide, and (3) at least partially liberate the first metal from ...

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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 ...

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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. With the aggressive nature of our leach allowing us to process most ores in an hour, our process allows ...

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Sulfide Minerals - ThoughtCo

Jul 01, 2017  The sulfide mineral specimens you see in rock shops come from the deep levels of mines, and most display a metallic luster. Bornite (Cu 5 FeS 4)is one of the lesser copper ore minerals, but its color makes it highly collectible. (more below) Bornite stands out for the amazing metallic blue-green color it turns after exposure to the air.

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Recent and potential metallic mining projects in Wisconsin ...

Feb 11, 2020  The Lynne deposit was discovered in 1990 by Noranda Exploration and is located on forestry land owned by Oneida County within the town of Lynne. It is primarily a zinc sulfide ore with significant lead and silver and minor amounts of gold and copper. The deposit is estimated to be approximately 5.6 million tons recoverable by open pit mining.

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mineral - Sulfides Britannica

Ionic and covalent bonding are found in many sulfides, while metallic bonding is apparent in others as evidenced by their metal properties. The simplest and most symmetric sulfide structure is based on the architecture of the sodium chloride structure. A common sulfide mineral that crystallizes in this manner is the ore mineral of lead, galena ...

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Copper Mining and Extraction Sulfide Ores

The smelter for sulfide ores produces sulfur dioxide gas. This is scrubbed from the flue gases to make sulfuric acid for leaching copper from oxide ores. Scrubbing sulfur dioxide also protects the environment. For example: FeO(s) + SiO 2 (s)→ FeO.SiO 2 (slag) This is

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Photos of Natural Silver Ore, Silver minerals, Crystal ...

The ore also contains considerable other sulfide minerals and some free gold as well. The Comstock is famous for great bonanzas of crushed, mineralized quartz, in part exceedingly rich in silver minerals, were found at intervals along the lode, especially in chambers or vertical fissures probably produced by normal faulting of the hanging wall.

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US4011146A - Process for separation and recovery of metal ...

An improvement in conventional processes for recovering metal values from sulfide ores containing lead, zinc and silver sulfides in which process the metal sulfides are converted to chlorides by chlorination followed by solubilization of the chlorides with a sodium chloride leach and subsequent recovery of the metals from their chlorides in accordance with a conventional flow sheet including ...

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