sulfide ore arsenic

Arsenic Sulfides - an overview ScienceDirect Topics

Arsenic compounds have been known since the days of Ancient Greece and Rome when arsenic sulfide or orpiment (As 2 S 3) was used by physicians to heal and by murderers to poison. Arsenic compounds were mined by the early Chinese, Greek, and Egyptian civilizations who found it could be produced from its ores easily that made it one of the first ...

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REALGAR (Arsenic Sulfide)

The arsenic atoms affect the structure altering it from sulfur's orthorhombic symmetry to realgar's monoclinic symmetry. Realgar occurs in hydrothermal veins with valuable metal sulfide ores and its bright red color can be an aid to prospectors.

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ARSENOPYRITE (Iron Arsenide Sulfide)

Chemistry: FeAsS, Iron Arsenide Sulfide. Class: Sulfides and Sulfosalts. Group: Arsenopyrite Group. Uses: Important ore of arsenic, minor source of gold and as mineral specimens. Specimens. A major ore of arsenic, Arsenopyite can contain a small amount of gold as an impurity. Although an ore of arsenic, it is not intentionally mined for that ...

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Arsenic sulfide - definition of Arsenic sulfide by The ...

Arsenic sulfide synonyms, Arsenic sulfide pronunciation, Arsenic sulfide translation, English dictionary definition of Arsenic sulfide. n. Arsenic trisulfide, As2S3, a yellow mineral used as a pigment. American Heritage® Dictionary of the English Language, Fifth Edition. ... it is an ore of arsenic

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Sulfide Minerals - an overview ScienceDirect Topics

1.3.1 Arsenosulfides. Arsenopyrite (FeAsS), orpiment (As 2 S 3 ), and realgar (AsS/As 4 S 4) are the most common arsenic sulfide minerals, occurring primarily in hydrothermal and magmatic ore deposits. Arsenic is commonly found in sulfide-bearing mineral deposits; especially with gold mineralization.

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Arsenopyrite Mineral Uses and Properties

Arsenopyrite is an iron arsenic sulfide with a chemical composition of FeAsS. It is the most abundant arsenic-bearing mineral and the primary ore of arsenic metal. It is associated with other sulfide minerals in organic-rich sedimentary rocks, metamorphic rocks, and igneous rocks in many parts of the world.

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Arsenic sulfide - Wikipedia

Arsenic sulfide may refer to: Arsenic trisulfide, As 2 S 3, the mineral orpiment. Tetraarsenic pentasulfide, As 4 S 5, similar structure to phosphorus pentasulfide (β-P 4 S 5) Tetraarsenic tetrasulfide, As 4 S 4, the mineral realgar. Tetraarsenic trisulfide, As 4 S 3, the mineral α- or β- dimorphite. Index of chemical compounds with the same ...

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Realgar - Wikipedia

Realgar (/ r i ˈ æ l ˌ ɡ ɑːr,-ɡ ər / ree-AL-gar, -⁠gər), also known as "ruby sulphur" or "ruby of arsenic", is an arsenic sulfide mineral with the chemical formula α-As 4 S 4.It is a soft, sectile mineral occurring in monoclinic crystals, or in granular, compact, or powdery form, often in association with the related mineral, orpiment (As 2 S 3).It is orange-red in color, melts at ...

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Mineralogy of Sulfides Elements GeoScienceWorld

Table 2 shows the main types of ore deposits that contain significant amounts of sulfide minerals, their major ore minerals, the metals extracted from them, and some specific examples (see Cox and Singer 1987; Craig and Vaughan 1990, 1994). Pyrite is abundant in nearly all of these deposits.

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Sulphide Gold Ore Treatment by Leaching and Flotation Process

Apr 18, 2016  Problem with gold recovery from sulphide ore: How may a mill get the maximum recovery of gold from a sulphide ore, at the least capital cost and at the same time obtain the highest net return.This latter point is most important. In many cases a gold mill using an all-cyanide flowsheet with fine grinding of all the ore will report very low gold content in the tailings particularly on an ...

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Arsenic Sulfides - an overview ScienceDirect Topics

Arsenic compounds have been known since the days of Ancient Greece and Rome when arsenic sulfide or orpiment (As 2 S 3) was used by physicians to heal and by murderers to poison. Arsenic compounds were mined by the early Chinese, Greek, and Egyptian civilizations who found it could be produced from its ores easily that made it one of the first ...

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Arsenic release and transport during oxidative dissolution ...

May 05, 2021  Arsenic release from sulfide ore is studied in multidimensional experiments. • Impact of geochemical heterogeneity in flow-through systems. • Multicomponent reactive transport modeling was used for quantitative interpretation. • As-sulfide minerals in the ore undergo oxidative dissolution

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REALGAR (Arsenic Sulfide)

The arsenic atoms affect the structure altering it from sulfur's orthorhombic symmetry to realgar's monoclinic symmetry. Realgar occurs in hydrothermal veins with valuable metal sulfide ores and its bright red color can be an aid to prospectors.

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Arsenopyrite Mineral Uses and Properties

Arsenopyrite is an iron arsenic sulfide with a chemical composition of FeAsS. It is the most abundant arsenic-bearing mineral and the primary ore of arsenic metal. It is associated with other sulfide minerals in organic-rich sedimentary rocks, metamorphic rocks, and igneous rocks in many parts of the world.

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ARSENOPYRITE (Iron Arsenide Sulfide)

Chemistry: FeAsS, Iron Arsenide Sulfide. Class: Sulfides and Sulfosalts. Group: Arsenopyrite Group. Uses: Important ore of arsenic, minor source of gold and as mineral specimens. Specimens. A major ore of arsenic, Arsenopyite can contain a small amount of gold as an impurity. Although an ore of arsenic, it is not intentionally mined for that ...

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Realgar - Wikipedia

Realgar (/ r i ˈ æ l ˌ ɡ ɑːr,-ɡ ər / ree-AL-gar, -⁠gər), also known as "ruby sulphur" or "ruby of arsenic", is an arsenic sulfide mineral with the chemical formula α-As 4 S 4.It is a soft, sectile mineral occurring in monoclinic crystals, or in granular, compact, or powdery form, often in association with the related mineral, orpiment (As 2 S 3).It is orange-red in color, melts at ...

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The Sulfides - Rocks And Minerals 4 U

Today chalcopyrite another sulfide is the primary ore of copper. Though it contains a smaller percentage of copper it is widely distributed. Copper: Sphalerite: Zinc: Cinnabar. Galena. This group of minerals tend to be dense, brittle, and metallic in appearance. Sulfosalts are compounds of sulfur with semimetals like arsenic, bismuth, and ...

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Mineralogy of Sulfides Elements GeoScienceWorld

Table 2 shows the main types of ore deposits that contain significant amounts of sulfide minerals, their major ore minerals, the metals extracted from them, and some specific examples (see Cox and Singer 1987; Craig and Vaughan 1990, 1994). Pyrite is abundant in nearly all of these deposits.

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Establishing thE ProcEss MinEralogy of gold orEs

Iron sulfide ores and arsenic sulfide ores: Iron sulfide ores and arsenic sulfide ores host different proportions of non-refractory and refractory gold. Gold in non-refractory sulfide ores can be recovered by whole-ore cyanidation, or some combination of flotation and cyanidation. Acceptable extraction of refractory gold can only be achieved by

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Sulfide mineral - Wikipedia

Realgar. The sulfide minerals are a class of minerals containing sulfide (S 2−) or disulfide (S 22−) 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.

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mineral - Sulfides Britannica

mineral - mineral - Sulfides: This important class includes most of the ore minerals. The similar but rarer sulfarsenides are grouped here as well. Sulfide minerals consist of one or more metals combined with sulfur; sulfarsenides contain arsenic replacing some of the sulfur. Sulfides are generally opaque and exhibit distinguishing colours and streaks. (Streak is the colour of a mineral’s ...

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US3911078A - Method for removing arsenic and antimony from ...

Method for removing essentially all of the chemically bonded arsenic and antimony from copper sulfide ores. The arsenic and antimony are selectively leached out using Na2S in a basic solution. The resulting Na3AsS4 and Na3SbS4 are converted to the sulfides or to ferric arsenate and ferric antimonate for safe disposal. Sodium and sulfur values are recovered for recycling in the process.

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The Role of Arsenic in the Mining Industry

Arsenic is released into the environment naturally through the weathering, oxidation and erosion of sulfide minerals. [1] These sulfide minerals can form soils with very high concentrations of arsenic, and the arsenic can dissolve in water. [1] An estimated 25% of arsenic emissions into the atmosphere come from natural sources, mostly volcanoes.

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Method for obtaining cobalt and nickel from ores and ore ...

The invention relates to a method for obtaining metals from a cobalt and/or nickel arsenic sulfide ore or ore concentrate and/or a cobalt and/or nickel sulfide ore or ore concentrate, according to which the cobalt and/or nickel arsenic sulfide ore or ore concentrate and/or the cobalt and/or nickel sulfide ore or ore concentrate is reacted with sulfur or sulfur arsenic compounds to a reaction ...

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REALGAR (Arsenic Sulfide)

The arsenic atoms affect the structure altering it from sulfur's orthorhombic symmetry to realgar's monoclinic symmetry. Realgar occurs in hydrothermal veins with valuable metal sulfide ores and its bright red color can be an aid to prospectors.

Read More
ARSENOPYRITE (Iron Arsenide Sulfide)

Chemistry: FeAsS, Iron Arsenide Sulfide. Class: Sulfides and Sulfosalts. Group: Arsenopyrite Group. Uses: Important ore of arsenic, minor source of gold and as mineral specimens. Specimens. A major ore of arsenic, Arsenopyite can contain a small amount of gold as an impurity. Although an ore of arsenic

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Understanding Stress Response to High-Arsenic Gold-Bearing ...

Instead, several proteins involved in the metabolic pathways and stress response, including MBL fold metallo-hydrolase, sulfide:quinone oxidoreductase, and GroEL chaperonin, may play crucial roles in resistance to the sulfide ore concentrate and arsenic, in particular.

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The Role of Arsenic in the Mining Industry

Arsenic is released into the environment naturally through the weathering, oxidation and erosion of sulfide minerals. [1] These sulfide minerals can form soils with very high concentrations of arsenic, and the arsenic can dissolve in water. [1] An estimated 25% of arsenic emissions into the atmosphere come from natural sources, mostly volcanoes.

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Establishing thE ProcEss MinEralogy of gold orEs

Iron sulfide ores and arsenic sulfide ores: Iron sulfide ores and arsenic sulfide ores host different proportions of non-refractory and refractory gold. Gold in non-refractory sulfide ores can be recovered by whole-ore cyanidation, or some combination of flotation and cyanidation. Acceptable extraction of refractory gold can only be achieved by

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Sulfide mineral - Wikipedia

Realgar. The sulfide minerals are a class of minerals containing sulfide (S 2−) or disulfide (S 22−) 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.

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mineral - Sulfides Britannica

mineral - mineral - Sulfides: This important class includes most of the ore minerals. The similar but rarer sulfarsenides are grouped here as well. Sulfide minerals consist of one or more metals combined with sulfur; sulfarsenides contain arsenic replacing some of the sulfur. Sulfides are generally opaque and exhibit distinguishing colours and streaks. (Streak is the colour of a mineral’s ...

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Getchell Gold Mine (MRDS #10310488) AU, AG

Sulfide ore was roasted at 1500 degrees Fahrenheit for one hour and fifteen minutes preparatory to cyanidization. In 1941, a Cottrell electric precipitating unit was installed to save the arsenic that was liberated by roasting the sulfide ore, and in 1943-45, when government wartime restrictions forced the shutdown of many gold producers ...

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Smelting and Roasting Ores to recover gold, silver and ...

This is a concern because Arsenic is actually very common in many gold ores. Selenium, mercury and other toxic elements are also found in many high sulfide gold and silver ores as well. To roast sulfide ores, it takes a good red heat and a good amount of air, but not too hot as you don't want to melt them.

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Health Risks Need to be Considered When Deciding on ...

Feb 28, 2018  “Modern mining technology” that has been promised to be “safe” has not proven itself successful.The World Health Organization lists the ten environmental toxins with greatest concern to human health, and sulfide-ore copper mining releases at least six of these - mercury, lead, arsenic, particulate air pollution, asbestos, and cadmium.

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Mining Industry Copper Sulfide Ore and Flotation Process ...

Jul 09, 2019  (7) Arsenic sulfide copper ore The ore has a high content of arsenic, which is mainly in the form of arsenopyrite. Flotation process to solve the problem of copper and arsenic separation, reduce the arsenic content in the copper concentrate as much as possible. Related post: Copper Ore Types and Distribution in the World

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Carlin Type Gold Deposit - Mineral Processing Metallurgy

Sep 24, 2015  Arsenic sulfides particularly are orange augment and are commonly associated with the mineralization. Black carbon and jasperoid or red brown silica also common but silver and base metals are rare, these are essentially gold only deposits. ... Sulfide ores with carbon are sometimes referred to as being doubly refractory and require the addition ...

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Arsenic Minerals Education Coalition

Arsenic. Arsenic (As) is classed as a semi-metal, or metalloid. In nature it is commonly found as a metal in low levels in most soils and in higher concentrations associated with some copper, lead and zinc ores. The most common arsenic mineral is arsenopyrite, a compound of iron, arsenic, and sulfur.

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12.3 Primary Copper Smelting

Ore concentration is roasted to reduce impurities, including sulfur, antimony, arsenic, and lead. The roasted product, calcine, serves as a dried and heated charge for the smelting furnace. Smelting of roasted (calcine feed) or unroasted (green feed) ore concentrate produces matte, a molten mixture of copper sulfide (Cu2S), iron sulfide

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