Rebellious Ores: Sulfides, Selenides and Tellurides

It is extremely important when treating high sulfide ores with cyanide to keep a sufficient protective base in the solution. Many sulfide minerals also contain things like copper or antimony that can react with the cyanide, preventing the cyanide from leaching out the gold and silver.

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Antimony (Sb) | Antimony

Antimony trioxide may be volatilized from sulfide ores, and can be reduced to metal with charcoal in reverberatory furnaces. Antimony product may also be produced by blast furnace smelting or hydrometallurgical methods. China is the world’s largest producer of antimony.

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1. ehemical and Physical Data

antimony sulfide ore was smelted, persnal1W A airrne concentrations of antimony were mg/m3; the author postulated a predominance of antimony trioxide (Renes, 1953). At another US antimony smelting plant, workers were expsed to antimony ore dust containing priariy antimony trioxide at concentrations (area samples) ranging from to 138

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A fundamental study of the alkaline sulfide leaching of gold

now employed for antimony production. Antimony recovery normally calls for a two step process of leaching followed by electrodeposition. The alkaline sulfide system is employed industrially in the CIS, China and the United States (Anderson, 2000). Essentially, the lixiviant is a mixture of sodium sulfide …

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Metal Extraction Process for High Grade Stibnite of Kharan ...

iron precipitation since stibnite is a sulfide ore. The process is based on a displacement reaction in which iron displaces antimony in the sulfide mineral, as a result of which antimony sulfide is converted to antimony metal and iron sulfide is formed as a byproduct which can …

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Sulfide Ore | Article about Sulfide Ore by The Free Dictionary

Complex sulfide ores containing sulfides of copper, zinc, and lead are especially common, as are complex copper, nickel, cobalt, antimony, and mercury ores. Many sulfide ores contain Pt, Au, Ag, Cd, In, Se, and Te as admixtures. Most deposits of sulfide ores are endogenous, and among those, hydrothermal deposits predominate.

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Tellurium Wikipedia

This ore was known as "Faczebajer weißes blättriges Golderz" (white leafy gold ore from Faczebaja, German name of Facebánya, now Fața Băii in Alba County) or antimonalischer Goldkies (antimonic gold pyrite), and according to Anton von Rupprecht, was Spießglaskönig (argent molybdique), containing native antimony.

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USAC Metallurgy us antimony

SULFIDE ORES: The mineral dressing of sulfide ores is primarily accomplished by flotation although it can be accomplished by gravity and hand sort methods. Recoveries of unoxidized sulfides can be in the mid 90% range with concentrate grades of 60 to 68% for stibnite ores.

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Antimony Ore ProcessingOre Beneficiation,Flotation ...

According to statistics: China now produces 18 major antimony concentrator, 15 handselected job, accounting for %, of which four single antimony sulfide ore processing plant, four sulfide mixed antimony oxide ore processing plant, antimonycontaining complex multimetal ore processing plant 7.

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Antimony Sulfide Ore

antimony sulfide ore was smelted, persnal1W A airrne concentrations of antimony were mg/m3; the author postulated a predominance of antimony trioxide (Renes, 1953). At another US antimony smelting plant, workers were expsed to antimony ore dust containing priariy antimony trioxide at concentrations (area samples) ranging from to 138

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Refractory Gold Ore Treatment Methods

Metallurgical ContentGold Leaching Processing of Arsenic OreMispickel (Arsenopyrite: FeAsS).6Leaching and Recovering Gold from Antimony MineralsStibnite (Antimony Sulphide, Sb2S2)Telluride Gold Ore ProcessingSolubility of TelluridesGold Extraction from Carbonaceous OreList Gold Refractory Process Methods Where gold is associated with arsenic, antimony, tellurium, and …

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The metallurgy of antimony ScienceDirect

In general the lowest grades of sulfide ores containing 5–25% antimony are volatilized to antimony trioxide: 25–40% antimony ores are smelted in a blast furnace: and 45–60% antimony ores are treated by liquation or iron precipitation.

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Selective removal of antimony from refractory gold ores by ...

Ultrasound is used to enhance the removal of antimony from the refractory gold ores in alkaline sodium sulfide leaching process. The effects of ultrasonic time, temperature, reage

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Purchasing Antimony OreHuachang Antimony Industry

Huachang Antimony Industry purchases antimony materials regularly, such as antimony ore, antimony concentrates, oxide antimony ore, sulfide antimony ore and various raw materials contain antimony, email:import, Tel:862425442052/25442022, Our company has 8 professional production lines to smelt all kinds of complicated antimony materials with environmental …

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Froth Flotation Method JXSC Machine

Gold, silver and xanthate form insoluble xanthate. The order of solubility product is after Mercury and before bismuth and antimony, so it can be separated from other metal minerals. When flotation of gold and silver sulfide ores, the general xanthate dosage is 50150 g/t.

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Ore genesis Wikipedia

Ore genesis theories for these ores are wide and varied, but most involve metamorphism and igneous activity. Lithium is present as spodumene or lepidolite within pegmatite. Carbonatite intrusions are an important source of these elements. Ore minerals are essentially part of the unusual mineralogy of carbonatite. Phosphate

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Sulphide Leaching Mineral Processing Metallurgy

Methods of leaching sulphide ores can be: in absence of oxidizing agents in presence of oxidizing agents Bacterial leaching Absence of oxidizing agents Acid leaching: Dilute acids dissolve some metal sulphides with liberation of H2S, ZnS + 2H+ ^ Zn2+ + H2S Three types of sulphides can be encountered. Completely soluble sulphides: Zns, CoS, NiS, FeS Slightly soluble, FeS2.

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Antimony Ore | MSquare Mining

Jan 11, 2019· Antimony is a lustrous tinwhite metal. Although it is usually described as a metal, it possesses mixed metallic and nonmetallic characteristics, and is more properly described as a semimetal or metalloid. The antimony ore found in our mine is Stibnite, which is a sulfide bearing ore and is concentrated using a froth flotation process.

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roasting antimony sulfides

Antimony occurs as an indigenous metal, but generally you find it the form of antimony (III) sulfide. It is from this that antimony is taken out for trading purposes by roasting antimony (III) sulfide to oxidize it and further reduction is done by combining it with either iron or carbon.

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Antimony Wikipedia

The extraction of antimony from ores depends on the quality and composition of the ore. Most antimony is mined as the sulfide; lowergrade ores are concentrated by froth flotation, while highergrade ores are heated to 500–600 °C, the temperature at which stibnite melts and separates from the gangue minerals.

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Procedure for processing sulphide gold containing arsenic ...

Method for processing sulfide goldarsenicantimony concentrates or ores, comprising preparing a mixture of arsenicantimony concentrates or ores with halide, big mixture with gaseous compounds and their condensation and getting gold candle and leaching of gold, characterized in that the mixture prepared from the concentrate or ore and chloride ...

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Antimony trisulfide Wikipedia

Antimony trisulfide (Sb 2 S 3) is found in nature as the crystalline mineral stibnite and the amorphous red mineral metastibnite. It is manufactured for use in safety matches, military ammunition, explosives and fireworks. It also is used in the production of rubycolored glass and in plastics as a flame retardant.

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Type metal Wikipedia

Alchemists had shown that when stibnite, an antimony sulfide ore, was heated with scrap iron, metallic antimony was produced. The typefounder would typically introduce powdered stibnite and horseshoe nails into his crucible to melt lead, tin and antimony into type metal. Both the iron and the sulfides would be rejected in the process.

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Sulfide Wikipedia

I could tell you about its moderately fascinating role in the history of eye makeup. I could tell you about its glittering career as a fuel in fireworks. I could even tell you about the strange pattern known as the ’Philosopher’s signet star’ that forms when stibnite antimony sulfide ore ­ is used for extracting metallic antimony.

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20 Interesting Facts About Antimony Brian D. Colwell

May 19, 2019· The alchemist Basil Valentine is sometimes credited with “discovering” the element antimony. He described the extraction of metallic antimony from its sulfide ore in his treatise “The Triumphal Chariot of Antimony,” published sometime between 1350 and 1600.

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Stibnite Wikipedia

Stibnite, sometimes called antimonite, is a sulfide mineral with the formula Sb 2 S soft grey material crystallizes in an orthorhombic space group. It is the most important source for the metalloid antimony. The name is from the Greek στίβι stibi through the Latin stibium as the old name for the mineral and the element antimony.

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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 darkcolored streaks, and an igneous origin.

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Antimony Leaching from Stibnite and Complex Ores*

ANTIMONY LEACHING FROM STIBNITE AND COMPLEX ORES1 John Kwong2, Allen Pratt2 and Gianluigi Botton2 Abstract. To shed light on the leaching of Sb from mine wastes containing stibnite, two series of experiments were conducted. In one experiment, polished slabs of a museumgrade stibnite and a mixedsulfide ore sample containing 28% Sb were

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Newsroom

Although most of the new production of Mexican antimony is from the Wadley Mine, the production from the Sierra de Guadalupe Mines is also ramping up. Work has included the construction of a mining camp at the Santa Monica drift which contains sulfide ore, and production from the Santa Fe drift that contains primarily oxide ores.

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Photos of gold ores, quartz, telluride gold ore and gold ...

By refractory ore is meant one that requires roasting before amalgamation will take place. The heavy sulfides as copper, lead and antimony require this method of treatment, that is the condition of the gold in the mineral will not allow of its immediate union with mercury upon the amalgamation plates. The fourth class of gold ores comprises the ...

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USAC Antimony Terminology

printer friendly copy. TERMINOLOGY · “Hand sort” (considered “direct shipping ore (DSO)”) in Mexico is typically oxide ore (the mineral is senarmontite or valentinite) that has been upgraded by hand sorting to a grade of 3060% contained antimony. Alternatively it can be sulfide ore (the mineral is stibnite) that has been upgraded by hand sorting to 3060% contained antimony.

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Roasting in Metallurgy Mineral Processing Metallurgy

In metallurgy, the operation of roasting, as a preliminary to chlorination, has for its object the expulsion of the sulphur, arsenic, antimony and other volatile substances existing in the ore, and the oxidation of the metals left behind, so as to leave nothing (except metallic gold) which can combine with chlorine when the ore is subsequently treated with it in aqueous solution.

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US4078917A Extraction of antimony trioxide from antimony ...

Disclosed is a process for extracting antimony trioxide from antimony sulfide ore concentrate by solubility differential of the trioxide in lower alkanol solutions of sodium or potassium hydroxide and wherein the total amount of water contained in the concentrate, the alkanol and the hydroxide is not more than volume percent of the antimony sulfide content; which process includes ...

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