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roasting antimony sulfides in namibia

roasting antimony sulfides in namibia

ROASTING OF SULFIDE MINERALS In addition to common metals like copper lead zinc and nickel a number of other metals such as antimony bismuth cadmium cobalt mercury and molybdenum occur as sulfide minerals Sulfides are not reduced with the most widely used reducing agents carbon and hydrogen because the free energy change for the ... As a leading global manufacturer of crushing equipment, milling equipment,dressing equipment,drying equipment and briquette equipment etc. we offer advanced, rational solutions for any size-reduction requirements, including quarry, aggregate, grinding production and complete plant plan.

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  • Roasting  an overview  ScienceDirect Topics

    Roasting an overview ScienceDirect Topics

    Oxidation roasting is often used in sulfide ore smelting It is used to remove the sulfur ore arsenic antimony and other harmful impurities in ore In oxidation roasting the sulfide ore is first decomposed into lowvalence sulfide and sulfur and then the oxide is formed The oxidation roasting of some sulfide ores is exothermic

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  • Gold Ore Roasting Techniques

    Gold Ore Roasting Techniques

    Roasting was continued in every test until no trace of SO2 could be detected by smell in the air above the dishes This period of time averaged 95 min During roasting the charges were rabbled carefully every 5 min great care being taken to avoid dust loss

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  • Processing Gold In Antimony Ores  Odanah School

    Processing Gold In Antimony Ores Odanah School

    A twostage roasting process similar to that used for arsenic sulfide ores can also volatilize antimony oxides and prevent adverse reactions such as the production of metallic antimony which can coat the surface of gold particles Nagy et al 1966 or the formation of silver glasses in highsilver ores Matsukawa and Sakai 1956

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  • Antimony Ore Yufeng Namibia

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  • Oxidizing roastingSteel Pipe knowledgeNewsWorld Steel

    Oxidizing roastingSteel Pipe knowledgeNewsWorld Steel

    sulfide oxidation roasting of basic reaction is materials in whole or in part of the sulfide into the roasting method of the oxide Oxidizing roasting is a roasting method most widely used in order to obtain oxides and to recover the heat the price of ingredients as well as harmful to biological soz gas into useful products

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  • Smelting and Roasting Ores to recover gold silver and

    Smelting and Roasting Ores to recover gold silver and

    To roast sulfide ores it takes a good red heat and a good amount of air but not too hot as you dont want to melt them As previously noted materials that have been crushed to small sizes reacts better with the oxygen in the air

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  • antimony ore processing plant flotation machine

    antimony ore processing plant flotation machine

    Antimony Ore ProcessingOre BeneficiationFlotation mineselect product antimonyoreprocessing htmlIntroduction of antimony ore processing The antimony ore beneficiation methodsshould be basedantimony ore processing plant flotation machine

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  • USAC Metallurgy  us antimony

    USAC Metallurgy us antimony

    Sb 2 S 3 3 Na 2 S 2 Na 3 SbS 3 Leaching stibnite with sodium sulfide 2 Na 3 SbS 3 6NaOH 2 Sb 6 Na 2 S 3 H 2 0 32 0 2 Electrowinning Na 3 SbS 3 3 H Sb 3 NaSH Electrowinning SULFIDE ORES The mineral dressing of sulfide ores is primarily accomplished by flotation although it can be accomplished by gravity and hand sort

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  • Phosphate Mineral  an overview  ScienceDirect Topics

    Phosphate Mineral an overview ScienceDirect Topics

    Antimony is also found as the sulfide stibnite Sb 2 S 3 and the sulfide has been used in pigments production of special types of glass and in pyrotechnics Other antimonycontaining minerals are ullmannite NiSbS tetrahedrite Cu 3 SbS 3 and a number of other complex sulfides Bismuth is rather unreactive so it is sometimes found free

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