furnace for roasting sulfides

An investigation of the dependence of roasting . - SpringerLink

1 Jun 2009 ... An investigation of the dependence of roasting characteristics of sulfide nickel concentrates in fluidized bed furnaces on various factors by the ...ConRoast

Prior to the 1960s, the most important way of producing copper was roasting sulphide concentrates, smelting the calcined product in reverberatory furnaces, and ...



gcse 5. Extraction purification lead zinc titanium chromium mineral .



Roasting galena in air converts the lead sulphide into lead(II) oxide . ... The more concentrated lead oxide can then be reduced in a coke fired blast furnace .

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MASc Thesis - T-Space - University of Toronto



concentrates, SO2 evolved from the roasting reactions led to partial formation of metal sulphates. Following the ... 1.1 NICKEL SULPHIDE PYROMETALLURGY .

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6 recovery of mineral values in cupriferous and nickeliferous pyrrhotite



The ordinary rabbled furnace is inimical to the production of all water-soluble copper ... to the Cu2 S during roasting of briquettes of cupric sulfide, CuS. The reac ...

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Copper mining. Chemical reactions.



This is very similar to the removal of impurities in the blast furnace. The liquid left is a mixture of copper sulphides and iron sulphides. It is called a matte.

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Lecture 25: Reduction smelting of zinc sulphide Contents . - NPTel



means sintering and roasting of sulphide concentrate occur simultaneously. The burden ... Furnace (here after ISF), which is very similar to the blast furnace.

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Patent US5254320 - Method for roasting sulphide ores - Google .



A method for roasting sulphide ores or ore concentrates containing precious ... a sulphur-binding lime-containing material are supplied to a roasting furnace in ...

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A STUDY OP THE "ROAST-REACTION" OP LEAD SULFIDE by .



which is the several reactions between galena (lead sulfide) and oxygen (or air) .... roasting and blast furnace smelting steps of modern lead metallur. The term ...

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How to Roast Gold Before Leaching | eHow.com



Some types of ore contain sulfides. ... Place the crushed ore in the roasting furnace. 3 ... Roasting releases sulfides, which smell very bad and can be poisonous ...

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Richard Smith - Peak District Mines Historical Society



Abstract: The Tyrolean process for smelting copper sulphide concentrates, with and without the separation of ... metal in rudimentary furnaces with single tuyeres, blown by hand or ... In common with lead metallurgy, a roasting process must be ...

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Leaching of a gold bearing partially roasted sulphide - SciELO



12 Oct 2001 ... In the partially roasted sulphides bearing ore, gold was observed by .... of two gas fired furnaces, one rotary kiln and one hearth furnace, it was ...

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An Investigation of the Dependence of Roasting Characteristics of .



OF TECHNOLOGICAL PROCESSES. An Investigation of the Dependence of Roasting Characteristics of Sulfide Nickel Concentrates in Fluidized Bed Furnaces ...

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METHOD FOR ROASTING NICKEL SULPHIDE - OUTOTEC OYJ



30 Aug 2012 ... The invention relates to a method for roasting nickel sulphide produced by precipitation into nickel oxide in a fluidized bed furnace.

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Fire Assay Procedure



If sulfides are present, roast ore and place a 16d nail in the crucible. * Place the crucible in the furnace and turn to high heat. When the furnace reaches 1093°C.

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Nickel - Encyclopedia



This rich matte is then mixed with coke and salt-cake and melted down in an open hearth furnace. The nickel sulphide so obtained is then roasted to oxide and ...

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Smelting - Wikipedia, the free encyclopedia



Electric phosphate smelting furnace in a TVA chemical plant (1942) ... In the case of carbonates and sulfides, a process called "roasting" drives off the unwanted ...

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roasting a PGM-ore concentrate - Metals Conferences



27 Sep 2008 ... by a combination of fluid-bed roaster and electric arc furnace. This process is ... roasting of sulfide ores and concentrates with the subsequent ...

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Nickel smelting-MHC INDUSTRIAL CO., LTD.



4 Feb 2013 ... First metal nickel anode electrolysis is roasting nickel sulfide to nickel oxide, use furnace or reverberatory furnace to restore and smelt produce ...

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CPM LCA Database - Production of sulphuric acid by roasting of pyrite



Pyrite, or iron sulphide, is roasted in various types of furnaces, e.g. multiple- hearth furnace, rotary kiln and fluid bed roaster, producing a gas with a somewhat ...

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X-Ray, DTA and TGA analysis of zinc sulfide concentrates and study .



X-Ray, DTA and TGA analysis of zinc sulfide concentrates and study of their charging for roasting in fluidized bed furnace. B. S. Boyanov*, A. B. Peltekov ...

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16.1 Roasting oven, calcining furnace



Roasting is a thermal process for eliminating sulfides, whereby the sulfide and ... The products to be roasted are spread out on a flat pan-shaped furnace plate ...

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Lesson 16



and copper from sulfide ores. the types of pollutants emitted in these .... Figure 16 -3 shows two roasting devices: a multiple-hearth furnace and a fluidized-bed ...

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Zinc Sulfide Concentrates and Optimization of their Roasting in .



calculate the optimal mixing proportions for roasting in fluidized bed furnaces from the studied concentrates. II. RESULTS AND DISCUSSION. The work of the ...

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Nickel metallurgy: Information from Answers.com



Nickel ores are of two generic types, sulfides and laterites. ... The major portion undergoes partial roasting in multihearth or fluidized-bed furnaces to eliminate ...

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Nickel Smelting and Refining - IFC



no significant fuel value, and an electric furnace is needed to ... In flash smelting, dry sulfide ore containing ... Fluid bed roasting and chlorine-hydrogen reduc- ...

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study of kinetics involved in oxidation of nonferrous metal sulphides



The pellets were charged for roasting inside the furnace in a graphite crucible. ... The most common example of roasting is the oxidation of metal sulfide ores.

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Full text of "Leaching gold and silver ores : The Plattner and Kiss .



Silver chloride is made, for lixiviation, by means of heat, in a roasting furnace, ... 13 insoluble in simple water, and the silver is precipitated as silver sulphide, ...

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The History and Evolution of Smelting - BacTech Green



In recent centuries, base metals have been smelted in furnaces -- also ... which burn fuel to melt the dry sulfide (sulfides often are partially roasted), emitting them ...

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roaster manual sept 2012 - Action Mining



There is also a box of parts containing extra furnace insulation blanket, chain lub ... Recommended temperatures for roasting sulfide ores are 750°F, 1150°F and ...

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Patent EP1157139A1 - Treatment of metal sulphide concentrates by .



Treatment of metal sulphide concentrates by roasting and arc furnace smelt reduction. EP 1157139 A1 (text from WO2000050652A1). Abstract. A process for ...

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Chloridizing Roasting Process for a Complex Sulfide Concentrate .



1 Jun 1985 ... Chloridizing Roasting Process for a Complex Sulfide Concentrate ... finally examines the rotary furnace as the preferred equipment for roasting ...

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Characteristics And Roasting Of Zinc Sulfide Concentrates In Fluid .



Characteristics And Roasting Of Zinc Sulfide Concentrates In Fluid Bed Furnace - Document Summary.

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Chloridizing Roasting Process for a Complex Sulfide . - SpringerLink



examines the rotary furnace as the pre- ferred equipment for roasting the types of nickel-copper bearing sulfide concen- trates studied here. 28. INTRODUCTION ...

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Chemistry: The Central Science, Chapter 23, Section 2



The sulfide ore of a less active metal, such as mercury, can be roasted to the free metal: ... Smelting often involves a roasting stage in the same furnace. Two of ...

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Outotec® Fluidization technology



Lurgi constructed the first reactor for roasting of sulfur ... adopted by industry; multiple hearth furnaces and .... exothermic process is the roasting of sulfide ores.

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Sulphating roasting of copper-cobalt concentrates - saimm



ensure homogeneous material distribution over the full furnace area. The roasting process is autothermal. The sulphides in the feed serve as fuel and as reagent ...

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Metallurgy - The Canadian Encyclopedia



Roasting is the heating of the sulphide concentrates in air to temperatures of ... of the roaster together with a flux (silica) are then melted in a furnace (smelting) to ...

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