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Roasting Of Copper Sulphide

The kinetics of the roasting of iron and copper sulfides in a pulsating layer was studied and the kinetic parameters of the processes were determined. The determination of the order of the roasting reactions and activation energy in the MeS - Na 2 CO 3 - O 2 system is based on the differential method. Using the dependences of the degree of conver.

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  • Copperi Sulfide - Wikipedia

    2020-7-3CopperI sulfide is a copper sulfide a chemical compound of copper and sulfur. It has the chemical compound Cu 2 S. It is found in nature as the mineral chalcocite. It has a narrow range of stoichiometry ranging from Cu 1.997 S to Cu 2.000 S. CopperI sulfide Names IUPAC name. Copper.

  • Metallurgical Calculations Roasting And Smelting Copper

    2015-8-27of copper sulphide present there is therefore 0.8 per cent of copper in the matte and conversely for every 1 per cent of copper in the matte there is 1.25 per cent of copper sulphide in it. The rest of the matte being iron sulphide which contains 56 parts iron to 32 sulphur it.

  • Copper Smelting Chemistry Tutorial - Aus-E-Tute

    2019-6-21Roasting reduces impurities in the copper ore and produces calcine a mixture of products Concentrated enriched ore is heated to between 500 o C and 700 o C in air. Some impurities in the ore such as arsenic and antimony are oxidied and form volatile gases which can be removed.

  • Metallic Sulphide And Sodium Carbonate Interacting

    2015-12-34541993 USA offers joint sulphatiation roasting of sulphide ores and carbonate or bicarbonate of alkali metals for extracting non-ferrous metals copper nickel cobalt and inc. Studies of the behavior of PbS Cu 2 S Bi 2 S 3 FeS 2 in molten salt of Na2CO3-NaCl showed that PbS when reacting with Na 2 CO 3.

  • Agiven Below Are The Steps For Extraction Of Copper

    2020-4-271.a Roasting of copper sulphide.2Cu2S Copper sulphide 3O2 2Cu2O Copper oxide 2SO22. b Reduction of copper oxide with copper sulphide.2Cu2O Cu2S 6Cu SO23. Electrolytic refiningAt positive electrode impure copper dissolvesCu s Cu2aq 2eAt negative electrode pure copper.

  • Conroast - Mintek Welcome To Mintek - Mintek

    2012-2-7A number of processes have been researched which treat dead-roasted copper sulphide concentrates to produce blister-grade copper without producing and converting matte. Dead roasting of copper concentrates to a sulphur content of less than 1.5 achieves an immediate removal of 96 to 98 of the original sulphur.

  • Cbse 12Th Chemistry Board Exam 2020 Important

    Check important questions and answers for Class 12 Chemistry Board Exam 2020 from Chapter 6 - General Principles and Processes of Isolation of Elements. These questions are based on the latest .

  • Comprehensive Utiliation Technology Of Arsenic Sulphide

    The treatment processes of arsenic sulphide slag produced in copper smelting are reviewed and a new developed technique of acidic oxidiation pressure leaching is further introduced in this paper. After the pressure leaching the extraction of copper arsenic and .

  • Base Metals Recovery From Copper Smelter Slag By Oxidising

    This is higher than the stoichiometric need for oxidation of copper sulphide and ferrous iron according to reactions 2 and 4. Without adding of hydrogen peroxide pulp filtration was difficult. H2O2 addition to the leaching system considerably decreased iron dissolution from over 90 to less than 5 while it increased the copper recovery from 60 to 85.

  • Neet Chemistry General Principles And Processes Of

    Which of the following statement is incorrect about the extractive metallurgy of copper A Matte chiefly consists of cuprous sulphide and some ferrous sulphide. B Most of the impurity of iron sulphide is removed as fusible slag during roasting. C The copper pyrites is.

  • Copper Sulfide Roasting Of Copper Sulphide

    2018-10-1By the technology of advanced copper hydrometallurgy which is heap leaching-solvent extraction-electrodeposition for treating low grade copper oxide ore or roasting-leaching-electro-deposition for treating copper sulphide ore.

  • An Investigation Into The Sulphation Roasting

    2020-3-24Potential new ore deposits containing significant levels of enargite a copper arsenic sulphide mineral are being considered for development. The processing of high arsenic copper concentrates directly in copper smelters is difficult due to environmental concerns.

  • Pyrite Roasting An Alternative To Sulphur

    2009-10-15The roasting of sulphide ores and concentrates is often the first step in the production of metals or chemicals. In many processes the production of sulphuric acid is viewed as a . metals especially copper inc and lead and to a lesser extent cobalt nickel and gold. In.

  • Processing Copper Sulphide Concentrates

    Roasting is a process of heating of sulphide ore to a high temperature in presence of air. It is a step of the processing of certain ores.More specifically roasting is a metallurgical process involving gassolid reactions at elevated temperatures with the goal of purifying the metal components. . separates molybdenite from copper .

  • Roasting Of Copper - Payforworknl

    METHOD OF ROASTING COPPER SULPHIDE CONCENTRATES . Aug 07 1973 A method of roasting copper-iron-sulphide ore concentrate or mixture wherein the ratio of sulphur values to copper values is preferably at least one to yield a calcined product for the separation and recovery of copper values by acid leaching and electrolytic deposition having at least 99 percent of its copper values soluble .

  • Roasting Of Sulphides Gives The Gas X As A By-Product

    In the extraction of copper from its sulphide ore when ore is subjected to roasting some of it is oxidised to Cu 2 O which reacts with the remaining Cu 2 S sulphide ore to give copper metal. Cu 2 S 2Cu 2 O 6Cu SO 2 In this process Cu 2 S behaves as reducing agent.

  • Sulfide Iron Ore Benificiation Roasting

    Roasting antimony sulfides . problem when roasting iron from antimony ore - Extraction of copper from copper sulfide minerals by roasting and smelting. roasting antimony sulfides - . Stibnite is a toxic antimony sulfide mineral with an orthorhombic crystal lattice and a source . problem when roasting iron from antimony ore .

  • Lime Concentrate Process For Roasting Of Copper

    Lime concentrate process for roasting of copper-bearing sulphides - Part 2 effect of sulphidelime ratio air flow rate pellet sie and porosity on reaction kinetics Ohne Sprachangabe.

  • Optimiation Of The Process Roasting For Roughing

    2014-4-29Earlier 4-6 the optimiation process of roasting roughing copper sulphide concentrate under autogenous oxidation regime. The dependence of the maximum temperature of the autogenous roasting on the content of sulfur in the concentrate at different speeds of the air supply. In order to avoid melting the granules in the material used as.

  • A Techno-Economic Comparison Of

    About 90 of world copper production is produced pyrometallurgically from sulphide-based copper minerals with the remainder from oxide-based copper minerals Ayres . et al 2002 Davenport . et al 2002. Among the copper sulphide minerals the main one is chalcopyrite CuFeS. 2 comprising 50 of total copper production CDAA 2012.

  • How Is Copper Extracted From Its Sulphide Ore

    In the extraction of copper from its Sulphide Ore when ore is subjected to roasting some of it is oxidised to Cu 2 O which reacts with the remaining Cu 2 S to give copper metal. In this process Cu 2 S behaves as reducing agent.. 2Cu 2 S3O 2 heat2Cu 2 Os2SO 2 g. 2Cu 2 OCu 2 Sheat 6CusSO 2 g. In electrolytic refining of copper the impurities left behind at anode called .

  • I Explain The Steps For Extraction Of Copper From Its

    I Extraction of copper metal - Copper glance Cu2S 1. Concentration of the ore removal of unwanted metals and gangue to purify the ore is done by Froth floatation method as it is a sulphide ore. 2. Roasting Copper glance Cu2S is roasted in the presence of air. Roasting turns copper glance ore of copper into copper I oxide. 3.

  • Molybdenum Processing - Imoa International

    Flotation separates the metallic minerals from the gangue this way and in the case of copper molybdenum ores separates molybdenite from copper sulphide. The resulting MoS 2 concentrate contains between 85 and 92 MoS 2. Further treatment by acid leaching can be used to dissolve impurities like copper and lead if necessary.