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matte in extraction of copper
Slags and mattes in vanyukov’s process for the extraction
Slags and matte in Vanyukov’s process, an autogeneous method of processing sulfide concentrates of nonferrous metals used in a specially designed furnace at the Balkhash copper-smelting plant (Kazakstan), have been characterized by scanning electron microscopy (SEM), energy-dispersive spectroscopy (EDS), and X-ray diffraction (XRD). The liquid matte was shown to have contained 3.6
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In the extraction of copper, the copper matte is a mixture of
copper ( I) sulphide and iron ( I I I) sulphide. 33%. Solution: In the extraction of copper, 'matte' is formed which is a mixture of. C u 2 S, i e, copper (I) sulphide and FeS, ie, iron (II) sulphide.
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METALLURGY OF COPPER-EXTRACTION OF COPPER
2012-7-24 Copper metal is extracted from molten matte through bessemerization . The matte is introduced in to Bessemer converter which uphold by tuyers. The air is blown through the molten matte. Blast of air converts Cu2S partly into Cu2O which reacts with remaining Cu2S to give molten copper. 2Cu2S + 3O2 è 2Cu2O + 2SO2.
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Copper Mining and Extraction Sulfide Ores
The liquid left is a mixture of copper sulfides and iron sulfides. It is called a matte. Stage 5: Conversion of matte to copper blister The liquid matte is oxidised with air to form blister copper in a converter. Blister copper from the smelter is poured into the anode casting
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Pressure oxidative leaching of lead-containing copper matte
2009-3-1 The pressure oxidative leaching of lead-containing copper matte is studied systematically. The effects of leaching time, oxygen partial pressure, leaching temperature, agitation speed, acid addition and initial Cu 2+ concentration on the extraction of copper and iron are investigated. The effect of initial Cu 2+ concentration is insignificant compared to the other reaction parameters.
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Oxidation Potentials in Matte Smelting of Copper and
2014-8-1 The oxidation potential, given as the base-ten logarithm of the oxygen partial pressure in bars and the temperature [log pO2/T, °C], defines the state of oxidation of pyrometallurgical extraction and refining processes. This property varies from copper making, [−6/1150]; to lead/zinc smelting, [−10/1200]; to iron smelting, [−13/1600]. The current article extends the analysis to the
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Extraction of Copper from Copper pyrite Grade 12
The lower end of blast furnace has two openings for slag and copper matte. Fig: Blast Furnace for extraction of copper. Bassemerisation The molten matte is mixed with little
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Extraction Of Copper Mining, Concentration, Smelting
2021-11-25 Copper Smelting means that the concentrated ore is heated strongly with silicon dioxide (silica), calcium carbonate (CaCO 3) and air in a furnace. The major
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Copper Environmental Profile
2019-3-4 “matte” containing 50 70 percent copper. The matte is either flash converted or processed in a converter resulting in blister copper of 98.5 99.5 percent copper content. In the next step, the blister copper is fire extraction of the copper ore at the mine to the production of copper cathode, both primary and secondary. The study
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The Extraction of Copper Chemistry LibreTexts
2021-6-7 The method used to extract copper from its ores depends on the nature of the ore. Sulfide ores such as chalcopyrite (\(CuFeS_2\)) are converted to copper by a different method from silicate, carbonate or sulfate ores. Chalcopyrite (also known as
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Pressure oxidative leaching of lead-containing copper matte
2009-3-1 The pressure oxidative leaching of lead-containing copper matte is studied systematically. The effects of leaching time, oxygen partial pressure, leaching temperature, agitation speed, acid addition and initial Cu 2+ concentration on the extraction of copper and iron are investigated. The effect of initial Cu 2+ concentration is insignificant compared to the other reaction parameters.
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Physicochemical properties of matte-slag melts taken from
The properties of liquid slag and matte were studied in the autogeneous extraction of copper which occurs in the Vanyukov’s furnace, applied in the Balkhash copper-smelting plant (Balkhash Group
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Leaching of Copper Sulphides and Copper Mattes in
2007-4-25 The leaching of chalcocite (Cu 2 S) and copper-lead matte in oxygenated acidic chloride-sulphate leachants at 85°C has been studied.. Copper leaches from both materials via a two stage process, the overall reactions being. and. The chloride ions are believed to promote the formation of a crystalline porous sulphur layer on the reacting particle so that essentially complete copper extraction
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I. PRINCIPLES OF EXTRACTIVE METALLURGY
2012-8-14 Conversion of matte to metallic copper in a side blown converter Oxidation of FeS to FeO to form slag Conversion of Cu2S to Cu Cu,5111 +o, (0) 2Cu (I) SO2 (g) Matte Smelting of Cu Copper Ore blister Cu 14 Chalcopyrite (CuFeS2) Sulphides of metal such Fe, Pb, Zn and silicates Matte smelting in a reverberatory CompOuent's Copper matte [wt-1.6]
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Efficient Synchronous Extraction of Nickel, Copper, and
2020-6-18 Consequently, developing an efficient and environmentally friendly method to synchronous extraction of nickel, copper, and cobalt from low‒nickel matte is a highlighted issue 8,9,10.
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(PDF) Copper matte slag reaction sequences and
In this study, the kinetic behavior of precious metals Au, Ag, Pt, and Pd between copper matte and iron-silicate slag was investigated at a typical flash smelting temperature of 1300 °C in both
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Electrolysis of Converter Matte in Molten CaCl2-NaCl
The electrolytic production of nickel-copper alloy by electrochemical reduction of converter matte in molten salt has been investigated. The sintered solid porous pellets of Ni3S2, Cu2S and converter matte were electrolyzed at a voltage of 3.0 V in molten CaCl2-NaCl under the protection of argon gas at 700℃, respectively. The electro-reduction processes were investigated and the products
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The Extraction of Copper Chemistry LibreTexts
2021-6-7 The method used to extract copper from its ores depends on the nature of the ore. Sulfide ores such as chalcopyrite (\(CuFeS_2\)) are converted to copper by a different method from silicate, carbonate or sulfate ores. Chalcopyrite (also known as
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Extraction of copper from copper pyrite left CuFeS2 class
Complete step by step answer: Process for extraction of copper from copper pyrite. At the starting copper pyrite is roasted in a reverberatory furnace because on roasting we will get copper oxide from the copper pyrite from which the copper can be extracted by doing reduction. 2
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Dissolution of copper from smelting slag by leaching in
2017-10-29 Leaching of copper smelting slag in chloride media was studied. The lixiviants used were aqueous solutions of hydrochloric acid (0.5-2.0 M HCl) as well as hydrogen peroxide and hydrochloric acid (0.5-3.0 M H 2O2, 1.0 M HCl). The maximum final copper extraction from the slag of 73% was attained with 3 M H 2 O 2
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Nickel: smelting, producing-Metalpedia
After producing the nickel matte, further processing is done via the Sherritt-Gordon process. First, copper is removed by adding hydrogen sulfide, leaving a concentrate of only cobalt and nickel. Then, solvent extraction is used to separate the cobalt and nickel, with the
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Dissolution of copper from smelting slag by leaching in
2017-10-29 Leaching of copper smelting slag in chloride media was studied. The lixiviants used were aqueous solutions of hydrochloric acid (0.5-2.0 M HCl) as well as hydrogen peroxide and hydrochloric acid (0.5-3.0 M H 2O2, 1.0 M HCl). The maximum final copper extraction from the slag of 73% was attained with 3 M H 2 O 2
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What is the main composition of matte A CuS B CuO C
The copper matte is the substance containing the mixture of iron sulphide, ( F e S) and copper sulphide, ( C u 2 S) . Hence, the main component present in the matte is copper sulphide. The matte is a phase of copper extraction before the final reduction. The roast ore is blended well with sand, (silica -. S i O 2.
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Analysis of the effects of changes in operating conditions
2013-8-20 Hydrometallurgical extraction of copper consists of three main unit operations: leaching, solution purification, and metal recovery. During leaching, the valuable components of the ore are leached in an aqueous solution, known as the lixiviant. Sulphuric acid is commonly used as a lixiviant. The slurry formed is sent
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Efficient and selective recovery of Ni, Cu, and Co from
2016-4-29 Low-nickel matte was intensively characterized, and Ni, Cu, and Co were determined to exist mainly as (Fe,Ni) 9 S 8 and FeNi 3, Cu 5 FeS 4, and (Fe,Ni) 9 S 8 and Fe 3 O 4 (in isomorphic form), respectively. The efficient and selective extraction of Ni, Cu, and Co from the low-nickel matte in an (NH 4) 2 S 2 O 8 /NH 3 ·H 2 O solution system was studied. The effects of (NH 4) 2 S 2 O 8 and NH 3
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Explain the role of each of the following: (i) NaCN in the
(ii) Copper matte contains Cu 2 S and FeS. In the blast furnace, copper matte is added with powdered coke and silica. The oxidation of ore takes place in this process. As a result, cuprous oxide and ferrous oxide are produced. The role of silica in this process is to remove the iron oxide obtained as ‘slag’.
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Extraction of Copper at Elevated Feed Concentrations
EXTRACTION OF COPPER AT ELEVATED FEED . CONCENTRATIONS. R.E. MOLNAR, N. VERBAAN –– SGS. ABSTRACT. A number of flowsheets have been designed and operated, or are currently being considered, to extract copper . from leach solutions having much more copper than the 4 g/L levels typically found in heap leach liquors.
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Extraction of Platinum Group Metals IntechOpen
2018-2-21 Matte consists of base metal sulphides (cobalt, copper, iron and nickel). Matte serves as a collector for the PGMs [6, 7, 14]. Operating temperature of matte and slag varies with the composition of the concentrate . Typical smelter operating
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Copper Smelting Chemistry Tutorial AUS-e-TUTE
2021-9-30 Conversion of Matte into Blister Copper (impure copper) Air is blown through the molten matte which converts iron(II) sulfide to iron(II) oxide and sulfur dioxide. 2FeS + 3O 2 → 2FeO + 2SO 2(g) Iron(II) oxide, FeO, slag is skimmed off. Relatively pure copper(I) sulfide, Cu 2 S, accumulates in the bottom of the converter.
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Sulphur Refining of Gold Mineral Processing & Metallurgy
2016-3-23 The matte, as a rule, can be knocked off. If the gold and matte are poured into a mould there is often the greatest difficulty in separating them. A complex matte, consisting as it often does of gold, silver, antimony, copper, and iron sulphides, clings persistently to the gold bar, and is not appreciably attacked by nitre or sulphuric acid.
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