separation of copper sulphide and nickel sulphide matte in n

RU2495145C1 - Separation method of copper-nickel nis

FIELD: metallurgy. SUBSTANCE: separation method of copper-nickel nis matte containing copper, cobalt and iron into copper and nickel concentrates involves its treatment with melt of alkali metal chloride for dilution of copper sulphide in it. Then, nickel sulphide is separated from copper sulphide by draining chloride melt with copper sulphide diluted in it and recovery of melt of alkali metal ...

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Separation of nickel from copper - THE INTERNATIONAL ...

The iron sulfide along with the associated nonferrous sulfide minerals is comminuted to at least about 100% minus 20 mesh Tyler Screen Size (T.S.S.) in order to insure good solid-liquid and solid-gas contact and dispersion and to insure good separation of nickel from copper with corresponding high grade copper concentrates being obtained.

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Separation of nickel from copper in autoclave by ...

Claim 1. In a process for the separation of nickel from copper contained in solid particles selected from the group consisting of ground copper and nickel-containing sulphidic matte and sulphidic alloys, which particles have been slurried in an acidic solution and chlorine leached at atmospheric pressure to produce a slurry of particles in a chloride solution, the improvement comprising ...

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Segregation-separation of copper from nickel in copper ...

The data of the 675° C. segregation roast show copper recoveries in excess of 80% with good selectivity can be obtained by practice of the present invention. A copper nickel bulk flotation sulfide concentrate containing 13.5% copper and 2.7% nickel was dead roasted at 850° C. to a sulfur content of 0.2%.

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Efficient Synchronous Extraction of Nickel, Copper, and ...

2020-6-18  Synchronous extractions of nickel, copper, and cobalt by selective chlorinating roasting and water leaching to low–grade nickel–copper matte. Separation and Purification Technology 195, 149 ...

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Dissolution of nickel (74%)-copper (4%)-sulphide matte ...

A comparative study was conducted to assess the performance of 1 N solutions of hydrochloric acid, ferrous chloride and ferric chloride solutions to dissolve the 74% Ni-4% Cu-20% S nickel sulphide matte anodes. The essential variables considered here were: temperature (25° and 75° C), oxygen and controlled potential. The relative aggressiveness as estimated by the potentiokinetic ...

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Direct Reduction of Heavy Nonferrous Metals from Sulfide ...

2020-12-28  Abstract The results of long-term work of the group of authors on the problem of the direct reduction of heavy nonferrous metals directly from sulfide compounds contained in concentrates (lead) and metallurgical products (copper, nickel)—white matte and copper and nickel concentrates—from the separation of a converter matte are summarized. The preparation of materials for the reduction and ...

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A novel approach for metal extraction from metal sulfide ...

2021-7-15  Chalcocite (Cu 2 S) is the main source for metallurgical production of copper worldwide but it usually co-exist with nickel sulfide in nature. To develop an efficient and green process for the separation and extraction of valuable metals from high-grade matte, we performed density functional theory (DFT) calculations and experimental studies to elucidate chlorination mechanism of Cu 2 S with ...

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THE APPLICATION OF THE CESL NICKEL PROCESS TO

2015-11-20  In 1995, CESL commenced benchscale testwork on pressure oxidation of nickel-copper-cobalt sulphide concentrates. Initial results were favourable, and a flowsheet was developed. Additional unit operations were built at the copper pilot plant in early 1996 to allow for nickel – cobalt recovery and a campaign was run in the last half of 1996.

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Copper matte - slag reaction sequences and separation ...

2019-2-21  sulfide from the matte phase, increasing copper content (matte grade) as well as forming more slag in the processing vessel. As the slag is formed, the matte will start to coagulate by surface forces, once its droplet size reaches a high enough value, and settle through the slag layer due to

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METHOD FOR COMPREHENSIVELY RECYCLING COPPER

Disclosed are a method for comprehensively recycling a copper-nickel sulfide ore and a system thereof. Under normal pressure conditions, a copper-nickel sulfide ore concentrate can be directly leached out or a low nickel matte can be obtained by matte smelting the copper-nickel sulfide ore. During the leaching, the leaching ratio for nickel, cobalt and iron is up to 99% or more and hardly any ...

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Nickel: smelting, producing-Metalpedia

In hydrometallurgical processes, nickel sulfide ores undergo flotation (differential flotation if Ni/Fe ratio is too low) and then smelted. 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 ...

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Dissolution of nickel (74%)-copper (4%)-sulphide matte ...

A comparative study was conducted to assess the performance of 1 N solutions of hydrochloric acid, ferrous chloride and ferric chloride solutions to dissolve the 74% Ni-4% Cu-20% S nickel sulphide matte anodes. The essential variables considered here were: temperature (25° and 75° C), oxygen and controlled potential. The relative aggressiveness as estimated by the potentiokinetic ...

More

A novel approach for metal extraction from metal sulfide ...

2021-7-15  Chalcocite (Cu 2 S) is the main source for metallurgical production of copper worldwide but it usually co-exist with nickel sulfide in nature. To develop an efficient and green process for the separation and extraction of valuable metals from high-grade matte, we performed density functional theory (DFT) calculations and experimental studies to elucidate chlorination mechanism of Cu 2 S with ...

More

METHOD FOR COMPREHENSIVELY RECYCLING COPPER

Disclosed are a method for comprehensively recycling a copper-nickel sulfide ore and a system thereof. Under normal pressure conditions, a copper-nickel sulfide ore concentrate can be directly leached out or a low nickel matte can be obtained by matte smelting the copper-nickel sulfide ore. During the leaching, the leaching ratio for nickel, cobalt and iron is up to 99% or more and hardly any ...

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Copper matte - slag reaction sequences and separation ...

2019-2-21  sulfide from the matte phase, increasing copper content (matte grade) as well as forming more slag in the processing vessel. As the slag is formed, the matte will start to coagulate by surface forces, once its droplet size reaches a high enough value, and settle through the slag layer due to

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Distribution of Copper, Nickel, Cobalt and Iron between ...

Jinchuan nickel-copper flash smelting slag is rich in iron, nickel, cobalt and copper, and JISCO converter slag is rich in iron, manganese and high CaO, etc., the two kind slags were blended, and ...

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Property analysis for sulfide alloys based on nickel ...

2010-5-13  Alloys of nickel sulfide are analyzed with different additions of cobalt and nickel. The effect of iron and cobalt content on the nature of phase distribution in nickel alloys is studied. Microstructural analysis is provided for the alloys obtained, the dependence of crystal lattice parameter for the pentlandite phase on the content of cobalt and iron in the alloy is plotted, and the ...

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ROASTING OF SULFIDE MINERALS - Wiley Online Library

2017-8-22  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 redu-cing agents, carbon and hydrogen, because the free energy change for the ...

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Copper-Nickel Ore Processing - 911 Metallurgist

2019-11-7  Copper-Nickel Ore Processing. A nickel-copper sulphide concentrate was treated in a pilot plant at Warren Spring Laboratory during 1961, by a hydrometallurgical roast-leach-solvent extraction process devised to cleanly separate the metal values,

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Processing of Nickel Laterite Ores on the Rise

Traditionally, nickel has been processed from sulfide ores in an approach similar to copper processing, in which the ore is upgraded to concentrates and then smelted. As sulfide ore resources dwindle, however, processing of lateritic nickel ores is becoming of greater necessity, with many recognizing nickel laterite ores as the future of the ...

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Extractive metallurgy of nickel [SubsTech]

2012-5-31  Extraction of nickel from sulfide oresis carried out by the following process: Crushing and grinding the ore in order to free the gangue from the nickel sulfide mineral. Concentrating – separation of the nickel sulfide mineral from the gangue. This operation is conducted in a flotation chamber where the ground ore mixed with water is treated ...

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Extraction and Refining of the Platinum Metals

bottom layer of nickel matte is tapped intermittently. By careful control of temperature and sulphur content a nickel matte can be obtained containing little copper and all the platinum metals, whereas any gold will have followed the copper sulphide into the “tops” layer. Casting the enrichd nickel matte into pigs. These are then crushed ...

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牟文宁(项目博导)-研究生分院

2021-9-8  Synchronous extractions of nickel, copper, and cobalt by selective chlorinating roasting and water leaching to low-grade nickel-copper matte[J]. Separation and Purification Technology, 2018, 195 149-162. 9. Fuhui Cui, Wenning Mu*, Shuai Wang, Qian Xu

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Copper matte - slag reaction sequences and separation ...

2019-2-21  sulfide from the matte phase, increasing copper content (matte grade) as well as forming more slag in the processing vessel. As the slag is formed, the matte will start to coagulate by surface forces, once its droplet size reaches a high enough value, and settle through the slag layer due to

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COBALT PROCESSING DEVELOPMENTS K G Fisher

2011-7-5  3.3 Nickel Sulphides Nickel sulphide deposits have historically been processed by flotation, followed by smelting to produce a PGM-bearing nickel matte which is shipped to specialist refineries using hydrometallurgical processes to recover the nickel, copper, PGMs and cobalt. There are many such refinery processes including:

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Property analysis for sulfide alloys based on nickel ...

2010-5-13  Alloys of nickel sulfide are analyzed with different additions of cobalt and nickel. The effect of iron and cobalt content on the nature of phase distribution in nickel alloys is studied. Microstructural analysis is provided for the alloys obtained, the dependence of crystal lattice parameter for the pentlandite phase on the content of cobalt and iron in the alloy is plotted, and the ...

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ROASTING OF SULFIDE MINERALS - Wiley Online Library

2017-8-22  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 redu-cing agents, carbon and hydrogen, because the free energy change for the ...

More

Copper-Nickel Ore Processing - 911 Metallurgist

2019-11-7  Copper-Nickel Ore Processing. A nickel-copper sulphide concentrate was treated in a pilot plant at Warren Spring Laboratory during 1961, by a hydrometallurgical roast-leach-solvent extraction process devised to cleanly separate the metal values,

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Recovery of Fe, Ni, Co, and Cu from Nickel Converter Slag ...

2018-12-18  When low-grade nickel matte is blown into a converter to produce high-grade nickel matte, a large amount of slag is generated, which contains many valuable elements, such as Ni, Co, and Cu. 1) Generally, nickel converter slag is diluted in an electric dilution furnace by adding coal and pyrite, then the slag is discharged from the upper outlet of the furnace, and the matte is discharged from ...

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Nickel Sulfide Versus Laterite : The Hard Sustainability ...

2009-9-22  nickel. Given that many major nickel companies report annually on their sustainability performance, such as Eramet, Inco (now Vale Inco), WMC Resources (now BHP Billiton), Norilsk Nickel, there is data available to examine in detail the differences in the environmental costs of

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Extraction and Refining of the Platinum Metals Johnson ...

2021-11-15  Here pure nickel cathodes are produced, while the platinum metals accumulate in the anode residues and are removed for the separation and refining of the individual metals. As in the copper refinery, the cells are constructed of rubber-lined

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牟文宁(项目博导)-研究生分院

2021-9-8  Synchronous extractions of nickel, copper, and cobalt by selective chlorinating roasting and water leaching to low-grade nickel-copper matte[J]. Separation and Purification Technology, 2018, 195 149-162. 9. Fuhui Cui, Wenning Mu*, Shuai Wang, Qian Xu

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Extractive metallurgy of nickel, cobalt and platinum

2012-11-30  Production of Nickel Concentratesfrom Sulfide Ores 159 15. Productionof Nickel Concentratefrom Ground Sulfide Ore j 171 16. Separation of Chalcopyritefrom Pentlandite by Flotation 191 17. Smeltingof Nickel Sulfide Concentratesby Roasting and Electric FurnaceSmelting 199 18. Flash Smeltingof Nickel Sulfide Concentrates 215 19. Converting-Final ...

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In the extraction of copper, the copper matte is a mixture of:

The chemical formula of copper matte is Cu 2. . S+FeS. It is a combination of copper sulphide and iron sulphide. It is a phase in which extracted metal is converted into crude metal which is a final product. 80−70% of copper matte is used 80−95%. 5−17% metallic copper, Fe−Co alloy etc are used.

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nickel ore by gravity concentration Agriculture Information

2007-11-14  Separation. tion characteristics. For the pre-concentration tests seven ores from various nickel-copper operations at .... gravity of separation are also shown. Considering the... of the present-day nickel sulfide ores renders them ... ores is through the production of nickel matte after ..... by gravity concentration followed by flotation of

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