copper nickel sulphide matte separation technique

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nickel extraction techniques

Nickel WikipediaEvolution of the annual nickel extraction, ... most sulfide ores have been processed using pyrometallurgical techniques to produce a matte for further refining.Nickel: smelting,&nickel extraction techniques. ... Several methods exist for the separation of cobalt from copper and nickel. They depend on the concentration of cobalt ...

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Separation Of Copper Sulphide And Nickel Sulphide Matte In ...

Copper sulphate can be used to separate Copper from Nickel in a sulphide ore or Copper from Fe in Cu -Fe sulphide ore. CuSO 4 solution can also be used for removing Pb, Zn, and Fe from copper sulphide ores. In presence of oxidizing agents: Ferric ion: Ferric sulphate or chloride react with metal sulphides liberating elemental sulphur, e.g.

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NIOSHTIC-2 Publications Search - 10008298 - Separation of ...

The technique utilizes a two-stage bulk sulfide flotation procedure to obtain a copper concentrate that analyzed 25 percent copper and 0.5 percent nickel, and a nickel concentrate that analyzed 10 percent nickel and about 1 percent copper. As an alternative route, flotation of matte was also investigated.

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The chemistry of the nickel-copper matte leach and its ...

Jun 01, 1992· A mineralogical study of the phases formed during the CuSO 4 H 2 SO 4 O 2 leaching of nickel-copper matte Can. Metall. Q., 26 ( 1987 ), pp. 265 - 276 View Record in Scopus Google Scholar

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Removal of copper from oxidized nickel matte by ...

Jul 01, 1983· In matte dead-roasted at 800 and above this partial separation of copper sulphide led to localized areas of high cop- per concentration in the fully oxidized nickel-oxide product. Despite this, XRD data indicated that all the copper was in solid solution in the nickel oxide (Eric and Timu~in, 1979).

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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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12.3 Primary Copper Smelting

(green feed) ore concentrate produces matte, a molten mixture of copper sulfide (Cu2S), iron sulfide (FeS), and some heavy metals. Converting the matte yields a high-grade "blister" copper, with 98.5 to 99.5 percent copper. Typically, blister copper is then fire-refined in an anode furnace, cast into

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RI8999 PLEASE DO NOT. REMOVE FROM LIBRARY Bureau …

Matte smelting emits S02 and recovers the following, in percent: 96 Cu, 85 Ni, but only 26 Co. Treatment of the slag from matte smelting by crushing, grinding, and sulfide flotation can increase these metal recoveries. Flotation of the matte produced two valuable products, a Cu-rich fraction that contained 90 pct of the Cu

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Extraction and Refining of the Platinum Metals | Johnson ...

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 concrete and 24 cells make up one unit. Internal dimensions of the cells are about 11 ½ × 2 × 2½ feet.

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Adsorption of dextrin onto sulphide minerals and its ...

The major constituents of the Inco matte, chalcocite (Cu2S) and heazlewoodite (Ni3S2), are separated by differential flotation with diphenylguanidine as collector. To select an effective organic depressant, many dextrins were tested and tapioca dextrin 12 was found to have an exceptional affinity towards heazlewoodite surface at a particular pH of the mineral …

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Nickel | BHP

Nickel is a silvery white, naturally occurring metallic element with a light golden tinge. There are two main types of nickel deposits - laterite and sulphide – each requiring a different extraction technique. Stainless steel. Nickel sulphide and laterite ore are used to make nickel metal, predominantly for the production of stainless steel.

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Refining of Nickel Copper Cobalt Mattes by Pressure ...

Jun 05, 2020· Matte of this general composition is encountered more frequently than the others in this series, due to the natural association of nickel and copper sulphide minerals in many parts of the world. Usually, a flotation separation may be made to provide a copper concentrate low in nickel, and the nickel concentrate then contains some copper.

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ELECTROLYSIS OF GRANULATED COPPER-NICKEL MATTE | …

The process is recommended for copper and nickel separation when processing sulfide-metal alloys. Copper content of in the solution during electrolysis …

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Cobalt extraction refers to the techniques used to extract c

Cobalt extraction refers to the techniques used to extract cobalt from its ores and other compound ores. Several methods exist for the separation of cobalt from copper and nickel. They depend on the concentration of cobalt and the exact composition of the used ore. 1. Recovery from copper-cobalt sulfide concentrates.

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Nornickel

Depending on the chemical composition, converter matte may be copper, nickel and copper-nickel matte. ... Matte Separation Area. NOF ... Ores with high sulphide content (over 70%) and the following metal grades: 2–5% for nickel, 2–25% for …

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Column Flotation Development for Copper Scavenging in Inco ...

Jan 01, 1991· Minor amounts of iron, precious metals, and nuisance elements are also present.The matte separation process is, in concept, relatively simple. Following magnetic removal of the metallic alloy from the feed, the flowsheet is designed to float a high grade copper concentrate from the nickel sulphide matrix. A simplified flowsheet of the process ...

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A New Process for Cobalt Nickel Separation

excellent cobalt-nickel separation primary leach liquor by Cyanex 272. However, manganese extraction from the leach liquor along with cobalt could not be avoided, thus increasing the cost of the process. For sulphide ores, there is another alternative; if the ore can be concentrated by flotation, matte smelting is used instead of leaching.

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[PDF] Copper And Nickel Converters Download eBook Full ...

The solidified matte from the converters was treated by the Orford process originally developed by the Orford Copper Company, ... Separation of Copper nickel Mattes from Duluth Gabbro Concentrates by Flotation and Magnetic Methods. ... [ Smelting of Copper - …

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A New Method of MATTE REFINING … by pressure leaching and ...

Jan 12, 2017· Forbes Wilson: The Moa Bay-Port Nickel Project, Mining Engineering, May 1958, p. 563. Google Scholar 7. F. A. Forward: Ammonia Pressure Leach Process for Recovering Nickel, Copper and Cobalt from Sherritt Gordon Nickel Sulphide Concentrate, Trans., Canadian Institute of Mining and Metallurgy, vol. 56, p. 363. 8

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Table of Contents

separation techniques, native platinum and their ferro-alloys are separated. A 25% copper-nickel matte is produced when the sulfide concentrates are smelted in an electric furnace. It is further desulfurized by oxidation in a converting process. This produces a high grade 75-80% copper-nickel matte that contains as much as 2 kg of platinum group

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Smelting of Nickel-Copper and Nickel Sulfide

Sulfide ores are mostly smelted by matte-making. Different pyrometallurgical processes are used to produce low-nickel matte from various nickel sulfide ores. Then low-nickel matte is converted into high matte, i.e. sulfide and copper sulfide alloys. High matte is then refined by different methods in a refinery to produce different nickel products.

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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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Vale | Sudbury Air Quality

This is crushed, ground and separated into metallics, nickel sulphides and copper sulphides by magnetic separation and flotation in the Matte Separation Plant. All of the precious metal bearing metallics and some of the nickel sulphide are sent to the Copper Cliff Refinery. The remaining nickel sulphide is roasted in fluid bed roasters.

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separation of nickel from a nickel ore

Nickel Ore Processing / Highmetals KDS Technologies. The magnetic separation and re-election is usually secondary dressing method. Flotation of sulfide copper-nickel ore, it is often uses copper sulfide flotation...

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Recovery of Nickel, Cobalt and Copper from Industrial ...

Jul 18, 2013· The extraction of Ni, Co and Cu from nickel smelting slags into iron sulphide mattes derived from pyrrhotite was investigated to determine the potential for recovery of these metals from slags. The distribution ratio, L = concentration in matte/concentration in slag, decreased in the order L (Cu) > L (Ni) > L (Co).

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US3909248A - Separation of nickel from copper - Google Patents

Nickel contained in nickeliferous sulfide minerals is separated from cupriferous sulfide minerals and gangue, both of which sulfide minerals are associated with iron sulfides corresponding to the formula FexSx 1 wherein x is an integer greater than 1, by forming an aqueous slurry of the mineral and iron sulfides and heating the slurry under a partial pressure of oxygen of at least 3 ...

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Enhanced methods for nickel recovery from low-grade ores ...

This solution is heated to remove copper, and the use of hydrogen gas under high pressure precipitates nickel metal; remaining nickel in the solution can be precipitated by adding hydrogen sulfide. The process steps of the two methods of magmatic sulfide ores can be found in Figure 4 .

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

Another pyrometallurgical method involves controlled slow cooling of the matte which promotes the formation of discreet particles of nickel sulfide, copper sulfide and a metallic fraction within the slowly cooled matte. These products are then recovered by a combination of crushing, grinding, flotation and magnetic separation.

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5. PRODUCTION, IMPORT/EXPORT, USE, AND DISPOSAL

subsulfide. After physical separation of the copper and nickel sulfides, the nickel is refined electrochemically or by the carbonyl process. The treatment of the matte depends on the end use of the nickel. Alternatively, the sulfide can be roasted to form a nickel oxide sinter that is used directly in steel production.

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Sulfide Precipitation of Nickel and Other Heavy Metals ...

More kinetic studies for cobalt and nickel reaction with sulfide to obtain the possible reaction rate expression. 2. Identification of soluble sulfur species formed during NiS and CoS dissolution. 3. Further studies of the catalytic ef- fects of nickel and copper on metal dissolution. 4.

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The beneficiation process of nickel ore,copper-nickel ...

Sep 24, 2020· Copper-nickel separation technology is divided into two types: copper-nickel mixed concentrate separation and high matte separation technology. Generally, the former is used for copper-nickel minerals with relatively coarse grain size and not closely related to each other, and the latter is used for copper-nickel minerals with fine grain size ...

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sherritt gordon nickel process from sulfide concentrates

Recovery from nickel-cobalt sulfide concentrates (Sherritt process) The Sherritt process is a hydrometallurgical process named for Sherritt Gordon Mines Ltd. ... Inquire Now. Recovery of copper and zinc as sulfides from copper. Sep 20, 1977· A process for recovery of zinc values ... zinc values therefrom as zinc sulfide.

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A century of converter operation in vale inco's ontario ...

And despite replacement of the Orford Process by the 'slow-cool' matte process for improved nickel sulphide, copper sulphide and PGM in metallics …

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