How can I seperate copper from nickel? - ResearchGate

Then wait until the matte cools down, during which time, particles of copper sulfide, nickel sulfide, and a metallic fraction will be formed. ... dissolve the alloy by some methods like acid leaching and obtain a solution containing copper and nickel ions, then copper and nickel could readily be separated by solvent extraction.

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.

A New Process for Cobalt – Nickel Separation - Teck

May 25, 2010 ... 3 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.

Separating the Platinum Group Metals by Liquid-Liquid Extraction

copper-nickel sulphide matte, and hydro- metallurgical concentration. 3. Final refining to produce the individual platinum group metals. This article concentrates on the last stage, the final refining stage, of this overall process. Current refining processes are based on complex selective precipitation techniques, and these are...

Autoclave Leaching of Copper Nickel Matte - 911 Metallurgist

May 14, 2017 ... The steps utilized to extract nickel and copper from sulfide ores usually involve flotation, smelting, and leaching. To aid in the separation of nickel and copper, the leaching step is usually conducted in several stages. Presently, considerable attention has been given to a two-stage leaching process that has...

nickel and cobalt ores: flotation - 911 Metallurgist

unsuitable for either direct smelting or hydrometal- lurgical extraction, thus requiring beneficiation. The usual method of nickel extraction from sulfide ores is through the production of nickel matte after enriching the nickel content of the ore. This is com- monly carried out by magnetic separation, flotation, or a combination of...

Copper extraction - Wikipedia

Methods have evolved and vary with country depending on the ore source, local environmental regulations, and other factors. As in all mining operations, the ore must usually be beneficiated (concentrated). The processing techniques depend on the nature of the ore. If the ore is primarily sulfide copper minerals (such as...

2.1 Hydrometallurgy

2.6 Previous investigation on nickel, copper and cobalt sulphide leachinig. 2:7 Moss bauer spectroscopy ... where dissolution (leaching), separation, concentration and reduction to the metal is carried out at near .... ore, concentrate or matte is brought into contact with an active chemical solution known as a leach solution...

Process for recovering platinum group metals from ores also ...

Aug 22, 1978 ... A process is described for the separation of platinum group metals (PGM) from ores also containing iron, nickel and copper as sulfides. The minerals in the ore are first concentrated by flotation and the ore concentrate is melted in an electric furnace to form a matte containing at least 95% of the precious...

Nickel processing | Britannica.com

Sulfide deposits are usually mined by underground techniques in a manner similar to copper, although some deposits have been mined using open pits in the early ... Nickel requires higher smelting temperatures (in the range of 1,350 °C [2,460 °F]) in order to produce an artificial nickel-iron sulfide known as matte, which...

Nickel Metal | Properties, History, Production & Uses - The Balance

Oct 9, 2017 ... A look at the properties, characteristics, history, production, and applications of nickel -- a strong, lustrous, silvery-white metal.

Copper Mining and Extraction Sulfide Ores

This KS3 education resource looks at copper mining, extraction and pyroprocessing of sulfide ores. ... this is not the same as the percentage of copper in the ore as that also contains unwanted silicates and other minerals, called gangue, that will have to be separated. .... Stage 5: Conversion of matte to copper blister.

Atmospheric oxidative and non-oxidative leaching of Ni-Cu matte by ...

The aim was to achieve maximum copper and nickel recovery by investigating the mechanisms of leaching, as well as identifying the effect of temperature, and ... Agitation leaching in batch vessels operated under atmospheric or high pressure has been widely used commercially for processing Ni, Cu, and Co sulphide...

4.14 Leaching of nickel matte - Helda

Marja Riekkola-Vanhanen. Finnish expert report on best available techniques in nickel production. The Finnish Environment. 317. FINNISH ENVIRONMENT ...... fluxed for removal as silicate slag, leaving a high grade nickel copper sulphide matte. In several modern operations the roasting step has been eliminated, and the.

The Smelting of Copper-Nickel Concentrates in an Electric ... - Mintek

May 2, 2011 ... Copper-nickel-sulphide ores mined in the Rustenburg district ... content in the converter slag by physical and chemical interaction with the furnace bath and to provide adequate time for the optimum separation of matte and slag. ... smelting of copper-nickel concentrates in a 19.5 MVA furnace with six in-line...

Untitled

of metals and then some methods employed for refining impure metals. ... Smelting is a process for the production of a metal or a metal-rich phase such as matte. Generally, it refers to reduction of a metal oxide to metal, carbon being ..... For copper and nickel, only the iron sulphide impurity is oxidised partly and the.

Nickel and nickel compounds - IARC Monographs

Nickel sulfide. 16812-54-7. Mononickel monosulfide; nickel monosul-. NiS. +2. (1344-49-6) fide; nickel monosulfide (NiS); nickelous. (amorphous 11113-75-0) sulfide; nickel (II) sulfide; nickel (2 + ) sul- fide; nickel sulfde ...... or 'Bessemtr matte' contains copper, the matte can be separated into nickel subsulfide, copper sulfide...

Selective leaching of nickel from low-sulfur Ni-Cu matte at ...

alternatively, the rejection of aqueous copper is conducted by cementation with addition of reactive nickel or nickel sulphide powder after the liquid−solid separation of leaching pulp[6]. Compared with Ni-Cu matte, low-sulfur Ni-Cu matte contains a large number of Ni alloys. And this shows the potential of aqueous copper...

a fundamental evaluation of the atmospheric pre-leaching section of ...

Nickel-Copper sulphide ores are the most important Platinum Group Metal bearing ores. The South African deposits are ... the PGMs from the nickel-copper ores generally consists of ore concentration by physical techniques, pyrometallurgical ...... viscosity which assists slag/matte separation. In addition, CaO decreases the.

Solvent extraction of copper, nickel and zinc by Cyanex ... - CiteSeerX

Jun 9, 2012 ... Key words: Cyanex 272, solvent extraction, copper, nickel, zinc. INTRODUCTION. Solvent extraction is one of the most versatile methods used for the removal, separation and concentration of metallic species from aqueous media. It is used for the processing of most of the metals in periodic table. For the.

Nickel - British Geological Survey

Nickel. 2 www.mineralsuk.com. Name. Group. Formula. Most common mode of occurrence Example deposits. Pentlandite. Sulphide. (Fe,Ni)9S8. In mafic intrusions or ..... Magnetic separation. Non-magnetic ore. Magnetic ore (pyrrhotite). Froth flotation producing a copper concentrate. Froth flotation. Froth flotation of residual.

Parametric Effects on Leaching Behavior of Nickel-Copper Matte in ...

May 24, 2013 ... Leaching, which is described as the extraction of soluble constituents from a solid by means of a solvent, is an important separation technique in the refining of precious metals from their matte. It is, therefore, important to investigate the extraction behavior of metals from the matte, which is the focus of this...

Hydrochloric Acid-Oxygen Leaching and Metal ... - CDC stacks

Analysis of Duluth gabbro copper-nickel bulk sulfide concentrate •••••••••. Operating data for .... Sulfuric acid leaching of concentrate, matte, or roast- ... from metal extraction operations, such as solvent extraction of Cu with oxime ex- tractants (~). With this technique. 3. >99.9 pct of the Fe reports to the leach residue, and an...

Patents - Process Research Ortech Inc.

4, 2478516, A PROCESS FOR THE RECOVERY OF VALUE METALS FROM BASE METAL SULFIDE ORES. 5, 2467288, A PROCESS FOR ... 9, 2289967, METHODS FOR SEPARATION OF TITANIUM FROM ORE. 10, 2289965, METHOD ... COPPER RECOVERY. 27, 1059768, COPPER-NICKEL SEPARATION PROCESS.

About Platinum - Gold and Silver Mines

Virtually all platinum-group metals are recovered from copper or nickel sulfide minerals, which are concentrated by flotation separation. Smelting of the concentrate produces a matte that is leached of copper and nickel sulfides in an autoclave. The solid leach residue contains 15 to 20 percent platinum-group metals.

A Powder Diffraction Study of Problems in PLATINUM GROUP ...

Base metal refinery matte contained nickel sulphide (Ni3S2), copper sulphide (Cu2S), nickel-copper alloy ... Magnetic separation of the alloy phase was unfeasible due to high bulk and poor separation from Ni3S2. ...... manipulation techniques (such as superimposing, shifting and matching) is often more fruitful. In this study...

Cobalt-Nickel Separation in Hydrometallurgy: a Review*

The separation of cobalt from nickel in aqueous solution has always been a problem for hydrometallurgists. Their adjacent ... in sulphate-based high nickel matte leach processes or those produced in the acid pressure leaching of nickel laterites, very high ... Thus sulphide precipitation has been used com- mercially, for...

THE UTILIZATION OF COPPER-NICKEL TAILING - A Literature Survey

Though several methods exist for the possible recovery of the copper ... sized smelter producing 150,OpO tbnsa of copper-nickel matte per year. l. A smelter of that size ..... separated locations at the base of the Duluth Complex. The graphite-sulfide association may even form somewhat continuous layers. In the southern part.

Emission Estimation Techniques Manual for Nickel Concentrating ...

sulfate. (NH4)2SO4. Washing, filtering. & drying. Briquetting. Sintering. Nickel Briquettes. (+99%). INPUTS. EMISSIONS. Grinding. Leaching. Heating, Thickening. & Filtering. Copper sulfide product. Nickel matte. Ammonia (NH3). Ammonia (NH3). Metals, PM10. PM10, CuS. Flocculants. FeSO4, H2. H2, Ni, (NH4)2SO4. H2S.

Hydromet Technology - Vale.com

​Hydrometallurgy, or “hydromet” for short, is a metal processing technology that uses a chemical process combining water, oxygen or other substances in a pressurized or other vessel to dissolve a metal from its ore, concentrate or an intermediate product (such as matte). The nickel industry worldwide has traditionally...

Nickel - NERC Open Research Archive

Nickel. 2 www.mineralsuk.com. Name. Group. Formula. Most common mode of occurrence Example deposits. Pentlandite. Sulphide. (Fe,Ni)9S8. In mafic intrusions or ..... Magnetic separation. Non-magnetic ore. Magnetic ore (pyrrhotite). Froth flotation producing a copper concentrate. Froth flotation. Froth flotation of residual.

selective dissolution and determination of sulphides in nickel ores ...

SULPHIDES IN NICKEL ORES BY THE BROMINE-METHANOL. METHOD. URHO PENTTINEN, VEIKKO PALOSAARI and TUOMO ... tion methods are reported dealing with the determination of sulphides in the presence of silicates. ..... Korakas, N. (1962) Magnetite formation during copper matte converting. Inst. Min. Met.

Nickel Sulfide Versus Laterite : The Hard ... - User Web Pages

to refining of matte to produce a pure metal. It is common for mines, smelters and refineries to be in different locations, depending on local geographic factors. The processing of sulfide ores in this manner is known as pyrometallurgy, with copper (Cu) either an important by-product or co-product (depending on ore grades).

Lecture 20 Smelting Contents Preamble Matte smelting What ... - nptel

process is called matte smelting and when metal is separated as liquid metal it is called reduction ... Matte smelting. Matte is a molten mixture of sulphides. Of the greatest industrial importance is iron- copper matte which is an intermediate product in the extraction of copper from sulphide ores. ... Next is copper- nickel matte.

The conversion of the refined matte into crude nickel.

The so-called Orford process for separating copper and the nickel, devised by J. L. Thomson, R. M. Thompson, and C. C. Bartlett, in 1893, is practised at the Orford Company's Works, at Constable Hook, New Jersey. The process was described by V. von Ehrenwerth. The process depends on the fact that copper sulphide...

Minerals Engineering International Online - Commodities: Copper ...

Lamya, R.M., and Lorenzen, L., A semi-empirical kinetic model for the atmospheric leaching of a Ni-Cu converter matte in copper sulphate-sulphuric acid solution, Journal of the Southern African IMM, Vol. 109, No. 12, 2009. Bari, M.F., et al, Solvent extraction separation and recovery of copper, nickel and zinc from printed...

Extractive Metallurgy of Nickel, Cobalt and Platinum Group Metals ...

Principles and Methods of Upgrading Laterites. 3.6. ... Nickel Sulfide Ores. 13.2. Extraction of Nickel and Cobalt from Sulfide Ores. 13.3. Hydrometallurgical Alternatives to Matte Smelting. 13.4. Voisey's Bay .... Separation of the Platinum-Group Metals from Base Metal Sulfides, and the Refining of Nickel, Copper and Cobalt.

Oxygen Pyrometallurgy at Copper Cliff - TMS

Dry sulfide concentrates and flux were injected into the preheated unit using 99.5% O2 cylinder oxygen. After months of trial and error, batch runs reached rates of up to 3 t/d, with matte grades and metal recoveries at least equal to conventional copper and nickel reverberatory practice, and off-gas analyzing up to 98% SO2.

Chemical Enrichment of Nickel Sulfide

The availability of polymetallic ores is getting leaner in grade and is larger but inferior in volumes than in the past, making the extraction of copper, nickel and other non-ferrous metals metallurgically more difficult to produce. The standard technologies, including enrichment and concentration, do not provide methods for...

TENORM: Copper Mining and Production Wastes | Radiation ...

Uranium, which may be co-located with copper ore, may also be recovered as a side stream, if economical. ... Converting: Finally, matte copper is converted into a copper-rich slag, which is then returned to the leaching process and separated from “blister copper," which is sent to...

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