nickel matte leaching

CA2265391A1 - Method for leaching nickel from nickel

nickel matte leaching copper nickel matte Prior art date 1998-03-16 Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Granted Application number CA002265391A Other languages French (fr) Other versions ...

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US3293027A - Method of leaching high grade nickel

Method of leaching high grade nickel matte Download PDF Info ... Prior art keywords leach stage arsenic nickel solution Prior art date 1964-07-20 Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)

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(PDF) ATMOSPHERIC LEACHING OF MATTE AT THE PORT

The leaching behaviour of nickel-copper matte in an acidic-copper sulphate solution during the repulping stage at Impala Platinum Refineries has been studied. The base metal recovery process ...

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Refining of Nickel Copper Cobalt Mattes by Pressure ...

Jun 05, 2020  The leaching of this matte was investigated in a series of laboratory tests, followed by a systematic study of operating conditions and controls in a continuous pilot plant campaign extending over a three month period. ... or from acid leaching. If the nickel content is less than the cobalt content, separation of the two metals prior to ...

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nickel processing - Extraction and refining Britannica

Various processes are used to treat nickel matte. One process is the ammonia pressure leach, in which nickel is recovered from solution using hydrogen reduction, and the sulfur is recovered as ammonium sulfate for use as fertilizer.In another, the matte may be roasted to produce high-grade nickel oxides; these are subjected to a pressure leach, and the solution is electro- and carbonyl refined.

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Extraction of valuable metals from low nickel matte by ...

Oct 01, 2019  Recently, recovery of Ni, Cu, and Co from low nickel matte has been studied via hydrometallurgical processes such as atmospheric pressure acid leaching, ammonia leaching, oxygen pressure acid leaching and oxidative leaching [9,10]. Among these processes, only the oxygen pressure acid leaching method could achieve a high recovery of metals.

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Tsingshan starts producing EV battery raw material nickel ...

1 天前  Making matte from stainless steel raw material nickel pig iron (NPI) and then nickel sulphate provides an alternative route to battery-grade nickel to the high-pressure acid leach (HPAL) process ...

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Nickel Matte Sulphate Leaching Process - Metso Outotec

The Outotec Nickel Matte Sulphate Leaching Process offers a proven processing method for various nickel containing raw materials. Outotec's industry leading sulphate-based pressure leaching is the key to the process to guarantee high recoveries of nickel, cobalt and precious metals.

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Outotec’s Innovative Nickel Matte Leach Process E MJ

Although the nickel market has registered only modest growth lately due to unfavorable economic conditions, process equipment supplier Outotec noted that analysts expect an upturn in the future. Outotec, in fact, said it has constantly been developing new, sustainable, and economically viable nickel processing methods—and its nickel matte chloride leaching process is designed to leach matte ...

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Method for leaching nickel from nickel matte - Oyj, Outokumpu

Mar 12, 1999  A method of leaching nickel from a sulfidic nickel-copper matte containing nickel, copper, and iron wherein said matte is pressure leached with copper sulfate at a temperature above the ambient temperature of said matte feed up to about 160° C. to produce a slurry containing a nickel sulfate bearing solution and a precipitate of digenite which ...

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Leaching of Rapidly Cooled Copper–Nickel Converter Mattes ...

Dec 30, 2020  Converter matte is an intermediate commercial product of the pyrometallurgical processing of copper–nickel sulfide ores at copper–nickel enterprises [1, 2].After flotation separation into copper and nickel concentrates, slowly cooled and well crystallized converter mattes are subjected to traditional industrial processing [].Upon leaching nickel is known to pass to a solution during the ...

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Sulfuric Acid Leaching for Low Nickel Matte Under ...

This research focuses on leaching low nickel matteLow nickel matte through sulfuric acidSulfuric Acid under atmospheric pressure, in which the Ni/Fe/Co enter into solution, noble elements and Cu2S ...

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nickel processing - Extraction and refining Britannica

Various processes are used to treat nickel matte. One process is the ammonia pressure leach, in which nickel is recovered from solution using hydrogen reduction, and the sulfur is recovered as ammonium sulfate for use as fertilizer.In another, the matte may be roasted to produce high-grade nickel oxides; these are subjected to a pressure leach, and the solution is electro- and carbonyl refined.

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ACID LEACHING PROCESS FOR TREATING HIGH GRADE NICKEL ...

Nickel and copper values are separately recovered from copper-nickel-sulphide matte by means of a multi-stage acid leach process. The matte is treated in a first leaching stage in which the acid to acid-reactive metals molar ratio and leaching time are controlled to selectively extract the bulk of the nickel values while the copper values remain in the leach residue.

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Tsingshan starts producing EV battery raw material nickel ...

1 天前  Making matte from stainless steel raw material nickel pig iron (NPI) and then nickel sulphate provides an alternative route to battery-grade nickel to the high-pressure acid leach (HPAL) process ...

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Efficient and selective recovery of Ni, Cu, and Co from ...

Mar 09, 2017  Low-nickel matte was intensively characterized, and Ni, Cu, and Co were determined to exist mainly as (Fe,Ni)9S8 and FeNi3, Cu5FeS4, and (Fe,Ni)9S8 and Fe3O4 (in isomorphic form), respectively. The efficient and selective extraction of Ni, Cu, and Co from the low-nickel matte in an (NH4)2S2O8/NH3H2O solution system was studied. The effects of (NH4)2S2O8 and NH3H2O

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A matter of class in the nickel market Article ING Think

16 小时前  A matter of class in the nickel market. Author. Wenyu Yao. The primary nickel market could swing back to surplus in 2022, but a structural deficit in the Class 1 market may remain sticky. This, compounded with low exchange inventories, suggests that elevated prices may be here to

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methods of processing nickel

nickel processing - Extraction and refining Britannica. One process is the ammonia pressure leach, in which nickel is recovered from solution using hydrogen reduction, and the sulfur is recovered as ammonium sulfate for use as fertilizer. In another, the matte may be roasted to produce high-grade nickel oxides; More

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Nickel: smelting, producing-Metalpedia

Nickel matte with a 70% nickel grade, procured from mines and smelters that we have a stake in, and mixed sulfide with a 60% nickel grade produced in Coral Bay, using the HPAL (High Pressure Acid Leach) process is used as raw material. Production Process of Electrolytic Nickel

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Copper Residues - Reach Copper Consortium

Residue, nickel matte leaching is defined as: Product obtained by leaching Nickel matte with chlorine or sulphuric acid. It is composed primarily of copper sulphide and sulphates. The Joint Registration dossier was successfully submitted to ECHA on 24th September 2010.

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China's Tsingshan starts producing EV battery raw material ...

1 天前  Making matte from stainless steel raw material nickel pig iron and then nickel sulphate provides an alternative route to battery-grade nickel to the high-pressure acid leach (HPAL) process also ...

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Nickel Matte Chloride Leaching Process - Metso Outotec

The Nickel Matte Chloride Leaching Process is an environmentally sustainable method for nickel-containing raw materials. Menu Close Industries. Mining Supporting your mining operations, from plant design expertise to equipment, parts and services for

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Sulfuric Acid Leaching for Low Nickel Matte Under ...

This research focuses on leaching low nickel matteLow nickel matte through sulfuric acidSulfuric Acid under atmospheric pressure, in which the Ni/Fe/Co enter into solution, noble elements and Cu2S ...

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Copper Residues - Reach Copper Consortium

Residue, nickel matte leaching is defined as: Product obtained by leaching Nickel matte with chlorine or sulphuric acid. It is composed primarily of copper sulphide and sulphates. The Joint Registration dossier was successfully submitted to ECHA on 24th September 2010.

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US Patent for Selective two stage leaching of nickel from ...

A finely-ground nickel-copper matte is leached using an acid at a minimum temperature of approx. 80gree. C. and under oxidizing conditions in order to produce a nickel sulfate solution and a nickel-cooper sulfide residue, which is separated from the solution and thereafter the nickel-copper sulfide residue is leached using acid in an autoclave at a minimum temperature of 110gree.

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

A common method for nickel leaching from the matte is by using ammonia under high pressure, producing a nickel-bearing solution. 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.

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Electronic Structure and Oxidation Mechanism of Nickel ...

Aug 18, 2020  The structural and electronic properties of Cu 1.96 S and Ni 3 S 2 present in nickel–copper converter matte and sulfides such as CuS, Ni 7 S 6, NiS, Ni 3 S 4, and NiS 2, likely existing as intermediates in the oxidative leaching of the matte, were investigated using first-principles calculations.Analyses of the total and partial density of states (DOS), with electron density and

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Environmental Guidelines for Nickel Smelting and Refining

Various processes are used to refine nickel matte. Fluid bed roasting and a chlorine-hydrogen reduction will produce high grade nickel oxides (95%+ nickel). Vapor processes, ... emissions are associated with acid leaching processes. Highly toxic nickel carbonyl is a contaminant of concern in the carbonyl refining process. Various process off ...

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methods of processing nickel

nickel processing - Extraction and refining Britannica. One process is the ammonia pressure leach, in which nickel is recovered from solution using hydrogen reduction, and the sulfur is recovered as ammonium sulfate for use as fertilizer. In another, the matte may be roasted to produce high-grade nickel oxides; More

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Intelligen, Inc.

Copper-Nickel (Cu-Ni) Matte Leaching. Copper-nickel matte is a mixture of metal sulfides generated during the pyrometallurgical smelting of copper. Although the exact composition of this material depends on the upstream raw materials and furnace conditions, smelting polymetallic minerals results in a matte that is typically rich in copper ...

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A matter of class in the nickel market Article ING Think

16 小时前  A matter of class in the nickel market. Author. Wenyu Yao. The primary nickel market could swing back to surplus in 2022, but a structural deficit in the Class 1 market may remain sticky. This, compounded with low exchange inventories, suggests that elevated prices may be here to

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Huayou's Indonesia nickel JV starts trial production ...

Dec 01, 2021  On a metal content basis, PT Huayue, on the island of Sulawesi, is designed to produce 60,000 tonnes of nickel and 7,800 tonnes of cobalt per year

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China's Tsingshan starts producing EV battery raw material ...

1 天前  Making matte from stainless steel raw material nickel pig iron and then nickel sulphate provides an alternative route to battery-grade nickel to the high-pressure acid leach (HPAL) process also ...

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This chloride leaching process recycles resources ...

Aug 01, 2014  Developed since the 1980s, originally for Cu recovery and since extended to Ni, Zn and Au, the Outotec Nickel Matte Chloride Leaching process is a more resource-efficient and environmentally sustainable option for Ni refining compared to existing leaching processes, says Kaarlo Haavanlammi, technology manager — Nickel Hydrometallurgy.

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tsingshan: China's Tsingshan starts producing EV battery ...

1 天前  Making matte from stainless steel raw material nickel pig iron (NPI) and then nickel sulphate provides an alternative route to battery-grade nickel to the high-pressure acid leach (HPAL) process ...

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