nickel sulfide copper

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Nickel sulfide and copper sulfide nanocrystal synthesis and ...

Nickel sulfide and copper sulfide nanocrystals were synthesized by adding elemental sulfur to either dichlorobenzene-solvated (copper sulfide) or oleylamine-solvated metal(II) precursors (nickel sulfide) at relatively high temperature to produce the metal sulfide. Nickel sulfide nanocrystals are cubic Ni(3)S(4) (polydymite) with irregular ...

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Potential for New Nickel-Copper Sulfide Deposits in the …

Scientists from the U.S. Geological Survey are evaluating the potential for undiscovered sulfide deposits containing varying amounts of nickel, copper, platinum-group metals, and cobalt in the Lake Superior region as part of an ongoing effort to assess the mineral potential of …

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The Equilibrium Relations of Nickel Sulfide with …

nickel and copper, since the economic recovery of both of these useful metals, from their ores, involves the formation of a sulfide at some stage of the operations. In this work the binary systems Ni3S2-Cu2S and Ni3s2-Na2~ have been studied. These two systems, together with the binary Cu 2 S-Na 2 S form the basis for the "Orford" or "Bottoms

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Interfacial and Vacancies Engineering of Copper Nickel Sulfide …

Rational design and construction of highly efficient nonprecious electrocatalysts for oxygen reduction and alcohols oxidation reactions (ORR, AOR) are extremely vital for the development of direct oxidation alkaline fuel cells, metal-air batteries, and water electrolysis system involved hydrogen and value-added organic products generation, but they remain a …

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The Equilibrium Relations of Nickel Sulfide with Copper and …

charcoal, nickel sulfide,and nickel oxide, waS then used as a cover fol'the next chal'ge. When quantities of from 20 to 30 grams of fused nickel sulfide wele obtained in this manner they wele charged into graphite crucibles and remelt-ed under boz'axglass to cleanse the material of oxides.,and the resulting nickel sulfide waS obtained aE a ...

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Sulfide copper and nickel mining should never be …

First, the sulfide minerals of the Duluth Complex are significantly different from the low sulfur iron ores of the Mesabi Iron Range. The resulting waste dumps, tailings ponds, and abandoned mines...

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Nickel vanadium sulfide grown on nickel copper ... - ScienceDirect

Nickel vanadium sulfide grown on nickel copper phosphide Dendrites/Cu fibers for fabrication of all-solid-state wire-type micro-supercapacitors. ... A highly electronic conductive cobalt nickel sulphide dendrite/quasi-spherical nanocomposite for a supercapacitor electrode with ultrahigh areal specific capacitance. J. Power Sources, 295 ...

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Smelting of Nickel-Copper and Nickel Sulfide - BaoJi Yuan Da Metal …

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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Value addition of copper sulphide from nickel refining: Process ...

Article. Value addition of copper sulphide from nickel refining: Process modelling and simulation. September 2022; Minerals Engineering 187(1–4):107772

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One-pot synthesis of copper-nickel sulfide nanowires for overall …

Herein, one dimensional copper-nickel sulfide nanowires (NWs) were, for the first time, synthesized by using an accurate one-pot multi-step wet chemistry strategy. The obtained copper-nickel sulfide NW electrocatalysts exhibit superb performance for both the hydrogen evolution reaction and oxygen ev …

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Nickel sulfide and copper sulfide nanocrystal synthesis …

Nickel sulfide and copper sulfide nanocrystals were synthesized by adding elemental sulfur to either dichlorobenzene-solvated (copper sulfide) or oleylamine-solvated metal(II) precursors (nickel sulfide) at relatively high temperature to produce the metal sulfide. Nickel sulfide nanocrystals are cubic Ni3S4 (polydymite) with irregular prismatic ...

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Extraction of Copper and Nickel from Low-Grade Nickel Sulfide …

Low-temperature roasting, selective decomposition and water-leaching were used to extract nickel and copper from low-grade nickel sulfide ore with highly alkaline gangue. The effects of variable factors, such as the dosage of roasting additives, the ore particle size, roasting time and roasting temperature, selective decomposition temperature and leaching …

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Nickel-Copper Sulfide Mineralization in the Ntaka Hill Ultramafic ...

The Ntaka Hill Ni-Cu deposit in Tanzania lies within the Mozambique belt, a complex, long-lived Neoproterozoic suture zone that formed during the amalgamation of Gondwana. The deposit is hosted within the moderately deformed Ntaka Ultramafic Complex, which was emplaced at ~660 Ma, around 20 m.y. before the East African orogeny.

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The bioleaching of nickel-copper sulfides - ScienceDirect

The bioleaching of nickel-copper sulfides H.R.Watling https://doi.org/10.1016/j.hydromet.2007.11.012 Get rights and content 1. Introduction The demand for nickel is growing worldwide, driven by the world stainless steel market which consumes 67% of primary nickel.

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One-pot synthesis of copper-nickel sulfide nanowires for …

Herein, one dimensional copper-nickel sulfide nanowires (NWs) were, for the first time, synthesized by using an accurate one-pot multi-step wet chemistry strategy. The obtained copper-nickel sulfide NW electrocatalysts exhibit superb performance for both the hydrogen evolution reaction and oxygen ev …

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Behavior of Nickel and Copper Sulfides and Their Mixtures in …

The behavior of nickel sulfide (Ni 3 S 2 ), copper sulfide (Cu 2 S), and their mixture (Ni 3 S 2 : Cu 2 S = 1 : 1) is studied under the leaching conditions in sulfuric acid solutions. The effects of the acid concentration, the temperature, and the leaching time on the dissolution kinetics and the phase compositions of the leaching residues of ...

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Flotation of Nickel-Copper Sulphide Ore: Optimisation of …

The required mass of nickel-copper sulphide ore material ground to 70% passing 75 µm was weighed and placed in the flotation cell. This was followed by the addition of distilled water t o about

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Nickel-Copper Sulfide Mineralization in the Ntaka Hill Ultramafic ...

Nickel-Copper Sulfide Mineralization in the Ntaka Hill Ultramafic Complex, Nachingwea Region, Tanzania ... The Ntaka Ultramafic Complex preserves an arrested stage of the amalgamation of small sulfide-bearing sill-sediment complex intrusions into larger convecting magma chambers, forming one end of a process continuum including Kevitsa (Finland ...

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Utilization of Copper Nickel Sulfide Mine Tailings for CO2 ...

Enhancing nickel sulfide production from hitherto non-recoverable resources could help increase battery supply. This work shows that a copper nickel sulfide flotation mine tailing in Minnesota could be used for directly accelerated mineral carbonation and concurrent nickel sulfidization.

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Bravo Intercepts High-Grade Nickel/Copper Massive Sulphide ...

The high-grade intercept of 11.04m grading 2.04% nickel and 1.23% copper occurs in massive and semi-massive sulphides – a style of mineralization not previously observed at Luanga, increasing ...

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The bioleaching of nickel-copper sulfides - ScienceDirect

Nickel-copper sulfide ores from Jinchuan mine in China contain pentlandite, pyrrhotite and chalcopyrite as the major sulfide minerals with serpentine and olivine as gangue minerals (Wang and Zhao, 1993). Bioleaching is one of the technologies being investigated to process the ore because it is difficult to make a high-grade Ni-Cu sulfide ...

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Nickel (-Copper) Sulfide Deposits | SpringerLink

Nickel is one of the most important ferro-alloy metals and its major use today, accounting for about half of the world's total production, is for making nickel steels and nickel cast irons. It is also used for many other alloys, especially with copper (Monel metal) and chromium (stainless steel). Nickel imparts to its alloys toughness ...

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Nickel Sulfide and Copper Sulfide Nanocrystal Synthesis and ...

Furthermore, a remarkable near-infrared-driven photocatalytic H2 evolution (0.32 μmol h⁻¹ g⁻¹, λ > 800 nm) was achieved due to the hole transfer from copper-nickel sulfide to …

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Mafic Layered Intrusions -Copper/Nickel Massive Sulfide

Copper nickel sulfide massive sulfides deposits are usually associated with large mafic intrusives many of these are layered. The general rule is the bigger the intrusion the better you need the large intrusions to provide enough metal content to be concentrated into a worthwhile deposit. Copper nickel massive sulfide accumulate as puddles on ...

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Nickel (-Copper) Sulfide Deposits | SpringerLink

It is also used for many other alloys, especially with copper (Monel metal) and chromium (stainless steel). Nickel imparts to its alloys toughness, strength, and anti-corrosion qualities; nickel steels and alloys are preferred for moving and wearing parts of many types of machinery. Other important uses of nickel include electroplating and coinage.

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Moho Resources enhances nickel-copper sulphide potential at …

16 Moho Resources Ltd (ASX:MOH) has identified coincident nickel and copper anomalies, confirming the potential for nickel sulphide prospectivity at Dukes Prospect within the Silver Swan North ...

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Effect of copper/nickel ratio on the efficiency of biobeneficiation …

The nickel leaching rate was significantly higher than that of copper, although the copper content in all concentrates was higher than the nickel content, with a copper/nickel ratio (k) of 1.15–4.1. This pattern was the basis for the biobeneficiation of bulk sulfide concentrates.

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Value addition of copper sulphide from nickel refining: Process ...

Request PDF | Value addition of copper sulphide from nickel refining: Process modelling and simulation | The aim of the study was to develop a process option for …

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Nickel sulfide and copper sulfide nanocrystal synthesis and ...

Nickel sulfide and copper sulfide nanocrystals were synthesized by adding elemental sulfur to either dichlorobenzene-solvated (copper sulfide) or oleylamine-solvated metal(II) precursors (nickel sulfide) at relatively high temperature to produce the metal sulfide. Nickel sulfide nanocrystals are cubic Ni3S4 (polydymite) with irregular prismatic ...

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Bimetallic copper nickel sulfide electrocatalyst by one step …

In this study, we have employed a one-step chemical bath deposition (CBD) route to synthesis bimetallic copper nickel sulfide (CuNiS) electrocatalyst. We have accomplished a superior OER electrocatalytic activity with a lower overpotential of 337 mV at 10 mA/cm 2 current density and a small Tafel slope of 43 mV/dec.