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As for the action mechanism of sodium chloride in the roasting process of nickel sulfide ore, the study of Aleksandrov P.V. et al. showed that sodium chloride would consume sulfur dioxide generated in the roasting process and promote the rapid oxidation of nickel sulfide at low temperature; at the same time, thermodynamic study showed …
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In GREET 2022, we considered two sources of Class I nickel production: sulfide ores (accounting for 60% of the supply) and laterite ores (40% of the supply), based on (Mudd, 2010; Mudd and Jowitt ...
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The CESL Nickel process for sulphides commences with an oxidizing pressure leach in a chloride-sulphate media to put nickel and cobalt into solution. This is followed by a …
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Copper and cobalt can be found on nickel laterite ores, and cobalt can be found also on copper ores, and many contaminants such as iron, aluminum, and magnesium are associated with these ores. In hydrometallurgical process, a purification step is necessary after leaching due to the presence of these impurities. Chelating …
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Question: Does a reaction occur when aqueous solutions of nickel(II) sulfate and ammonium sulfide are combined? If a reaction does occur, write the net ionic equation. Does a reaction occur when aqueous solutions of …
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In the MnSO 4 electrolyte system, the optimal parameters for the removal of Zn, Ni, and Co through ammonium sulfide precipitation are as follows: temperature = 45 °C, pH = 5.60, 40 % ammonium sulfide dosage, 5 min reaction time, and 650 rpm stirring speed. The sulfide rates for Zn, Ni, and Co are 99.07 %, 89.30 %, and 87.70 %, …
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The filtered solution is collected in the filtrate tank and diluted to target nickel concentration of ~ 75 g/l. The ammonium concentration is ~7 g/l. From the filtrate tank PLS is pumped to impurity SX. With high nickel and ammonium concentration there is possibility of formation of nickel-ammonium double salt.
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On modifying the surface of three-dimensional nickel- in various concentrations of an ammonium sulfate i.e. 0.02 M, 0.05 M, 0.1 M, and 0.5 M, different nanostructures of nickel oxy-sulfide (Ni x O y S 1-y) can be obtained which are further envisaged in electrochemical supercapacitor (ES) and electrochemical catalysis (EC) …
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2.1. Ammoniacal lixiviants. The ability of ammonia (NH 3) to selectively dissolve Ni, Cu, and Co from sulfidic materials (concentrate, matte, and mixed sulfide precipitate) underpins the Sherritt-Gordon process, an ammoniacal pressure oxidation process that was described in Part I of this review and that has seen commercial …
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most salts that contain the hydroxide (OH −) and sulfide (S 2−) anions: but not: salts of the alkali metals (group 1), the heavier alkaline earths (Ca 2 +, Sr 2 +, and Ba 2+ in group 2), and the NH 4 + ion. Rule 6: most carbonate (CO 3 2−) and phosphate (PO 4 3−) salts: but not: salts of the alkali metals or the NH 4 + ion. Rule 7
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The intermediate product—nickel sulfide, nickel carbonate, ... Stearyl trimethyl ammonium chloride. BNC: Basic nickel carbonate. Mt: Million tonnes. MT: Metric ton. ... Journal of Mining and Metallurgy, Section B: Metallurgy, no. 2, 52 (2016) 127-134. Article Google Scholar
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Nickel sulfide ores are subjected to mineral beneficiation to reject sulfidic and non-sulfidic gangue and produce a nickel concentrate grading from 5% to 25% Ni …
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nickel, copper, and iron were studied, and the results show that,when the roasting temperature is 850 C, the roasting time is 1.5 h, the mass ratio of ... roasting with sulfuric acid,16 sodium ammonium,17 ammonium sulfate,18 or its mixture with sodium sulfate,19,20 and chlorinated roasting with sodium
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Methods for inhibiting the NH4NO3 decomposition are considered, which are designed to increase its stability during storage and under conditions of use in the …
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Nickel and cobalt are essential strategic metals that are widely employed in alloy materials, battery materials, and other industries because of their beneficial properties [1], [2]. Nickel resources are broadly classified as nickel sulfide ore and laterite ore, with nickel sulfide ore accounting for only about 30% of total nickel resources.
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Firstly, thermodynamic analysis confirmed the possibilities of nickel and cobalt leaching from ammonia solution. Then the impacts of leaching agent …
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Ammonium (NH 4 +) is an essential metabolite of all life forms, and its activation greatly affects ecosystem functioning and global biogeochemical cycles 1,2.Until recently, the activation of ...
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Nickel Recovery and Techniques of Mining Nickel from Lateritic Deposits. ... This mine also can produce 5,600 tonnes of refined cobalt and 210,000 tonnes of ammonium sulfate. ... Nickel sulfide deposits contain high levels of magnesium silicate gangue minerals (MgO) and can be difficult to process with conventional flotation and …
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With the vigorously growing demand of the steel industry, corrosion resistance alloys, clean energy industries, and a variety of engineered infrastructure or technology, high-grade nickel ores are being exhausted gradually in the world. This review outlines metallurgical processes for nickel production from various nickel sulfide ores resources, particularly …
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Semantic Scholar extracted view of "Synchronous extraction of nickel and copper from a mixed oxide-sulfide nickel ore in a low-temperature roasting system" by W. Mu et al. ... Journal of Mining Science. ... we propose a novel temperature-programmed ammonium chloride (NH4Cl) roasting–water-leaching process to extract nickel (Ni), cobalt (Co), ...
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A nickel sulfide concentrate was leached with an ammoniacal solution (refer to Table 1) at ambient pressure for 168 hours, resulting in 17% of the Ni being leached. …
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Effectively strengthening the surface sulfidation is essential for recovering hemimorphite by froth flotation. In this work, inductively coupled plasma optical emission spectrometer (ICP-OES) measurements, Visual MINTEQ calculation, X-ray photoelectron spectroscopy (XPS) analysis, time of flight secondary ion mass spectrometry (ToF …
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Because the ammonium ion has a 1+ charge and the sulfide ion has a 2− charge, we need two ammonium ions to balance the charge on a single sulfide ion. Enclosing the formula for the ammonium ion in parentheses, we have (NH 4) 2 S. The compound's name is ammonium sulfide.
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Metallic sulfide mining (aka hard rock mining) is the practice of extracting metals such as nickel, gold and copper from a sulfide-rich ore body. Sulfides are a geologic byproduct of mining in this area, and by exposing sulfides to the air and water in our atmosphere, sulfuric acid can be created — threatening to poison the nearby water ...
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The possibility of applying a combined concentration and metallurgical method for processing low-grade and refractory copper–nickel ores was considered. The resulting rougher and scavenger flotation concentrate contained 2.07% nickel and 0.881% copper at a recovery of 85.44% and 89.91%, respectively. The concentrate was then …
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Nickel plays a critical role in the mining industry. However, the presence of nickel in the primary source of sulfide minerals is decreasing. Focus has since turned to laterite ore, which contains up to 80% Ni metal. The purpose of this study was to optimize nickel leaching using sulfuric acid and conduct a kinetic analysis to discover the …
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The mining of mineral resources has gradually increased to keep up with societal development, and some of them are approaching depletion. ... Li et al. [29] investigated the selective extraction of nickel, copper, and cobalt from nickel sulfide concentrate by ammonium sulfate roasting-water leaching. The results showed that the …
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Ammonium Sulfide In Nickel Mining - cz-eu.eu. Ammonium Sulfide In Nickel Mining. Material Safety Data Sheet - ScienceLab. p. 1 0 2 0 He alth Fire Re activity Pe rs onal Prote ction 2 0 0 E Material Safety Data ...
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Sulfation roasting, a common activation technique, is a potential method for cleaner production of nickel from complex low-grade ores. In this study, nickel oxide–sulfide mixed ore concentrate was roasted with the …
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To obtain the appropriate conditions for eliminating Fe 3+ from NiSO 4 solution, the digestion solution of the clinker was used as raw material, which was obtained from roasting the nickel oxide ore with (NH 4) 2 SO 4.The ammonium jarosite was successfully synthesized from the solution with analytic grade NH 4 HCO 3.The effects …
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