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nickel oxides and concentrates
nickel oxides and concentrates
nickel oxides and concentrates :
Nickel sulphide concentrate processing via low
2019.4.1 We experimentally confirmed that nickel sulphate is the main nickel-containing product of the reaction between nickel sulphide concentrate and sodium
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Roasting of Nickel Concentrates Metallurgical and Materials ...
2010.5.4 The oxidation of three nickel concentrates from two Canadian smelters was studied by thermogravimetric analysis. Concentrate samples were heated to 1223 K (950
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Metals Free Full-Text Sulfation Roasting of
Nickel is a significant strategic metal, and sulfide and oxide ores are the main sources of nickel production around the world. Nickel sulfide
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High-Grade Ferronickel Concentrates Prepared from Laterite Nickel
2023.11.11 Nickel is widely used in industrial processes and plays a crucial role in many applications. However, most of the nickel resource mainly exists as nickel oxide in
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The Effect of Additives on Extraction of Ni, Fe and
2018.7.17 The processes for extracting nickel, iron and cobalt in the presence of additives, as described in Fig. 1, can usually be categorized as reduction roasting, chlorination roasting and water leaching, sulfatization
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Nickel oxide thin films grown by chemical
Nickel oxide has been widely used as hole injection layers (HILs) in organic and quantum dot light-emitting diodes (OLEDs and QLEDs, respectively). This is due to the high work function of nickel oxide, enabling it to inject
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Nickel Extraction from Nickel Sulfide Concentrates by Iron
2021.9.1 The extraction of Ni from Ni sulfide concentrates by iron addition is achieved by the preferential distribution of Ni in the alloy phase at elevated temperatures. The
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Progressive concentration gradient nickel-rich
2019.3.2 Abstract. Nickel-rich layered transition-metal oxides with high reversible capacity are considered the most promising cathode candidates for next-generation LIBs. However, their applications are
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Oxygen-evolution reaction by nickel/nickel oxide interface in
2020.5.29 In this study, we investigate the effect of K 2 FeO 4, as a new and soluble Fe salt at alkaline conditions, on oxygen-evolution reaction (OER) of Ni oxide. Both
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The Direct Leaching of Nickel Sulfide Flotation Concentrates
2022.7.11 2. Laboratory investigations into direct leaching of nickel sulfide concentrates. Laboratory investigations into direct hydrometallurgical processing of nickel sulfide flotation concentrates have been carried out in response to the technical and environmental hurdles presented by the traditional concentrate smelting-matte refining
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Comprehensive Review on Metallurgical Upgradation Processes of Nickel ...
2022.2.11 The land-based resources available for the preparation of nickel mainly include nickel sulfide ore and nickel oxide ore, and the sulfide-oxide ratio in current nickel reserves is believed to be about 4:6. ... Wang et al. [23, 24] proposed a one-step extraction process of nickel from nickel sulfide concentrates by iron addition. The mixture of ...
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Nickel processing - Extraction, Refining, Alloying
Nickel concentrates may be leached with sulfuric acid or ammonia, or they may be dried and smelted in flash and bath processes, as is the case with copper. Nickel requires higher smelting temperatures (in the range of
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Nickel sulphide concentrate processing via low
2019.4.1 The low-temperature calcination of nickel sulphide concentrates with sodium chloride and subsequent hydrometallurgical processing is a promising alternative methods. This study aims to identify the interaction products of sulphide nickel concentrate components with sodium chloride at temperatures of 400–450 °C. ... and oxides. Nickel ...
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A Review of Nickel Pyrometallurgical Operations - Springer
2017.8.27 high in nickel (1.5-3%); the gangue material is rich in MgO and SiD" with a lower iron content (10-30% Fe). Laterite and silicate ores contain large amounts of water as moisture and in hydroxides. Typical composi-tions of nickel oxide ores are given in Reference 11. Nickel extraction from oxide ores follows hy-
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Preconcentration strategies in the processing of nickel
2017.8.15 The results show that spinel nickel ferrite mainly composed of nickel oxide and iron oxide could be completely formed after calcined at 800, 1000 and 900 °C for limonite, saprolite and transition laterite ore, respectively. ... by froth flotation and other techniques. However, the selective and efficient removal of talc from molybdenite ...
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Structure and Properties of the Slags of Continuous
2017.8.25 form during continuous converting of copper nickel containing mattes and concentrates in a Vanyukov fur nace. It should be noted that the viscosity of slag melts with a significant oxidation potential and a high con tent of copper and nickel oxides was investigated in a few works (see [4–8]). The viscosity of a slag melt is one of the properties
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Chemistry of Nickel - Chemistry LibreTexts
The so-called "Mond Process" involves the conversion of nickel oxides to pure nickel metal. The oxide is obtained from nickel ores by a series of treatments including concentration, roasting and smelting of the minerals. In the first step of the process, nickel oxide is reacted with water gas, a mixture of H 2 and CO, at atmospheric pressure ...
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Ferronickel SpringerLink
2023.6.7 Ferronickel. Ferronickel is a ferroalloy consisting of nickel and iron. It is mainly used as a nickel additive for steelmaking, for the production of stainless steel and heat-resistant special steel, as well as low-alloy cast iron and cast steel. The addition of nickel can improve the bending strength and hardness of steel.
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Chapter 26
2012.11.27 manganese ores and concentrates with a manganese content of 20 % or more, calculated on the dry weight. 26.03 2603.00 Copper ores and concentrates. 26.04 2604.00 Nickel ores and concentrates. 26.05 2605.00 Cobalt ores and concentrates. 26.06 2606.00 Aluminium ores and concentrates. 26.07 2607.00 Lead ores and concentrates.
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Solid State Extraction of Nickel from Nickel Sulfide Concentrates
2020.5.5 Among of them, nickel sulfide ore can provide more than 60 % of nickel products for the world (Wang et al., 2020). However, with the large-scale mining of high-grade ore, the ore grade gradually decreases and is replaced by low-grade mixed oxide-sulfide ore (Mu et al., 2018).
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Nickel Extraction from Nickel Sulfide Concentrates by Iron
2021.9.1 The conventional process of nickel extraction from sulfide concentrates involves complex and costly steps, while also generating a considerable amount of sulfur dioxide. The solid-state extraction of nickel from nickel sulfide concentrates by iron addition was proposed as an alternative approach where the nickel was recovered into a
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Flash Smelting of Nickel Sulfide Concentrates Request PDF
2011.12.31 The high-nickel, low-iron matte is further refined to recover valuables [13][14][15]. The Fe-Si-O slag, on the other hand, is mainly comprised of fayalite (Fe2SiO4), some ferric oxide (Fe2O3), and ...
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Solid State Extraction of Nickel from Nickel Sulfide Concentrates
2020.5.5 Pyrometallurgical smelting and refining is the dominant method of extracting Ni from sulfide concentrates [ 14, 15]. Prior to refining, the concentrate is smelted in an oxidizing atmosphere to yield a Ni-rich matte while simultaneously oxidizing the iron to iron oxide; the iron oxide is fluxed with silica to form an iron silicate slag that is ...
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Comprehensive Review on Metallurgical Upgradation Processes of Nickel ...
2022.2.11 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
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Metals Free Full-Text Sulfation Roasting of Nickel Oxide
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 addition of ammonium sulfate under a static air atmosphere, and the roasted products were leached by water, in order to evaluate the
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Nickel Sulfide Concentrate Processing Using Low
2014.10.5 A method is proposed for processing nickel sulfide concentrates based on low-temperature roasting with sodium chloride. In the course of research, the dependence of valuable component extraction on excess sodium chloride and roasting temperature and duration is determined, and also cinder water and sulphuric acid leaching regimes are
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Metal oxide nanoparticles in electrochemical sensing and
2018.7.4 This review (with (318) refs) describes progress made in the design and synthesis of morphologically different metal oxide nanoparticles made from iron, manganese, titanium, copper, zinc, zirconium, cobalt, nickel, tungsten, silver, and vanadium. It also covers respective composites and their function and application in the field of
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An Overview of Nickel Utilization from Laterite Ore
2023.1.19 The nickel and cobalt oxides are reduced to the metallic state, while iron oxides are transformed into magnetite and wüstite (Eqs. 1.19 – 1.22 ). In addition, NH 3 and CO 2 are introduced into the leaching solution to leach the metallic nickel and cobalt in the form of ammoniac complex ion, while iron, magnesium and other impurities remain ...
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The Direct Leaching of Nickel Sulfide Flotation Concentrates
2022.7.13 The iron-to-magnesium ratio in the nickel concentrates destined for smelting is a key parameter that influences smelting temperature and slag viscosity (Mayhew et al. Citation 2013; Senior and Thomas Citation 2005), hence emphasis is placed on the rejection of Mg-bearing gangue during flotation of nickel sulfide ores (Lotter et al.
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Extraction of ferronickel concentrate from laterite nickel ore
2023.10.1 First, nickel oxide is separated from serpentine by thermal decomposition at 700 °C. Then, iron and nickel oxides are metallized and reduced to form ferronickel particles under a high temperature and through the use of a reducing agent. ... The reaction mechanism in the preparation of ferronickel concentrates when using spent cathode
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Roasting and Leaching Behavior of Nickel Laterite Ore
2021.3.29 Abstract Nickel is mostly extracted from sulfide ores, however, laterite ores account for over 60 pct of all nickel resources in the world, and despite its predominance, there is no well-established process to extract nickel from such ores. Nickel in laterites is hosted in many different compounds such as oxides, hydroxides, and silicates minerals.
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Roasting of Nickel Concentrates Metallurgical and Materials ...
2010.5.4 The oxidation of three nickel concentrates from two Canadian smelters was studied by thermogravimetric analysis. Concentrate samples were heated to 1223 K (950 °C) in inert or oxidizing atmospheres to determine the reaction behavior. By recording the mass change as well as the SO2 content in the outlet gas, the oxidation behaviors were
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Nickel Data Sheet - Mineral Commodity Summaries 2020
2020.2.7 Nickel-containing scrap, including nickel content of stainless-steel scrap: Canada, 38%; Mexico, 28%; United Kingdom, 9%; and other, 25%. Tariff: Item Number Normal Trade Relations 12–31–19 Nickel ores and concentrates, nickel content 2604.00.0040 Free. Ferronickel 7202.60.0000 Free. Unwrought nickel, not alloyed
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Mechanism of sodium chloride in promoting reduction
2022.9.12 concentrates, and M is the weight of raw ore, W is the nickel or iron content in the raw ore. Analysis method. Thermogravimetric (TG) and differential scanning calorimetry (DSC) analysis were per -
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HSN Code for Oxide in India - Export Genius
Magnesium oxide: 2614: Titanium ores and concentrates; 261400: Titanium ores and concentrates: 26140031: Rare earth oxides including rutile sand: 2810: Oxides of boron; boric acids; ... Nickel oxide sinters and other intermediate products of nickel metallurgy: 8506: Primary cells and primary batteries; 85063000:
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NICKEL AND NICKEL COMPOUNDS - Chromium, Nickel and
Nickel and nickel compounds were considered by previous IARC Working Groups, in 1972, 1975, 1979, 1982 and 1987 (IARC, 1973, 1976, 1979, 1982, 1987). Since that time, new data have become available, and these are included in the present monograph and have been taken into consideration in the evaluation.
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Separation of nickel from cobalt and manganese in lithium
2022.5.23 This study shows a method by which nickel oxide can be efficiently separated from cobalt and manganese oxides using an oxalic acid-based deep eutectic solvent. The subsequent addition of water to the pregnant solution enables the co-precipitation of cobalt and manganese oxalates. This permits a route to the reformulation
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Enhanced methods for nickel recovery from low-grade ores
2017.9.6 Flash smelting is a common method: dry concentrates are fed into a furnace and heated to a liquid matte and slag. From this step, sulfide matte can be recovered, which contains cobalt, and nickel (about 70%). Iron is recovered in the slag, and sulfur as sulfur dioxide. ... High-grade nickel oxides are produced by fluid-bed roasting and chlorine ...
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Comparison of Leaching of Copper–Nickel Concentrates and
2022.7.12 Abstract The leaching of nonferrous metals from copper–nickel sulfide concentrates and copper–nickel slags with ferric sulfate solution obtained by microbial oxidation of ferrous sulfate was studied. The process was carried out at 80°С, pH 1.15, and 9.8 g/L Fe3+. Most nickel was shown to be leached from the slags within 1.5 h. When
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