Leaching characteristics of nickel sulfides in aserpentinitic low-grade nickel-copper ore Complex Sulphide Ores Conference, edited by M. J. Jones, 5 - 8 October, 1980 Rome, Italy,20–27. ... T. Robinson, and W. G. Davenport. 2011. Extraction of nickel and cobalt from sulfide ores. In Extractive metallurgy of nickel, cobalt and platinum …
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1. Introduction. Nickel is an important strategic metal produced at over 2 million tonnes annually [1].Approximately 60% of all Ni is consumed in the production of stainless steel [2, 3].Currently, Ni is primarily extracted from two types of ores: laterites and sulfides [[4], [5], [6], [7]].Although sulfide ores account for a smaller fraction of global Ni …
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The topics discussed include smelting laterite concentrates to sulfide matte, extracting nickel and cobalt from sulfide ores, the slow cooling and solidification of converter matte, extracting ...
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The overall process flowchart of nickel extraction from nickel sulfide ores is shown in Fig. ... reported a process for synchronous extraction of nickel and copper from a mixed oxide-sulfide nickel ore in a low-temperature roasting system. In this process, sodium sulfate was used as an additive for improving the extraction of nickel …
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Production of Ni/Co from sulphide ores has its challenges that are fundamentally related to the mineralogy of this type of ores. 2.1 Mineralogy of Nickel-Copper Sulphide Ores. Studies on the geology and mineralogy of domestic nickel-copper sulphide ore deposits are reported in several sources in detail [16,17,18,19]. Although …
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The method used to extract copper from its ores depends on the nature of the ore. Sulfide ores such as chalcopyrite ((CuFeS_2)) are converted to copper by a different method from silicate, carbonate or sulfate ores. Chalcopyrite (also known as copper pyrites) and similar sulfide ores are the commonest ores of copper. The ores …
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Extractive metallurgy is the art of extracting metals from their ores and refining them. This book deals with the processes, operations, technologies and processing routes of extractive metallurgy, i.e. the (production) extraction of metals from ores, concentrates (enriched ores), scraps and other sources and their refining to liquid
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In book: Extractive Metallurgy of Nickel, Cobalt and Platinum Group Metals (pp.377-391) Authors: ... African cobalt-rich copper sulfide ore (CRCS) is an important copper-cobalt resource. The CRCS ...
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Currently, approximately 60% nickel is extracted from nickel sulfide ore, but in recent years, high-grade nickel sulfide ore is gradually exhausted due to the …
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Use of the method of direct ore processing [7, 8] is limited for production and economic reasons.A version of rational use of pyrite ores may combined processing with oxidized nickel ores [].Reduction sulfiding melting of the latter using the product of partial oxidation firing of copper ore as a sulfiding agent makes it possible to obtain copper …
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Mineral Processing and Extractive Metallurgy Review List of Issues Volume 40, Issue 3 ... Nickel extraction from primary resources such as ores/minerals …
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DOI: 10.1016/c541-8 Corpus ID: 107025043; Extractive Metallurgy of Nickel, Cobalt and Platinum Group Metals @inproceedings{Crundwell2011ExtractiveMO, title={Extractive Metallurgy of Nickel, Cobalt and Platinum Group Metals}, author={F. K. Crundwell and Michael S. Moats and …
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competitive costs and at the same time recover other metals such as cobalt and copper. Nickel's extractive metallurgy is the most complex since there are two major types of ores, laterites, and sulfides, which make this paper a valuable guide by providing an ... Nickel extraction, laterite ores, sulfide ores, Ni secondary sources, leaching ...
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Table 1 Percentage nickel in nickel sulfide ores . Full size table. Table 2 Table for nickel laterite ore mineral types ... A Review, Mineral Processing and Extractive Metallurgy Review, no. 6, 21 (2008) 527–599. Google ... Extraction of nickel from lateritic ores at atmospheric pressure with agitation leaching, Hydrometallurgy, no. 1-2, 97 ...
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Extractive metallurgy Metal sulfide flotation concentrates can be treated in a number of ways. ... Biochemical processes are being developed for the treatment of copper, nickel and cobalt sulfide ores and are expected to become the major method for recovery of these metals in the future. The aim is to eventually replace smelting processes that ...
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At the same time, hydrometallurgical techniques are often considered as alternative approach for treatment of low-grade sulfide ores and substandard concentrates containing copper, nickel, and PGM ...
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This book describes and explains the methods by which three related ores and recyclables are made into high purity metals and chemicals, for materials processing. It focuses on present day processes and future developments rather than historical processes. Nickel, cobalt and platinum group metals are key elements for materials …
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However, a long stockpiling time may cause severe surface oxidation of the complex sulfide ores, particularly the complex Cu–Zn sulfide ores containing secondary copper minerals, which resulted in loss of Cu–Zn selectivity and copper recovery.
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If this ore is treated with the existing nickel sulfide ore smelting process, a large number of valuable metals are lost in the flotation process,4 coupled with high …
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A basic principle of many processes for extracting copper and nickel from sulphide ores is to overlay the molten ore or matte with a lime–silica–iron oxide slag …
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This review outlines metallurgical processes for nickel production from various nickel sulfide ores resources, particularly focusing on recent developments in metallurgical …
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Crushing and grinding the ore in order to free the gangue from the nickel sulfide mineral. Concentrating – separation of the nickel sulfide mineral from the gangue. This operation is conducted in a flotation chamber where the ground ore mixed with water is treated by air bubbles which move upward and cause flotation of the mineral particles ...
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The extraction of nickel (Ni) from sulfide resources commences with flotation to produce a concentrate which is then smelted to produce a nickel-enriched phase called matte, and further refined to ...
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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 …
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Nickel is an important alloy element, about 65 pct of nickel in the world and 85 pct in China are used to smelt stainless steel. [1,2] China has become the largest nickel consumer in the world due to the continuous increase of nickel demand in recent decades.[2,3] Nickel sulfide ore is one of the main resources for nickel production, …
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The extraction of Ni from sulfide ores is much simpler relative to laterites and is dominated by pyrometallurgical processing. This typically involves comminution and flotation to produce a nickel ...
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Platinum group metals are extracted from sulfide ores. Certain amount of nickel, cobalt and platinum group metals are produced from recycled end of used scrap. ...
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Purchase Extractive Metallurgy of Nickel, Cobalt and Platinum Group Metals - 1st Edition. Print Book & Print Book & E-Book. ISBN 9780080968094, 9780080974781, 9780080968100 ... Exploiting the Cobalt–Copper Sulfide Ore Layer 30.5. Summary 31. Platinum-Group Metals, Production, Use and Extraction Costs 31.1. Uses of the …
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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 …
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Extractive metallurgy. Mineral processing. 1. ... The sulphide minerals in nickel ores are easily floatable without a collector in acid pulp due to oxidation and, therefore, their separation is not possible at low pH. ... Effect of calcium and thiosulfate ions on flotation selectivity of nickel–copper ores. Minerals Engineering, 15 (1) (2002 ...
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1.. IntroductionLean ores and tailings can account for up to three-quarters of the total reserves of certain metals (Wen and Ruan, 2002).There is an urgent need for practical and economical methods of metal extraction from common secondary resources (Gbor et al., 2000, Han and Meng, 2003).Few investigations on the metal extraction …
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gations into the leaching of nickel sulfide flotation concen-trates at ambient pressure are reviewed in Part III of this series. The processing of whole nickel sulfide ores is not the subject of this review and bioleaching of whole Ni and Cu- Ni sulfide ores has been previously covered by Watling (2008).
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The extraction of nickel and cobalt from the reduced ore was conducted by selective chlorination in the temperature range of 300–500°C using aluminum chloride hexahydrate as the chlorination ...
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2. Nickel sulfide deposits. Nickel sulfide deposits are found on most continents, however major deposits are found in Russia, Australia, Canada, and Southern Africa (Hoatson, Jaireth, and Jaques Citation 2006).Canada and Russia possess the largest resources of nickel sulfides, followed by Australia and South Africa; however, Australia …
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The effect of microwave treatment on the grinding and flotation performance of a typical copper–nickel sulfide ore was evaluated, based on the determination of its microwave absorption capability, grinding and flotation indexes such as crack percentage, mineral liberation degree, particle size distribution, relative work index (RWI), metal …
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In 2020-2025, the plant plans to build an open pit at the Yoshlik-I deposit, as well as a new copper-processing plant (MOF) with a processing capacity of 60 million tons of ore per year. According to the calculations of the plant, it is planned to build a factory of such capacity for the first time in the CIS.
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Complex sulphide ores represent considerable reserves and resources in base non ferrous metals, in precious metals, and in sulphur. Some of their essential characteristics, which allow a general presentation of the complexity of their processing options, from the ore to the pure metals or finished products, have already been presented by the author (1,2).
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University of Johannesburg, Department of Metallurgy Faculty of Engineering & Built Environment, South Africa, PO Box 526, Wits 2050, South Africa ... 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 to about
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