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Metal recovery from nickel sulfide flotation tailings using leaching was investigated. • The addition of ferric chloride resulted in significant improvement on sulfuric acid leaching …
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Abstract—The flotation of impregnated copper-nickel ores is studied using humate agents as depressors, which are obtained from oxidized brown coal by extraction with alkaline …
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In this study, the robust Taguchi experimental design method was used to determine the optimum conditions for the flotation of nickel, copper and cobalt from a nickel-copper sulphide ore....
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A key issue that remains for nickel flotation is the poor response at sizes below about 10 μm. Liberated pentlandite is known to float poorly at such sizes, even in relatively …
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Cobalt is a valuable by-product obtained from processing of nickel–copper sulphide ores. From the nickel and cobalt assays of flotation products, cumulative recoveries of …
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nickel sulfide flotation concentrates at high temperature and elevated pressure, i.e. pressure leaching. A distinction is made among the different pressure leaching processes ... ing of a …
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Sulphide ores are the major source of valuable metals such as copper, lead, zinc, and nickel, as well as gold, silver, and platinum group metals (PGMs), and flotation is the …
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The article describes flotation technology for copper-nickel material—original ore and processing waste (metallurgical slags). With a view to improve processing performance, stream flotation …
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The main aim of flotation procedure is separating nickel and copper, flotation procedure is a physicochemical reaction procedure, under the action of reagent, copper …
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The maximum copper and nickel recoveries in the 7 cm impeller tests were observed at 93.1% and 72.5%, respectively. However, a significant decrease in the flotation …
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The latter may be problematic when intergrown inclusions of pentlandite or nickel in solid solution are present (Rao, 2000). Rejecting hexagonal pyrrhotite may be achieved by (i) …
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The process developed in USSR for the treatment of copper-nickel matte involves selective flotation of Cu 2 S and subjecting the flotation middling to a two-stage aqueous oxidation …
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Conventional Nickel and Copper Flotation underpin the Metallurgical Processes in the 2024 PEA. Over the life of mine, the Samapleu-Grata project will produce an annual …
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The binary copolymer N-MAAA can not only improve nickel-copper flotation indicators but also reduce the magnesium oxide content in the second-stage concentrate from …
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This work demonstrates, for the first time, the use of surfactin, an environmentally benign biosurfactant, for the flotation of metal ions (Cu2+, Ni2+, and Co2+). Surfactin, at a …
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In anticipation of future demands, a comprehensive understanding of the chemical and mineralogical characteristics of nickel-bearing minerals is a prerequisite to devising …
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The rougher flotation and closed-circuit flotation tests of copper-nickel sulfide ore (1.0 kg) were performed on XFD-63 type flotation machines of different capacities (3.0 L, 1.0 L, …
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6.2 Copper Ores 22 6.3 Low Grade Copper-Gold Ores 23 6.4 Lead-Zinc Ores 24 6.5 Copper-Zinc Ores 24 6.6 Copper-Lead-Zinc Ores 25 6.7 Nickel Ores 26 Planning and Analysis of Flotation …
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ABSTRACT. 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 produce …
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Among the beneficiation methods of copper-nickel sulfide ores, flotation is the most important one, and magnetic separation and gravity separation are often used as auxiliary beneficiation methods.
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Researchers have tried to improve nickel laterite flotation recovery by using a number of feed preparation techniques. ... ALTA Nickel/Cobalt/Copper Conference, 24-27 …
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The broken bonds on copper oxide mineral surfaces, such as malachite, are mainly ionic and have strong hydrophilicity, which makes it difficult for xanthate collectors to be used …
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Nickel sulfide ores contain nickel as pentlandite, which can be efficiently separated and concentrated using flotation methods. This conventional beneficiation process reduces costs …
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Addressed to the researchers and plant metallurgists who employ flotation reagents, this text examines the theoretical aspects of flotation reagents as well as the practical aspects of using …
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The process method is to extract copper and nickel minerals by mixing and flotation from the ore, and then separately select copper concentrate (containing low nickel) ore and nickel (containing low copper) concentrate from …
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In nickel-copper sulfide ore processing, serpentine is a common gangue mineral encountered in complex sulfide ores and can easily cause entrainment during flotation [].Large …
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After that, the pulp was transferred to a flotation tank with a capacity of 0.5 L to recover copper and nickel by flotation tests. Then, sulfuric acid, copper sulphate, isobutyl …
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Nickel, copper, cobalt, iron, ... Sulfide ores are crushed and ground in order to liberate nickel minerals by selective flotation, in place of, or in conjunction with magnetic …
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The flotation of copper-nickel ore can be divided into four types: direct preferential flotation, mixed flotation without separation, and mixed flotation followed by separation …
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Overall, copper had higher flotation rates in comparison to nickel at both 25 ℃ and 60 ℃. On comparing the flotation rates for copper, generally the flotation rates were higher at …
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parameters for the flotation of base metals from a nickel-copper sulphide ore. 2. Materials and Methods 2. 1. Materials The nickel-copper sulphide ore used in this study was supplied by …
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Copper oxide ore is characterized by low ore grade, fine embedded particle size and severe slime coating, which is a difficult ore to be processed in China [1].Malachite [Cu 2 …
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In the flotation process of low-grade nickel sulfide ore, ... The extraction of nickel, copper and iron gradually increases with the increase of leaching time, and remains constant …
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