processing of nickel ores and concentrates

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  Processes for the Recovery of Bismuth from Ores and …

  2024116 · V. A. Krenev, N. F. Drobot, and S. V. Fomichev. Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninskii pr. 31, Moscow, 119991 Russia email: [email protected] ...

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  Autoclave processing of low grade copper-nickel concentrates

  1995101 · In this work, Chinese mixed oxide-sulfide nickel ores were roasted by ammonium sulfate at low temperatures of 300–500 °C to extract valuable metals directly and synchronously. Some influence factors including roasting temperature, ammonium-to-ore mole ratio, roasting time and particle size of the ore samples were studied in the roasting …

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  Nickel Smelting and Refining

  202378 · sulfide ores. (Nickel sulfide concentrates contain 6–20% nickel and up to 30% sulfur.) SO. 2. releases can be as high as 4 metric tons (t) of sulfur diox-ide per metric ton of nickel produced, before con-trols. Reverberatory furnaces and electric furnaces produce SO. 2. concentrations of 0.5–2.0%, while flash furnaces produce SO. 2 ...

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  Comprehensive Review on Metallurgical Upgradation Processes of Nickel ...

  2022211 · Abstract. 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 …

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  The Direct Leaching of Nickel Sulfide Flotation Concentrates …

  2022713 · Based on the success of the Caron process in treating oxidized Ni ores at the Nicaro nickel plant, Cuba, the process was adapted by Forward, Kudryk, and Samis (Citation 1948) and Queneau, Sproule, and Illis (Citation 1949) to process sulfide ores and concentrates. In both cases, an oxidizing roast stage was required to drive off the sulfur ...

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  (PDF) Refining Approaches in the Platinum Group Metal Processing Value ...

  2018322 · This article will review the processes and value chain. developed to treat ores for PGM recovery, highlighting hydrometallurgical refining approaches. It groups processes according to their ...

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  The Direct Nickel Process | Total Materia

  The Direct Nickel Process DNi is an atmospheric hydrometallurgical processing route designed to treat all types of nickel laterite ores, in a single flow sheet to produce a number of final saleable products. The key to the Process is the use of nitric acid as the leaching agent and the subsequent use of a patented recovery and recycling process ...

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  Behavior of platinum metals during sulfide copper-nickel

  20161130 · Thermodynamic model for assessment of distribution and extraction of nickel, copper and platinoids during copper-nickel raw material processing was developed using the software FactSage 6.3.1 ...

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  Export Restrictions on Minerals and Metals: Indonesia’s …

  2024228 · Nickel is traded and consumed in a variety of forms and products based on chemical composition and stage of processing. In its raw form, nickel is sold and traded as nickel ore and concentrates. Nickel ores are the raw (unprocessed) form of nickel, typically contain 1–4 percent nickel when extracted, and,

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  Combined Flotation Hydrometallurgical Technology for the …

  20201028 · Abstract The possibilities of extracting valuable components and producing selective good-quality concentrates from hard-to-beneficiate crude ores are considered for the disseminated copper–nickel ores from the Norilsk district. The stated aim is achieved by a combined technology including beneficiation and hydrometallurgical …

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