nickel ore reduction process

How Sherritt Refines Nickel

Oct 01, 2010 · process. Cobalt Recovery. The solution from the high and low cobalt leaches are transferred to the nickel-cobalt separation plant. Here cobalt is removed and is sent to the cobalt reduction plant. Cobalt powder is recovered, using high pressure hydrogen reduction in an autoclave, much like the process described later for nickel.

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Nickel: smelting, producing-Metalpedia

The resultant carbon monoxide is re-circulated and reused through the process. The highly pure nickel produced by this process is known as "carbonyl nickel". Source: Nickel-Wikipedia; Hydrometallurgy of Nickel; The high temperature (~250°C) acid pressure leaching of nickeliferous laterite ore has been practised commercially since the late 1950's.

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Selective Reduction of High Alumina-Lateritic Nickel Ore ...

The analysis of reduced nickel ore is performed by the Atomic Absorption Spectroscopy, X-Ray Diffraction, and Secondary Electron Microscopy. The optimal process resulted from the reduction of nickel ore with 10 wt. % anthracite at the temperature of 1050°C for 120 minutes which resulted in 0.84% nickel in concentrate.

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PDF International Journal of Mineral Processing

Mechanism of sodium sulfate in promoting selective reduction of nickel laterite ore during reduction roasting process Man Jiang a,b, Tichang Sun a,⁎, Zhiguo Liu a, Jue Kou a, Na Liu a, Shiyuan Zhang a a School of Civil and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, P. R. China b School of Resources and Environmental Engineering, Shandong ...

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Reduction Smelting Low Ferronickel from Pre-concentrated ...

11/1/2016 · The pre-concentrated nickel-iron ore is made from a nickel laterite ore imported abroad under the conditions as follows: pre-reducing at 1,100 °C for 80 min by 2 % coal-bearing with a total carbon to iron mass ratio of 1.5, then grinding the pre-reduced pellets up to 91.80 % passing 0.043 mm, and magnetically separating the ground product in Davis Tube at 0.17 T magnetic field intensity. 79.50 % of …

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SMELTING OF NICKEL OXIDE ORES TO PRODUCE FERRONICKEL ...

We claim 1. A process for producing ferronickel from nickel oxide ores which comprises: 2. The process of claim 1 wherein the nickel ore is chosen from the group consisting of laterites and serpentines and wherein said ore is calcined at a temperature sufficiently high to remove most of the chemically combined water contained in the ore prior to smelting.

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(PDF) Reduction process of low-grade nickel laterite ...

Ferro-nickel granules were produced from nickel laterite ore/coal composite briquettes by high-temperature direct reduction. The effects of roasting temperature, roasting time, C/O (carbon/oxygen ...

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Two-stage reduction for the preparation of ferronickel alloy ...

the chemical composition of the nickel laterite ore, reductant, and flux used in this study. 2.2. Experimental setup The pre-reduction process was typically carried out in an 8-kW muffle furnace equipped with a silicon carbide heat-ing element and a Pt–10wt%Rh/Pt thermocouple for moni-toring the temperature. The pre-reduction reaction was con-

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Increasing nickel from nickel slag with Na2SO4 additives ...

9/3/2020 · Adzhani, R. Hidayanti, A. Maksum, and S. Permana, “ The Influence of Palm Kernell Shell Mass Ratio as a Reducing Agent in The Lateritic Nickel Ore Carbothermic Reduction Process,” IOP …

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Nickel production Harjavalta | Production process

The nickel raw solution coming from the leaching plant is cleaned from impurities, such as cobalt, at the reduction plant’s extraction and sulphide precipitation departments. The nickel raw solution coming from the leaching plant to cobalt extraction is cooled and washed with kerosene to prevent foreign organic substances from entering the ...

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Production of ferronickel from nickel laterites in a DC arc ...

Because fine ore particles are readily treated in a DC-arc furnace, units such as fluidized beds (which require materials of small particle size) can be used for the pre-treatment stage of the process. A process has been developed whereby nickel laterites of a wide compositional range can be smelted in a DC-arc furnace, to produce ferronickel.

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Carrying nickel ore: The world's most dangerous cargo ...

Nickel ore is a cargo that may liquefy if the Moisture Content (MC) exceeds the Transportable Moisture Limit (TML). The point at which the cargo can begin to act like a liquid is when the Flow Moisture Point (FMP) is reached: a theoretical figure set at 90% of the FMP to create a 10% safety margin.

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Reduction process of low-grade nickel laterite agglomerates ...

The agglomeration process is a good alternative to work lateritic nickel ores, considering that reduction is more effective when fine particles are reduced through a diffusion process whereby the reducing agent passes through the particles ore.

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The Caron Process :: Total Materia Article

Production of FeNi from high iron nickel ores

the smelting furnace where all the reduction of iron and nickel oxides took place. The furnace operation was fairly smooth, but slag boil did occur mainly due to incomplete calcination of the ore in the rotary kiln'. As time went by and the process was adopted in more plants, more experience with different ores and reductants was obtained both

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Production Process of Ferronickel - Miss Rifka

Calcination-reduction: elimination of the remainder of the free ore moisture and its crystalline water, preheating of the ore, and reduction of a substantial portion of the nickel and a controlled portion of the iron; Electric furnace smelting: completion of reduction of the nickel separation of the product ferronickel

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Selective Reduction of Laterite Nickel Ore

Unlike sulphide nickel ore processing, laterite nickel ore processing requires higher processing energy through smelting. Therefore, a novel method to process laterite nickel ore using lower energy is needed. The novel method is done via direct reduction and magnetic separation.

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Selective Reduction of High Alumina-Lateritic Nickel Ore (0.5 ...

The analysis of reduced nickel ore is performed by the Atomic Absorption Spectroscopy, X-Ray Diffraction, and Secondary Electron Microscopy. The optimal process resulted from the reduction of nickel ore with 10 wt. % anthracite at the temperature of 1050°C for 120 minutes which resulted in 0.84% nickel in concentrate.

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Anaconda Nickel Ltd Nickel and Cobalt Mine - Mining ...

It is based on the mining and processing of lateritic ore for the production of up to 40,000t/y of nickel and 2,500t/y of cobalt briquettes with a design cash cost of $2.00–2.40/lb of nickel, making it one of the world’s largest and lowest-cost nickel producers. Stage 1 of the project was commissioned in 1999 at a cost of A$1,030m.

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Enhanced methods for nickel recovery from low-grade ores and ...

All nickel ores have relatively low nickel content, the classification is as follows: high-grade nickel ore has Ni content greater than 1.8%, middle-grade nickel ore has Ni content between 1.3-1.7%, low-grade nickel ore has Ni content between 0.6-1.2%. Nickel is continuously mined, even at these low percentages of ores, because it is in high ...

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