CN105887136A
The invention relates to a method for separating iron and nickel from laterite nickel ore pickle liquor. The method comprises the steps that finely-ground laterite nickel ore is leached through sulfuric acid, solid-liquid separation is carried out after leaching is finished, and leaching liquor containing nickel and iron is obtained; a complexing agent is added into the leaching liquor ...
Recovery of high-quality iron phosphate from acid-leaching …
Recovery of high-quality iron phosphate from acid-leaching tailings of laterite nickel ore. Author links open overlay panel Yanchao Qiao ... was synthesized to realize the direct extraction of nickel from sulfuric acid leachate of laterite ore. The separation behaviors of nickel over other impurities (Co, Mn, Mg, Al, Ca, Fe, and Zn) were ...
Separation and Recovery of Iron and Nickel from Low …
The low-grade nickel laterite ore used in this study was successfully upgraded through selective reduction by industrialized rotary kilns followed by magnetic separation. The results indicated that both iron metallization extent and nickel metallization extent showed obvious linear correlation. In addition, rational roasting temperature and prolonged grinding time could …
How is nickel extracted from its ores
Nickel is extracted from ores using froth flotation for sulfides, yielding 15-20% nickel matte, and high-pressure acid leaching for laterites. Nickel is a tough, shiny metal commonly used in alloys and plating, and it is most …
CN105506312A
The invention discloses a method of separating molybdenum and nickel from high-carbon molybdenum-nickel ore. The method includes the following steps: crushing, material blending, pelletizing, roasting, acid leaching, regulation of pH value, filtering separation, molybdenum extraction and nickel extraction. In the method, the raw material, high-carbon molybdenum …
The Guide to Nickel Processing Methods | Mining Pedia
The trapping agent promotes the separation of nickel minerals from other minerals, while the frothing agent helps to generate air bubbles that attach to nickel ore particles and float them to the surface of the slurry, thus separating them from the vein minerals.
Preparation of Nickel–Iron Concentrate from Low-Grade Laterite Nickel
The results showed that nickel–iron concentrate with a nickel grade of 7.32%, nickel recovery of 81.84%, iron grade of 78.74%, and iron recovery of 69.78% were obtained under the conditions of a ...
Nickel processing
Nickel processing - Extraction, Refining, Alloying: The extraction of nickel from ore follows much the same route as copper, and indeed, in a number of cases, similar processes and equipment are used. The major differences in equipment are the use of higher-temperature refractories and the increased cooling required to accommodate the higher operating temperatures in nickel …
Efficient enrichment of nickel and iron in laterite nickel ore …
The process of deep reduction and magnetic separation was proposed to enrich nickel and iron from laterite nickel ores. Results show that nickel–iron concentrates with nickel grade of 6.96%, nickel recovery of 94.06%, iron grade of 34.74%, and iron recovery of 80.44% could be obtained after magnetic separation under the conditions of reduction temperature of …
Roasting and Leaching Behavior of Nickel Laterite Ore
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. The sulfation-roasting …
Preparation of Nickel–Iron Concentrate from Low-Grade Laterite Nickel
In this paper, the process of solid-state metalized reduction and magnetic separation was investigated for preparation of nickel–iron concentrate from a low-grade laterite nickel ore. The effects of reduction temperature, reduction time, amount of dosages, and magnetic field strength on grades and recoveries of nickel and iron were studied. The results showed …
Recovery of cobalt and nickel from magnesium-rich sulfate …
In this paper, magnesium oxide slurry was employed to precipitate and separate nickel and cobalt from magnesium with the precipitation method. ... leaching are generally applicable to treat the low-grade laterite nickel ore (Guo et al., 2009, Kaya and Topkaya, 2011, McDonald and Whittington, 2008, Wang et al., 2012, Zhu et al., 2010). Acid ...
Nickel Formation and Manufacturing Process
For sulfide nickel ores, the process involves mining and crushing the ore, followed by concentration using froth flotation to separate the nickel-bearing minerals. The concentrated ore is then smelted to produce a nickel-iron sulfide matte, which undergoes further processing to remove impurities, resulting in higher-purity nickel.
Nickel Processing Flow: Comprehensive Guide
Flotation Cells: To separate nickel sulfide minerals using reagents and air bubbles. Leach Tanks: For dissolving nickel oxides in laterite ores. Thickeners: To concentrate the slurry by removing excess water.
CN111411225B
The invention relates to a method for leaching and separating nickel from laterite-nickel ore, which comprises the following steps: selecting laterite nickel ore, and grinding the laterite nickel ore; adding the nickel-containing fine ore into an ammonium bisulfate solution, and mixing to prepare ore pulp; heating and reacting the ore pulp under the stirring condition, and carrying out first ...
Methods for Separating Alloys: A Comprehensive Guide
Electrolysis can be energy-intensive, with power consumption varying by process. For example, separating nickel and cobalt typically requires about 1.3 kW-hr per pound of nickel. While cost-effective and relatively safe under controlled conditions, electrolysis can impact the environment. ... Ore Preparation: First, the ore or alloy is crushed ...
CN113023701A
The invention discloses a method and application for separating ferronickel from a laterite-nickel ore leaching solution and preparing ferric phosphate, wherein the method comprises the steps of adjusting the pH value of the laterite-nickel ore leaching solution to 0.5-1.5, dropwise adding a compound sulfide precipitator for reaction, adding a coagulant, filtering to obtain a nickel sulfide ...
(PDF) Enriching metallic nickel from laterite-nickel ore via …
The low-grade laterite-nickel ore was treated by thermal carbon reduction-magnetic separation process to enrich the metallic nickel with activated carbon powder as reductant.
US3672873A
A process for separating nickel from cobalt contained in cobaltiferous and nickeliferous oxide ore which comprises leaching the ore to produce an aqueous solution containing nickel and cobalt; treating the aqueous solution to precipitate reducible compounds of nickel and cobalt; separating the reducible compounds from the aqueous solution ...
Characterization of fluidized reduction roasting of nickel laterite ore
Fluidized reduction roasting is an efficient metallurgical technique. However, its application to nickel laterite ore has rarely been reported. In this paper, the effects of reduction temperature, reduction time, CO concentration, and material particle size on the roasting characteristics of ferronickel fluidization reduction were investigated. Combined with X-ray …
A New Process for Cobalt Nickel Separation
Separation of cobalt from nickel is almost invariably required at some stage to obtain maximum payment for these metals, but the separation is frequently complicated by the presence of …
Separation and recovery of iron and nickel from low …
The effect of operating variables on the recovery and separation of nickel and iron from low-grade laterite ore was initially investigated during microwave ... of the laterite nickel ore is 1.71wt ...
CN115747477A
The invention provides a method for separating nickel concentrate from laterite-nickel ore. The method comprises the following steps: step S1, drying the laterite-nickel ore to obtain dried laterite-nickel ore; step S2, mixing the dried laterite-nickel ore, gypsum and a reducing agent, and adding the mixture into a rotary kiln for roasting to obtain vulcanized roasted sand; and S3, …
Ferronickel enrichment by fine particle reduction and …
Ferronickel enrichment and extraction from nickel laterite ore were studied through reduction and magnetic separation. Reduction experiments were performed using hydrogen and carbon monoxide as reductants at different temperatures (700–1000°C). Magnetic separation of the reduced products was conducted using a SLon-100 cycle pulsating magnetic separator (1.2 …
Separation of Copper-Nickel by Flotation and …
In conventional processing of mixed sulfide ores of copper and nickel, the separation of copper from nickel begins in the ore beneficiation plant. Although copper and nickel are mutually soluble in the metallic state, in sulfide …
CN1134856A
The method combines mechanical ore dressing and low-temperature selective reduction to separate nickel and molybdenum from nickel-molybdenum ore. The nickel-molybdenum ore contains about 2 percent of nickel and about 2 percent of molybdenum, and is a well-known refractory mineral. The invention can obtain two furnace charges by the enrichment and …
CN114540613A
The invention relates to a method for separating nickel and cobalt from laterite-nickel ore, comprising the following steps: (1) roasting and leaching laterite-nickel ore in sequence, and then carrying out solid-liquid separation to obtain a leaching solution; (2) sequentially carrying out first extraction and second extraction on the leachate obtained in the step (1) to obtain a second ...
What is ore of nickel?
The main ore of nickel is pentlandite, which is a sulfide mineral containing iron and nickel. Other important nickel ores include garnierite and nickeliferous laterite deposits.
Nickel Ore Production Line
For it is easier to recovery cooper from nickel concentrate. The process has a vital advantage-receive copper concentrate with low grade nickel directly. Nickel ore production lines are …
NICKEL AND COBALT ORES: FLOTATION
enriching the nickel content of the ore. This is com-monly carried out by magnetic separation, Sotation, or a combinationof both after the ore is comminuted to below 200 m in size. The enrichment depends upon the degree of rejection of the other sulRde and non-sulRde gangue. The maximum grade of nickel