of nickel is produced from sultidic ores, the production of nickel from lateritic ores is increasing and may overtake nickel production from sulfidic ores [I]. Lateritic ores are formed by prolonged weathering of ultramafic rocks. Typical mineralogical profile of nickel laterite ore bodies is as follows [2, 3]: 1.
The mined ores (1–4% Ni) are processed to upgrade the metal content with 10–20% Ni in the concentrates. Thus, the preconcentration of nickel ores is an important unit operation to upgrade the nickel before commencing any extraction steps. Ni is mined from sulfide ores, Nickel ferrolaterite and serpentine.
Explore the extraction processes of nickel from laterite ore, including acid leaching, smelting, and the Caron process. Discover the Direct Nickel Process DNi, an atmospheric hydrometallurgical processing route that uses nitric acid …
The energy use for nickel is calculated for the extraction of the ore, the enrichment of the ore from raw rock to ore concentrate and smelting or refining to the final metal or alloying component is estimated in the model.
The quality of nickel ore has decreased significantly from 1850 to 2020 and will continue to do so in the future according to the simulated predictions from the WORLD7 model. For nickel, extraction rates are …
Abundant low-grade nickel sulfide ore reserves hold potential as nickel resources but are hindered by high magnesium silicate content, limiting efficient utilization. The authors investigated the possibility of extracting nickel from a low-grade ultramafic nickel sulfide concentrate into ferronickel alloy. The nickel extraction study involved thermal upgrading and …
Nickel extraction from primary resources such as ores/minerals (sulfides, arsenides, silicates, and oxides) including the unconventional one viz., the polymetallic sea nodules, and various ...
An official publication of the Society for Mining, Metallurgy & Exploration Inc. Key words: Leaching, Kinetics, Nickel extraction, Saprolitic ore, Citric acid, Shrinking core model Introduction for the extraction of metals, especially nickel, promise to be meaningful alternatives to pyrometallurgical processes to primarily treat low-grade ...
also limited to concentrate the nickel. The mined ores (1–4% Ni) are processed to upgrade the metal content with 10–20% Ni in the concentrates. Thus, the preconcentration of nickel ores is an important unit operation to upgrade the nickel before commencing any extraction steps. Ni is mined from sulfide ores, Nickel ferrolaterite and serpentine.
Nickel is an essential element for modern society with numerous applications including its significant place in lithium-ion batteries. Sulfide nickel ore plays a significant role in global nickel production, representing around 30% of the total output [].With the depletion of high-grade sulfide nickel ore, it is of significant interest to investigate the possibility of utilizing low …
Semantic Scholar extracted view of "Extraction of ferronickel concentrate from laterite nickel ore by reduction roasting-magnetic separation using spent cathode carbon" by S. Hui et al. ... Efficient nickel extraction from nickel matte by combined atmospheric-oxygen pressure acid leaching: Thermodynamic analysis and sulfur conversion mechanism ...
In general, the Niâˆ'Mo ore enriches in nickel, molybdenum and vanadium and is used for extracting nickel and molybdenum raw materials with a gross reserve of 9.37 million tons [1,3]. For the Niâˆ'Mo ore, the classical process for nickel and molybdenum recovery is roasting, melting and concentration to produce a high impurity nickel∠...
Students can perform reduction experiments themselves such as reducing iron oxide to iron. A favourite class practical lesson is extraction of iron on a match head. Begin by showing a sample of the iron ore haematite. Discuss sources of iron ore and mines such as the former Florence iron mine in Egremont, Cumbria which closed in 2008.
The conventional nickel smelting and refining is the dominant strategy for nickel production from the sulfide nickel ores. The main disadvantages are the significant amount of SO 2 emissions during smelting and complex refining processes. In this paper, the authors investigated a solid-state nickel extraction method that recovered nickel values into …
A characteristic feature of serpentine oxidized nickel ores (ONO) of the Serov deposit (≈ 1 wt.% Ni) is the increased content of iron and magnesium. The main nickel-containing phases are lizardite, antigorite, clinochlore and iron oxides with the nickel content varying from 1.6 to 9.2 wt.%. Heap (percolation) leaching with aqueous H2SO4 solutions was used for …
Nickel extraction from Morowali laterite ore has been carried out with nitric acid as the solvent. This study aim s to determine the effect of nitric acid concentration, temperature, and stirring ...
Over the past 30 years laterite ores have become increasingly more important as a source of nickel metal (Dalvi et al., 2004).Several methods of nickel extraction from laterite ores have been piloted and some were put into full operation, including acid leach with sulphuric, nitric and hydrochloric acids, ammonia leach and the pyrometallurgical process (Superiadi, 2007).
The demand for nickel and cobalt continues to rise due to their essential roles in a wide range of industrial applications. Although laterites account for 70% of global nickel reserves, the extraction of nickel from laterite ores is complex and requires different methods for each layer of the ore body due to differences in mineralogy.
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 energy consumption caused by high-temperature operation, resulting in high costs and poor economic benefit of the entire smelting process.5 Taking JNMC's concentrate with an ...
The extraction of molybdenum and nickel from Ni-Mo ore was attempted using oxidation complexation acid leaching. The effects of leaching temperature, leaching time, concentration of sodium chlorate and hydrochloric acid as well as sodium dihydrogen phosphate on the leaching of nickel and molybdenum were investigated.
Nickel ores are processed to extract nickel and produce nickel-containing products, such as nickel matte, nickel pig iron, ferronickel, and nickel chemicals, which are …
The sulfation roasting leaching method has been developed for the recovery of nickel from laterite ore because it offers greater flexibility, and requires less energy compared to acid leaching and smelting processes. However, the previous studies found that the mineral carriers from saprolite ore affected the recovery of nickel and cobalt. To address this issue, …
Nickel extraction technology from nickel sulfide ore based on "sulfated roasting–water leaching" can achieve high efficiency and clean extraction of nickel, but how …
Recovery of nickel from a PNG nickel laterite with high content of iron by a sulphation roasting-water leaching has been studied. The influences of sulfuric acid/ore ratio, temperature of roasting and water on recovery efficiency were investigated.
Nickel in laterite is associated within silicate in saprolite ore and hydroxide/oxide in limonite ore. Recently, the sulfation–roasting–leaching process has been developed to …
An assumption was made on the segregation mechanism of nickel from garnierite ore in the previous paper. In this work, the assumption was confirmed by experimental data by using same process for extraction of nickel by XMA, electron beam scanning microscope and chemical analysis of the concentrates obtained. Fine ferronickel powder having very high nickel content …
(NH 4) 2 SO 4 roasting followed by water leaching to process nickel- chromium mixed metal oxidized (MO) ore was investigated. The optimal operating parameters were obtained after determining the influences of the molar ratio of (NH 4) 2 SO 4 to mixed oxidized ore, roasting temperature and roasting time on metal extractions. The extraction efficiencies …
The extraction of molybdenum and nickel from Ni-Mo ore was attempted using oxidation complexation acid leaching. The effects of leaching temperature, leaching time, concentration of sodium chlorate and hydrochloric acid as well as sodium dihydrogen phosphate on the leaching of nickel and molybdenum were investigated.
Nickel is a kind of silvery white ferromagnetic metal firstly separated by Swedish mineralogist A.F. Cronstedt in 1751. It is in the eighth group of the fourth period in the periodic table of elements, with atomic number of 28, atomic weight of 58.71, density of 8.9 g/cm 3 (20 ℃), melting point of 1455 ℃, and boiling point of 2915 ℃. The most stable oxidation state of …
Synchronous extraction of nickel and copper from a mixed oxide–sulfide nickel ore in a low–temperature roasting system. Journal of cleaner production 177, 371–377 (2018). Article CAS Google ...
Hydrometallurgy is a process used for nickel ore that has a grade of < 1.5%, while pyrometallurgy is still used for nickel ore that has a Ni content of < 3%. At present, the most common hydrometallurgical process is applied to limonite nickel ore. While the extraction process in pyrometallurgy uses saprolite nickel ore.