extraction of nickel
Extraction of nickel using a green emulsion liquid …
The nickel extraction by GELM was modelled using generalized regression neural network (GRNN). The neural network model have input layer composed of 5 neurons and output layer with 1 (nickel extraction) neuron. The GRNN was selected as the network type with spread factor for nickel extraction for training and testing.
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Efficient extraction of nickel from chloride system using a …
The efficient recovery of nickel from chloride systems has long presented a challenge in the field. While solvent extraction is a viable approach, conventional extractants have been associated with drawbacks such as a high requirement for chloride ions and substantial consumption of acids and alkalis. In response to these challenges, …
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Life cycle assessment of nickel products
During the pyrometallurgical extraction of nickel from sulphidic ore, nickel matte is produced along with sulphur containing off-gases. The off-gases are processed in an acid plant and are converted into sulphuric acid. Because of its desirable properties, sulphuric acid is the most universally used mineral acid and the most produced and ...
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Direct Solvent Extraction of Nickel from Sulfuric Acid Leach …
A new process of direct solvent extraction of nickel from sulfuric acid leach solutions of low grade and complicated nickel resources using a novel extractant HBL110 was proposed. The basic performance of new organic system was investigated and the continuous pilot...
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About nickel
Primary nickel is produced and used as ferro-nickel, nickel oxides and other chemicals, and as more or less pure nickel metal. Over three million tonnes of new or primary nickel are produced and used annually in the world. There are many different nickel ores requiring a variety of techniques to extract the nickel.
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Extraction of Nickel and Cobalt from Sulfide Ores
The extraction of Ni from sulfide ores is much simpler relative to laterites and is dominated by pyrometallurgical processing. This typically involves comminution and flotation to produce a nickel ...
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Solvent extraction of nickel and cobalt with synergistic …
The extraction of nickel with α-hydroxy oxime/carboxylic acid mixtures was of considerable potential commercial interest in the 1960s and 1970s due to the fact that separation factors of up to 50 were observed for nickel over cobalt in sulphate solutions and the ability to extract nickel in preference to ferric ion, which was then unmatched by ...
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Extraction of nickel with capric acid
Extraction of nickel with capric acid 2595 Composition and extraction constants of nickel caprates involved in the extraction We assume a monomer NiR2xHR and a dimer (NiR2yHR)2. Values of (iogDNi--2pH) are plotted against (logCNi,w+2pH) at constant [(HR)2]0 and the results are given in Fig. 3. These curves are compared with a …
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Effective extraction of nickel and cobalt from sintered nickel …
Despite high extraction of nickel in the reported literature, the sulfuric acid aging process involves high concentration of sulfuric acid. It is possible to consider a novel process to effectively extract the nickel in sintered nickel alloy, while the oxidized passivation of the nickel surface can be further investigated. ...
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Comprehensive Review on Metallurgical Upgradation Processes of Nickel
The main methods have been extensively reviewed for nickel extraction from nickel sulfide ores which maybe are potentially applicable to provide new ideas for smelting technology innovation of nickel and even other similar metals. The main metallurgical methods include pyrometallurgical and hydrometallurgy, containing smelting, leaching, …
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Nickel processing | Extraction & Refining …
nickel processing, preparation of the metal for use in various products. Although it is best known for its use in coinage, nickel (Ni) has become much more important for its many industrial applications, which owe …
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Strategies for improving the environmental performance of nickel
Compared with the effect of lithium and cobalt extraction, the potential increase in land disturbance caused by nickel extraction is significantly higher (Lèbre et al., 2020). Therefore, aiming to ensure the full life cycle carbon emission reduction benefits of subsequent nickel-related low-carbon technologies, the environmental risks caused ...
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The Extraction of Silica from Nickel Laterite Ore by Alkaline
Silica was extracted from nickel laterite ore by hydrothermal process with sodium hydroxide as reaction assistant. The effects of reaction temperature, reaction time, and NaOH-to-ore mole ratio on the extraction rate of silica were investigated by a single-factor experiment. The optimal reaction conditions for the preparation of silica were …
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Extraction of nickel from spent catalyst using fresh and …
The optimum conditions for nickel extraction were defined as the condition at which extraction of various metals was of the highest efficiency possible aiming for small chemical dosages and short reaction times. 2. Materials and methodThe chelating agent in terms of both kinetics and removal efficiency depends on a number of factors: metal type ...
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Extraction of Nickel, Cobalt, and Scandium from Low-Grade …
Extraction values of nickel, cobalt, scandium, and iron show similar dissolution characteristics, as these are mainly entrapped in hematite and goethite minerals. Higher extraction values of nickel, cobalt, and scandium were observed when sulfuric acid was used, as compared with nitric acid.
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Extraction of nickel from Ramu laterite by sulphation …
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.
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Nickel processing
The extraction of nickel from ore follows much the same route as copper, and indeed, in a number of cases, similar …
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The Comprehensive Guide to Nickel Processing
There are two primary methods used for nickel extraction: pyrometallurgical processes and hydrometallurgical processes. 1. Pyrometallurgical Processes. Pyrometallurgical processes are based on high-temperature reactions and involve the use of heat to extract nickel from the ore. The two main pyrometallurgical methods used for …
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Towards "zero waste" extraction of nickel from scrap nickel …
An extraction rate of 97.2% for nickel and 9.8% for iron, but very low extraction rate of chromium (Cr)and the refractory metals (niobium (Nb), molybdenum (Mo), and titanium (Ti)) were obtained under the optimal conditions of the heating temperature of 800 °C, the heating time of 240 min, and the mass ratio of alloy to …
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(PDF) Hydrometallurgical Processing of Nickel …
PDF | On Mar 11, 2019, Sait Kursunoglu and others published Hydrometallurgical Processing of Nickel Laterites—A Brief Overview On The Use of Solvent Extraction and Nickel/Cobalt Project For The ...
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Extraction Behavior of Nickel and Cobalt From Serpentine …
The demand for nickel has been steadily increasing in the 21st century, primarily driven by the rising demand for electric vehicle batteries. 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 address the challenges of …
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Extraction of molybdenum and nickel from carbonaceous …
The effect of sulphation roasting temperature on the extraction of molybdenum and nickel was studied from 100 °C to 310 °C, keeping the time of 1 h and the water leaching conditions constant.The results in Fig. 3, show little effect of temperature on molybdenum extraction in temperature range of 100 to 240. °C, with molybdenum …
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Advanced Review on Extraction of Nickel from Primary …
on Extraction of Nickel from Primary and Secondary Sources, Mineral Processing and Extractive Metallurgy Review, 40:3, 157-193, DOI: 10.1080/08827508.2018.1514300
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Advanced Review on Extraction of Nickel from Primary and …
Nickel extraction from primary resources such as ores/minerals (sulfides, arsenides, silicates, and oxides) including the unconventional one viz., the polymetallic …
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Efficient extraction of nickel from sintered alloy by stepwise …
Despite the high extraction of nickel in the reported literature, the extraction can be further improved to leach most of nickel and the leaching process can be optimized to save energy. In addition, mechanical ball milling has been widely used to extract valuable metals from ores, e-waste, and tailings ( Korehi et al., 2013 ).
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Ammonia leaching process for selective extraction of nickel …
In this paper, firstly, the possibility of selective extraction of nickel and cobalt from MHP was evaluated from a thermodynamic standpoint. Then, the impacts of the leaching agent composition, temperature, time, and the liquid-solid ratio on the ratios of Ni and Co leaching were experimentally examined. XRD, SEM/EDS, and other …
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Solvent Extraction Process of Nickel Sulfate for Battery …
The nickel recovery performs back-extraction of nickel, which remains in the organic phase coming from the preceding exchange stage, into the aqueous phase to prevent nickel from remaining in the succeeding Co-recovery stage. In the Ni-recovery stage, the pH value is controlled to less than 4 by adding sulfuric acid and the following …
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Extraction of Nickel from Oxidized Nickel Ores by Heap …
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 …
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About nickel
Over three million tonnes of new or primary nickel are produced and used annually in the world. There are many different nickel ores requiring a variety of techniques to extract …
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Influence of Alkali Salts on Extraction of Nickel From
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 …
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