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, and ...

One-Step Extraction of Nickel from Nickel Sulfide Concentrates by Iron Addition Fanmao Wang, Sam Marcuson, Leili Tafaghodi Khajavi, and Mansoor Barati Abstract The conventional nickel smelting and refining is the dominant strategy for nickel production from the sulfide nickel ores. The main disadvantages are the

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

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 ferronickel …

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 characterization ...

Low-temperature roasting, selective decomposition and water-leaching were used to extract nickel and copper from low-grade nickel sulfide ore with highly alkaline gangue. The effects of variable factors, such as the dosage of roasting additives, the ore particle size, roasting time and roasting temperature, selective decomposition temperature and leaching temperature …

Nickel is an important strategic metal produced at over 2 million tonnes annually [1].Approximately 60% of all Ni is consumed in the production of stainless steel [2, 3].Currently, Ni is primarily extracted from two types of ores: laterites and sulfides [[4], [5], [6], [7]].Although sulfide ores account for a smaller fraction of global Ni reserves, approximately 60% of global Ni …

Abstract In this study, magnesia–nickel silicate ore was investigated, which contained 0.83% Ni and antigorite, chlorite, magnetite (Fe3O4), quartz, and mica as the main minerals. Chloride roasting and magnetic separation were used to treat the ore. The addition of red mud enhanced the transformation of nickel silicate to a strongly magnetic mineral mainly …

Ma et al.(2017b) proposed a non-melting metallurgical reduction process in a tubular furnace to extract nickel and iron from nickel laterite ore. After reduction, most of the nickel and iron aggregated, which is beneficial for magnetic separation, confirming that the optimized process can effectively enhance the metallization of nickel and iron ...

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.

In the present study, for the first time, the effect of sodium acetate, sodium citrate, and the addition of sodium oxalate was investigated in the D2EHPA system for the extraction of nickel and copper. In this study, the optimum condition including pH, the concentrations of additives, and time was found according to the separation factor and the extraction …

1. Introduction. Nickel is a hard, ductile and ferromagnetic metal that is utilized in a variety of applications including stainless steel, alloy steel, batteries, and electroplating (Ilyas et al., 2020, Lei et al., 2020, Ma et al., 2020).As economically available nickel sulfide resources become increasingly depleted, laterite, which is low grade and technically difficult to treat, is …

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 steel is used in the manufacture of armor plates and burglar proof vaults. Nickel alloys are especially valued for their strength, resistance to corrosion and in the case of stainless steel for example, esthetic value. Electroplating is another major use of the metal. Nickel plating is used in protective coating of other metals.

The first extraction step involved the removal of alumi-num and zinc, whereas the second extraction step involved the separation of cobalt along with manganese from nickel. The experimental re-sults showed essentially quantitative removal of aluminum (>97%) and zinc (>99%) in a single extraction stage using 20vol% Cyanex 272 at pH 2.1.

A new extraction technology of chlorination roasting with a mixture of MgCl 2 ·6H 2 O and NaCl was investigated to co-extract nickel and copper from low-grade nickel ores. The effects of some key factors on the extraction of nickel, copper, and iron were studied, and the results show that,when the roasting temperature is 850°C, the roasting time is 1.5 h, the mass …

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 …

The conventional process of nickel extraction from sulfide concentrates involves complex and costly steps, while also generating a considerable amount of sulfur dioxide. The solid-state extraction of nickel from nickel sulfide concentrates by iron addition was proposed as an alternative approach where the nickel was recovered into a ferronickel alloy in a simple …

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 from primary resources such as ores/minerals (sulfides, arsenides, silicates, and oxides) including the unconventional one viz., the polymetallic sea nodules, and various...

The 2020s will see substantial demand growth for lithium, cobalt, nickel, graphite, rare-earth elements, manganese, vanadium and other materials, due to the transition to renewable energy.

As nickel sulfide deposits are exhausted, it becomes necessary to mine and process low-grade laterite ores to satisfy the need for nickel production. To achieve an efficient extraction of Ni, Fe and Co, additives such as chlorides, sulfur and sulfates, alkali oxides, fluorides, sodium carbonate and sodium hydroxide are introduced into the extraction process, …

In this review, resources of nickel and status of different processes/technologies in vogue or being developed for extraction of nickel and associated metals from both primary and secondary...

Nickel metallurgy is a technology to extract nickel from nickel-bearing minerals and secondary resources. Ancient Egyptians, Chinese, and Babylonians used coahuilite with high nickel content to make artifacts. The argentan produced in Yunnan in ancient China contains high nickel, which was once called "Chinese silver" in Europe.

An extraction rate of 95.2% for nickel, 55.4% for iron and 30.4% for chromium, but low extraction rates of the refractory metals (titanium (Ti), molybdenum (Mo), and niobium (Nb)) were obtained under the optimal conditions of the heating temperature of 850 °C, the heating time of 4 h, and the zinc/superalloy mass ratio of 10:1.

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 reaction ...

Nickel extraction from primary resources such as ores/minerals (sulfides, arsenides, silicates, and oxides) including the unconventional one viz., the polymetallic sea nodules, and …

overview of the process used to isolate nickel from its ores and an important source of strategies used to enhance its extraction. Keywords: Nickel extraction, laterite ores, sulfide ores, Ni …

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 magnesium of 1:5.

Nickel extraction processes involve the separation of nickel from the accompanying impurities and the conversion of nickel into a usable form. There are two primary methods used for nickel extraction: pyrometallurgical …