Extraction of ferronickel concentrate from laterite nickel ore …
Reduction roasting–magnetic separation technology has been extensively applied to the extraction of nickel from laterite nickel ores with low nickel content due to its short …
Production of Ferronickel Concentrate from Low-Grade Nickel Laterite
The production of ferronickel concentrate from low-grade nickel laterite ore containing 1.31% nickel (Ni) was studied by the non-melting reduction magnetic separation process. The sodium chloride was used as additive and coal as a reductant. The effects of roasting temperature, roasting duration, reductant dosage, additive dosage, and grinding time on the …
Preparation of Ferronickel from Nickel Laterite Ore via …
The nickel laterite ore was dried at 120 °C for 2 h in an oven and ground to passing 0.074 mm. The ground nickel laterite was mixed to homogeneously with pulverized coke. ... out and quenched with water to room temperature . Finally, all the products were collected and manually crushed for magnetic separation, and the magnetic intensity ...
Separation and recovery of iron and nickel from low-grade laterite …
The effect of operating variables on the recovery and separation of nickel and iron from low-grade laterite ore was initially investigated during microwave carbothermic reduction roasting to ...
Preparing Ferro-Nickel Alloy from Low-Grade Laterite …
In saprolitic laterite nickel ore, the contents of silicon, magnesium and nickel are high, while that of iron and cobalt are low, which is appropriately treated by pyrometallurgical processes, such …
High-Grade Ferronickel Concentrates Prepared from Laterite Nickel Ore
Considering on the low grade of nickel and iron in laterite nickel ore, solid-state reduction roasting combined with magnetic separation to remove the magnesium silicates …
Chemo-physical concentration of a Low-grade nickel laterite ore
M. Fattahi, M. Noparast, and S. Shafaie, "Physical beneficiation of nickel from a low grade lateritic ore by gravity and magnetic separation," presented at the 4 th Iranian Mining Engineering ...
Preparing Ferro-Nickel Alloy from Low-Grade Laterite Nickel …
In this paper, a research on preparing ferro-nickel alloy from low-grade saprolitic laterite nickel ore using metallized reduction-magnetic separation was studied. In the …
Preparation of Ferronickel from Nickel Laterite Ore via Semi …
The main finding of this work was that magnetic separation is effective in recovering 48% of nickel from laterite, increasing the Ni grade in the recovered product from 1.5% to 2.9%, when prior to ...
Pre-concentration of nickel in laterite ores using physical separation
Of course, upgrading nickel using magnetic separation highly depends on the ore mineralogy and mineral liberation, and if nickel is associated with magnetic minerals. Table 3 also shows that the percentage of iron increases (by ~70%) in the magnetic product for ores S and I, but not for ore L. On the other hand, more silicon bearing minerals ...
Pre-concentration of nickel in laterite ores using physical separation
Excellent performance on even weakly magnetic materials, high magnetic field intensity, middling splitter setting are the key feature of WHIMS (Das and Roy, 2007). A slurry …
Bioleaching of Lateritic Nickel Ores | SpringerLink
Despite nickel-bearing sulfide deposits having a large share of the world's nickel extraction, lateritic ore deposits contain more than 70% of the world's nickel reserves. ... and magnetic separator. The magnetic property of laterite may change with calcination because the Curie ... The organic acid is a good choice for extracting specific ...
Upgrading low nickel content laterite ores using selective …
DOI: 10.1016/J.MINPRO.2012.01.003 Corpus ID: 97937238; Upgrading low nickel content laterite ores using selective reduction followed by magnetic separation @article{Zhu2012UpgradingLN, title={Upgrading low nickel content laterite ores using selective reduction followed by magnetic separation}, author={De‐qing Zhu and Yu Cui and Keith …
High-Grade Ferronickel Concentrates Prepared from Laterite Nickel Ore
In this study, high-grade ferronickel concentrates were obtained through a carbothermal reduction and magnetic separation using laterite nickel ore and anthracite as raw materials. The effects of different types of additives (CaF2, Na2SO4 and H3BO3), carbon ratio (nc/no in metal oxides) and grinding time on the recoveries and grades of ...
Magnetic separation for recovering iron resources from acid …
This was achieved by heating the nickel slag to a temperature of 1550 °C in an electric furnace, utilizing powdered coal as the reducing agent, and incorporating lime. Besides …
Recovery of high-quality iron phosphate from acid-leaching …
Laterite nickel ore is rich in nickel and iron resources, and the nickel element is extracted in the form of nickel salt. ... Magnetic separation for recovering iron resources from acid-leaching tailings of laterite nickel ore through mineral phase transformation. Sep. Purif. Technol. (2024), Article 126931, 10.1016/j.seppur.2024.126931.
Ferronickel enrichment by fine particle reduction and …
Keywords: laterites; ore reduction; magnetic separation; thermodynamics; fine particle metallurgy 1. Introduction According to the survey report of the United States Geo-logical Survey (USGS), approximately 60% of nickel re-sources in the Earth's crust are in the form of nickel laterite ore, and the rest belongs to nickel-bearing sulfide ore [1].
Ferronickel enrichment by fine particle reduction and magnetic
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 …
Preparation of Ferronickel from Nickel Laterite Ore via …
Followed by Magnetic Separation Xueming Lv, Lunwei Wang, Zhixiong You, Jie Dang, Xuewei Lv, ... The nickel laterite ore was dried at 120 °C for 2 h in an oven and ground to passing 0.074 mm. The ground nickel laterite was mixed to homogeneously with pulverized coke. The mixture was then briquetted into a cylinder (Φ30 mm
Innovative process for preparing ferronickel materials from laterite …
An innovative process for preparing ferronickel materials from laterite ore by reduction roasting-magnetic separation in the presence of additives was proposed,and the effect of additives on reducing roasting-magnetic separation of laterite ore and the technical parameters of roasting and magnetic separation were investigated.The results show that the sodium salt additives …
Efficient enrichment of nickel and iron in laterite nickel ore …
DOI: 10.1016/s1003-6326(20)65256-6 Corpus ID: 216163739; Efficient enrichment of nickel and iron in laterite nickel ore by deep reduction and magnetic separation @article{Shuai2020EfficientEO, title={Efficient enrichment of nickel and iron in laterite nickel ore by deep reduction and magnetic separation}, author={Yuan Shuai and Wentao Zhou and Li …
Extraction of Nickel from Garnierite Laterite Ore …
In this study, segregation roasting and magnetic separation are used to extract nickel from a garnierite laterite ore. The garnierite laterite ore containing 0.72% Ni, 0.029% Co, 8.65% Fe, 29.66% MgO, and 37.86% SiO2 …
Magnetic separation for recovering iron resources from …
Download Citation | On Feb 1, 2024, Zhe Bai and others published Magnetic separation for recovering iron resources from acid-leaching tailings of laterite nickel ore through mineral phase ...
Extraction of ferronickel concentrate from laterite nickel ore …
DOI: 10.1016/j.mineng.2023.108194 Corpus ID: 259620999; Extraction of ferronickel concentrate from laterite nickel ore by reduction roasting-magnetic separation using spent cathode carbon
Extraction of ferronickel concentrate from laterite nickel ore …
Request PDF | On Oct 1, 2023, Shunyao Hui and others published Extraction of ferronickel concentrate from laterite nickel ore by reduction roasting-magnetic separation using spent cathode carbon ...
The effect of sodium sulphate on the hydrogen reduction …
The reduction of the prepared nickel laterite ore by H2 was carried out in a fluidised-bed reactor with provisions for temperature and agitation control, and the magnetic separation of the reduced ...
Preparing Ferro-Nickel Alloy from Low-Grade Laterite …
metals Article Preparing Ferro-Nickel Alloy from Low-Grade Laterite Nickel Ore Based on Metallized Reduction–Magnetic Separation Zhihao Wang ID, Mansheng Chu *, Zhenggen Liu, Hongtao Wang, Wei Zhao and Lihua Gao School of Metallurgy, Northeastern University, Shenyang 110819, China; wangzhihao361@163 (Z.W.);
Study on selective reduction and magnetic separation of …
Corpus ID: 139473766; Study on selective reduction and magnetic separation of low-grade nickel laterite ore to produce high nickel concentrate @inproceedings{Li2010StudyOS, title={Study on selective reduction and magnetic separation of low-grade nickel laterite ore to produce high nickel concentrate}, author={Q. Li and Yu Cui and D. Zhu and J. Zhu and Jilong …
Characterization of Weda Bay nickel laterite ore from Indonesia
A schematic diagram of the Cycle of magnetic separation used in the current work is shown in Fig. 10. It was found that the Weda Bay laterite ore has about 8% magnetic part (magnetite, Fe 3 O 4) with no (or very minimal) nickel content. The result of SEM and EDS analysis revealed that the ferro-magnetic part of the ore sample contains 97.3% FeO.
Magnesium Extraction from Magnetic Separation …
Keywords Laterite nickel ore · Magnetic separation tailings · Sulfuric acid leaching · Neutralization hydrolysis · Magnesium oxide. 372 Journal of Sustainable Metallurgy (2022) 8:370–385 1 3 Introduction Magnesium is an alkaline earth metal, and magnesium oxide is its alkali metal oxide. It is tasteless, nontoxic