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Nevertheless, when reduction roasting–magnetic separation is used to treat laterite nickel ore with low nickel content, increasing the dosage by approximately 8–20% inevitably reduces equipment life and increases cost (Liu et al.,2021). Therefore, improving the grades and recoveries of iron and nickel is of major significance.
The self-reduction, fine grinding, and magnetic separation of nickel laterite ore in the presence of three types of additive were examined. Nickel laterite ore with 7.88 wt% coal, 12 wt% calcium ...
The self-reduction, fine grinding, and magnetic separation of nickel laterite ore in the presence of three types of additive were examined. Nickel laterite ore with 7.88 wt% coal, 12 wt% calcium ...
The leaching behavior of nickel and iron in limonite-type laterite nickel ore was studied through ammonium hydrogen sulfate atmospheric leaching. The leaching temperature, ammonium bisulfate concentration, reaction time, and acid excess rate during the nickel dissolution process were optimized using the response surface methodology (RSM) …
overview of the process used to isolate nickel from its ores and an important source of …
Semantic Scholar extracted view of "The reduction of nickel from low-grade nickel laterite ore using a solid-state deoxidisation method" by Bo Li et al. ... The reduction and magnetic separation of low-grade nickel laterite was studied at varing temperatures between 1325–1400°C and a weak magnetic field of 100 mT in order to acquire high ...
A novel hydrometallurgical process was developed to separate cobalt and nickel from hydrochloric acid leach liquor of mixed nickel–cobalt hydroxide precipitate. After the removal of Al(III), Ca(II), Cu(II), and Fe(III) by extraction with P204, Co(II) was selectively extracted over Ni(II) and Mg(II) using N235. The extraction of cobalt can reach 99.99%, while the extraction of …
Lateritic ore contributes to 70% of total nickel resources. However, due to its low grades, and comparatively higher impurity constituents, it requires specific preprocessing steps prior to utilization. ... Yasri NG, Separation of nickel from cobalt using electrodialysis in the presence of EDTA, Journal of Applied Electrochemistry, no.4, 30 ...
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 …
The self-reduction, fine grinding, and magnetic separation of nickel laterite ore in the presence of three types of additive were examined. Nickel laterite ore with 7.88 wt% coal, 12 wt% calcium ...
Nickel laterite ore is used to produce nickel metal, predominantly to manufacture stainless steel as well as nickel sulfate, a key ingredient in the batteries that drive electric vehicles. Nickel laterite production is on the rise and surpassing conventional sulfide deposits. The efficiency of mining and processing nickel laterites is defined by their mineralogical …
The main source of nickel has gradually become the recovery of ferronickel concentrate from low-grade laterite nickel ore. In this work, high-grade ferronickel concentrate was prepared by a reduction roasting-magnetic separation process, and low-grade ferronickel concentrate and CaF 2 were used as composite additives to promote the aggregation and …
A New Process for Co-Ni Separation – ALTA 2010 1 A New Process for Cobalt – Nickel Separation By D.L. Jones 1, T.M. McCoy, K.E. Mayhew1, C.Y. Cheng 2, K.R. Barnard, W. Zhang2 Presented by David Jones david.jones@teckcominco ALTA 2010 Perth, WA, Australia May 25, 2010 1 CESL Limited, Richmond, BC, Canada
This study focused on the extraction of nickel from a low-grade lateritic ore. The characterization of representative samples was done by X-ray diffraction (XRD), X-ray fluorescence (XRF), and ...
separation of low-grade nickel laterite ore TO PRODUCE HIGH NICKEL CONCENTRATE Q Li 1, Y C ui 2, D Zhu 3, J Zhu 4, J Pan 5, H Zhang 6 and G Zheng 6
The SILM showed selectivity for cobalt over nickel with separation factors as high as 218. Membrane stability was proven to be excellent, since the same SILM was used three times without losses of performances. ... serpentine-rich sulfide ore using an alkaline glycine lixiviant system. Miner. Eng., 145 (2020), p. 106073, 10.1016/j.mineng.2019 ...
Separation and recovery of iron and nickel from low‒grade laterite nickel ore using reduction roasting at rotary kiln followed by magnetic separation technique.
Based on the demand for nickel sulfate for batteries and environmental pollution …
The ore sample used in the work was low-grade nickel sulfide ore provided by Jinchuan Group, China. The chemical composition of the ore analyzed by XRF (XRF, S8 TIGER II, Germany) was shown in Table 1. It can be seen that the valuable metals contained in the ore are nickel and copper, with the content of 4.63 % and 2.75 %, respectively.
The acid-leaching tailings of laterite nickel ore are a hazardous waste generated by the laterite nickel ore industry [1], [2], [3]. As global demand for nickel continues to rise and nickel sulfide resources decrease, the extraction of nickel resources from laterite nickel ores the main development trend of the global nickel industry in the coming years [4].
Nickel laterite ore is used to produce nickel metal, predominantly to manufacture stainless steel as well as nickel sulfate, a key ingredient in the batteries that drive electric vehicles. ... in this study was successfully upgraded through selective reduction by industrialized rotary kilns followed by magnetic separation. The results indicated ...
Nickel is widely used in industrial processes and plays a crucial role in many applications. However, most of the nickel resource mainly exists as nickel oxide in laterite nickel ore with complex composition, resulting in …
Reduction roasting-magnetic separation process initially deeply reduces the …
In this research a procedure has been devised which rejects much of the pyrrhotite while maintaining the necessary level of talc rejection. In batch tests on an ore containing pentlandite, pyrrhotite, pyrite and talc the procedure rejected 57% of the iron sulphides and 98% of the talc and recovered 81% of the nickel in a concentrate assaying 16.5% Ni.
In the case of nickel sulfide ore beneficiation, the primary methods are flotation and magnetic separation, with gravity separation often utilized as an additional approach. Drawing insights from QEMSCAN data, the beneficiation …
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 …
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 …
The processing of nickel from laterite nickel ore (Limonite type) uses a hydrometallurgical process of Atmospheric Pressure Acid Leaching (APAL) which is considered more economical because energy ...
A novel process of roasting and magnetic separation was purposed to extract …
ores is through the production of nickel matte after 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 ...
