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 …
For the limonite in laterite nickel mine, the nickel bearing magnetite concentrate with nickel grade of 1.98% and recovery rate of 88.42% can be obtained by reduction roasting magnetic separation ...
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 ...
Reduction roasting and magnetic separation experiments illustrate that when the nickel laterite ore with the addition of 7% NCS as the additive and 2% soft coal as the reductant roasts for 50 min ...
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 …
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 …
There is considerable interest in the development of new processes to extract the nickel from the oxidic nickeliferous laterite deposits, as the global nickel sulphide resources are rapidly becoming more difficult to access. In comparison to sulphide ores, where the nickel-containing mineral can be readily concentrated by flotation, …
Nickel ore refers to the naturally occurring rocks or minerals that contain significant amounts of nickel. Nickel is a chemical element with the symbol Ni and atomic number 28. It is a silvery-white metal with a relatively high melting point and excellent corrosion resistance. Nickel is commonly found in the Earth's crust, but it is typically …
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 …
Ferronickel enrichment and extraction from nickel laterite ore were studied through reduction and magnetic separation. Reduction experiments were performed ... The sodium salts are able to enhance the reduction roasting-magnetic separation of the laterite ores significantly and improve the content and recovery of nickel and iron of …
nickel in laterite ores. The effect of ore mineralogy on choosing the best strategy to upgrade nickel will be discussed. The findings of this project will help to unlock a …
The present article reviews the insight into the available hydrometallurgical approaches for treating laterite ores and the separation of nickel and cobalt from hydrometallurgy routes. Caron process, a combination of pyrometallurgy and hydrometallurgy, is also well described in the review. ... Bioleaching of lateritic nickel …
The process of deep reduction and magnetic separation was proposed to enrich nickel and iron from laterite nickel ores. Results show that nickel–iron concentrates with nickel grade of 6.96% ...
The chemical analysis of low-grade laterite ore and magnetic separation tailings are shown in Tables 1 and 2. The nickel was reduced from 0.82% of the original ore to 0.3% of the tailings, and the iron content was reduced from 9.7 to 5.0% by magnetic separation. ... it can be seen that the acid leaching experiment has good repeatability, …
The magnetic separation efficiency of nickel from the laterite ore was evaluated using the recovery ratio of nickel R ni using the formula: (1) R Ni = m Ni × β Ni M Ni × γ Ni × 100 % where m Ni is the mass of the magnetic product, g; β Ni is the nickel content in the magnetic product, wt.%; M Ni is the mass of the reduction product, g ...
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 ...
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 difficulty in upgrading the nickel content using physical separation methods. …
Factors Affecting the Upgrading of a Nickeliferous Limonitic Laterite Ore by Reduction Roasting, Thermal Growth and Magnetic Separation.pdf Available via license: CC BY 4.0 Content may be subject ...
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 separation was performed using a modified Jones Wet high intensity magnetic separator (WHIMS). A background field intensity of 15,000 to …
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 CaF2 were used as composite additives to promote …
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 ...
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
An effective strategy to achieve separation and recovery of iron and nickel from low-grade laterite ore via microwave carbothermic reduction roasting is reported. In this work, we determined the underlying reason for the poor separation of iron and …
Increasing attention is being paidto the self-reduction and magnetic separation of nickel laterite ore because of economic and efficiency advantages. The aggregation and growth of ferronickel ...
sbm good magnetic separators for nickel laterite oremagnetic separation of nickel magnetic separation for nickel direct factory.Nickel Ore For Sale.Nickel Ore For Sale,Wholesale Various High Quality Nickel Ore For Sale Products from Global Nickel Ore For Sale Suppliers and Nickel Ore For Sale Factory,Importer Henan Zhengzhou …
Results show that nickel–iron concentrates with nickel grade of 6.96%, nickel recovery of 94.06%, iron grade of 34.74%, and iron recovery of 80.44% could be …
The roasted reduction-magnetic separation process is mainly used for the treatment of laterite ore, which requires the laterite ore to be crushed and ground. Then the reductant …
The effect of magnetic separation on the reduction and magnetic separation of low-grade nickel laterite ore is shown in Figure 9. The experimental conditions were determined as follows: ferronickel concentrate dosage of 30%, reduction temperature of 1250 °C, roasting time of 60 min, reductant dosage of 8%, calcium …
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 …
