2019.9.1 This paper examines the effects of different physical methods on pre-concentration 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
Read More2021.10.24 Abstract. Nickel laterite ore is used to produce nickel metal, predominantly to manufacture stainless steel as well as nickel sulfate, a key ingredient in
Read More2023.10.8 This review summarizes the latest nickel laterite upgrading studies reported in the literature which use physical beneficiation – only studies reported after the
Read More2023.1.19 Based on a brief introduction of properties of metallic nickel, it summarizes the applications of nickel, demand of nickel, resources of nickel, and metallurgical
Read More2021.10.24 ... Lateritic nickel is formed in humid tropical climates by the weathering of ultramafic rocks. Nickel is contained in several minerals, such as magnesium oxides
Read More2019.11.8 With the sharp decrease of sulfide nickel resources, the nickel laterite is becoming more attractive as nickel oxide, nickel matte, and nickel-iron. This study
Read More2002.8.1 A greenfield laterite processing operation to produce nickel cathodes via electrowinning, and recover electrowon copper and cobalt sulphide as by-products was
Read Morenickel ore resources from sulphide ore becomes rare which makes nickel laterite ore as the future of nickel extraction. Unlike sulphide nickel ore processing, laterite nickel ore
Read More2016.7.13 Although laterite ores constitute most known nickel resources, the major source for the production of pure nickel has traditionally been sulfide ores. 1 In recent
Read More2020.7.30 Impact of heterogeneities and surface roughness on pXRF, pIR, XRD and Raman analyses: Challenges for on-line, real-time combined mineralogical and chemical
Read More2023.1.19 A limonitic laterite ore (TFe 50.88 wt% and NiO 0.38 wt%) was reduced at 700 ℃ in the gas of 30 vol.% CO/ (CO + CO 2) for 90 min. The leaching percentage of nickel in the reduction product was 93% after leaching using 0.05 mol/L H 2 SO 4 at temperature of 70 ℃ for 60 min [ 65 ].
Read More2019.9.1 Nickel is supplied from both sulfide and laterite resources. The majority (about 70%) of the world’s nickel resources occur as laterite ores which are often complex and low grade, and therefore expensive to treat using conventional methods ( Xu et al., 2013). This is usually done via high pressure acid leaching which consumes large
Read More2021.10.24 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
Read More2023.2.12 Ferronickel grades of 5–25% nickel are commonly employed [ 3 ]. Nickel is predominantly mined from sulfide and laterite deposits, with the latter accounting for approximately 72% of global production [ 4 ]. While secondary sources of nickel such as lithium ion battery cathode recycling remain important [ 5 ], the majority of demand
Read More2023.7.20 40 nickel laterite samples from New Caledonia plus 6 samples from processed laterites were analyzed for this case study. The 40 samples are from both laterite and saprolite horizons of the nickel laterite profile, Figure 3. To guarantee a reproducible and constant sample preparation for the XRD measurements, the samples were
Read More2013.7.18 Abstract. The magnesium content of laterite ore has a significant impact on the quantity of sulphuric acid required to achieve the target nickel extraction by the high pressure acid leach (HPAL) process, both through direct consumption of acid when magnesium-bearing minerals are dissolved and through “buffering” effects via bisulphate
Read More2022.3.15 镍矿石是含有镍单质或镍铁化合物且能够经济利用的矿物集合体,是镍金属及镍合金冶炼领域的重要原材料。. 1865.,法国加尼尔首次在新喀里多尼亚发现硅酸镍矿,并于1875.正式对该矿进行开采,代表着世界对于镍矿石冶炼的开始。. 根据镍矿中镍元素
Read More2022.9.13 Nickel (Ni) and cobalt (Co) are relevant technological metals for the future of the lithium-ion battery (LIB) industry. Based on the current and projected demand for these, an increased interest in developing processing routes to exploit lateritic occurrences has been observed, as these are reported as critical raw materials for future
Read More2022.3.4 As shown in Table III, the nickel laterite used is a typical limonitic nickel laterite from the Philippines with total iron, nickel, and chromium grades of 45.09%, 0.56%, and 2.36%, respectively.Compared with ordinary iron ores (i.e., the mainstream iron ores used for sintering), limonitic nickel laterite possesses a much lower iron grade, a higher
Read More2020.7.30 Characterization of Weda Bay nickel laterite ore from Indonesia. Saeed Farrokhpay, Michel Cathelineau, Simon B. Blancher, Odile Laugier, Lev Filippov. January 2019 Pages 270-281 View PDF. ... real-time combined mineralogical and chemical analyses on drill cores and implication for “high speed” Ni-laterite exploration.
Read More2024.1.5 INTRODUCTION Nickel laterite ores comprise a significant resource in Australia and according to United States Geological Survey data nearly a quarter of world reserves are located there (USGS, 2016).
Read More2017.11.6 In this study, a new technique was proposed for the economical and environmentally friendly recovery of valuable metals from copper smelting slag while simultaneously upgrading nickel laterite through a co-reduction followed by wet magnetic separation process. Copper slag with a high FeO content can decrease the liquidus
Read More2023.10.12 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
Read More2021.6.2 The results show that 98.7% of nickel and 89.8% of cobalt are leached from the calcined limonitic laterite under optimized leaching conditions; meanwhile, 98.3% of iron is converted into insoluble ...
Read More2021.9.16 As the global energy sector is expected to experience a gradual shift towards renewable energy sources, access to special metals in known resources is of growing concern within the EU and at a worldwide scale. This is a review on the Fe–Ni ± Co-laterite deposits in the Balkan Peninsula, which are characterized by multistage
Read More2023.1.6 3.1 Nickel and Cobalt Extraction from Olivine and Concurrent Carbon Sequestration. Olivine was tested with a dosage of EDTA/total nickel molar ratio = 1.2/1. The test results are shown in Fig. 2.With the CO 2 mineralization reaction progressing, the mineral carbonation efficiency gradually increased to 88% within 8 hours.
Read More2021.11.19 The rotary kiln-electric furnace process accounts for two-thirds of the global nickel output. The raw laterite nickel ore contains approximately 1–5 wt.% Cr2O3, but its recovery is limited during smelting. Due to the inefficient utilization, the accumulated Cr-containing slags are potential environmental risks. This work provides positive results
Read MoreNickel laterite with average grain size below 0.149 mm mixed with 13% (weight percent) of coal as reductant then reduced in muffle furnace with temperature from 700 oC to 1000 oC. Type of laterite is used which has high iron (saprolite) and low iron content (limonite). Reaction time varied 30, 60 and 90 minutes.
Read MoreThe addition of Na2CO3, Na2SO4 and NaOH in the ore pretreatment increases nickel recovery from 14.80% without alkali roasting to 23.99%, 28.15% and 39.22%, respectively. The optimum extraction ...
Read More2022.6.18 Interest in low-grade Ni-laterite ores has increased in recent years; however, the laterite process has proven technically difficult and costly, and the development of alternative low-cost biotechnologies for Ni solubilization has been encouraged. In this context, for the first time, a sample of Brazilian Ni-laterite ore was subjected to microbial
Read More2023.5.28 Nickel Laterite Metallurgy. Nickel laterite metallurgy is a nickel metallurgy technology using nickel laterite as raw material to produce metallic nickel or other products containing nickel. In nature, nickel (Ni) mainly exists in sulfide ore and oxide ore. Nickel oxide ore gets its name for it is a kind of laterite ore with high iron content.
Read More2018.7.17 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,
Read More2013.5.1 Ultramafic laterite soils are deep and well drained, and characterized by very high total iron, chromium, manganese and nickel concentrations, low CEC dominated by magnesium, extremely low concentrations of the plant available nutrients potassium, phosphorus and calcium (Read et al., 2006), and increasing concentration of magnesium
Read More2022.3.15 The concentrate obtained at 60 °C and 1.25 M oxalic acid concentration contained 3.2% Ni (∼10% NiC 2 O 4 2H 2 O) and 3.5% Fe with a corresponding concentration ratio of 4.05, enrichment ratio of 3.44 and nickel recovery of 84%. The proposed method appears to provide a promising prospect for exploiting low-grade nickel
Read More2019.9.9 In this paper, a systematic thermodynamic analysis of carbothermic reduction of saprolitic nickel laterite ore was carried out. Different carbon sources—such as pure C, sub-bituminous, and lignite—were used for the carbothermic reduction at 1000 °C (1273 K). The effect of the different additives—such as S, FeS, Na2S, Na2SO4, and
Read More2019.1.22 Nickel laterite occurrences in Turkey have a Fe-oxide dominated mineralogy and average 1–1.5% nickel grade. Although none of them is a world-class deposit there are still large-scale investments in deposits containing 20–30 million tonnes of nickel ore. On the other hand, smaller deposits showing favourable grades have been
Read More2016.3.15 Original concept for a hydrochloric acid leaching process. The scope for developing a laterite process whereby high purity nickel and cobalt are recovered at reduced energy expenditure is, intuitively, greater using hydrometallurgy. There is therefore a place for such a process capable of treating several different ore types by a single flow ...
Read MoreNickel laterite ore sample used in this study was collected from limonite zone of an abandoned mine in the Latowu village, Batuputih subdistrict of North Kolaka Regency, Southeast Sulawesi Province (Fig.1). The mineralogy of the sample including texture, abundance and types of minerals was initially ...
Read More2023.2.12 Materials. The main chemical composition of laterite ore is shown in Table 1.The ore contained 33.28 wt% iron and 1.48 wt% nickel. The XRD pattern of the ore is shown in Fig. 1.It was found that the main phases of laterite ore were (Fe,Mg)(Cr,Fe) 2 O 4, FeOOH and Al 2 Si 2 O 5 (OH) 4.According to the chemical phase analysis and
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