The current study proposes an efficient approach for the recovery of nickel and other valuable metals from nickel sulfide flotation tailings. In the study, magnesium chloride, sodium chloride, and ferric chloride were investigated as reactants in an acidic medium to improve metal extraction. The effect of leaching time, leaching temperature, H2SO4 concentration, …
The results showed that leaching of about 99% of nickel content of the washed tailing could be achieved using 4.0 mol sulfuric acid, pulp density of 1/20 gmL−1 and particle size of −180 +250 mm at 80 °C after 240 min. Kinetic analysis of …
Nickel reserves are 70 % from laterite ores and nickel production are 40 % from these reserves. It occurs due to the fact that laterites ores require more complex processing than sulfides.
Table 10 lists the major constituents of the bulk sulfide sample. Summary of Copper Nickel Flotation Results. The analyses given in tables 10 and 11 (which shows a partial analysis of the tailings) are in fair agreement with the concentrations predicted for the shaft sample tests by the cyclic laboratory tests.
Ecological challenges in Indonesian nickel mines. With about 21 million tons of nickel resources, Indonesia is home to the world's largest reserves and annual production, making it a hot spot for battery manufacturers and material companies. Nickel, like palm oil, is the new gold. Nickel mining is a significant contributor to Indonesia's GDP.
In the previous research on Golgohar sulphidic tailing (Ahmadi et al., 2015), electron probe micro-analyzer (EPMA) revealed the presence of nickel and cobalt in the sulphidic phases. An iron-chrome‑nickel bearing phase containing 9.5% nickel was also found as an individual particle (Ahmadi et al., 2015). The major copper containing phase was ...
Based on the CBR value in table 4, the entire tailing waste without stabilization material is only used for the embankment. To increase bearing capacity, st abilization agent will be added.
The known copper-nickel deposits are primarily associated with anortho site and troctolite. Hence, the dominant minerals in the tailing will be anorthite, olivine, amphibole, chlorite, and pyroxene …
The nickel slag is recycled back into the process until its nickel concentration is low, and is then disposed of in stockpiles. 72 In China alone, the 2005 generation of nickel slag was 800,000 tonnes, and just 8% of this was utilized for construction purposes, 72,73 with the remainder stockpiled or landfilled. 72 In Greece 1.5 Mt of nickel ...
The Jinchuan nickle–copper mine tailings with a copper grade of no less than 0.30% were treated by mixed Acidithiobacillus ... copper tailings in China from 2007 to 2022; Table S2. Detailed characteristics of large-scale copper mines in China; Table S3. Detailed characteristics of tailing ponds at large-scale copper mines in China; Table S4. ...
The % fines (<75 micron) for gold, nickel, iron, and tantalum tailings are shown on Table 1. The nickel tailings tended to be finer grained (average 75% fines) than both iron (67% fines) and …
The results of chemical tests for composition of nickel slag waste are according to Base on the chemical properties of nickel slag waste in Table 1, ... Tailing waste from gold mining in Papua ...
Nickel extraction by bioleaching from laterite ores and MTs has reached 8–26%, with aerobic conditions and microwave pretreatment enhancing nickel yields. Up to 91.5% nickel recovery from low-grade sulfide tailings and 53–57% extraction in just 7 days have been attained via novel bioleaching techniques [129] .
Table 1 gives tailing speci c chemical composition: 0.74 wt% Ni, 39.45 wt% Fe, 5.1 wt% Mg. Fig. 2 gives Fe, ... Nickel ore is found in two types sulfide and laterite. The sulfide is a nickel ore ...
tantalum tailings are shown on Table 1. The nickel tailings tended to be finer grained (average 75% fines) than both iron (67% fines) and gold (58% fines). Tailings from a tantalum mining operation were comparatively sandy, with only 38% fines. Table 1. % Fines test results by commodity. Gold % fines Nickel % fines Iron % fines ...
Nickel Byproducts Nickel slag: a byproduct of RKEF process technology, a granulated slag formed by natural cooling or water quenching of a melt formed during the smelting process of nickel metal Tailing slurry: a byproduct of HPAL technology, composed of a low percent of solids and relatively high water content.
The FactSage study was done keeping in mind the target composition of 200 series stainless steel. The range of composition of 200 series stainless steel is given in Table 4. From Table 4, it is quite clear that a higher amount of Cr is required in the metal; hence, a ratio of Cr-tailing to sub-grade manganese ore in the mixture must be > 1. For ...
The composition of PLS and recoveries for the main elements have been shown in Table 1. The low recovery of cobalt (2–3%) could be due to the low grade of cobalt in the tailing sample. ... These results show that heap leaching could be a good candidate for the nickel extraction from the flotation tailing. In order to study the nickel ...
Nickel smelting slag contains valuable metals including nickel and copper. Failure to recycle these metals wastes resources, and disposal of nickel slag in stockpiles results in environmental pollution. Nickel slag recycling is important, and metals can be recovered from slag by flotation. However, considering the complex forms in which valuable metals occur in nickel …
This study investigated the recovery of nickel from tailings (0.2% Ni) obtained in a chromite beneficiation plant using H2SO4 leaching followed by oxalic acid precipitation. The tailings were characterized using mineral liberation analysis. Ni was found as Fe-Ni, Fe-Ni-Co sulfide minerals, which were encapsulated in serpentine, olivine, pyroxene and clinochlore. …
Table concentrate and tailing products from À75 + 38 lm attritioned SG ... Upgrading nickel laterite ores to increase their nickel content would enable laterites to be treated using simpler ...
Chromite ore processing tailing, a solid waste generated during the processing of chromite ore, is difficult to recover due to its ultra-fine size. The tailings generated from the process contains valuable chromite and iron-bearing minerals, loss of which is a matter of concern for the ferrochrome industry worldwide. Tailings generated from the processing plant is mainly …
A secondary cleaner flotation tailing sample containing Ni and Co obtained from a nickel flotation plant (Western Australia) was used in this study. The nickel is predominantly mineralised as pentlandite in a disseminated texture in an ultramafic ore. The elemental assay of the samples is shown in Table 1. It indicates the sample contained 0.79 ...
Nature transformed by industry, as it has been here, is the predominant theme of Burtynsky's work. The vibrant rivers in these images seem to be lava flows but are actually nickel tailings, the waste products of metal extraction and mining …
We provide an overview of the current status of research on reprocessing of nickel waste tailings, describe the current condition of the tailings, and set forth an important …
Norilsk Nickel's priorities are to maintain responsible management of tailings facilities and maximise tailings processing, while also ensuring safety and minimising risks throughout the life cycle of tailings facilities. ... Ensure a full-fledged and efficient system to manage environmental risks associated with operating tailing dumps. ...
The percolation leaching of the Cuban nickel tailings containing 0.34% Ni, 0.08% Co and 44.2% Fe was investigated by using tartaric and oxalic acids at different concentrations.
Study on the effect of mechanically ground ferrous extraction tailing of nickel slag on the properties of cement-based materials Feng Qionga,Wei Chaoa, Qiao Hongxiaa, *, Song Yanninga, Zheng Jianghuab aSchool of Civil Engineering, Lanzhou University of Technology bState Key Laboratory of Nickel and Cobalt Resources Compressive Utilization …
This study investigates the influence of salinity on the bioleaching efficiency of a copper‑nickel‑cobalt bearing sulphidic tailing obtained from Golgohar iron ore desulphurization plant ...
RECYCLING OF NICKEL-SLAG TAILINGS INTO LIQUID PRODUCTS: A CASE STUDY ... In addition, the wind blows slag-tailing fines into areas adjacent to the tailings, causing even more environmental damage. ... the "old" nickel-slag tailings at SUNP contain numerous glassy non-magnetic phases with nickel, chromium, iron, etc. [1]. Table 1 lists the ...
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