Olivine Tailing Sampling
The Atlas Materials Process for Carbon Negative Nickel …
Olivine often contains nickel, cobalt and iron. These elements will also react with the acidic leachate. Nickel and cobalt extraction from olivine is beneficial to the production of nickel and cobalt as hydroxide. Iron may extract as ferrous iron from olivine and with the addition of sodium hypochlorite may be oxidized to precipitate.
Mine waste from carbonatite deposits as potential rare …
Tailing samples were collected from 6 different sectors. A composite of approximately 5 kg and up to 2 m depth, were taken from each section (Fig. 1), including six samples of recently piled tailings and 14 samples of different ages. The description and coordinates of the sampling points for both WRD and tailings are displayed in Appendix 1.
Chemical composition of the olivine-rich sample
In this study, an olivine-rich sample obtained as final tailing from a chromite enrichment process was characterized in detail. Within this scope, physical, chemical and mineralogical...
Parameter values used in the carbonation experiments.
In this study, an olivine-rich sample obtained as final tailing from a chromite enrichment process was characterized in detail. Within this scope, physical, chemical and mineralogical properties ...
SAMPLING METHODS FOR IMPOUNDED TAILINGS
sampling. It is the most accurate method of sampling a tailing deposit, but it is usually too expensive to use. This method is used chiefly to confirm the results of auger sampling. Auger …
Signal to Noise Ratio and Spectral Sampling Constraints …
manuscript submitted to Earth and Space Science 1 2 Signal to Noise Ratio and Spectral Sampling Constraints on Olivine Detection and 3 Compositional Determination in the Intermediate Infrared Region: Applications in 4 Planetary Sciences 5 6 S. A. Pérez-López1, C. H. Kremer2, and J. F. Mustard1 7 1Department of Earth, Environmental, and Planetary Sciences, Brown …
Mg isotope composition of San Carlos olivine in different sampling …
Download Table | Mg isotope composition of San Carlos olivine in different sampling positions from publication: High precision analysis of Mg isotopic composition in olivine by laser ablation MC ...
Simultaneous ex-situ CO2 mineral sequestration and
Hydrothermal alteration batch experiments were conducted on olivine bearing mine tailings in order to investigate two potential valorization methods: the ex-situ CO2 …
Evaluation by Multi Gravity Separator (MGS) of a Low …
gravity separator (MGS) of a low grade fine chromite tailing in Yesilova-Burdur were investigated. Material and methods Material Chromite tailings are located in Yesilova town of Burdur ... the sample was fully serpentinised. Olivine remains could be determined as fine particles with-in the serpentine matrix. Sieve texture was developed dom-
Distribution and Phytoavailability of Potentially Toxic Metals …
The environmental risk of potentially toxic metals in tailing soils is of universal concern. We conducted a 3-month pot experiment to research the distribution and variations of potentially toxic metals (PTMs), and the translocation and accumulation capability of these metals (Cr, Ni, Mn, Cu, Zu) in natural plants for three Fe/Mg tailing soils (serpentine-type, olivine-type …
Determination of heavy metal elements concentration in soils …
Geochemical concentration of soil sampling and tailing sediment from Motui area. ... whereas olivine is mostly responsible for Fe . content if the rocks are still fresh and magnetite if the .
(Bio)leaching Behavior of Chromite Tailings
For the last case, the presence of gangue minerals such as goethite, serpentine, olivine, and talc has led to the utilization of lean ore after beneficiation. ... When the fresh tailing sample is incubated with A. thiooxidans, there is a release of Al starting from 302 to 1784 mg/kg, from 725 to 1826 mg/kg, ...
Application of multiple linear regression (MLR) analysis …
results of mineralogical analyses of the sample (Fig. 1) showed that the chromite tailing contained chromite and serpentine which formed as a result of alteration of serpentine group minerals such as olivine, chrysotile and talc. As seen in Fig. 1a, the …
CHARACTERIZATION OF AN OLIVINE-RICH CHROMITE …
In this study, an olivine sample obtained as final tailing from a chromite enrichment plant was examined for its sintering properties and utilization potential as a refractory raw …
Characterisation and separation studies of Indian chromite
The leaching of the fresh tailing sample with distilled water shows a stable pH close to 7, and is 0.2 units higher for the pulp density at 30 g/L compared to 5 and 10 g/L (Figure 3a).
Effect of wetting and drying processes on ultramafic and mafic tailing …
Initially, the tailing sample's pH was 8.4-9.7 and decreased to 7.7-9.1 over the 18 weeks. Soil additions lowered the initial pH and converged with the tailing's pH over 18 weeks.
(PDF) Acceleration of Hydrogen Production during Water-Olivine …
The effects of temperature on hydrogen (H2) production in the alteration of olivine [(Mg,Fe)2SiO4] have been investigated under both CO2-rich (0.5 mol/L NaHCO3) and CO2-free conditions at 225-300 oC.
Signal to Noise Ratio and Spectral Sampling Constraints on Olivine …
Particle size is listed for the bulk sample, with olivine particles ≤100 μm (Kremer et al., 2020). 2.1.1 Library Spectra. We build our spectral library around reflectance data of synthetic olivine of varying composition as well as a suite of lunar-relevant minerals including pyroxene, anorthite, spinel, and ilmenite. We include 11 spectra ...
Mineralogical Characteristics of the Nickel Laterite, …
The serpentine, olivine, clay, chlorite, hematite, and magnetite are the major minerals, and the pyroxene, actinolite, limonite, and chromite are the minor minerals in the nickel laterite in Southeast Sulawesi, Indonesia. Serpentine and olivine are the main nickel minerals with an average nickel concentration of 3.65 wt% and 1.73 wt%, respectively.
3D crystal size distributions: A case study on quantifying olivine …
The analysis yielded 2269 and 3337 olivine grains, respectively, 1721 and 2385 of which were completely inside the sample volume. Olivine grains in ol200 were segmented with a thresholding filter selecting grey-values from 50 to 73 connected to grey-values from 50 to 66 (seeded thresholding) after the data set was subjected to a median filter ...
THE UTILIZATION OF COPPER-NICKEL TAILING
Pilot plant tests on. one sample of Duluth gabbro oreb have indicated that the weight recovered as concentrate would be about 3 percent of the weight of the ore. ... the dominant minerals in the tailing will be anorthite, olivine, amphibole, chlorite, and pyroxene with lllinor amounts of biotite and ilmenite (Table 2).3 ~ABLE. 2. DISTRIBUTION ...
Sampling Design To Best Capture The Aging Of In-situ …
Twenty years of study have contributed to a detailed understanding of geochemical and geotechnical properties of the McClean Lake tailings. Validation of the tailings properties …
Mine waste from carbonatite deposits as potential rare earth …
Tailing samples were collected from 6 different sectors. A composite of approximately 5 kg and up to 2 m depth, were taken from each section (Fig. 1), including six samples of recently piled tailings and 14 samples of different ages. The description and coordinates of the sampling points for both WRD and tailings are displayed in Appendix 1.
Kinetics-informed global assessment of mine tailings for …
Tailings containing high abundances of olivine, serpentine and diopside show the highest CDR potential due to their favourable kinetics. We conclude that the most suitable tailings for CDR purposes are those associated with olivine dunites, diamond kimberlites, asbestos and talc serpentinites, Ni sulphides, and PGM layered mafic intrusions.
Speciation Characterization and Environmental Stability of …
Figure 1 a offers a broad overview of the heterogeneous nature of the slag tailing sample. Figure 1 b zooms in to reveal particles with angular and irregular shapes. ... (olivine and pyroxene), oxides (magnetite and hematite), sulfides (chalcocite, chalcopyrite, galena, sphalerite, and bornite), pure metals, intermetallic compounds, and glass ...
Characterisation and separation studies of Indian chromite
The tailing sample collected from a typical beneficiation plant of Sukinda region of India had the following assay values: 17.0% Cr 2 O 3, 23.9% Fe (T), ... and the associated minerals are goethite and Fe silicates such as olivine, pyroxene, etc. It was concluded that silica content in the sample contributed majorly from Fe silicate minerals ...
Preparation and electrothermal performance of nickel tailing …
Figs. 2 b-2 d showed that the nickel tailing particles after high-energy ball milling were irregularly shaped and their size was less than 20 µm. The nickel tailings were mainly in the form of Fe-Mg olivine, being composed of Fe, Mg and O elements, as shown in Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6.
STUDIES ON REDUCTION IN CHROMITE LOSSES …
The tailing sample is very fine grained in nature and contains significant amount (~68 Wt.%) of particle below 11 μm. The chemical analysis of head sample shows a value of 20.23% Cr2O3. Mineralogical study revealed that chromite is the …
Distribution and Phytoavailability of Potentially Toxic Metals …
Serpentine-type tailing soils (STS) and olivine-type tailing soils (OTS) showed abundant Mg, while magnetite-type tailing soils (MTS) showed abundant Fe. In accordance with the pH …
Frontiers | An Experimental Study of the Carbonation of …
Harzburgite (Figures 1B1–B3) samples show the most minor variation, both within and between subsamples.They consist dominantly of olivine (forsterite), with orthopyroxene (enstatite) around 20% and a small amount of clinopyroxene that ranges from around 1–4%, minor amphibole, chlorite, talc, and trace interstitial chromite (Table 1).The olivine was partially …
Sintering properties of olivine and its utilization potential as …
In this study, an olivine sample obtained as final tailing from a chromite enrichment plant was examined for its sintering properties and utilization potential as a refractory raw material. For this purpose, cylindrical specimens were first prepared and then sintered at the temperatures of 1300, 1400, 1450 and 1500 °C for 2 h in a laboratory ...
(PDF) Evaluation by Multi Gravity Separator …
In this study, concentrability by a Multi-Gravity-Separator (MGS) of the chromite tailings with content 23.84% Cr2O3 from Yeşilo-va-Burdur (Turkey) is investigated.
Olivine
Olivine is commonly recognized by it high retardation, distinctive fracturing, lack of cleavage, and alteration to serpentine. Colorless to olive green in thin section. ... This sample also shows some plagioclase feldspar with albite twinning. Photomicrograph of olivine in basalt in crossed polars with cleavage planes parallel to crosshairs of ...
Carbon mineralization with concurrent critical metal recovery …
The success of high carbon mineralization efficiency and highly selective metal extraction in one step makes the accelerated mineral carbonation applicable. Nickel recovery …
Tailing Material | Sampling Systems | Mining
In addition to traditional geotechnical samplers, ConeTec has designed several specialty sampling systems specific to mine tailings applications. These samplers are designed to collect representative samples in tailings materials ranging from process water, to fluid slimes, to liquefiable sandy silt, to dense beach and dyke deposits.
Acceleration of hydrogen production during water-olivine …
The effects of temperature on hydrogen (H 2) production in the alteration of olivine [(Mg,Fe) 2 SiO 4] have been investigated under both CO 2-rich (0.5 mol/L NaHCO 3) and CO 2-free conditions at 225–300 °C.Under CO 2-rich conditions, H 2 production rates showed strong temperature dependence, where the rate drastically increased for ≥275 °C, while the rate in …
Distribution and Phytoavailability of Potentially Toxic Metals …
The environmental risk of potentially toxic metals in tailing soils is of universal concern. We conducted a 3-month pot experiment to research the distribution and variations of potentially toxic metals (PTMs), and the translocation and accumulation capability of these metals (Cr, Ni, Mn, Cu, Zu) in natural plants for three Fe/Mg tailing soils (serpentine-type, olivine-type and magnetite …
Speciation Characterization and Environmental Stability of …
Figure 1a offers a broad overview of the heterogeneous nature of the slag tailing sample. Figure 1b zooms in to reveal particles with angular and irregular shapes. ... (olivine and pyroxene), oxides (magnetite and hematite), sulfides (chalcocite, chalcopyrite, galena, sphalerite, and bornite), pure metals, intermetallic compounds, and glass ...
Effect of wetting and drying processes on ultramafic and …
Silicate minerals found in U+M tailings include olivine (forsterite-fayalite solid solution, (Mg,Fe) 2SiO 4), pyroxenes including clinopyroxene and orthopyroxene (diopside, ... A 5.00-g sample (±0.05 g) of each tailing was measured into a 100-mL Falcon tube with 50 mL of 0.1 M HCl and placed onto a shaker with 5 cm, 240 oscillations per minute ...
(PDF) Recovery of Chromite from Processing Plant Tailing …
Field-emission scanning electron microscopy (FE-SEM), X-ray diffraction (XRD), vibration sample magnetometer (VSM), Energy-dispersive X-ray spectroscopy (EDX), Fourier transform infrared ...