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Usually, chromite ore enrichment is carried out by using gravity separation due to high-concentration criterion between chromite and other minerals. However, chromite ore from Sukinda region, India, is a typical ore body with high iron content in the chromite spinel as well as gangue content in the form of oxide and hydroxides of iron …
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The separation of single grained and dust-free sands occurs in four steps by a combined technology, two magnet-steps and "density-separation", as well as screening …
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This paper describes the results of a series of physical separation, and chromite bench flotation tests that have been carried out at acidic and natural pH respectively, on UG2 tailings from ...
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Spirals, the most common equipment for the separation of heavy minerals such as chromite, are greatly affected by size distribution and the liberation degree (hence the specific gravity and size) of the feed particles. In this study, the efficiency of spirals in separation of low-grade chromite particles has been investigated by studying the …
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There are proven and well established widely accepted techniques for concentration of chromite ores such as spiral concentration, jigs and shaking tables. However, these techniques become inefficient and complex when treating fine and ultrafine size particles (less than 75μm) resulting in this size fraction lost to the tailings. As a …
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As a result, a wet magnetic separation technology for recovery of ultra-fine chromite (Cr 2 O 3) from spirals tailings as a scavenger was investigated. The Middle Group Chromitite layer (MG) spiral tailings was characterized using XRF, XRD, SEM and screen sieves with the aim of determining the viability of using the wet high intensity magnetic ...
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DOI: 10.1016/J.POWTEC.2012.01.035 Corpus ID: 98667820; Modeling and optimization of spiral concentrator for separation of ultrafine chromite @article{Tripathy2012ModelingAO, title={Modeling and optimization of spiral concentrator for separation of ultrafine chromite}, author={Sunil Kumar Tripathy and Yanamandra Rama Murthy}, journal={Powder …
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Chromite–serpentine separation was performed applying the froth flotation method, in which chromite was concentrated in the concentrate and serpentine was enriched in the tailings. ... Similar experiments were realized using the sodium salt of ethylene diamine-tetraacetic acid as modifier. From Fig. 7 a it is evident that EDTA is …
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Silica sand and chromite (prior to separation) Separation taking place Reclaimed chromite sand (after separation) XRF Test Data . Conclusion As can be seen from the above XRF results, the seperated chromite sand contains less than 0.5% silica contamination and therefore is perfect for re-use at the mixer. As a general side
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This study aimed to evaluate the chromite recovery from shaking table tail-ings of Forumad plant by a dry high-intensity magnetic separation.
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Prior to that, detailed reviews on magnetic separation of chromite fines have been summarized from the published literature. subsequent column flotation produced a concentrate of 46%–48wt% Cr2O3, with a recovery of 60%–65% [4]. Enrichment (i.e., increased Cr:Fe ratio) of a chromite sample from the Aladag concentrator, Turkey using …
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Chromite ore is geologically associated with gangue materials which have lower density compared to pure chromite (FeO.Cr2O3). Gravity separation techniques are very suitable for …
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The investigations carried out by Bhima Rao et al. (1997), reveals that Cr/Fe ratio of off-grade chromite samples of Orissa, India, can be improved to 1.85–3.0 with a recovery …
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Magnetic properties of chromium-containing laterites from the Philippines and Vourinos deposit, Greece, were investigated. Magnetic properties of the main minerals in the ore, chromite and ...
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High separation efficiencies are not as common as competing processes, so they are best used as a pre-cleaning stage for subsequent separation process based on the liberation characteristics of the treating material. Chromite ore beneficiation is majorly dominated by gravity concentration techniques.
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The Cr:Fe ratio (chromium-to-iron mass ratio) of chromite affects the production of chrome-based ferroalloys. Although the literature contains numerous reports related to the magnetic separation of different minerals, limited work concerning the application of magnetic separation to fine chromite from the Sukinda region of India to …
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Omega Chromite Separation | Sand Reclamation. Omega has developed three models with outputs of 1, 5 and 10TPH (tonnes per hour), ideal for the needs of small and large steel foundries alike. To discuss detailed specifications, call our expert team on +44 (0) 1733 232 231 or make an online enquiry and we will be happy to help.
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Chromite ore is geologically associated with gangue materials which have lower density compared to pure chromite (FeO.Cr2O3). Gravity separation techniques are very suitable for beneficiation of ...
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3. Results and discussion3.1. Characterisation studies. Particle size distribution of the chromite tailing sample is given in Table 1.The results show that the sizes of about 80% (by weight) of the particles are < 260 μm and 50% < 190 μm.Chemical analysis given in Table 1 indicate that as the particle size decreased, Cr 2 O 3 content …
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3.4 Magnetic Separation of Anka Chromite Ore In this operation, use was made of the cross-belt separator. This technique is a continuous process carried out on a moving stream of particles passing into and through magnetic field. In this technique close control of the velocity of the passage of the particles is ensured to drastically reduce the ...
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The high cost of chrome ore new sand requires a recovery from the molding material mixture: FAT offers high performance plant - with min. 99 % purity!
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In this study, an optimum beneficiation route was developed for an existing concentrator that processes low-grade chromite deposits. This objective is challenging as the grade of the ore under consideration is approximately 5%, which is …
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Chromium is largely used as alloying elements in steels for production of stainless steels. It is added in form of ferro-chromium, which is presently imported from Russia and Germany to meet the need of Nigerian Steel Industry. Chromite ore (FeOCr2O3) is the most important mineral occurrence of chromium, and some deposits …
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Magnetic separation of chromite from different types of ores. MINERAL PROCESSING AND EXTRACTIVE METALLURGY REVIEW 197 Downloaded by [Tata Steel] at 20:30 01 June 2016 .
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TOMRA's X-Ray Transmission (XRT) sensor-based ore sorting is an established technology in physical separation that has proved extremely effective in mining operations for a variety of minerals, including chrome. ... This translates into higher costs, as the traditional methods for separating this low-chromite content material, such as Dense ...
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Liberated fine chromite minerals benefited from magnetic separation followed by Falcon concentrator. A chromite product with a grade > 37% was obtained. The effect of leaching conditions including acid concentration, temperature, time and solid-to-liquid ratio on the leaching behavior of Ni was investigated based on the Taguchi …
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The total chromite deposits of the world and beneficiation prospects have been described by various authors (Atalay and Ozbayolu, 1992, Guney et al., 2001, Murthy et al., 2011). India is the world's third largest producer of chromite ore and produces about 3.5–4 MTPA. The estimated reserve of chromite deposit in India is about 187 MT.
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Chromite recovery from UG2 tailings by physical separation and flotation was studied. Desliming, magnetic separation and acidic flotation (pH2.5) achieved target grades. …
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The Middle Group Chromitite layer (MG) spiral tailings was characterized using XRF, XRD, SEM and screen sieves with the aim of determining the viability of using the wet high …
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In the present study, a chromite concentrate was reprocessed by gravity (spiral concentrator) and magnetic separation to enhance the chromium-to-iron ratio. Also, …
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The low-grade siliceous chromite ore from Ghutrigaon, Odisha, India, containing ~ 16% Cr2O3, with Cr/Fe ratio of 1.97 and ~ 55% of SiO2, does not find any use in metallurgical industry and hence considered as waste. Mineralogical investigation indicates the presence of chromite and quartz as major minerals with minor fuchsite …
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Chromite ore is geologically associated with gangue materials which have lower density compared to pure chromite (FeO.Cr2O3). Gravity separation techniques are very suitable for beneficiation of ...
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