An efficient process for the beneficiation of a low grade chromite ore (PDF) An efficient process for the beneficiation of a low grade chromite ore | H. Cengizler and Tayfun Çiçek - Academia.edu Academia.edu no longer supports Internet Explorer.
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The beneficiation of low grade (Cr2O3% 26.88) chromite ore has been investigated using table. Optimization has been carried out using box-behnken statistical design (BBD).
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The yield is low of about 25-35%. During beneficiation, sub grade intermediate products of about 35-40% Cr203 get generated which finds very little or no use and these have been accumulating in the mines. A schematic diagram of a beneficiation plant in Sukinda is given in Figure 1. Developing a techno-economic scheme to upgrade the low grade ...
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The beneficiation of low grade (Cr2O3% 26.88) chromite ore has been investigated using table. Optimization has been carried out using box-behnken statistical design (BBD).
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The beneficiation studies of Suresh et al. (1981), concludes that low grade chromite ore of 16–25% Cr2O3, of Sitampundi area of India, cannot be upgraded by using tabling and flotation techniques, to meet the …
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The ore was classified as 'Podiform type Al-chromite' (Zedef et al., 1994). During the mining period, about 200 000 tons of ore were recovered from the central part of the chromite body where the Cr2O3 grade is the highest. When the Cr2O3 grade lowered to <50 %, the mine was abandoned, in October 1991.
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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 the lowest grade processed in Turkey. Detailed characterization, process mineralogy and liberation …
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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 ...
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The beneficiation of low grade (Cr2O3% 26.88) chromite ore has been investigated using table. Optimization has been carried out using box-behnken statistical design (BBD).
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The beneficiation of low grade (Cr2O3% 26.88) chromite ore has been investigated using table. Optimization has been carried …
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The present investigation emphasized on the liberation and beneficiation characteristics of Indian chromite oreto improve the Cr: Fe ratio . The off grade chro mite samp le …
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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 the lowest.
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chromite content of 20.03% with silica as the major gangue measured at 33.50%. The iron oxide content assayed at 17.94%. The chromite content corroborates the research that was conducted by [4] which indicated that there is sufficient amount of chromite in tailings streams measuring between 9–20% Cr 2 O 3.
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It was clearly demonstrated that MGS is an ideal beneficiation equipment for fine fractions of a low grade Cr2O3 ore. Based on the experimental results, a principal flowsheet for …
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Low grade chromite samples from rejected dumps and over-burdens were taken for ... ore containing minimum 48% Cr2O3 and Cr/Fe ratio above 2.8. Thus, it is found that charge- ... beneficiation process to up-grade the ore to the level …
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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 ...
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The beneficiation of low grade (Cr2O3% 26.88) chromite ore has been investigated using table. Optimization has been carried out using box-behnken statistical design (BBD).
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The beneficiation of low grade (Cr2O3% 26.88) chromite ore has been investigated using table. Optimization has been carried out using box-behnken statistical design (BBD).
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A chromite concentrate with 45.29wt% Cr2O3 and a Cr:Fe mass ratio of 1.85 can be produced from these low-grade chromite ore beneficiation plant rejects. View Show abstract
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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 …
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It is found that low-grade ferruginous chromite ore can be upgraded by reduction roasting, and 61.2% Cr2O3 was recovered with a chromium-to-iron ratio of 1.93 from a feed chromium-to-iron ratio of ...
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The Cr/Fe ratio can thus be used as a proxy for the quality of chromite ore [22]. The lower grade deposits, with low Cr/Fe ratios (i.e., high iron content and low Cr2 O3 content) were as a result not mined. These low-grade deposits have however, been exploited and successfully upgraded using physical methods such as gravity separation [1,4].
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Beneficiation is mostly limited to crushing, grinding, desliming and hydrosizing to produce a concentrate of about 50% Cr203 with a yield of about 25-35%. By this also, a huge …
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This paper presents the results of an investigation on the concentration of a low-grade (30% to 35% Cr2O3) chromite ore from Chickay Mine, East of Sudan, using a shaking table. ... The sample The plant tailings were collected from a contained 21.06% Cr2O3, 23.02% Fe(T), chromite beneficiation plant at Sukinda, 18.01% SiO2 and 7.76% of Loss on ...
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In this study concentrates of typical chromite processing plant, located in Orhaneli-Bursa were used to investigate potentiality of increasing Cr2O3 grades of shaking tables concentrates by slon ...
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The ore was classified as 'Podiform type Al-chromite' (Zedef et al., 1994). During the mining period, about 200 000 tons of ore were recovered from the central part of the chromite body where the Cr2O3 grade is the highest. When the Cr2O3 grade lowered to <50 %, the mine was abandoned, in October 1991.
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Low-grade chromite of Muslim Bagh, Balochistan, Pakisktan was beneficiated to produce chromite concen- trate by cationic flotation using disodium n-octadecyl sulfosuccinamate as collector. Effect of various parameters such as grind size, pulp density, pH, and conditioning time on the overall grade and recovery of chromite …
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In a novel method of beneficiation of low-grade chromite ore, nuggets, 25 mm in diameter and 10 mm long, made of chromite ore and coke fines, are subjected to partial reduction. A significant degree of reduction of iron oxide is observed at temperatures of 1373–1523 K up to a reduction time of 240 min, and subsequent magnetic separation …
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It is found that low-grade ferruginous chromite ore can be upgraded by reduction roasting, and 61.2% Cr2O3 was recovered with a chromium-to-iron ratio of 1.93 from a feed chromium-to-iron ratio of ...
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The shaking table gave the best results for chromite beneficiation and a concentrate of 47.02% Cr2O3 grade and 94.29% recovery were obtained by using a -0.3+0.106 mm particle size fraction.
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