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The applicability of centrifugal force multigravity separator (MGS) to concentrate fine fractions (–0·1 mm) of a low grade chromite ore assaying 9·3%Cr2O3 …
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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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BENEFICIATION OF LANDI RAUD (MALAKAND, NWFP) CHROMITE ORE A. Hafeez, Saqib Ahmad and K. Hussain PCSIR Laboratories, Lahore-54600 (Received May 29, 1988; revised September 7, 1988) Low grade chromite ore from Landhi Raud in the assay range of 27-28 % Cr, 03 has been upgraded
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the optimum operating conditions, low grade chromite sample was upgraded to 41.1% Cr2O3 with 62% recovery using MGS. Keywords: Low Grade Chromite Ore, MGS, Beneficiation. 1. Introduction Chromite is recognized as an essential mineral for the production of various types of stainless steels and special ferrochrome alloys.
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Low-grade chromite of Muslim Bagh, Balochistan, Pakisktan was beneficiated to produce chromite concentrate by cationic flotation using disodium n-octadecyl sulfosuccinamate as collector.
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The research work of Rao et al. (1987) reveals that low-grade chromite ore of about 20%–30% Cr 2 O 3 of Sukinda region, India can be upgraded to 50% Cr 2 O 3 …
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CrO 4 was prepared from low grade chromite of Muslimbagh area. Sodium chromate has diversity in the industrial and laboratory applications. Head sample was prepared by crushing, pulverizing and sieving for the analysis of chromite ore. Beneficiation of low grade chromite ore was carried out to get 45 - 48% Cr 2 O 3
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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 ...
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In the paper are shown the history, processing and applications of chromite. Chromite is an oxide of iron and chromium with the chemical composition FeO.Cr2O3 and belonging to the spinel group.
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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...
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This study detailed how direct acid leaching can be used to extract high grade chromite from low grade chromite ore for utilization in the steel industry.
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The detailed study of chromite ore beneficiation processes reveals that the opportunities still exist to recover chromite values from the low/sub-grade ores and …
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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 metallurgical grade due to the intimate association of iron in the lattice of chromite.
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The beneficiation of chromite (Burt 1984) and processing of its low-grade ores (Ağaçayak, 2004; Amer and İbrahim, 1996; Sönmez and Turgut, 1998) are traditionally performed using gravity ...
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Chromite ore processing tailings and low-grade manganese ores are typically considered waste due to their limited or negligible utility, leading to environmental and storage concerns. Researchers globally have explored various methods to utilize or upgrade these wastes, particularly because dumping chromite ore has been linked to …
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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 studies were …
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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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This study was performed on disseminated low-grade chromite ore, Gedarif State, Umm Saqata-Qala Elnahal, to treatment the ore by Heavy media separation (HMS) with low intensity magnetic separation ...
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maximize the utilization of low grade ores and minimize the high grade ore consumption. Generally low grade and finely disseminated ores need fine grinding, posing problem in …
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The beneficiation of low-grade iron ores is a key research and development topic in the mineral processing industry. The gradual exhaustion of high-grade iron ore reserves, and rising consumer iron and steel demand globally necessitate efficient low-quality iron ore beneficiation to meet steelmaking quality requirements. This …
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Keywords: chromite, beneficiation, spiral concentrator, teetered bed separator 1. Introduction The beneficiation of chromite (Burt 1984; 1999) and processing of its low-grade ores (Ağaçayak, 2004; Amer and İbrahim, 1996; Sönmez and Turgut, 1998) are traditionally performed using gravity concentration methods.
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1. Introduction. The international market for chromite ore (synthetic formula – FeO.Cr 2 O 3), the only commercially viable source of new chromium (Cr) units, is predominantly driven by the global demand for ferrochrome (FeCr).Secondary FeCr markets comprise of the Cr chemicals-, abrasives-, refractories-, and foundry sand …
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This article reviews the major process flow sheets in practice for the recovery of chromite values from various types of ores and critical issues related to chromite ore beneficiation.
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Request PDF | Low-Grade Chromite Beneficiation Through Spiral Concentration: A Review from the Turkish Market Perspective | Chromite production is required for numerous industrial applications ...
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Conclusion In the present investigation, beneficiation of low grade chromite ore was studied using multi gravity separator. A concentrate grade of 41.1% Cr2O3 can be achieved with 62 %Cr2O3 recovery from the ore containing 26.8% Cr2O3.The optimum operation parameters determined for concentration of chromite ores are as feed particle size ...
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low and sub-grade ore (10-38% Cr203). Beneficiation is mostly limited to size reduction, desliming and classification. 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.
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Keywords: beneficiation, cationic flotation, disodium n-octadecyl sulfosuccinamate, chromite ore, Pakistan chromite, low-grade chromite Table 1. Average chemical analysis of the Muslim Bagh, Balochistan, Pakistan low-grade chromite ore Constituents Percentage Cr 2 O 3 38.06 Fe 2 O 3 13.80 SiO 2 20.02 Al 2 O 3 10.50 MgO 14.40 LOI …
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This investigated study aims for modeling and optimization of parameters process via Central Composite Design on beneficiation of massive low-grade Sudanese chromite by using pilot plant shaking table as the separator. 2. Materials and Methods: 2.1 Raw material of chromite sample: A 100 Kg of low-grade chromite ore contained 30.21%, Cr 2 O 3
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This paper reviews the ~ajor deposits of lower-grade chromite in the world, and a wide variety of methods used for the recovery of ch.romlum f~om them. Ga~gue materials in …
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A relatively significant amount of work has been conducted on reducing chromite losses in tailings [64,65,66,67,68,69], the beneficiation of low- and sub-grade ores [10,70,71,72], recovering ultra-fine chromite particles [73,74], and the general reprocessing of tailing stockpiles [10,60].
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